For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
MAX6033
High-Precision, Low-Dropout SOT23 Series
Voltage Reference
General Description
The MAX6033 ultra-high-precision series voltage refer-
ence features a low 7ppm/°C (max) temperature coeffi-
cient and a low dropout voltage (200mV, max). Low
temperature drift and low noise make the MAX6033
ideal for use with high-resolution ADCs or DACs.
This device uses bandgap technology for low-noise per-
formance and excellent accuracy. Laser-trimmed, high-
stability, thin-film resistors, and postpackage trimming
guarantee excellent initial accuracy (±0.04%, max). The
MAX6033 consumes only 40µA of supply current and
sources up to 15mA. Series mode references save sys-
tem power and use minimal external components com-
pared to two-terminal shunt references.
The MAX6033 is available in the miniature 6-pin SOT23
package and is offered over the automotive tempera-
ture range (-40°C to +125°C).
Applications
Precision Regulators
A/D and D/A Converters
Power Supplies
Hard-Disk Drives
High-Accuracy Industrial and Process Control
Hand-Held Instruments
Features
oTiny 6-Pin SOT23 Package
oUltra-Low Temperature Drift: 7ppm/°C (max)
o±0.04% Initial Accuracy
oStable with Capacitive Loads
oLow 16µVP-P Noise (0.1Hz to 10Hz) (2.5V Output)
o15mA Output Source Current
oLow 200mV Dropout Voltage
oLow 40µA Quiescent Current
oWide 2.7V to 12.6V Supply Voltage
oExcellent Load Regulation: 0.001mV/mA
Ordering Information/Selector Guide
PART OUTPUT
VOLTAGE (V)
TEMP COEFF
(ppm/°C)
INITIAL ACCURACY
(%) TOP MARK
MAX6033AAUT25-T 2.500 10 0.04 ABDF
MAX6033AAUT25#TG16 2.500 10 0.04 #ACNC
MAX6033BAUT25-T 2.500 15 0.20 AAXL
MAX6033BAUT25#TG16 2.500 15 0.20 #ACND
MAX6033CAUT25-T 2.500 40 0.10 AAXH
MAX6033CAUT25#TG16 2.500 40 0.10 #ACNE
MAX6033AAUT30-T 3.000 10 0.04 ABDG
MAX6033AAUT30#TG16 3.000 10 0.04 #ACNF
MAX6033BAUT30-T 3.000 15 0.20 AAXM
MAX6033BAUT30#TG16 3.000 15 0.20 #ACNG
Ordering Information/Selector Guide continued on last page.
#
Denotes a RoHS-compliant device that may include lead(Pb) that is exempt under the RoHS requirements.
T = Tape and reel.
Typical Operating Circuit appears at end of data sheet.
GND
INI.C.*
*I.C. = INTERNALLY CONNECTED: DO NOT USE
1
+
6 OUTS
5 OUTF
I.C.*
SOT23
TOP VIEW
2
34
MAX6033
Pin Configuration
19-2300; Rev 3; 3/12
MAX6033
Ultra-High-Precision SOT23 Series
Voltage Reference
2Maxim Integrated
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS—VOUT = 2.500V
(VIN = 5V, COUT = 0.1µF, IOUT = 0A, TA= TMIN to TMAX, unless otherwise specified. Typical values are at TA= +25°C.) (Note 1)
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.
IN to GND ...............................................................-0.3V to +13V
OUTF, OUTS to GND................................................-0.3V to +6V
Continuous Power Dissipation (TA= +70°C)
6-Pin SOT23 (derate 9.1mW/°C above +70°C)............727mW
Operating Temperature Range .........................-40°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Maximum Junction Temperature .....................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow)
RoHS-Compliant Packages ..........................................+245°C
Packages Containing Lead(Pb)....................................+240°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX6033A 2.4990 2.5000 2.5010
MAX6033B 2.4950 2.5000 2.5050
Output Voltage VOUT TA = +25°C
MAX6033C 2.4975 2.5000 2.5025
V
MAX6033A -0.04 +0.04
MAX6033B -0.2 +0.2
Output-Voltage Accuracy TA = +25°C
MAX6033C -0.1 +0.1
%
TA = -40
o
C to +85
o
C1.5 7
MAX6033A TA = -40
o
C to +125
o
C2.5 10
TA = -40
o
C to +85
o
C310
MAX6033B TA = -40
o
C to +125
o
C715
TA = -40
o
C to +85
o
C620
Output Voltage Temperature
Coefficient TCVOUT
MAX6033C TA = -40
o
C to +125
o
C10 40
ppm/°C
Input Voltage Range VIN Inferred from line regulation specification 2.7 12.6 V
TA = +25°C 325
Line Regulation ∆VOUT/
∆VIN 2.7V ≤ VIN ≤ 12.6V TA = -40°C to +125°C 50 µV/V
TA = +25°C 0.001 0.05
Load Regulation ∆VOUT/
∆IOUT
-100µA ≤ IOUT ≤
15mA TA = -40°C to +125°C 0.1 mV/mA
VOUT = 0.1%, IOUT = 1mA 0.02 0.2
TA = -40
o
C to +85
o
C0.3 0.4
Dropout Voltage (Note 2) VDO VOUT = 0.1%,
IOUT = 10mA TA = - 40
o
C to + 125
o
C 0.5
V
TA = +25
o
C40 60
TA = -40
o
C to +85
o
C75
Quiescent Supply Current IIN
TA = -40
o
C to +125
o
C85
µA
VOUT = 0V 90
Output Short-Circuit Current ISC VOUT = VIN -2 mA
0.1Hz ≤ f ≤ 10Hz 16 µVP-P
Output-Voltage Noise en10Hz ≤ f ≤ 1kHz 12 µVRMS
Turn-On Settling Time tON VOUT settles to ±0.01% of final value 500 µs
Temperature Hysteresis (Note 3) 150 ppm
Long-Term Stability ∆t = 1000hr 40 ppm
MAX6033
Ultra-High-Precision SOT23 Series
Voltage Reference
3
Maxim Integrated
ELECTRICAL CHARACTERISTICS—VOUT = 3.000V
(VIN = 5V, COUT = 0.1µF, IOUT = 0A, TA= TMIN to TMAX, unless otherwise specified. Typical values are at TA= +25°C.) (Note 1)
ELECTRICAL CHARACTERISTICS—VOUT = 4.096V
(VIN = 5V, COUT = 0.1µF, IOUT = 0A, TA= TMIN to TMAX, unless otherwise specified. Typical values are at TA= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX6033A 2.9988 3.0000 3.0012
MAX6033B 2.9940 3.0000 3.0060
Output Voltage VOUT TA = +25oC
MAX6033C 2.9970 3.0000 3.0030
V
MAX6033A -0.04 +0.04
MAX6033B -0.2 +0.2Output-Voltage Accuracy TA = +25oC
MAX6033C -0.1 +0.1
%
TA = -40oC to +85oC 1.5 7
MAX6033A TA = -40oC to +125oC 2.5 10
TA = -40oC to +85oC310
MAX6033B TA = -40oC to +125oC715
TA = -40oC to +85oC620
Output-Voltage Temperature
Coefficient TCVOUT
MAX6033C TA = -40oC to +125oC1040
ppm/°C
Input Voltage Range VIN Inferred from line regulation specification 3.2 12.6 V
TA = +25°C 4 30
Line Regulation ∆VOUT/
∆VIN 3.2V ≤ VIN ≤ 12.6V TA = -40°C to +125°C 60 µV/V
TA = +25°C 0.002 0.06
Load Regulation ∆VOUT/
∆IOUT
-100µA ≤ IOUT ≤
15mA TA = -40°C to +125°C 0.12 mV/mA
IOUT = 1mA 0.02 0.2
Dropout Voltage (Note 2) VDO ∆VOUT = 0.1% IOUT = 10mA 0.2 0.4 V
TA = +25°C4060
TA = -40°C to +85°C75
Quiescent Supply Current IIN
TA = -40°C to +125°C 85
µA
VOUT = 0V 90
Output Short-Circuit Current ISC VOUT = VIN -2 mA
0.1Hz ≤ f ≤ 10Hz 24 µVP-P
Output-Voltage Noise en10Hz ≤ f ≤ 1kHz 15 µVRMS
Turn-On Settling Time tON VOUT settles to ±0.01% of final value 600 µs
Temperature Hysteresis (Note 3) 150 ppm
Long-Term Stability ∆t = 1000hr 40 ppm
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX6033A 4.0943 4.0960 4.0977
MAX6033B 4.0878 4.0960 4.1042
Output Voltage VOUT TA = +25°C
MAX6033C 4.0919 4.0960 4.1001
V
MAX6033A -0.04 +0.04
MAX6033B -0.2 +0.2Output-Voltage Accuracy TA = +25°C
MAX6033C -0.1 +0.1
%
MAX6033
Ultra-High-Precision SOT23 Series
Voltage Reference
4Maxim Integrated
ELECTRICAL CHARACTERISTICS—VOUT = 4.096V (continued)
(VIN = 5V, COUT = 0.1µF, IOUT = 0A, TA= TMIN to TMAX, unless otherwise specified. Typical values are at TA= +25°C.) (Note 1)
ELECTRICAL CHARACTERISTICS—VOUT = 5.000V
(VIN = 5.5V, COUT = 0.1µF, IOUT = 0A, TA= TMIN to TMAX, unless otherwise specified. Typical values are at TA= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
TA = -40oC to +85oC 1.5 7
MAX6033A TA = -40oC to +125oC 2.5 10
TA = -40oC to +85oC310
MAX6033B TA = -40oC to +125oC715
TA = -40oC to +85oC620
Output-Voltage Temperature
Coefficient TCVOUT
MAX6033C TA = -40oC to +125oC1040
ppm/°C
Input-Voltage Range VIN Inferred from line regulation specification 4.3 12.6 V
TA = +25°C 6 30
Line Regulation ∆VOUT/
∆VIN 4.3V ≤ VIN ≤ 12.6V TA = -40oC to +125oC60
µV/V
TA = +25°C 0.002 0.08
Load Regulation ∆VOUT/
∆IOUT
-100µA ≤ IOUT ≤
15mA TA = -40oC to +125oC 0.15 mV/mA
IOUT = 1mA 0.02 0.2
Dropout Voltage (Note 2) VDO ∆VOUT = 0.1% IOUT = 10mA 0.2 0.4 V
TA = +25°C 40 60
TA = -40°C to +85°C 75Quiescent Supply Current IIN
TA = -40oC to +125oC85
µA
VOUT = 0V 90
Output Short-Circuit Current ISC VOUT = VIN -2 mA
0.1Hz ≤ f ≤ 10Hz 32 µVP-P
Output-Voltage Noise en10Hz ≤ f ≤ 1kHz 22 µVRMS
Turn-On Settling Time tON VOUT settles to ±0.01% of final value 800 µs
Temperature Hysteresis (Note 3) 150 ppm
Long-Term Stability ∆t = 1000hr 40 ppm
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX6033A 4.9980 5.000 5.0020
MAX6033B 4.9900 5.000 5.0100
Output Voltage VOUT TA = +25°C
MAX6033C 4.9950 5.000 5.0050
V
MAX6033A -0.04 +0.04
MAX6033B -0.2 +0.2Output-Voltage Accuracy TA = +25°C
MAX6033C -0.1 +0.1
%
TA = -40oC to +85oC 1.5 7
MAX6033A TA = -40oC to +125oC 2.5 10
TA = -40oC to +85oC310
MAX6033B TA = -40oC to +125oC715
TA = -40oC to +85oC620
Output-Voltage Temperature
Coefficient TCVOUT
MAX6033C TA = -40oC to +125oC1040
ppm/°C
Input Voltage Range VIN Inferred from line regulation specification 5.2 12.6 V
MAX6033
Ultra-High-Precision SOT23 Series
Voltage Reference
5
Maxim Integrated
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
TA = +25°C 7 50
Line Regulation ∆VOUT/
∆VIN 5.2V ≤ VIN ≤ 12.6V TA = -40oC to +125oC 100 µV/V
TA = +25°C 0.003 0.1
Load Regulation ∆VOUT/
∆IOUT
-100µA ≤ IOUT
≤ 15mA TA = -40oC to +125oC 0.2 mV/mA
IOUT = 1mA 0.02 0.2
Dropout Voltage (Note 2) VDO ∆VOUT = 0.1% IOUT = 10mA 0.2 0.4 V
TA = +25°C 40 60
TA = -40°C to +85°C75Quiescent Supply Current IIN
TA = -40oC to +125oC85
µA
VOUT = 0V 90
Output Short-Circuit Current ISC VOUT = VIN -2 mA
0.1Hz ≤ f ≤ 10Hz 40 µVP-P
Output-Voltage Noise en10Hz ≤ f ≤ 1kHz 26 µVRMS
Turn-On Settling Time tON VOUT settles to ±0.01% of final value 1000 µs
Temperature Hysteresis (Note 3) 150 ppm
Long-Term Stability ∆t = 1000hr 40 ppm
ELECTRICAL CHARACTERISTICS—VOUT = 5.000V (continued)
(VIN = 5.5V, COUT = 0.1µF, IOUT = 0A, TA= TMIN to TMAX, unless otherwise specified. Typical values are at TA= +25°C.) (Note 1)
Typical Operating Characteristics
(VIN = 5V, COUT = 0.1µF, IOUT = 0A, TA= +25°C, unless otherwise specified.) (Note 4)
Note 1: MAX6033 is 100% production tested at TA= +25°C and is guaranteed by design for TA= TMIN to TMAX as specified.
Note 2: Dropout Voltage is the minimum input voltage at which VOUT changes ≤0.1% from VOUT at VIN = 5V (VIN = 5.5V for
VOUT = 5V).
Note 3: Temperature Hysteresis is defined as the change in +25°C output voltage before and after cycling the device
from TMAX to TMIN.
OUTPUT VOLTAGE vs.
TEMPERATURE (VOUT = 2.5V)
MAX6033 toc01
TEMPERATURE (°C)
OUTPUT VOLTAGE (V)
1109565 80-10 5 20 35 50-25
2.4982
2.4984
2.4986
2.4988
2.4990
2.4992
2.4994
2.4996
2.4998
2.5000
2.5002
2.5004
2.5006
2.5008
2.5010
2.4980
-40 125
3 TYPICAL UNITS
OUTPUT VOLTAGE vs.
TEMPERATURE (VOUT = 5V)
MAX6033 toc02
TEMPERATURE (°C)
OUTPUT VOLTAGE (V)
1109565 80-10 5 20 35 50-25
4.9982
4.9984
4.9986
4.9988
4.9990
4.9992
4.9994
4.9996
4.9998
5.0000
5.0002
5.0004
5.0006
5.0008
5.0010
4.9980
-40 125
3 TYPICAL UNITS
LOAD REGULATION
(VOUT = 2.5V)
MAX6033 toc03
OUTPUT CURRENT (mA)
OUTPUT VOLTAGE (V)
181612 142 4 6 8 100
2.4995
2.5000
2.5005
2.5010
2.5015
2.5020
2.5025
2.5030
2.5035
2.5040
2.4990
-2 20
TA = +85°C
TA = +25°C
TA = -40°C
TA = +125°C
MAX6033
Ultra-High-Precision SOT23 Series
Voltage Reference
6Maxim Integrated
Typical Operating Characteristics (continued)
(VIN = 5V, COUT = 0.1µF, IOUT = 0A, TA= +25°C, unless otherwise specified.) (Note 4)
LOAD REGULATION
(VOUT = 5V)
MAX6033 toc04
OUTPUT CURRENT (mA)
OUTPUT VOLTAGE (V)
18160 2 4 8 10 12614
4.999
5.000
5.001
5.002
5.003
5.004
5.005
5.006
4.998
-2 20
TA = +85°C
TA = +25°C
TA = -40°C
TA = +125°C
DROPOUT VOLTAGE vs. OUTPUT CURRENT
(VOUT = 2.5V)
MAX6033 toc05
OUTPUT CURRENT (mA)
DROPOUT VOLTAGE (mV)
18161412108642
100
200
300
400
500
600
700
0
020
TA = +85°C
TA = +125°C
TA = +25°C
TA = -40°C
DROPOUT VOLTAGE vs. OUTPUT CURRENT
(VOUT = 5V)
MAX6033 toc06
OUTPUT CURRENT (mA)
DROPOUT VOLTAGE (mV)
181612 144 6 8 102
50
100
150
200
250
300
350
400
450
500
550
600
0
020
TA = +85°C
TA = +125°C
TA = +25°C
TA = -40°C
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (VOUT = 2.5V)
FREQUENCY (kHz)
0.001 1 10 1000.01 0.1 1000
PSRR (dB)
0
-100
-90
-80
-70
-60
-50
-40
-10
-20
-30
MAX6033 toc07
-100
-70
-80
-90
-60
-50
-40
-30
-20
-10
0
0.001 0.10.01 1 10 100 1000
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (VOUT = 5V)
MAX6033 toc08
FREQUENCY (kHz)
PSRR (dB)
SUPPLY CURRENT vs. INPUT VOLTAGE
(VOUT = 2.5V)
MAX6033 toc09
INPUT VOLTAGE (V)
SUPPLY CURRENT (µA)
12119 103 4 5 6 7 81 2
15
30
45
60
75
90
105
120
135
150
0
013
TA = +85°C
TA = +125°C
TA = +25°CTA = -40°C
SUPPLY CURRENT vs. INPUT VOLTAGE
(VOUT = 5V)
MAX6033 toc10
INPUT VOLTAGE (V)
SUPPLY CURRENT (µA)
12119103 4 5 6 7 81 2
20
40
60
80
100
120
140
160
180
200
220
0
013
TA = +85°C
TA = +125°C
TA = +25°C
TA = -40°C
0.1Hz TO 10Hz OUTPUT NOISE
(VOUT = 2.5V)
MAX6033 toc11
VOUT
4µV/div
1s/div
0.1Hz TO 10Hz OUTPUT NOISE
(VOUT = 5V)
MAX6033 toc12
VOUT
10µV/div
1s/div
MAX6033
Ultra-High-Precision SOT23 Series
Voltage Reference
7
Maxim Integrated
LOAD TRANSIENT
(VOUT = 2.5V)
MAX6033 toc14
2.5V
-100µA
1mA
1ms/div
IOUT
1mA/div
VOUT
50mV/div
AC-COUPLED
VIN = 5V
COUT = 0.1µF
LOAD TRANSIENT
(VOUT = 2.5V)
MAX6033 toc15
2.5V
0
10mA
IOUT
10mA/div
VOUT
50mV/div
AC-COUPLED
400µs/div
VIN = 5V
COUT = 10µF
LOAD TRANSIENT
(VOUT = 2.5V)
MAX6033 toc16
2.5V
-100µA
1mA
IOUT
1mA/div
VOUT
20mV/div
AC-COUPLED
1ms/div
VIN = 5V
COUT = 10µF
LINE TRANSIENT
(VOUT = 2.5V)
MAX6033 toc17
5.5V
2.5V
4.5V
VOUT
10mV/div
AC-COUPLED
VIN
500mV/div
AC-COUPLED
400µs/div
COUT = 0.1µF
LINE TRANSIENT
(VOUT = 5V)
MAX6033 toc18
6.5V
5V
5.5V
VOUT
10mV/div
AC-COUPLED
VIN
500mV/div
AC-COUPLED
1ms/div
COUT = 0.1µF
Typical Operating Characteristics (continued)
(VIN = 5V, COUT = 0.1µF, IOUT = 0A, TA= +25°C, unless otherwise specified.) (Note 4)
Typical Operating Characteristics (continued)
(VIN = 5V, COUT = 0.1µF, IOUT = 0A, TA= +25°C, unless otherwise specified.) (Note 4)
TURN-ON TRANSIENT
(VOUT = 2.5V)
MAX6033 toc19
5V
0
2.5V VOUT
1V/div
VIN
2V/div
100µs/div
0
COUT = 0.1µF
TURN-ON TRANSIENT
(VOUT = 5V)
MAX6033 toc20
5.5V
0
5V
VOUT
2V/div
VIN
2V/div
400µs/div
COUT = 0.1µF
0
TURN-ON TRANSIENT
(VOUT = 2.5V)
MAX6033 toc21
5V
0
2.5V VOUT
1V/div
VIN
2V/div
2ms/div
COUT = 10µF
0
TURN-ON TRANSIENT
(VOUT = 5V)
MAX6033 toc22
5.5V
0
5V
VOUT
2V/div
VIN
2V/div
2ms/div
COUT = 10µF
0
MAX6033
Ultra-High-Precision SOT23 Series
Voltage Reference
8Maxim Integrated
Note 4: Many of the MAX6033
Typical Operating Characteristics
are similar. The extremes of these characteristics are found in the
MAX6033 (2.5V output) and the MAX6033 (5V output). The
Typical Operating Characteristics
of the remainder of the
MAX6033 family typically lie between these two extremes and can be estimated based on their output voltages.
LONG-TERM STABILITY vs. TIME
(VOUT = 2.5V)
MAX6033 toc23
TIME (HOURS)
VOUT (V)
900800600 700200 300 400 500100
2.49995
2.50000
2.50005
2.50010
2.50015
2.50020
2.50025
2.50030
2.50035
2.50040
2.49990
0 1000
5 TYPICAL UNITS
LONG-TERM STABILITY vs. TIME
(VOUT = 5V)
MAX6033 toc24
TIME (HOURS)
VOUT (V)
900800600 700200 300 400 500100
5.0000
5.0001
5.0002
5.0003
5.0004
5.0005
5.0006
5.0007
5.0008
5.0009
4.9999
0 1000
5 TYPICAL UNITS
Applications Information
Bypassing/Load Capacitance
For the best line-transient performance, decouple the
input with a 0.1µF ceramic capacitor as shown in the
Typical Operating Circuit
. Place the capacitor as close
to IN as possible. When transient performance is less
important, no capacitor is necessary.
The MAX6033 family requires a minimum output capac-
itance of 0.1µF for stability and is stable with capacitive
loads (including the bypass capacitance) of up to
100µF. In applications where the load or the supply can
experience step changes, a larger output capacitor
reduces the amount of overshoot (undershoot) and
improves the circuit’s transient response. Place output
capacitors as close to the device as possible.
Supply Current
The quiescent supply current of the MAX6033 series
reference is typically 40µA and is virtually independent
of the supply voltage. In the MAX6033 family, the load
current is drawn from the input only when required, so
supply current is not wasted and efficiency is maxi-
mized at all input voltages. This improved efficiency
reduces power dissipation and extends battery life.
When the supply voltage is below the minimum-speci-
fied input voltage (as during turn-on), the devices can
draw up to 150µA 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 output
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 150ppm.
Turn-On Time
These devices typically turn on and settle to within
0.01% of their final value in >1µs. The turn-on time can
increase up to 2ms with the device operating at the
minimum dropout voltage and the maximum load.
Precision Current Source
Figure 1 shows a typical circuit providing a precision
current source. The OUTF output provides the bias cur-
rent for the bipolar transistor. OUTS senses the voltage
across the resistor and adjusts the current sourced by
OUTF accordingly.
High-Resolution DAC and
Reference from Single Supply
Figure 2 shows a typical circuit providing both the
power supply and reference for a high-resolution DAC.
A MAX6033 with 2.5V output provides the reference
voltage for the DAC.
Pin Description
MAX6033
Ultra-High-Precision SOT23 Series
Voltage Reference
9
Maxim Integrated
PIN NAME FUNCTION
1, 3 I.C. Internally Connected. Do not
connect externally.
2 GND Ground
4 IN Positive Power-Supply Input
5 OUTF
Voltage Reference Force Output.
Short OUTF to OUTS as close to
the device as possible. Bypass
OUTF with 0.1µF (min) capacitor
to GND.
6 OUTS Voltage Reference Sense
OUTS
OUTF
MAX6033
IN
GND
ISOURCE
Figure 1. Precision Current Source
OUT OUTREF
3V SUPPLY
IN
GND
ANALOG
OUTPUT
MAX6033
VDD
GND
MAX5143
DAC
Figure 2. 14-Bit High-Resolution DAC and Positive Reference
from a Single 3V Supply
MAX6033
Ultra-High-Precision SOT23 Series
Voltage Reference
10 Maxim Integrated
Chip Information
PROCESS: BiCMOS
Ordering Information/Selector Guide (continued)
PART OUTPUT
VOLTAGE (V)
TEMP COEFF
(ppm/°C)
INITIAL ACCURACY
(%) TOP MARK
MAX6033CAUT30-T 3.000 40 0.10 AAXI
MAX6033CAUT30#TG16 3.000 40 0.10 #ACNH
MAX6033AAUT41-T 4.096 10 0.04 ABDH
MAX6033AAUT41#TG16 4.096 10 0.04 #ACNI
MAX6033BAUT41-T 4.096 15 0.20 AAXN
MAX6033BAUT41#TG16 4.096 15 0.20 #ACLG
MAX6033CAUT41-T 4.096 40 0.10 AAXJ
MAX6033CAUT41#TG16 4.096 40 0.10 #ACNJ
MAX6033AAUT50-T 5.000 10 0.04 ABDI
MAX6033AAUT50#TG16 5.000 10 0.04 #ACNK
MAX6033BAUT50-T 5.000 15 0.20 AAXO
MAX6033BAUT50#TG16 5.000 15 0.20 #ACNL
MAX6033CAUT50-T 5.000 40 0.10 AAXK
MAX6033CAUT50#TG16 5.000 40 0.10 #ACNM
#
Denotes a RoHS-compliant device that may include lead(Pb) that is exempt under the RoHS requirements.
T = Tape and reel.
OUTS
SUPPLY INPUT
IN
GND
*INPUT CAPACITOR IS OPTIONAL
REFERENCE OUTPUT
0.1µF (min)
0.1µF*
OUTF
MAX6033
Typical Operating Circuit
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.
PACKAGE
TYPE
PACKAGE
CODE OUTLINE NO. LAND
PATTERN NO.
SOT23-6 U6F-6 21-0058 90-0175
RoHS SOT23-6 UGFH-6 ——
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 specifications 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 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000 ________________________________
11
© 2012 Maxim Integrated Products, Inc. Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
MAX6033
Ultra-High-Precision SOT23 Series
Voltage Reference
Revision History
REVISION
NUMBER
REVISION
DATE DESCRIPTION PAGES
CHANGED
2 6/03 Various changes —
3 3/12 Replaced Ordering Information table/Selector Guide, updated packaging information 1, 10
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Maxim Integrated:
MAX6033AAUT25#TG16 MAX6033AAUT50#TG16 MAX6033AAUT30#TG16 MAX6033AAUT41#TG16
MAX6033BAUT30#TG16 MAX6033CAUT25#TG16 MAX6033CAUT30#TG16 MAX6033CAUT41#TG16
MAX6033CAUT50#TG16 MAX6033BAUT25#TG16 MAX6033BAUT50#TG16 MAX6033BAUT41#TG16
MAX6033AAUT25-T MAX6033AAUT30-T MAX6033AAUT41-T MAX6033AAUT50-T MAX6033BAUT25-T