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LTC222
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LTC222

  • 所属类别:DAC数模转换器
  • 产品名称:Micropower, Low Charge Injection, Quad CMOS Analog Switches with Data Latches
  • 厂商:LT
  • 生产批号:10+
  • 封装:SO
  • 库存状态:有库存
  • 库存量:2000
  • 最低订购量:1
  • 详细资料:点击查找LTC222的pdf资料
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  • 产品介绍

LTC222Micropower, Low Charge Injection, Quad CMOS Analog Switches with Data Latches

特点

  • Micropower Operation
  • Single 5V or ±15V Supply Operation
  • Low Charge Injection
  • Low RON
  • Low Leakage
  • Guaranteed Break Before Make
  • Latch Resistant Design
  • TTL/CMOS Compatible
  • Improved Second Source for DG221/DG222
  • Microprocessor Bus Compatible

描述

The LTC221 and LTC222 are micropower, quad CMOS analog switches which typically dissipate only 250µW from ±15V supplies and 40µW from a single 5V supply. Onboard latches allow the LTC221 and LTC222 to interface directly to most microprocessor buses. The switches have 65 Ohms typical on resistance and a very high off resistance. A break before make characteristic is inherent in these switches to prevent the shorting of two channels. The signal range is ±15V with a supply voltage of ±15V and 0V to 5V with a single 5V supply. The switches have special charge compensation circuitry which greatly reduces charge injection to a maximum of ±25pC (±15V supplies).

The LTC221 and LTC222 are designed for applications such as microprocessor controlled programmable gain amplifiers, automatic test equipment, communication systems, and data acquisition systems. The LTC221 is normally closed and the LTC222 is normally open as shown in the Logic Table

应用

  • Supply Current..................
    I+ = 40µA, I- = 5µA Max
  • Charge Injection
    ±15V Supplies.................. �25pC Max
    Single 5V Supply.................. 2pC Typ
  • RON................... 65 Ohms Typ
  • Signal Range.................... ±15V

 

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