Datasheet Texas Instruments LF442AMH/NOPB — 数据表

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SNOSD59 – JUNE 2017 LF442-MIL Dual Low Power JFET Input Operational Amplifier
1 Features 3 Description The LF442-MIL dual low power operational amplifiers
provide many of the same AC characteristics as the
industry standard LM1458 while greatly improving the
DC characteristics of the LM1458. The amplifiers
have the same bandwidth, slew rate, and gain (10 kО©
load) as the LM1458 and only draw one tenth the
supply current of the LM1458. In addition the well
matched high voltage JFET input devices of the
LF442-MIL reduce the input bias and offset currents
by a factor of 10,000 over the LM1458. A combination
of careful layout design and internal trimming ensures
very low input offset voltage and voltage drift. The
LF442-MIL also has a very low equivalent input noise
voltage for a low power amplifier. 1 1/10 Supply Current of a LM1458: 400 ОјA (Max)
Low Input Bias Current: 50 pA (Max)
Low Input Offset Voltage: 1 mV (Max) …