Analog Devices OP297
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. The OP297 utilizes a super-beta input stage with bias current cancellation to maintain picoamp bias currents at all temperatures.| Part No. | OP297 |
|---|---|
| Datasheet | OP297 Download |
| Manufacturer |  Analog Devices |
| Description | Dual Low Bias Current Precision Operational Amplifier |
| Buy | Stock & Price |
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
APPLICATIONS
Strain Gauge and Bridge Amplifiers High Stability Thermocouple Amplifiers Instrumentation Amplifiers Photo-Current Monitors High-Gain Linearity Amplifiers Long-Term Integrators/Filters Sample-and-Hold Amplifiers Peak Detectors Logarithmic Amplifiers Battery-Powered SystemsGENERAL 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.
