OPA191 - Low-Power, Precision, 36-V, e-trim CMOS Amplifier

The OPAx191 family (OPA191, OPA2191, OPA4191) is a new generation of 36-V, e-trim operational amplifiers.

These devices offer outstanding dc precision and ac performance, including rail-to-rail input/output, low offset voltage (±5 µV, typ), low offset drift (±0.2 µV/°C, typ), and 2-MHz bandwidth.

Unique features such as differential input-voltage range to the supply rail, high output current (±65 mA), high capacitive load drive of up to 1 nF, and high slew rate (5 V/µs) make the OPAx191 a robust, high-performance operational amplifier for high-voltage industrial applications.

The opax191 family of op amps is available in standard packages and is specified from –40°C to +125°C.

• Low Offset Voltage: ±5 µV
• Low Offset Voltage Drift: ±0.1 µV/°C
• Low Noise: 15 nV/√Hz at 1 kHz
• High Common-Mode Rejection: 140 dB
• Low Bias Current: ±5 pA
• Rail-to-Rail Input and Output
• Wide Bandwidth: 2.5-MHz GBW
• High Slew Rate: 5 V/µs
• Low Quiescent Current: 140 µA per Amplifier
• Wide Supply: ±2.25 V to ±18 V, 4.5 V to 36 V
• EMI/RFI Filtered Inputs
• Differential Input Voltage Range to Supply Rail
• High Capacitive Load Drive Capability: 1 nF
• Industry Standard Packages:
  • Single in SOIC-8, SOT-5, and VSSOP-8
  • Dual in SOIC-8 and VSSOP-8
  • Quad in SOIC-14 and TSSOP-14