MAX6165BESA+ - Maxim Integrated - Datasheet.Directory

General Description

The MAX6161–MAX6168 are precision, low-dropout,

micropower voltage references. These three-terminal

devices operate with an input voltage range from (VOUT

+ 200mV) to 12.6V and are available with output voltage

options of 1.25V, 1.8V, 2.048V, 2.5V, 3V, 4.096V, 4.5V,

and 5V. They feature a proprietary curvature-correction

circuit and laser-trimmed thin-film resistors that result in a

very low temperature coefficient of 5ppm/°C (max) and an

initial accuracy of ±2mV (max). Specifications apply to the

extended temperature range (-40°C to +85°C).

The MAX6161–MAX6168 typically draw only 100μA of

supply current and can source 5mA (4mA for MAX6161)

or sink 2mA of load current. Unlike conventional shunt-

mode (two-terminal) references that waste supply

current and require an external resistor, these devices

offer a supply current that is virtually independent

of the supply voltage (8μA/V variation) and do not

require an external resistor. Additionally, the internally

compensated devices do not require an external compensation

capacitor. Eliminating the external compensation capacitor

saves valuable board area in space-critical applications.

A low-dropout voltage and a supply-independent, ultra-low

supply current make these devices ideal for battery-

operated, high-performance, low-voltage systems.

The MAX6161–MAX6168 are available in 8-pin SO

packages.

Benets and Features

●±2mV (max) Initial Accuracy

●5ppm/°C (max) Temperature Coefficient

●5mA Source Current at 0.9mV/mA

●2mA Sink Current at 2.5mV/mA

● Stable with 1μF Capacitive Loads

●No External Capacitor Required

● 100μA (typ) Quiescent Supply Current

● 200mV (max) Dropout at 1mA Load Current

●Output Voltage Options: 1.25V, 1.8V, 2.048V, 2.5V,

3V, 4.096V, 4.5V, 5V

Applications

●Analog-to-Digital Converters (ADCs)

●Portable Battery-Powered Systems

●Notebook Computers

●PDAs, GPS, DMMs

●Cellular Phones

●Precision +3V/+5V Systems

Ordering Information, Typical Operating Circuit, and

Selector Guide appear at end of data sheet.

19-1650; Rev 4; 12/08

Pin Conguration

OUT

N.C.GND

N.C.

N.C.IN

N.C.

TOP VIEW

MAX6161–

MAX6168

MAX6161–MAX6168 Precision, Micropower, Low-Dropout,

High-Output-Current, SO-8 Voltage References

Voltages Referenced to GND

IN .......................................................................... -0.3 to +13.5V

OUT ............................................................-0.3V to (VIN + 0.3V)

Output Short-Circuit Duration to GND or IN (VIN ≤ 6V) .... Continuous

Output Short-Circuit Duration to GND or IN (VIN > 6V) ........ 60s

Continuous Power Dissipation (TA = +70°C)

8-Pin SO (derate 5.88mW/°C above +70°C)...............471mW

Operating Temperature Range ...........................-40°C to +85°C

Storage Temperature Range………….…………-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

(VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Output Voltage VOUT TA = +25°C MAX6161A 1.248 1.250 1.252 V

MAX6161B 1.246 1.250 1.254

Output Voltage Temperature

Coefcient (Note 2) TCVOUT

MAX6161A 4 10

ppm/°C

MAX6161B 6 15

Line Regulation ΔVOUT/

ΔVIN 2.5V ≤ VIN ≤ 12.6V 12 150 µV/V

Load Regulation ΔVOUT/

ΔIOUT

Sourcing: 0 ≤ IOUT ≤ 4mA 0.5 0.9

mV/mA

Sinking: -2mA ≤ IOUT ≤ 0 1.3 2.5

OUT Short-Circuit Current ISC

Short to GND 110 mA

Short to IN 25

Long-Term Stability ΔVOUT/

time 1000hr at +25°C 115 ppm/

1000hr

Output Voltage Hysteresis

(Note 3)

ΔVOUT/

cycle 125 ppm

DYNAMIC CHARACTERISTICS

Noise Voltage eOUT

f = 0.1Hz to 10Hz 20 µVp-p

f = 10Hz to 10kHz 15 µVRMS

Ripple Rejection VOUT/VIN VIN = +5V ±100mV, f = 120Hz 80 dB

Turn-On Settling Time tRVOUT to 0.1% of nal value, COUT = 50pF 50 µs

INPUT CHARACTERISTICS

Supply Voltage Range VIN Guaranteed by line-regulation test 2.5 12.6 V

Quiescent Supply Current IIN 125 150 µA

Change in Supply Current ΔIIN/ΔVIN 2.5V ≤ VIN ≤ 12.6V 3.2 8.0 µA/V

Absolute Maximum Ratings

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these

or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect

device reliability.

Electrical Characteristics—MAX6161 (VOUT = 1.25V)

MAX6161–MAX6168 Precision, Micropower, Low-Dropout,

High-Output-Current, SO-8 Voltage References

www.maximintegrated.com Maxim Integrated

│

(VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Output Voltage VOUT TA = +25°C MAX6168A 1.798 1.800 1.802 V

MAX6168B 1.795 1.800 1.805

Output Voltage Temperature

Coefcient (Note 2) TCVOUT

MAX6168A 2 5

ppm/°C

MAX6168B 4 10

Line Regulation ΔVOUT/

ΔVIN 2.5V ≤ VIN ≥ 12.6V 42 200 µV/V

Load Regulation ΔVOUT/

ΔIOUT

Sourcing: 0 ≤ IOUT ≤ 5mA 0.5 0.9

mV/mA

Sinking: -2mA ≤ IOUT ≤ 0 1.5 4

OUT Short-Circuit Current ISC

Short to GND 110 mA

Short to IN 25

Long-Term Stability ΔVOUT/

time 1000hr at +25°C 80 ppm/

1000hr

Output Voltage Hysteresis

(Note 3)

ΔVOUT/

cycle 125 ppm

DYNAMIC CHARACTERISTICS

Noise Voltage eOUT

f = 0.1Hz to 10Hz 22 µVp-p

f = 10Hz to 10kHz 25 µVRMS

Ripple Rejection ΔVOUT/ΔVIN VIN = +5V ±100mV, f = 120Hz 78 dB

Turn-On Settling Time tRVOUT to 0.1% of nal value, COUT = 50pF 100 µs

INPUT CHARACTERISTICS

Supply Voltage Range VIN Guaranteed by line-regulation test 2.5 12.6 V

Quiescent Supply Current IIN 100 120 µA

Change in Supply Current ΔIIN/ΔVIN 2.5V ≤ VIN ≤ 12.6V 3.4 8.0 µA/V

Electrical Characteristics—MAX6168 (VOUT = 1.800V)

MAX6161–MAX6168 Precision, Micropower, Low-Dropout,

High-Output-Current, SO-8 Voltage References

www.maximintegrated.com Maxim Integrated

│

(VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Output Voltage VOUT TA = +25°C MAX6162A 2.046 2.048 2.050 V

MAX6162B 2.043 2.048 2.053

Output Voltage Temperature

Coefcient (Note 2) TCVOUT

MAX6162A 2 5

ppm/°C

MAX6162B 4 10

Line Regulation ΔVOUT/

ΔVIN 2.5V ≤ VIN ≤ 12.6V 42 250 µV/V

Load Regulation ΔVOUT/

ΔIOUT

Sourcing: 0 ≤ IOUT ≤ 5mA 0.5 0.9

mV/mA

Sinking: -2mA ≤ IOUT ≤ 0 1.5 4

OUT Short-Circuit Current ISC

Short to GND 110 mA

Short to IN 25

Long-Term Stability ΔVOUT/

time 1000hr at +25°C 80 ppm/

1000hr

Output Voltage Hysteresis

(Note 3)

ΔVOUT/

cycle 125 ppm

DYNAMIC CHARACTERISTICS

Noise Voltage eOUT

f = 0.1Hz to 10Hz 22 µVp-p

f = 10Hz to 10kHz 25 µVRMS

Ripple Rejection VOUT/VIN VIN = 5V ±100mV, f = 120Hz 78 dB

Turn-On Settling Time tRVOUT to 0.1% of nal value, COUT = 50pF 100 µs

INPUT CHARACTERISTICS

Supply Voltage Range VIN Guaranteed by line-regulation test 2.5 12.6 V

Quiescent Supply Current IIN 100 120 µA

Change in Supply Current ΔIIN/ΔVIN 2.5V ≤ VIN ≤ 12.6V 3.4 8.0 µA/V

Electrical Characteristics—MAX6162 (VOUT = 2.048V)

MAX6161–MAX6168 Precision, Micropower, Low-Dropout,

High-Output-Current, SO-8 Voltage References

www.maximintegrated.com Maxim Integrated

│

(VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Output Voltage VOUT TA = +25°C MAX6166A 2.498 2.500 2.502 V

MAX6166B 2.495 2.500 2.505

Output Voltage Temperature

Coefcient (Note 2) TCVOUT

MAX6166A 2 5

ppm/°C

MAX6166B 4 10

Dropout Voltage (Note 4) VIN - VOUT IOUT = 1mA 50 200 mV

Line Regulation ΔVOUT/

ΔVIN

VOUT + 0.2V ≤ VIN ≤ 12.6V 60 250 µV/V

Load Regulation ΔVOUT/

ΔIOUT

Sourcing: 0 ≤ IOUT ≤ 5mA 0.5 0.9

mV/mA

Sinking: -2mA ≤ IOUT ≤ 0 1.6 5

OUT Short-Circuit Current ISC

Short to GND 110 mA

Short to IN 25

Long-Term Stability ΔVOUT/

time 1000hr at +25°C 80 ppm/

1000hr

Output Voltage Hysteresis

(Note 3)

ΔVOUT/

cycle 125 ppm

DYNAMIC CHARACTERISTICS

Noise Voltage eOUT

f = 0.1Hz to 10Hz 27 µVp-p

f = 10Hz to 10kHz 30 µVRMS

Ripple Rejection VOUT/VIN VIN = 5V ±100mV, f = 120Hz 76 dB

Turn-On Settling Time tRVOUT to 0.1% of nal value, COUT = 50pF 115 µs

INPUT CHARACTERISTICS

Supply Voltage Range VIN Guaranteed by line-regulation test VOUT + 0.2 12.6 V

Quiescent Supply Current IIN 100 120 µA

Change in Supply Current ΔIIN/ΔVIN VOUT + 0.2V ≤ VIN ≤ 12.6V 3.2 8.0 µA/V

Electrical Characteristics—MAX6166 (VOUT = 2.500V)

MAX6161–MAX6168 Precision, Micropower, Low-Dropout,

High-Output-Current, SO-8 Voltage References

www.maximintegrated.com Maxim Integrated

│

(VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Output Voltage VOUT TA = +25°C MAX6163A 2.998 3.000 3.002 V

MAX6163B 2.995 3.000 3.005

Output Voltage Temperature

Coefcient (Note 2) TCVOUT

MAX6163A 2 5

ppm/°C

MAX6163B 4 10

Dropout Voltage (Note 4) VIN - VOUT IOUT = 1mA 50 200 mV

Line Regulation ΔVOUT/

ΔVIN

VOUT + 0.2V ≤ VIN ≤ 12.6V 83 300 µV/V

Load Regulation ΔVOUT/

ΔIOUT

Sourcing: 0 ≤ IOUT ≤ 5mA 0.5 0.9

mV/mA

Sinking: -2mA ≤ IOUT ≤ 0 1.8 5

OUT Short-Circuit Current ISC

Short to GND 110 mA

Short to IN 25

Long-Term Stability ΔVOUT/

time 1000hr at +25°C 80 ppm/

1000hr

Output Voltage Hysteresis

(Note 3)

ΔVOUT/

cycle 125 ppm

DYNAMIC CHARACTERISTICS

Noise Voltage eOUT

f = 0.1Hz to 10Hz 35 µVp-p

f = 10Hz to 10kHz 40 µVRMS

Ripple Rejection VOUT/VIN VIN = 5V ±100mV, f = 120Hz 76 dB

Turn-On Settling Time tRVOUT to 0.1% of nal value, COUT = 50pF 115 µs

INPUT CHARACTERISTICS

Supply Voltage Range VIN Guaranteed by line-regulation test VOUT + 0.2 12.6 V

Quiescent Supply Current IIN 100 120 µA

Change in Supply Current ΔIIN/ΔVIN VOUT + 0.2V ≤ VIN ≤ 12.6V 3.2 8.0 µA/V

Electrical Characteristics—MAX6163 (VOUT = 3.000V)

MAX6161–MAX6168 Precision, Micropower, Low-Dropout,

High-Output-Current, SO-8 Voltage References

www.maximintegrated.com Maxim Integrated

│

(VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Output Voltage VOUT TA = +25°C MAX6164A 4.094 4.096 4.098 V

MAX6164B 4.091 4.096 4.101

Output Voltage Temperature

Coefcient (Note 2) TCVOUT

MAX6164A 2 5

ppm/°C

MAX6164B 4 10

Dropout Voltage (Note 4) VIN - VOUT IOUT = 1mA 50 200 mV

Line Regulation ΔVOUT/

ΔVIN

VOUT + 0.2V ≤ VIN ≤ 12.6V 140 300 µV/V

Load Regulation ΔVOUT/

ΔIOUT

Sourcing: 0 ≤ IOUT ≤ 5mA 0.6 0.9 mV/mA

Sinking: -2mA ≤ IOUT ≤ 0 2.0 7.0

OUT Short-Circuit Current ISC

Short to GND 110 mA

Short to IN 25

Long-Term Stability ΔVOUT/

time 1000hr at +25°C 80 ppm/

1000hr

Output Voltage Hysteresis

(Note 3)

ΔVOUT/

cycle 125 ppm

DYNAMIC CHARACTERISTICS

Noise Voltage eOUT

f = 0.1Hz to 10Hz 50 µVp-p

f = 10Hz to 10kHz 50 µVRMS

Ripple Rejection VOUT/VIN VIN = 5V ±100mV, f = 120Hz 72 dB

Turn-On Settling Time tRVOUT to 0.1% of nal value, COUT = 50pF 190 µs

INPUT CHARACTERISTICS

Supply Voltage Range VIN Guaranteed by line-regulation test VOUT + 0.2 12.6 V

Quiescent Supply Current IIN 100 120 µA

Change in Supply Current ΔIIN/ΔVIN VOUT + 0.2V ≤ VIN ≤ 12.6V 3.2 8.0 µA/V

Electrical Characteristics—MAX6164 (VOUT = 4.096V)

MAX6161–MAX6168 Precision, Micropower, Low-Dropout,

High-Output-Current, SO-8 Voltage References

www.maximintegrated.com Maxim Integrated

│

(VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Output Voltage VOUT TA = +25°C MAX6167A 4.498 4.500 4.502 V

MAX6167B 4.495 4.500 4.505

Output Voltage Temperature

Coefcient (Note 2) TCVOUT

MAX6167A 2 5

ppm/°C

MAX6167B 4 10

Dropout Voltage (Note 4) VIN - VOUT IOUT = 1mA 50 200 mV

Line Regulation ΔVOUT/

ΔVIN

VOUT + 0.2V ≤ VIN ≤ 12.6V 160 450 µV/V

Load Regulation ΔVOUT/

ΔIOUT

Sourcing: 0 ≤ IOUT ≤ 5mA 0.6 0.9

mV/mA

Sinking: -2mA ≤ IOUT ≤ 0 2.3 8.0

OUT Short-Circuit Current ISC

Short to GND 110 mA

Short to IN 25

Long-Term Stability ΔVOUT/

time 1000hr at +25°C 80 ppm/

1000hr

Output Voltage Hysteresis

(Note 3)

ΔVOUT/

cycle 125 ppm

DYNAMIC CHARACTERISTICS

Noise Voltage eOUT

f = 0.1Hz to 10Hz 55 µVp-p

f = 10Hz to 10kHz 55 µVRMS

Ripple Rejection VOUT/VIN VIN = 5V ±100mV, f = 120Hz 70 dB

Turn-On Settling Time tRVOUT to 0.1% of nal value, COUT = 50pF 230 µs

INPUT CHARACTERISTICS

Supply Voltage Range VIN Guaranteed by line-regulation test VOUT + 0.2 12.6 V

Quiescent Supply Current IIN 100 120 µA

Change in Supply Current ΔIIN/ΔVIN VOUT + 0.2V ≤ VIN ≤ 12.6V 3.1 8.0 µA/V

Electrical Characteristics—MAX6167 (VOUT = 4.500V)

MAX6161–MAX6168 Precision, Micropower, Low-Dropout,

High-Output-Current, SO-8 Voltage References

www.maximintegrated.com Maxim Integrated

│

(VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1)

Note 1: 100% production tested at TA = +25°C. Guaranteed by design for TA = -40°C to +85°C.

Note 2: Temperature Coefficient is specified by the “box” method; i.e., the maximum ΔVOUT is divided by the maximum ΔT.

Note 3: Thermal Hysteresis is defined as the change in TA = +25°C output voltage before and after temperature cycling of the

device (from TA = TMIN to TMAX). Initial measurement at TA = +25°C is followed by temperature cycling the device to

TA = +85°C then to TA = -40°C, and another measurement at TA = +25°C is compared to the original measurement at

TA = +25°C.

Note 4: Dropout voltage is the minimum input voltage at which VOUT changes ≤ 0.2% from VOUT at VIN = 5.0V

(VIN = 5.5V for MAX6165).

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Output Voltage VOUT TA = +25°C MAX6165A 4.998 5.000 5.002 V

MAX6165B 4.995 5.000 5.005

Output Voltage Temperature

Coefcient (Note 2) TCVOUT

MAX6165A 2 5

ppm/°C

MAX6165B 4 10

Dropout Voltage (Note 4) VIN - VOUT IOUT = 1mA 50 200 mV

Line Regulation ΔVOUT/

ΔVIN

VOUT + 0.2V ≤ VIN ≤ 12.6V 180 400 µV/V

Load Regulation ΔVOUT/

ΔIOUT

Sourcing: 0 ≤ IOUT ≤ 5mA 0.6 0.9

mV/mA

Sinking: -2mA ≤ IOUT ≤ 0 2.4 8.0

OUT Short-Circuit Current ISC

Short to GND 110 mA

Short to IN 25

Long-Term Stability ΔVOUT/

time 1000hr at +25°C 80 ppm/

1000hr

Output Voltage Hysteresis

(Note 3)

ΔVOUT/

cycle 125 ppm

DYNAMIC CHARACTERISTICS

Noise Voltage eOUT

f = 0.1Hz to 10Hz 60 µVp-p

f = 10Hz to 10kHz 60 µVRMS

Ripple Rejection VOUT/VIN VIN = 5.5V ±100mV, f = 120Hz 65 dB

Turn-On Settling Time tRVOUT to 0.1% of nal value, COUT = 50pF 300 µs

INPUT CHARACTERISTICS

Supply Voltage Range VIN Guaranteed by line-regulation test VOUT + 0.2 12.6 V

Quiescent Supply Current IIN 100 120 µA

Change in Supply Current ΔIIN/ΔVIN VOUT + 0.2V ≤ VIN ≤ 12.6V 3.1 8.0 µA/V

Electrical Characteristics—MAX6165 (VOUT = 5.000V)

MAX6161–MAX6168 Precision, Micropower, Low-Dropout,

High-Output-Current, SO-8 Voltage References

www.maximintegrated.com Maxim Integrated

│

(VIN = +5V for MAX6161–MAX6168, VIN = +5.5V for MAX6165, IOUT = 0, TA = +25°C, unless otherwise noted.) (Note 5)

Typical Operating Characteristics

MAX6161

OUTPUT VOLTAGE TEMPERATURE DRIFT

MAX6161/68 toc01

TEMPERATURE (°C)

OUTPUT VOLTAGE (V)

705525 40-10 0 10-25

1.2496

1.2497

1.2498

1.2499

1.2500

1.2501

1.2502

1.2503

1.2504

1.2505

1.2495

-40 85

3 TYPICAL PARTS

MAX6165

LONG-TERM DRIFT

MAX6161/68 toc04

TIME (hrs)

DRIFT (ppm)

768

192 384 576

-90

-80

-70

-60

-50

-40

-30

-20

-10

-100

0 960

-3

-1

-2

-4 -2 0 2 4

MAX6161/68 toc07

LOAD CURRENT (mA)

OUTPUT VOLTAGE CHANGE (mV)

TA = +25°C

TA = -40°C

MAX6161

LOAD REGULATION

TA = +85°C

MAX6165

OUTPUT VOLTAGE TEMPERATURE DRIFT

MAX6161/68 toc02

TEMPERATURE (°C)

OUTPUT VOLTAGE (V)

7055-25 -10 0 2510 40

4.9985

4.9990

4.9995

5.0000

5.0005

5.0010

5.0015

5.0020

4.9980

-40 85

3 TYPICAL PARTS

-300

-200

-100

100

200

300

2 4 6 8 10 12

MAX6161

LINE REGULATION

MAX6161/68 toc05

INPUT VOLTAGE (V)

OUTPUT VOLTAGE CHANGE (µV)

TA = +85°C

TA = +25°C

TA = -40°C

-6

-2

-4

-6 -2-4 0 2 4 6

MAX6161/68 toc08

LOAD CURRENT (mA)

OUTPUT VOLTAGE CHANGE (mV)

MAX6165

LOAD REGULATION

TA = +25°C

TA = +85°C

TA = -40°C

MAX6161

LONG-TERM DRIFT

MAX6161/68 toc03

TIME (hrs)

DRIFT (ppm)

768

192 384 576

-30

-20

-10

-40

0 960

-1200

-600

-800

-1000

-400

-200

200

5 97 11 13

MAX6165

LINE REGULATION

MAX6161/68 toc06

INPUT VOLTAGE (V)

OUTPUT VOLTAGE CHANGE (µV)

TA = +85°C

TA = +25°C

TA = -40°C

0.10

0.05

0.20

0.15

0.25

0.30

0 21 3 4 5

MAX6166

DROPOUT VOLTAGE

vs. LOAD CURRENT

MAX6161/68 toc09

LOAD CURRENT (mA)

DROPOUT VOLTAGE (V)

= +85°C

= +25°C

= -40°C

MAX6161–MAX6168 Precision, Micropower, Low-Dropout,

High-Output-Current, SO-8 Voltage References

Maxim Integrated

│

www.maximintegrated.com

(VIN = +5V for MAX6161–MAX6168, VIN = +5.5V for MAX6165, IOUT = 0, TA = +25°C, unless otherwise noted.) (Note 5)

Typical Operating Characteristics (continued)

0.05

0.15

0.10

0.20

0.25

0 21 3 4 5

TA = +85°C

TA = +25°C

TA = -40°C

MAX6161/68 toc10

LOAD CURRENT (mA)

DROPOUT VOLTAGE (V)

MAX6165

DROPOUT VOLTAGE

vs. LOAD CURRENT

MAX6161

SUPPLY CURRENT vs. SUPPLY VOLTAGE

MAX6161/68 toc13

SUPPLY VOLTAGE (V)

10864

108

116

124

132

140

148

156

164

172

180

100

412

SUPPLY CURRENT (µA)

TA = +85°C

TA = +25°C

TA = -40°C

MAX6165

SUPPLY CURRENT vs. TEMPERATURE

MAX6161/68 toc16

TEMPERATURE (°C)

SUPPLY CURRENT (µA)

603510-15

102

108

114

120

126

132

138

144

150

-40 85

VCC = +12.6V

VCC = +5.2V

MAX6161/68 toc11

FREQUENCY (kHz)

PSRR (dB)

-10

-20

-30

-40

-50

-60

-70

-80

-90

0.001 1 10 1000.01 0.1 1000

MAX6161

POWER-SUPPLY REJECTION RATIO

vs. FREQUENCY

MAX6165

SUPPLY CURRENT vs. SUPPLY VOLTAGE

MAX6161/68 toc14

SUPPLY VOLTAGE (V)

SUPPLY CURRENT (µA)

131210 117 8 96

102

108

114

120

126

132

138

144

150

5 14

TA = +85°C

TA = +25°C

TA = -40°C

0.001 10 1000

100

140

120

160

180

200

220

MAX6161/68 toc17

FREQUENCY (kHz)

OUTPUT IMPEDANCE (

Ω)

0.1

MAX6161

OUTPUT IMPEDANCE

vs. FREQUENCY

-70

-80

0.001 10 1000

-60

-50

-40

-30

-20

-10

FREQUENCY (kHz)

PSRR (dB)

0.1

MAX6165

POWER-SUPPLY REJECTION RATIO

vs. FREQUENCY

MAX6161/68 toc12

MAX6161

SUPPLY CURRENT vs. TEMPERATURE

MAX6161/68 toc15

TEMPERATURE (°C)

SUPPLY CURRENT (µA)

603510-15

108

116

124

132

140

148

156

164

172

180

100

-40 85

VCC = +12.6V

VCC = +5V

VCC = +2.5V

180

0.001 10 1000

100

120

140

160

MAX6161/68 toc18

FREQUENCY (kHz)

OUTPUT IMPEDANCE (Ω)

0.1

MAX6165

OUTPUT IMPEDANCE

vs. FREQUENCY

MAX6161–MAX6168 Precision, Micropower, Low-Dropout,

High-Output-Current, SO-8 Voltage References

Maxim Integrated

│

www.maximintegrated.com

(VIN = +5V for MAX6161–MAX6168, VIN = +5.5V for MAX6165, IOUT = 0, TA = +25°C, unless otherwise noted.) (Note 5)

Typical Operating Characteristics (continued)

VOUT

10µV/div

1s/div

MAX6161

0.1Hz TO 10Hz OUTPUT NOISE

MAX6161/68 toc19

VOUT

500mV/div

VIN

5V/div

10µs/div

MAX6161

TURN-ON TRANSIENT

(CL = 50pF)

MAX6161/68 toc21

IOUT

500µA/div

VOUT

AC-COUPLED

100mV/div

400µs/div

MAX6161

LOAD TRANSIENT

(IOUT = ±250µA, VIN = 5.0, CL = 0)

+250µA

-250µA

MAX6161/68 toc23

VOUT

10µV/div

1s/div

MAX6165

NOISE

MAX6161/68 toc20

VOUT

2V/div

VIN

5V/div

40µs/div

MAX6165

TURN-ON TRANSIENT

(CL = 50pF)

MAX6161/67 toc22

IOUT

500µA/div

VOUT

AC-COUPLED

50mV/div

400µs/div

MAX6165

LOAD TRANSIENT

(IOUT = ±250µA, CL = 0, VIN = 5.5V)

+250µA

-250µA

MAX6161/68 toc24

MAX6161–MAX6168 Precision, Micropower, Low-Dropout,

High-Output-Current, SO-8 Voltage References

Maxim Integrated

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(VIN = +5V for MAX6161–MAX6168, VIN = +5.5V for MAX6165, IOUT = 0, TA = +25°C, unless otherwise noted.) (Note 5)

Typical Operating Characteristics (continued)

IOUT

500µA/div

VOUT

AC-COUPLED

10mV/div

400µs/div

MAX6161

LOAD TRANSIENT

(IOUT = ±250µA, VIN = 5.0V, CL = 1µF)

+250µA

-250µA

MAX6161/68 toc25

IOUT

5mA/div

VOUT

AC-COUPLED

100mV/div

400µs/div

MAX6161

LOAD TRANSIENT

(VIN = 5.0V, CL = 0, IOUT = ±2mA)

+2mA

-2mA

MAX6161/68 toc27

IOUT

5mA/div

VOUT

AC-COUPLED

50mV/div

400µs/div

MAX6161

LOAD TRANSIENT

(VIN = 5.0V, CL = 1µF, IOUT = ±2mA)

+2mA

-2mA

MAX6161/68 toc29

IOUT

500µA/div

VOUT

AC-COUPLED

20mV/div

400µs/div

MAX6165

LOAD TRANSIENT

(IOUT = ±250µA, CL = 1µF, VIN = 5.5V)

+250µA

-250µA

MAX6161/68 toc26

IOUT

5mA/div

VOUT

AC-COUPLED

50mV/div

400µs/div

MAX6165

LOAD TRANSIENT

(CL = 0, IOUT = ±2mA, VIN = 5.5V)

+2mA

-2mA

MAX6161/68 toc28

IOUT

5mA/div

VOUT

AC-COUPLED

20mV/div

400µs/div

MAX6165

LOAD TRANSIENT

(CL = 1µF, IOUT = ±2mA, VIN = 5.5V)

+2mA

-2mA

MAX6161/68 toc30

MAX6161–MAX6168 Precision, Micropower, Low-Dropout,

High-Output-Current, SO-8 Voltage References

Maxim Integrated

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(VIN = +5V for MAX6161–MAX6168, VIN = +5.5V for MAX6165, IOUT = 0, TA = +25°C, unless otherwise noted.) (Note 5)

Note 5:

Many of the Typical Operating Characteristics of the MAX6161 family are extremely similar. The extremes of these characteristics

are found in the MAX6161 (1.25V output) and the MAX6165 (5.0V output). The Typical Operating Characteristics of the remainder

of the MAX6161 family typically lie between these two extremes and can be estimated based on their output voltages.

Typical Operating Characteristics (continued)

IOUT

5mA/div

VOUT

AC-COUPLED

200mV/div

400µs/div

MAX6161

LOAD TRANSIENT

(VIN = 5.0V, CL = 0, IOUT = ±4mA)

+4mA

-4mA

MAX6161/68 toc31

IOUT

5mA/div

VOUT

AC-COUPLED

50mV/div

400µs/div

MAX6161

LOAD TRANSIENT

(VIN = 5.0V, CL = 1µF, IOUT = ±4mA)

+4mA

-4mA

MAX6161/68 toc33

VIN

500mV/div

VOUT

AC-COUPLED

20mV/div

40µs/div

MAX6161

LINE TRANSIENT

(CL = 0)

+0.25V

-0.25V

MAX6161/68 toc35

IOUT

5mA/div

VOUT

AC-COUPLED

100mV/div

400µs/div

MAX6165

LOAD TRANSIENT

(IOUT = ±5mA, CL = 0, VIN = 5.5V)

+5mA

-5mA

MAX6161/68 toc32

IOUT

5mA/div

VOUT

AC-COUPLED

50mV/div

400µs/div

MAX6165

LOAD TRANSIENT

(IOUT = ±5mA, CL = 1µF, VIN = 5.5V)

+5mA

-5mA

MAX6161/68 toc34

VIN

500mV/div

VOUT

AC-COUPLED

20mV/div

40µs/div

MAX6165

LINE TRANSIENT

(CL = 0)

+0.25V

-0.25V

MAX6161/68 toc36

MAX6161–MAX6168 Precision, Micropower, Low-Dropout,

High-Output-Current, SO-8 Voltage References

Maxim Integrated

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Applications Information

Input Bypassing

For the best line-transient performance, decouple the

input with a 0.1μF ceramic capacitor as shown in the

Typical Operating Circuit. Locate the capacitor as close

to IN as possible. When transient performance is less

important, no capacitor is necessary.

Output/Load Capacitance

Devices in the MAX6161 family do not require an output

capacitor for frequency stability. In applications where the

load or the supply can experience step changes, an out-

put capacitor of at least 0.1μF will reduce the amount of

overshoot (undershoot) and improve the circuit’s transient

response. Many applications do not require an external

capacitor, and the MAX6161 family can offer a significant

advantage in applications when board space is critical.

Supply Current

The quiescent supply current of the series-mode MAX6161

family is typically 100μA and is virtually independent of the

supply voltage, with only an 8μA/V (max) variation with

supply voltage. Unlike series references, shunt-mode

references operate with a series resistor connected to

the power supply. The quiescent current of a shunt-

mode reference is thus a function of the input voltage.

Additionally, shunt-mode references have to be biased

at the maximum expected load current, even if the load

current is not present at the time. In the MAX6161 family,

the load current is drawn from the input voltage only when

required, so supply current is not wasted and efficiency is

maximized at all input voltages. This improved efficiency

reduces power dissipation and extends battery life.

When the supply voltage is below the minimum specified

input voltage (as during turn-on), the devices can draw up

to 400μA beyond the nominal supply current. The input

voltage source must be capable of providing this current

to ensure reliable turn-on.

Output Voltage Hysteresis

Output voltage hysteresis is the change in the input

voltage at TA = +25°C before and after the device is cycled

over its entire operating temperature range. Hysteresis is

caused by differential package stress appearing across

the bandgap core transistors. The typical temperature

hysteresis value is 125ppm.

Turn-On Time

These devices typically turn on and settle to within 0.1%

of their final value in 50μs to 300μs, depending on the

output voltage (see electrical table of part used).

The turn-on time can increase up to 1.5ms with the

device operating at the minimum dropout voltage and the

maximum load.

PIN NAME FUNCTION

1, 3, 5, 7, 8 N.C. No Connection. Not internally connected.

2 IN Input Voltage

4 GND Ground

6 OUT Reference Output

Pin Description

Chip Information

TRANSISTOR COUNT: 117

PROCESS: BiCMOS

Typical Operating Circuit

+SUPPLY INPUT (SEE SELECTOR GUIDE)

OUT REFERENCE

OUT

1µF*

*CAPACITORS ARE OPTIONAL.

GND

MAX6161–

MAX6168

0.1µF*

MAX6161–MAX6168 Precision, Micropower, Low-Dropout,

High-Output-Current, SO-8 Voltage References

www.maximintegrated.com Maxim Integrated

│

PART OUTPUT VOLTAGE

(V)

INITIAL ACCURACY

(mV)

TEMPERATURE

COEFFICIENT

(ppm/°C)

MAX6161A 1.250 ±2 10

MAX6161B 1.250 ±4 15

MAX6168A 1.800 ±2 5

MAX6168B 1.800 ±5 10

MAX6162A 2.048 ±2 5

MAX6162B 2.048 ±5 10

MAX6166A 2.500 ±2 5

MAX6166B 2.500 ±5 10

MAX6163A 3.000 ±2 5

MAX6163B 3.000 ±5 10

MAX6164A 4.096 ±2 5

MAX6164B 4.096 ±5 10

MAX6167A 4.500 ±2 5

MAX6167B 4.500 ±5 10

MAX6165A 5.000 ±2 5

MAX6165B 5.000 ±5 10

PACKAGE

TYPE

PACKAGE

CODE

OUTLINE

NO.

LAND

PATTERN NO.

8 SO S8+2 21-0041 90-0096

+Denotes a lead(Pb)-free package/RoHS-compliant package.

*Insert the code for the desired initial accuracy and temperature

coefficient (from the Selector Guide) in the blank to complete

the part number.

Note: For leaded version, contact factory.

PART* TEMP RANGE PIN-

PACKAGE

OUTPUT

VOLTAGE (V)

MAX6161_ESA+ -40°C to +85°C 8 SO 1.250

MAX6162_ESA+ -40°C to +85°C 8 SO 2.048

MAX6163_ESA+ -40°C to +85°C 8 SO 3.000

MAX6164_ESA+ -40°C to +85°C 8 SO 4.096

MAX6165_ESA+ -40°C to +85°C 8 SO 5.000

MAX6166_ESA+ -40°C to +85°C 8 SO 2.500

MAX6167_ESA+ -40°C to +85°C 8 SO 4.500

MAX6168_ESA+ -40°C to +85°C 8 SO 1.800

Ordering Information

Selector Guide

Package Information

For the latest package outline information and land patterns (foot-

prints), go to www.maximintegrated.com/packages. Note that

a “+”, “#”, or “-” in the package code indicates RoHS status only.

Package drawings may show a different suffix character, but the

drawing pertains to the package regardless of RoHS status.

MAX6161–MAX6168 Precision, Micropower, Low-Dropout,

High-Output-Current, SO-8 Voltage References

www.maximintegrated.com Maxim Integrated

│

REVISION

NUMBER

REVISION

DATE DESCRIPTION PAGES

CHANGED

12/08

Updated part numbers in Ordering Information table

Revision History

Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses

are implied. Maxim Integrated reserves the right to change the circuitry and specications without notice at any time. The parametric values (min and max limits)

shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.

Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.

MAX6161–MAX6168 Precision, Micropower, Low-Dropout,

High-Output-Current, SO-8 Voltage References

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MAX6162AESA+ MAX6162BESA+ MAX6161AESA+T MAX6161BESA+ MAX6161BESA+T MAX6162AESA+T

MAX6162BESA+T MAX6163AESA+T MAX6163BESA+T MAX6164AESA+T MAX6164BESA+T MAX6165AESA+

MAX6165AESA+T MAX6165BESA+ MAX6165BESA+T MAX6166AESA+T MAX6166BESA+T MAX6167AESA+T

MAX6167BESA+T MAX6168AESA+ MAX6168AESA+T MAX6168BESA+ MAX6168BESA+T MAX6161AESA+

MAX6163AESA+ MAX6163BESA+ MAX6164AESA+ MAX6164BESA+ MAX6166AESA+ MAX6166BESA+

MAX6167AESA+ MAX6167BESA+ MAX6161AESA/GG8 MAX6161AESA/GG8-T