OPA857
Features
- 1 Internal Midscale Reference Voltage
- Pseudo-Differential Output Voltage
- Wide Dynamic Range
- Closed-Loop Transimpedance Bandwidth:
- 125 MHz (5-kΩ Transimpedance Gain, 1.5-p F External Parasitic Capacitance)
- 105 MHz (20-kΩ Transimpedance Gain, 1.5-p F External Parasitic Capacitance)
- Ultralow Input-Referred Current Noise (Brickwall Filter BW = 135 MHz): 15 n ARMS (20-kΩ Transimpedance)
- Very Fast Overload Recovery Time: < 25 ns
- Internal Input Protection Diode
- Power Supply:
- Voltage: 2.7 V to 3.6 V
- Current: 23.4 m A
- Extended Temperature Range:
- 40°C to +85°C
2 Applications
- Photodiode Monitoring
- High-Speed I/V Conversion
- Optical Amplifiers
- CAT-Scanner Front-Ends
3 Description
The OPA857 is a wideband, fast overdrive recovery, fast-settling, ultralow-noise transimpedance amplifier targeted at photodiode monitoring applications. With selectable feedback resistance, the OPA857 simplifies the design of high-performance optical systems. Very fast overload...
