0
Number of channels |
1 |
Vs (max) (V) |
36 |
Vs (min) (V) |
4 |
Input offset (±) (max) (µV) |
55 |
Voltage gain (min) (V/V) |
1 |
Voltage gain (max) (V/V) |
1000 |
Noise at 1 kHz (typ) (nV√Hz) |
12.5 |
Features |
Small Size, Zero Drift |
CMRR (min) (dB) |
118 |
Input offset drift (±) (max) (µV/°C) |
0.2 |
Input bias current (±) (max) (nA) |
2.5 |
Iq (typ) (mA) |
1.4 |
Bandwidth at min gain (typ) (MHz) |
0.6 |
Gain error (±) (max) (%) |
0.2 |
Operating temperature range (°C) |
-40 to 125 |
Rating |
Catalog |
Type |
Resistor |
Output swing headroom (to negative supply) (typ) (V) |
0.22 |
Output swing headroom (to positive supply) (typ) (V) |
-0.22 |
Input common mode headroom (to negative supply) (typ) (V) |
0.1 |
Input common mode headroom (to positive supply) (typ) (V) |
-1.5 |
Noise at 0.1 Hz to 10 Hz (typ) (µVPP) |
0.25 |
SOIC (D)-8-29.4 mm² 4.9 x 6
The INA188 is a precision instrumentation amplifier that uses TI proprietary auto-zeroing techniques to achieve low offset voltage, near-zero offset and gain drift, excellent linearity, and exceptionally low-noise density (12 nV/√Hz) that extends down to dc.
The INA188 is optimized to provide excellent common-mode rejection of greater than 104 dB (G ≥ 10). Superior common-mode and supply rejection supports high-resolution, precise measurement applications. The versatile three op-amp design offers a rail-to-rail output, low-voltage operation from a 4-V single supply as well as dual supplies up to ±18 V, and a wide, high-impedance input range. These specifications make this device ideal for universal signal measurement and sensor conditioning (such as temperature or bridge applications).
A single external resistor sets any gain from 1 to 1000. The INA188 is designed to use an industry-standard gain equation: G = 1 + (50 kΩ / RG). The reference pin can be used for level-shifting in single-supply operation or for an offset calibration.
The INA188 is specified over the temperature range of –40°C to +125°C .