INA120 pdf datasheet (Precisio

The INA120 is a precision instrumentation amplifier
ideal for accurate signal acquisition. It combines precision,
protected-input operational amplifiers, lasertrimmed
gain-setting resistors, and a high commonmode
rejection difference amplifier on a single chip.
Simple pin-strapped connections set precise gains of 1,
10, 100 or 1000. External resistors can be used to set
any gain from one to 5000. Gains can be digitally
selected with an external multiplexer. Gain-sense connections
on the INA120 maintain accuracy when using
multiplexer or gain-switching circuitry. Low power
dissipation and careful on-chip thermal management
reduce warm-up drift and assure excellent long-term
stability.
The INA120 is available in both plastic and ceramic
18-pin DIP packages, specified for the industrial temperature
range.