Analog Products

概览

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The HA-2420 and HA-2425 is a monolithic circuit consisting of a high performance operational amplifier with its output in series with an ultra-low leakage analog switch and JFET input unity gain amplifier. With an external hold capacitor connected to the switch output, a versatile, high performance sample-and-hold or track-and-hold circuit is formed. When the switch is closed, the device behaves as an operational amplifier, and any of the standard op amp feedback networks may be connected around the device to control gain, frequency response, etc. When the switch is opened the output will remain at its last level. Performance as a sample-and-hold compares very favorably with other monolithic, hybrid, modular, and discrete circuits. Accuracy to better than 0. 01% is achievable over the temperature range. Fast acquisition is coupled with superior droop characteristics, even at high temperatures. High slew rate, wide bandwidth, and low acquisition time produce excellent dynamic characteristics. The ability to operate at gains greater than 1 frequently eliminates the need for external scaling amplifiers. The device may also be used as a versatile operational amplifier with a gated output for applications such as analog switches, peak holding circuits, etc. For more information, please see Application Note AN517.

  • Maximum Acquisition Time
  • 10V Step to 0.1% 4µs (Max)
  • 10V Step to 0.01% 6µs (Max)
  • Low Droop Rate (CH = 1000pF) 5µV/ms (Typ)
  • Gain Bandwidth Product 2.5MHz (Typ)
  • Low Effective Aperture Delay Time 30ns (Typ)
  • TTL Compatible Control Input
  • ±12V to ±15V Operation
  • 12-Bit Data Acquisition
  • Digital to Analog Deglitcher
  • Auto Zero Systems
  • Peak Detector
  • Gated Operational Amplifier

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