OPA627AU/2K5

TEXAS INSTRUMENTS

55V/µs high-speed 0.8µV/˚C max drift precision operational amplifier


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Features for the OPA627

  • Very low noise: 4.5nV/√Hz at 10kHz
  • Fast settling time:
    • OPA627: 550ns to 0.01%
    • OPA637: 450ns to 0.01%
  • Low VOS: 100µV maximum
  • Low drift: 0.8µV/°C maximum
  • Low IB: 5pA maximum
  • Gain options:
    • OPA627: Unity-gain stable
    • OPA637: Stable in gain ≥ 5

Description for the OPA627

The OPA627 and OPA637 (OPA6x7) operational amplifiers (op amps) provide a new level of performance in a precision FET operational amplifier. When compared to the popular OPA111 op amp, the OPA6x7 have lower noise, lower offset voltage, and higher speed. The OPA6x7 are useful in a broad range of precision and high-speed analog circuitry.

The OPA6x7 is fabricated on a high-speed, dielectrically-isolated, complementary NPN/PNP process. The OPA6x7 operate over a wide power-supply voltage range of ±4.5V to ±18V. Laser-trimmed input circuitry provides high accuracy and low-noise performance comparable with the best bipolar-input op amps.

High-frequency complementary transistors allow increased circuit bandwidth, attaining dynamic performance not possible with previous precision FET op amps. The OPA627 is unity-gain stable. The OPA637 is stable in gains ≥ 5.

State-of-the-art, precision FET transistors achieve extremely low input bias currents without compromising input voltage noise performance. Low input bias current is maintained over a wide input common-mode voltage range with unique cascode circuitry.

The OPA6x7 are available in SOIC-8 and TO-99 packages. Industrial temperature range models are available.