The INA125 is a low power, high accuracy instrumentation amplifier with a precision voltage reference. It provides complete bridge excitation and precision differential-input amplification on a single integrated circuit.
A single external resistor sets any gain from 4 to 10,000. The INA125 is laser-trimmed for low offset voltage (250µV), low offset drift (2µV/°C), and high common-mode rejection (100dB at G = 100). It operates on single (+2.7V to +36V) or dual (±1.35V to ±18V) supplies.
The voltage reference is externally adjustable with pin-selectable voltages of 2.5V, 5V, or 10V, allowing use with a variety of transducers. The reference voltage is accurate to ±0.5% (max) with ±35ppm/°C drift (max). Sleep mode allows shutdown and duty cycle operation to save power.
The INA125 is available in 16-pin plastic DIP and SO-16 surface-mount packages and is specified for the -40°C to +85°C industrial temperature range.
|Part number||Order||Number of channels (#)||Vs (Min) (V)||Vs (Max) (V)||CMRR (Min) (dB)||Input offset (+/-) (Max) (uV)||Input offset drift (+/-) (Max) (uV/C)||Input bias current (+/-) (Max) (nA)||Noise at 1 kHz (Typ) (nV/rt (Hz))||Iq (Typ) (mA)||Bandwidth at min gain (Typ) (MHz)||Gain (Min) (V/V)||Gain (Max) (V/V)||Gain error (+/-) (Max) (%)||Operating temperature range (C)||Package Group||Package size: mm2:W x L (PKG)||Noise at 0.1 Hz-10 Hz (Typ) (uVpp)||Gain non-linearity (+/-) (Max) (%)|
||1||2.7||36||100||250||2||25||38||0.46||0.15||4||10000||1||-40 to 85||
PDIP | 16
SOIC | 16
16PDIP: 181 mm2: 9.4 x 19.3 (PDIP | 16)
16SOIC: 59 mm2: 6 x 9.9 (SOIC | 16)