The INA333 device is a low-power, precision instrumentation amplifier offering excellent accuracy. The versatile 3-operational amplifier design, small size, and low power make it ideal for a wide range of portable applications.
A single external resistor sets any gain from 1 to 1000. The INA333 is designed to use an industry-standard gain equation: G = 1 + (100 kΩ / RG).
The INA333 device provides very low offset voltage (25 µV, G ≥ 100), excellent offset voltage drift (0.1 µV/°C, G ≥ 100), and high common-mode rejection (100 dB at G ≥ 10). It operates with power supplies as low as 1.8 V (±0.9 V) and quiescent current is only 50 µA, making it ideal for battery-operated systems. Using autocalibration techniques to ensure excellent precision over the extended industrial temperature range, the INA333 device also offers exceptionally low noise density (50 nV/√Hz) that extends down to DC.
The INA333 device is available in both 8-pin VSSOP and WSON surface-mount packages and is specified over the TA = 40°C to +125°C temperature range.
|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|
SON | 8
VSSOP | 8
See datasheet (SON)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)