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OP297 Datasheet Dual Low Bias Current Precision Operational Amplifier

Manufacturer: Analog Devices

Overview: 8/21/97 4:00 PM a.

General Description

Dual Low Bias Current Precision Operational Amplifier OP297 PIN CONNECTIONS Plastic Epoxy-DIP (P Suffix) 8-Pin Cerdip (Z Suffix) 8-Pin Narrow Body SOIC (S Suffix) OUT A 1 +IN A 3 V– 4 – 8 A – B V+ OUT B –IN B +IN B + –IN A 2 7 6 5 Errors due to common-mode signals are eliminated by the OP297’s common-mode rejection of over 120 dB.

The OP297’s power supply rejection of over 120 dB minimizes offset voltage changes experienced in battery powered systems.

Supply current of the OP297 is under 625 µA per amplifier and it can operate with supply voltages as low as ± 2 V.

Key Features

  • Precision Performance in Standard SO-8 Pinout Low Offset Voltage: 50 ␮V max Low Offset Voltage Drift: 0.6 ␮V/؇ C max Very Low Bias Current: ␣ ␣ +25؇ C (100 pA max) ␣ ␣.
  • 55 ؇C to +125 ؇C (450 pA max) Very High Open-Loop Gain (2000 V/mV min) Low Supply Current (Per Amplifier): 625 ␮A max Operates From 62 V to 620 V Supplies High Common-Mode Rejection: 120 dB min Pin Compatible to LT1013, AD706, AD708, OP221, ␣ ␣ LM158, and MC1458/1558 with Improved Performance.

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