LTC6912

量产

Dual Programmable Gain Amplifiers with Serial Digital Interface

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ADI公司所提供的资料均视为准确、可靠。但本公司不为用户在应用过程中侵犯任何专利权或第三方权利承担任何责任。技术指标的修改不再另行通知。本公司既没有含蓄的允许，也不允许借用ADI公司的专利或专利权的名义。本文出现的商标和注册商标所有权分别属于相应的公司。
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概述

  • 2 Channels with Independent Gain Control
    • LTC6912-1: (0, 1, 2, 5, 10, 20, 50, and 100V/V)
    • LTC6912-2: (0, 1, 2, 4, 8, 16, 32, and 64V/V)
  • Offset Voltage = 2mV Max (–40°C to 85°C)
  • Channel-to-Channel Gain Matching of 0.1dB Max
  • 3-Wire SPITM Interface
  • Extended Gain-Bandwidth at High Gains
  • Wired-OR Outputs Possible (2:1 Analog MUX Function)
  • Low Power Hardware Shutdown (GN-16 Only, 2µA Max at 2.7V)
  • Rail-to-Rail Input Range
  • Rail-to-Rail Output Swing
  • Single or Dual Supply: 2.7V to 10.5V Total
  • Input Noise: 12.6nV/√Hz
  • Total System Dynamic Range to 115dB
  • 16-Pin GN (SSOP) or 12-Pin DFN Package Options

The LTC6912 is a family of dual channel, low noise, digitally programmable gain amplifiers (PGA) that are easy to use and occupy very little PC board space. The gains for both channels are independently programmable using a 3-wire SPI interface to select voltage gains of 0, 1, 2, 5, 10, 20, 50, and 100V/V (LTC6912-1 ); and 0, 1, 2, 4, 8, 16, 32, and 64V/V (LTC6912-2). All gains are inverting.

The LTC6912 family consists of 2 matched amplifiers with rail-to-rail outputs. When operated with unity gain, they will also process rail-to-rail input signals. A half-supply reference generated internally at the AGND pin supports single power supply applications. Operating from single or split supplies from 2.7V to 10.5V total, the LTC6912-X family is offered in tiny SSOP and DFN-12 Packages.

Applications

  • Data Acquisition Systems
  • Dynamic Gain Changing
  • Automatic Ranging Circuits
  • Automatic Gain Control
LTC6912
Dual Programmable Gain Amplifiers with Serial Digital Interface
A Dual, Matched Low Noise PGA (16-Lead SSOP Package) LTC6912-2 Frequency Response Product Package 1 Product Package 2
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eval board
schematic 1
DC861A-B

LTC6912双通道数字控制PGA/可编程数据采集测量和控制系统

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产品详情

DC861A-B：具有串行数字接口的LTC6912双通道可编程增益放大器演示板。

eval board
schematic 2
DC861A-A

LTC6912双通道数字控制PGA/可编程数据采集测量和控制系统

立即购买 更多内容

产品详情

DC861A-A：具有串行数字接口的LTC6912双通道可编程增益放大器演示板。
DC861A-B
LTC6912双通道数字控制PGA/可编程数据采集测量和控制系统
DC861A-A - Schematic
DC861A-A
LTC6912双通道数字控制PGA/可编程数据采集测量和控制系统
DC861A-A - Schematic

最新评论

2 年前
LTC6912 输入是否有保护？
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