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 .
|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||4||36||118||55||0.2||2.5||12.5||1.4||0.6||1||1000||0.5||-40 to 125||
SOIC | 8
SON | 8
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
8SON: 16 mm2: 4 x 4 (SON | 8)
||1||4.5||36||140||50||0.5||0.6||7||0.6||2||1||1000||0.15||-40 to 125||SOIC | 8||8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)||0.14||0.001|