LH0042C Datasheet PDF - National Semiconductor
| Part Number | LH0042C | |
| Description | Low Cost FET Op Amp | |
| Manufacturers | National Semiconductor | |
| Logo |  |
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February 1995
LH0042
Low Cost FET Op Amp
General Description
The LH0042 is a FET input operational amplifier with very
high input impedance and low input currents with no com-
promise in noise common mode rejection ratio open loop
gain or slew rate The LH0042 is internally compensated
and is free of latch-up
The LH0042 is specified for operation over the b55 C to
a125 C military temperature range The LH0042C is speci-
fied for operation over the b25 C to a85 C temperature
range
The LH0042 op amp is intended to fulfill a wide variety of
applications for process control medical instrumentation
and other systems requiring very low input currents The
LH0042 provides low cost high performance for such appli-
cations as electrometer and photocell amplification pico-
ammeters and high input impedance buffers
Features
Y High open loop gain 100 dB typ
Y Internal compensation
Y Pin compatible with standard IC op amps
(TO-99 package)
Connection Diagram
Metal Can Package
Top View
TL K 5557 – 3
Order Number LH0042H-MIL LH0042H or LH0042CH
See NS Package Number H08D
C1995 National Semiconductor Corporation TL K 5557
RRD-B30M115 Printed in U S A
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AC Electrical Characteristics for all amplifiers (TA e 25 C VS e g15V) (Continued)
Limits
Parameter
Conditions
LH0042
LH0042C
Units
Min Typ Max Min Typ Max
Input Noise Voltage RS e 10 kX fo e 10 Hz
150
150 nV SHz
RS e 10 kX fo e 100 Hz
55
55 nV SHz
RS e 10 kX fo e 1 kHz
35
35 nV SHz
RS e 10 kX fo e 10 kHz
30
30 nV SHz
BW e 10 Hz to 10kHz RS e 10 kX
12
12 mVrms
Note 1 For supply voltages less than g15V the absolute maximum input voltage is equal to the supply voltage
Note 2 Rating applies for minimum source resistance of 10 kX for source resistances less than 10 kX maximum differential input voltage is g5V
Note 3 Unless otherwise specified these specifications apply for g5V s VS s g20V and b55 C s TA s a125 C for the LH0042 and b25 C s TA s a85 C
for the LH0042C Typical values are given for TA e 25 C
Note 4 Input currents are a strong function of temperature Due to high speed testing they are specified at a junction temperature Tj e 25 C Self heating will
cause an increase in current in manual tests 25 C spec is guaranteed by testing at 125 C
Note 5 See RETS0042X for the LH0042H military specifications
Auxiliary Circuits (Shown for TO-99 pin out)
Offset Null
Protecting Inputs from g150V Transients
TL K 5557 – 5
Note All diodes are ultra low leakage
Boosting Output Drive to g100 mA
TL K 5557 – 6
TL K 5557 – 7
5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for LH0042C electronic component. |
| Information | Total 12 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ LH0042C.PDF Datasheet ] | |
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| Part Number | Description | MFRS |
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| LH0042C | The function is Low Cost FET Op Amp. National Semiconductor | |
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