INA592 - High-Precision, Wide-Bandwidth e-trim Difference Amplifier

The INA592 device is a low-power, wide bandwidth-difference amplifier consisting of aprecision operational amplifier (op amp) and a precision resistor network. Excellent TCR trackingof the resistors maintains gain accuracy and common-mode rejection over temperature. Uniquefeatures such as low offset 40 µV (maximum), low offset drift (1.5 µV/°C maximum) high slew rate(20 V/µs), and high capacitive load drive of up to 500 pF make the INA592 a robust,high-performance difference amplifier for high-voltage industrial applications. The common-moderange of the internal op amp extends to the negative supply, enabling the device to operate insingle-supply applications. The device operates on single (2.7 V to 36 V) or dual supplies (±1.35 Vto ±18 V).

The differential amplifier is the foundation of many commonly used circuits. The INA592provides this circuit function without using an expensive precision resistor network. The INA592 isavailable in 8-pin VSSOP surface-mount package and is specified for operation over the extendedindustrial temperature range, –40°C to +125°C.

• Low Offset Voltage: 40 µV (Maximum)
• Low Offset Voltage Drift: ±1.5 µV/°C (Maximum)
• Low Noise: 20 nV/√Hz at 1 kHz
• Low Gain Error: ±0.03% (Maximum)
• High Common-Mode Rejection: 88 dB (Minimum)
• Wide Bandwidth: 2.2 MHz GBW
• Low Quiescent Current: 1 mA per Amplifier
• High Slew Rate: 20 V/µs
• High Capacitive Load Drive Capability: 500 pF
• Wide Supply Range:
  • Single-Supply: 4.5 V to 36 V
  • Dual-Supply: ±2.25 V to ±18 V
• Specified Temperature Range:
  –40°C to +125°C
• 8-Pin VSSOP Package

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