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LH2111/LH2311 Dual Voltage Comparators
LH2111/LH2311
August 1992
LH2111/LH2311 Dual Voltage Comparators
General Description
The LH2111 series of dual voltage comparators are two LM111 type comparators in a single hermetic package. Featuring all the same performance characteristics of the single, these duals offer in addition closer thermal tracking, lower weight, reduced insertion cost and smaller size than two singles. For additional information see the LM111 data sheet and National's Linear Application Handbook. The LH2111 is specified for operation over the -55C to +125C military temperature range. The LH2311 is specified for operation over the 0C to 70C temperature range.
Features
n n n n n Wide operating supply range 15V to a single +5V Low input currents 6 nA High sensitivity 10 V Wide differential input range 30V High output drive 50 mA, 50V
Connection Diagram
DS010116-1
Order Number LH2111D, LH2111D/883 or LH2311D See NS Package Number D16C
(c) 1997 National Semiconductor Corporation
DS010116
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PrintDate=1997/05/02 PrintTime=12:26:32 6564 ds010116 Rev. No. 1
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Absolute Maximum Ratings
TARGET FOR FNXref NS0050*)
(Note *NO
If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Total Supply Voltage (V+ - V-) Output to Negative Supply Voltage (VOUT - V-) Ground to Negative Supply Voltage (GND - V-) Differential Input Voltage 36V 50V 30V
Input Voltage (Note 1) Power Dissipation (Note 2) Output Short Circuit Duration Operating Temperature Range LH2111 LH2311 Storage Temperature Range Lead Temperature (Soldering, 10 sec)
15V
500 mW 10 sec -55C to +125C 0C to +70C -65C to +150C 300C
30V
Electrical Characteristics
Each Side Parameter Input Offset Voltage (Note 4) Input Offset Current (Note 4) Input Bias Current Voltage Gain Response Time (Note 5) Saturation Voltage Strobe On Current Output Leakage Current Input Offset Voltage (Note 4) Input Offset Current (Note 4) Input Bias Current Input Voltage Range Saturation Voltage Positive Supply Current Negative Supply Current
(Note 3) Conditions LH2111 Limits LH2311 7.5 50 250 200 200 1.5 3.0 50 10 70 300 mV Max nA Max nA Max V/mV Typ ns Typ V Max mA Typ nA Max mV Max nA Max nA Max V Typ V Max mA Max mA Max 3.0 10 100 200 200 1.5 3.0 10 4.0 20 150 Units
TA = 25C, RS 50k TA = 25C TA = 25C TA = 25C TA = 25C VIN -5 mV, IOUT = 50 mA TA = 25C TA = 25C VIN 5 mV, VOUT = 35V TA = 25C RS 50k
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V+ 4.5V, V- = 0 VIN -5 mV, ISINK 8 mA TA = 25C TA = 25C 0.4 6.0 5.0
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0.4 7.5 5.0
Note 1: This rating applies for 15V supplies. The positive input voltage limit is 30V above the negative supply. The negative input voltage limit is equal to the negative supply voltage or 30V below the positive supply, whichever is less. Note 2: The maximum junction temperature is 150C. For operating at elevated temperatures, devices in the flat package, the derating is based on a thermal resistance of 185C/W when mounted on a 1/16-inch-thick epoxy glass board with 0.03-inch-wide, 2 ounce copper conductor. The thermal resistance of the dual-in-line package is 100C/W, junction to ambient. Note 3: These specifications apply for VS = 15V and -55C TA 125C for the LH2111, and 0C TA 70C for the LH2311, unless otherwise stated. The offset voltage, offset current and bias current specifications apply for any supply voltage from a single 5V supply up to 15V supplies. For the LH2311, VIN = 10 mV. Note 4: The offset voltages and offset currents given are the maximum values required to drive the output within a volt of either supply with a 1 mA load. Thus, these parameters define an error band and take into account the worst case effects of voltage gain and input impedance. Note 5: The response time specified is for a 100 mV input step with 5 mV overdrive. Note 6: RETS2111X for the LH2111D and LH2111F military specifications.
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PrintDate=1997/05/02 PrintTime=12:26:34 6564 ds010116 Rev. No. 1
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Auxiliary Circuits
Offset Balancing Strobing Increasing Input Stage Current*
DS010116-4
*Increases typical common mode slew
from 7.0 V/s to 18 V/s
DS010116-2
DS010116-3
Driving Ground-Referred Load
Using Clamp Diodes to Improve Responses
DS010116-6 DS010116-5
Comparator and Solenoid Driver
Strobing off Both Input* and Output Stages
DS010116-7
DS010116-8
*Typical input current is 50 pA with inputs strobed off
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PrintDate=1997/05/02 PrintTime=12:26:35 6564 ds010116 Rev. No. 1
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Auxiliary Circuits
(Continued) TTL Interface with High Level Logic
Book Extract End
DS010116-9
*Values shown are for a 0V to 30V logic swing and a 15V threshold. May be added to control speed and reduce susceptibility to noise spikes.
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PrintDate=1997/05/02 PrintTime=12:26:35 6564 ds010116 Rev. No. 1
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THIS PAGE IS IGNORED IN THE DATABOOK
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PrintDate=1997/05/02 PrintTime=12:26:35 6564 ds010116 Rev. No. 1
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LH2111/LH2311 Dual Voltage Comparators
Physical Dimensions
inches (millimeters)
16-Lead Hermetic Dual-In-Line Package (D) Order Number LH2111D, LH2111D/883 or LH2311D NS Package Number D16C
LIFE SUPPORT POLICY NATIONAL'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 2. A critical component in any component of a life support 1. Life support devices or systems are devices or sysdevice or system whose failure to perform can be reatems which, (a) are intended for surgical implant into sonably expected to cause the failure of the life support the body, or (b) support or sustain life, and whose faildevice or system, or to affect its safety or effectiveness. ure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user.
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National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.
PrintDate=1997/05/02 PrintTime=12:26:36 6564 ds010116 Rev. No. 1
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