LM725
Operational Amplifier
General Description
Features
The LM725/LM725A/LM725C are operational amplifiers featuring superior performance in applications where low noise,
low drift, and accurate closed-loop gain are required. With
high common mode rejection and offset null capability, it is
especially suited for low level instrumentation applications
over a wide supply voltage range.
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The LM725A has tightened electrical performance with
higher input accuracy and like the LM725, is guaranteed
over a −55˚C to +125˚C temperature range. The LM725C
has slightly relaxed specifications and has its performance
guaranteed over a 0˚C to 70˚C temperature range.
Connection Diagrams
High open loop gain 3,000,000
Low input voltage drift 0.6 µV/˚C
High common mode rejection 120 dB
Low input noise current 0.15 pA/√Hz
Low input offset current 2 nA
High input voltage range ± 14V
Wide power supply range ± 3V to ± 22V
Offset null capability
Output short circuit protection
Typical Applications
Metal Can Package
Thermocouple Amplifier
01047401
Order Number LM725H/883, LM725CH or LM725AH/883
See NS Package Number H08C
Dual-In-Line Package
01047410
01047402
Order Number LM725CN
See NS Package Number N08E
© 2004 National Semiconductor Corporation
DS010474
www.national.com
LM725 Operational Amplifier
August 2000