Precision, low-power, indirect current feedback instrumentation amplifier

The INA630 is a high-precision instrumentation

amplifier that offers low power consumption and operates over a wide single-supply

or dual-supply range. The INA630 is optimized for small differential voltages

(±125mV maximum) while providing excellent common-mode suppression (126dB CMRR). The

INA630 offers flexible gain setting with an external resistor divider of minimum G =

20V/V.

The INA630 is based on an indirect current

feedback architecture that offers low gain error

and non-linearity. Due to the architecture the

reference pin impedance does not degrade the CMRR

performance. The device enables wider input and

output voltage range compared to traditional

instrumentation amplifiers. The device has high

precision as a result of super-beta input

transistors, which provide low input offset

voltage, offset voltage drift, low bias current

and current noise.