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The AD8641/AD8642/AD8643 are low power, precision JFET input amplifiers featuring extremely low input bias current and rail-to-rail output. The ability to swing nearly rail-to-rail at the input and rail-to-rail at the output enables designers to buffer CMOS DACs, ASICs, and other wide output swing devices in single-supply systems. The outputs remain stable with capacitive loads of more than 500 pF. The AD8641/AD8642/AD8643 are suitable for applications utilizing multichannel boards that require low power to manage heat. Other applications include photodiodes, ATE reference level drivers, battery management, and industrial controls. The AD8641/AD8642/AD8643 are fully specified over the extended industrial temperature range of –40°C to +125°C. The AD8641 is available in 5-lead SC70 and 8-lead SOIC lead-free packages. The AD8642 is available in 8-lead MSOP and 8-lead SOIC lead-free packages. The AD8643 is available in 14-lead SOIC and 16-lead, 3 mm × 3 mm, LFCSP lead-free packages. Applications Line-/battery-powered instruments Photodiode amplifiers Precision current sensing Medical instrumentation Industrial controls Precision filters Portable audio ATE
| gbw | 3.50 MHz |
| mil_spec | No |
| lead_free_status | Contains Lead |
| supply_voltage_dc | 13.0 V |
| cmrr | 107 dB |
| mounting_style | Surface Mount |
| packaging | Tape, Tape & Reel (TR) |
| case_package | SOIC |
| bandwidth | 3.50 MHz |
| slew_rate | 2.00 V/μs |
| supply_current | 290 µA |
| number_of_circuits | 1 |
| lifecycle_status | Active |
| input_impedance | 25.0 GΩ |
| rohs_status | Compliant |
| pin_count | 5 |
| number_of_channels | 1 |
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