INA128-HT,pdf (Precision Low Power Instrumentation Amplifier

The INA128 and INA129 are low power, general purpose instrumentation amplifiers offering excellent accuracy.
The versatile three operational amplifier design and small size make them ideal for a wide range of applications.
Current-feedback input circuitry provides wide bandwidth even at high gain.
A single external resistor sets any gain from 1 to 10,000. The INA128 provides an industry-standard gain
equation; the INA129 gain equation is compatible with the AD620.
The INA128/INA129 is laser trimmed for very low offset voltage (50 mV) and high common-mode rejection (93 dB
at G ≥ 100). It operates with power supplies as low as ±2.25 V, and quiescent current of 2 mA - typically. Internal
input protection can withstand up to ±40 V without damage.
The INA129 is available in 8-pin ceramic DIP and 8-pin ceramic surface-mount packages, specified for the –55°C
to 210°C temperature range. The INA128 is available in an 8-pin SO-8 surface-mount package, specified for the
–55°C to 175°C temperature range.

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