●The OPA615 is a complete subsystem for very fast and precise DC restoration, offset clamping, and low-frequency hum suppression of wideband amplifiers or buffers. Although it is designed to stabilize the performance of video signals, the circuit can also be used as a sample-and-hold amplifier, high-speed integrator, or peak detector for nanosecond pulses. The device features a wideband Operational Transconductance Amplifier (OTA) with a high-impedance cascode current source output and fast and precise sampling comparator that together set a new standard for high-speed applications. Both the OTA and the sampling comparator can be used as stand-alone circuits or combined to form a more complex signal processing stage. The self-biased, bipolar OTA can be viewed as an ideal voltage-controlled current source and is optimized for low input bias current. The sampling comparator has two identical high-impedance inputs and a current source output optimized for low output bias current and offset voltage; it can be controlled by a TTL-compatible switching stage within a few nanoseconds. The transconductance of the OTA and sampling comparator can be adjusted by an external resistor, allowing bandwidth, quiescent current, and gain trade-offs to be optimized.
●The OPA615 is available in both an SO-14 surface-mount and an MSOP-10 package.
● PROPAGATION DELAY: 1.9ns
● BANDWIDTH:
●OTA: 710MHz
●Comparator: 730MHz
● LOW INPUT BIAS CURRENT: ±1µA
● SAMPLE-AND-HOLD SWITCHING TRANSIENTS: ±5mV
● SAMPLE-AND-HOLD FEEDTHROUGH REJECTION: 100dB
● CHARGE INJECTION: 40fC
● HOLD COMMAND DELAY TIME: 2.5ns
● TTL/CMOS HOLD CONTROL
● APPLICATIONS
● BROADCAST/HDTV EQUIPMENT
● TELECOMMUNICATIONS EQUIPMENT
● HIGH-SPEED DATA ACQUISITION
● CAD MONITORS/CCD IMAGE PROCESSING
● NANOSECOND PULSE INTEGRATOR/PEAK DETECTOR
● PULSE CODE MODULATOR/DEMODULATOR
● COMPLETE VIDEO DC LEVEL RESTORATION
● SAMPLE-AND-HOLD AMPLIFIER
● SHC615 UPGRADE
●All trademarks are the property of their respective owners.
Part 3D Model
