AU211/LM111/211/311/311B
Voltage comparator
Product data
Supersedes data of 2001 Aug 03 2003 Sep 30
INTEGRATED CIRCUITS
Philips Semiconductors Product data
AU211/LM111/211/311/311BVoltage comparator
2
2003 Sep 30
DESCRIPTION
The LM111 series are voltage comparators that have input currents
approximately a hundred times lower than devices like the µA710.
They are designed to operate over a wider range of supply voltages;
from standard ±15 V op amp supplies down to a single 3 V supply.
Their output is compatible with RTL, DTL, and TTL as well as MOS
circuits. Further, they can drive lamps or relays, switching voltages
up to 50 V at currents as high as 50mA.
Both the inputs and the outputs of the LM111 series can be isolated
from system ground, and the output can drive loads referred to
ground, the positive supply, or the negative supply. Offset balancing
and strobe capability are provided and outputs can be wire-ORed.
Although slower than the µA710 (200 ns response time versus 40 ns),
the devices are also much less prone to spurious oscillations. The
LM111 series has the same pin configuration as the µA710 series.
FEATURES
•Operates from single 3 V supply (LM311B)
•Maximum input bias current: 150 nA (LM311: 250 nA)
•Maximum of fset current: 20 nA (LM311: 50 nA)
•Differential input voltage range: ±30 V
•Power consumption: 135 mW at ±15 V
•High sensitivity: 200 V/mV
•Zero crossing detector
PIN CONFIGURATION
1
2
3
45
6
7
8
D, N Packages
GND
INPUT
INPUT
V–
V+
OUTPUT
BAL/STROBE
BALANCE
+
–
SL00062
Figure 1. Pin Configuration
APPLICATIONS
•Precision squarer
•Positive/negative peak detector
•Low voltage adjustable reference supply
•Switching power amplifier
ORDERING INFORMATION
DESCRIPTION TEMPERATURE RANGE ORDER CODE DWG #
8-Pin Plastic Small Outline Package (SO) –40 °C to +125 °C AU211D SOT96-1
8-Pin Plastic Small Outline Package (SO) –55 °C to +125 °C LM111D SOT96-1
8-Pin Plastic Dual In-Line Package (DIP) –55 °C to +125 °C LM111N SOT97-1
8-Pin Plastic Small Outline Package (SO) –25 °C to +85 °C LM211D SOT96-1
8-Pin Plastic Dual In-Line Package (DIP) –25 °C to +85 °C LM211N SOT97-1
8-Pin Plastic Small Outline Package (SO) 0 °C to +70 °C LM311D SOT96-1
8-Pin Plastic Dual In-Line Package (DIP) 0 °C to +70 °C LM311N SOT97-1
8-Pin Plastic Small Outline Package (SO) 0 °C to +70 °C LM311BD SOT96-1
8-Pin Plastic Dual In-Line Package (DIP) 0 °C to +70 °C LM311BN SOT97-1
Philips Semiconductors Product data
AU211/LM111/211/311/311BVoltage comparator
2003 Sep 30 3
EQUIVALENT SCHEMATIC
BALANCE/
STROBE BALANCE
R3
300
R1
1.3 kΩ
R4
300
R2
1.3 kΩ
Q8
R5
70
Q5 R6
1.2 kΩR7
1.2 kΩ
Q7
Q3
R8
750
Q10
R9
600
Q11 Q20
Q19
Q8
Q9 Q18
R10
4 kΩ
Q13
Q12
Q14 OUTPUT
V+
Q15
R11
130
R12
600
R13
4
Q18
V–
Q17
R15
450
R15
400
R14
2 kΩ
R17
60
Q22
R18
200
Q4
Q2
Q23
R19
250
Q2
D1
5 V D2
5 V
Q1
INPUTS
SL00063
Figure 2. Equivalent Schematic
ABSOLUTE MAXIMUM RATINGS
SYMBOL PARAMETER RATING UNIT
VSTotal supply voltage 36 V
Output to negative supply voltage LM111/LM211 50 V
LM311/LM311B 40 V
Ground to negative supply voltage 30 V
Differential input voltage ±30 V
VIN Input voltage 1±15 V
PD MAX Maximum power dissipation, Tamb = 25 °C (still-air)
2
N package 1190 mW
D package 780 mW
IOutput short-circuit duration 10 sec
Tamb Operating ambient temperature range AU211 –40 to +125 °C
LM111 –55 to +125 °C
LM211 –25 to +85 °C
LM311/LM311B 0 to +70 °C
Tstg Storage temperature range –65 to +150 °C
Tsld Lead soldering temperature (10 sec max) 230 °C
NOTES:
1. This rating applies for ±15 V supplies. The positive input voltage limit is 30 V above the negative supply. The negative input voltage limit is
equal to the negative supply voltage or 30 V below the positive supply, whichever is less.
2. Derate above 25 °C, at the following rates:
N package at 9.5 mW/°C
D package at 6.2 m/W°C
Philips Semiconductors Product data
AU211/LM111/211/311/311BVoltage comparator
2003 Sep 30 4
DC ELECTRICAL CHARACTERISTICS1, 2, 3, 6
Over temperature range unless otherwise specified.
SYMBOL PARAMETER TEST CONDITIONS AU211
LM111/LM211 LM311 LM311B UNIT
Min Typ Max Min Typ Max Min Typ Max
VOS Input offset voltage3Tamb = 25 °C;
RS ≤50 kΩ0.7 3.0 2.0 7.5 2.0 7.5 mV
IOS Input offset current3Tamb = 25 °C 4.0 10 6.0 50 6 25 nA
IBIAS Input bias current Tamb = 25 °C 60 100 100 250 100 200 nA
AVV oltage gain Tamb = 25 °C 200 200 200 V/mV
Response time4Tamb = 25 °C 200 200 500 ns
VSAT Saturation voltage
LM111/211 VIN ≤–5mV;
IOUT = 50 mA
LM311/B VIN ≤–10 mV;
IOUT = 50 mA
Tamb = 25 °C
0.75 1.5 0.75 1.5 0.75 1.5 V
IBAL/STR Strobe on current Tamb = 25 °C 3.0 3.0 3.0 mA
ILEAKAGE Output leakage current6
LM111/211 VIN ≥5 mV;
VOUT = 35 V
LM311/B VIN ≥ 10 mV;
VOUT = 35 V
Tamb = 25 °C,
ISTROBE = 3 mA
(V– = VGND = –5 V)
0.2 10 0.2 50 0.2 50 nA
VOS Input offset voltage3RS ≤ 50 kΩ4.0 10 10 mV
IOS Input offset current320 70 50 nA
IBIAS Input bias current 150 300 250 nA
VIN Input voltage range V = ±15 V (Pin 7 may
go to 5 V) –14.5 13.8
to
–14.7 13.0 –14.5 13.8
to
–14.7 13.0 V–
+0.5 V+
–1.5 V
VOL Saturation voltage6
V+ ≥4.5 V, V– = 0 V
LM111/211 VIN ≤ –6 mV;
ISINK ≤ 8 mA
LM311/B VIN ≤ –10 mV;
ISINK ≤ 8 mA
0.23 0.4 0.23 0.4 0.23 0.4 V
IOH Output leakage current VIN ≥ 5 mV;
VOUT = 35 V 0.1 0.5 µA
ICC Positive supply current Tamb = 25 °C 5.1 6.0 5.1 7.5 1.6 3.5 mA
IEE Negative supply voltage Tamb = 25 °C 4.1 5.0 4.1 5.0 mA
NOTES:
1. This rating applies for ±15 V supplies. The positive input voltage limit is 30 V above the negative supply. The negative input voltage limit is
equal to the negative supply voltage or 30 V below the positive supply, whichever is less.
2. These specifications apply for VS = ±15 V and 0 °C < Tamb < 70 °C unless otherwise specified. With the LM211, however, all temperature
specifications are limited to –25 °C ≤Tamb ≤+85 °C, for the AU211 is limited to –40 °C < Tamb < +125 °C, and for the LM111 is limited to
–55 °C < Tamb < +125 °C. The offset voltage, offset current, and bias current specifications apply for any supply voltage from a single 5 V
supply up to ±15 V supplies.
3. The offset voltages and offset currents given are the maximum values required to drive the output within a volt of either supply with 1 mA
load. Thus, these parameters define an error band and take into account the worst case effects of voltage gain and input impedance.
4. The response time specified is for a 100 mV input step with 5 mV over-drive.
5. Do not short the strobe pin to ground; it should be current driven at 3 mA to 5 mA.
6. LM311B, all parameters are at V+ = 3 V ±10%; V– = GND = 0 V.
Philips Semiconductors Product data
AU211/LM111/211/311/311BVoltage comparator
2003 Sep 30 5
TYPICAL APPLICATIONS
INPUT
R1
3 kΩ
BAL R2
3 kΩ
V+ = 5 V
TO
MOS
LOGIC
R3
10 kΩ
V– = 10V
568
7
1
4
3
2
INPUT +
–
LM311
+
–
LM311
V+ 5 V
R3
2 kΩ
TTL
OUTPUT
87
3
2
4
1
R1
4.5 kΩ
R2
1 kΩ
MAGNETIC
PICKUP
+
–
LM311
V+ = 5 V
TO TTL
OUTPUT
2
3
87
1
4
R4
82 kΩ
R2
47 kΩ
C1
R1
240 kΩ
R3
82 kΩR5
1 kΩ
Zero Detector
Driving MOS Logic Detector for Magnetic
Transducer TTL Interface with
High Level Logic
* Values shown are for a 0 to 30 V logic swing and a 15 V threshold.
** May be added to control speed and reduce susceptibility to noise spikes.
SL00064
Figure 3. Typical Applications
Philips Semiconductors Product data
AU211/LM111/211/311/311BVoltage comparator
2003 Sep 30 6
DIP8: plastic dual in-line package; 8 leads (300 mil) SOT97-1
Philips Semiconductors Product data
AU211/LM111/211/311/311BVoltage comparator
2003 Sep 30 7
SO8: plastic small outline package; 8 leads; body width 3.9 mm SOT96-1
Philips Semiconductors Product data
AU211/LM111/211/311/311BVoltage comparator
2003 Sep 30 8
REVISION HISTORY
Rev Date Description
_3 20030930 Product data (9397 750 12106). ECN 853-0927 30378 of 26 September 2003.
Replaces LM111_211_311_31 1B_2 (9397 750 09216) of 2001 Aug 03.
Modifications:
•Add Type number AU211.
•DC electrical characteristics, Note 2, on page 4: add “for the AU211 is limited to –40 °C < Tamb < +125 °C”.
_2 20010803 Product data (9397 750 09216). ECN 853-0927 26834 of 03 August 2001. Supersedes data of 1994 Aug 31.
Definitions
Short-form specification — The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information see
the relevant data sheet or data handbook.
Limiting values definition — Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 60134). Stress above one or more of the limiting
values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given
in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information — Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors make no
representation or warranty that such applications will be suitable for the specified use without further testing or modification.
Disclaimers
Life support — These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be
expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree
to fully indemnify Philips Semiconductors for any damages resulting from such application.
Right to make changes — Philips Semiconductors reserves the right to make changes in the products—including circuits, standard cells, and/or software—described
or contained herein in order to improve design and/or performance. When the product is in full production (status ‘Production’), relevant changes will be communicated
via a Customer Product/Process Change Notification (CPCN). Philips Semiconductors assumes no responsibility or liability for the use of any of these products, conveys
no license or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent,
copyright, or mask work right infringement, unless otherwise specified.
Contact information
For additional information please visit
http://www.semiconductors.philips.com. Fax: +31 40 27 24825
For sales offices addresses send e-mail to:
sales.addresses@www.semiconductors.philips.com.
Koninklijke Philips Electronics N.V. 2003
All rights reserved. Printed in U.S.A.
Date of release: 09-03
Document order number: 9397 750 12106
Data sheet status[1]
Objective data
Preliminary data
Product data
Product
status[2] [3]
Development
Qualification
Production
Definitions
This data sheet contains data from the objective specification for product development.
Philips Semiconductors reserves the right to change the specification in any manner without notice.
This data sheet contains data from the preliminary specification. Supplementary data will be published
at a later date. Philips Semiconductors reserves the right to change the specification without notice, in
order to improve the design and supply the best possible product.
This data sheet contains data from the product specification. Philips Semiconductors reserves the
right to make changes at any time in order to improve the design, manufacturing and supply. Relevant
changes will be communicated via a Customer Product/Process Change Notification (CPCN).
Data sheet status
[1] Please consult the most recently issued data sheet before initiating or completing a design.
[2] The product status of the device(s) described in this data sheet may have changed since this data sheet was published. The latest information is available on the Internet at URL
http://www.semiconductors.philips.com.
[3] For data sheets describing multiple type numbers, the highest-level product status determines the data sheet status.
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I
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