OPA861
FEATURES
- Wide Bandwidth (80MHz, Open-Loop, G = +5)
- High Slew Rate (900V/µs)
- High Transconductance (95m A/V)
- External IQ-Control
- Low Quiescent Current (5.4m A)
APPLICATIONS
- Video/Broadcast Equipment
- munications Equipment
- High-Speed Data Acquisition
- Wideband LED Drivers
- Control Loop Amplifiers
- Wideband Active Filters
- Line Drivers
DESCRIPTION
The OPA861 is a versatile monolithic ponent designed for wide-bandwidth systems, including high performance video, RF and IF circuitry. The OPA861 is a wideband, bipolar operational transconductance amplifier (OTA).
The OTA or voltage-controlled current source can be viewed as an ideal transistor. Like a transistor, it has three terminals- a high impedance input (base), a low-impedance input/output (emitter), and the current output (collector). The OPA861, however, is selfbiased and bipolar. The output collector current is zero for a zero base-emitter voltage. AC inputs centered about zero produce an output current, which is...
