The INA317 is a low-power, precision instrumentation amplifier offering excellent accuracy. The versatile 3-operational amplifier design, small size and low power make the INA317 usable in a wide range of portable applications.
A single external resistor sets any gain from 1 to 1000, as defined by the industry-standard gain equation: G = 1 + (100 kΩ / RG).
The instrumentation amplifier provides low offset voltage (75 µV, G ≥ 100), excellent offset voltage drift
(0.3 µV/°C, G ≥ 100) and high common-mode rejection (100 dB at G ≥ 10). The INA317 operates with power supplies as low as 1.8 V (±0.9 V) and a quiescent current of 50 µA, making the device usable in battery-operated systems. Using autocalibration techniques to ensure precision over the extended industrial temperature range, the INA317 device offers low noise density (50 nV/√Hz) that extends down to DC.
The INA317 is available in an 8-pin VSSOP surface-mount package and is specified over the TA = –40°C to +125°C temperature range.
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|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 size: mm2:W x L (PKG)|
|Noise at 0.1 Hz-10 Hz (Typ) (uVpp)|
|-40 to 125|
|VSSOP | 8|
|8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)|