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OPA615ID

Wide Bandwidth, DC Restoration Circuit

Packaging

Package | PIN: D | 14
Temp: I (-40 to 85)
Carrier: Partial Tube
Qty Price
1-9 $10.74
10-24 $9.98
25-99 $9.64
100-249 $8.42
250-499 $8.01
500-749 $7.37
750-999 $6.62
1000+ $6.60

Features

  • 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

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Texas Instruments  OPA615ID

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.