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LT5400

推荐新设计使用

四个匹配的电阻器

产品模型
88
产品技术资料帮助

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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产品详情

  • 卓越的匹配性能
    • A 级:0.01% 匹配准确度
    • B 级:0.025% 匹配准确度
  • 0.2ppm/ºC 匹配温度漂移
  • ±75V 工作电压 (±80V 绝对最大值)
  • 8ppm/ºC 绝对电阻值温度漂移
  • 长期稳定性:< 2ppm (在 2000 小时)
  • –55ºC 至 150ºC 工作温度范围
  • 8 引脚 MSOP 封装
LT5400
四个匹配的电阻器
Difference Amplifier Distribution of Matching Drift Product Package 1
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工具及仿真模型


评估套件

eval board
ADSKPMB10-EV-FMCZ

Single-Channel, Fully Isolated, Low Latency Data Acquisition System (DAQ)

特性和优点

  • Fully Isolated PMOD-to-FMC interposer board
  • Software programmable bipolar input ranges (±1.1 V to ±11.0 V)
    • Allows single-ended and differential signals
  • GΩ input impedance allows direct interface with sensors
  • On-board 5 V reference and buffer
  • Complete power management solution
  • SPI-/QSPI-/MICROWIRE-/DSP-compatible serial interface
  • PC software for control and data analysis of time and frequency domain

产品详情

The ADSKPMB10-EV-FMCZ signal chain kit is a two-board solution, which consists of a Precision Medium Bandwidth Data Acquisition Solution on a PMOD form factor and a Fully Isolated PMOD-to-FMC interposer board.

The Precision Medium Bandwidth Data Acquisition Solution features a discrete programmable gain instrumentation amplifier (PGIA) that was built using a 30V, High Speed, Low Noise, Low Bias Current, JFET Operational Amplifier, the ADA4627-1, a Precision Quad Matched Resistor Network, the LT5400, a Low Capacitance, 4-Channel, ±15 V/+12 V iCMOS Multiplexer, the ADG1209 and the internal Fully Differential Amplifier (FDA) ADC driver of the ADAQ4003. The PGIA in thru front-end offers high input impedance that allows direct interface with a variety of sensors. A programmable gain is often needed to adapt the circuit to different input signal amplitudes—unipolar or bipolar and single-ended or differential with varying common-mode voltages. The PGIA works with the ADAQ4003, an 18-Bit, 2 MSPS, µModule® Data Acquisition Solution.

The Fully Isolated PMOD-to-FMC interposer board was designed using a Low Noise, 1A, 1MHz Push-Pull DC/DC Driver with Duty Cycle Control, the LT3999, a Robust 3.0kVrms Digital Isolators w/ Fail-Safe for the SPI lines and PGIA gain control pins, the ADuM152N and the ADuM120N, and a Low noise and ultra-low noise LDO regulators the ADP7105 and the ADP150N respectively.

APPLICATIONS

  • Data acquisition and system monitoring
  • Automated test equipment
  • Instrumentation 
  • Medical equipment

ADSKPMB10-EV-FMCZ
Single-Channel, Fully Isolated, Low Latency Data Acquisition System (DAQ)
ADSKPMB10-EV-FMCZ ADSKPMB10-EV-FMCZ - Top View ADSKPMB10-EV-FMCZ - Bottom View ADSKPMB10-EV-FMCZ Kit with SDP-H1 ADSKPMB10-EV-FMCZ Kit with SDP-H1 - Top View

参考电路

Figure 1. EVAL-CN0560-FMCZ Simplified Block Diagram
CN0560 参考设计

高精度、宽带宽电流测量信号链

特性和优点

  • 具有保护特性的可选电流输入范围
  • 10 A、10mA、10uA测量范围
  • 过采样支持高达111 dB的动态范围
CN0513 Board
CN0513 参考设计

20位、1.8 MSPS、±2.5 ppm INL、低漂移、高精度数据采集解决方案

特性和优点

  • 数据采集解决方案在0°C70°C范围内经过完全表征
  • 保证20位无失码
  • INL±2 ppmDNL±0.25 ppm
  • 吞吐速率:1.8 MSPS
  • 失调误差漂移:±3.5 ppm/°C;增益误差漂移:±6 ppm/°C
  • SNR98 dBG = 1时),92 dBG = 10时),fIN = 1 kHz
  • THD-120 dBG = 1时),-116 dBG = 10时),fIN = 1 kHz
  • 过采样动态范围:102 dB (900 kSPS)OSR = 2
  • 软件可编程双极输入范围(±1 V±10 V
    • 允许单端和差分信号
  • CMRR92 dB(典型值)
  • 输入阻抗允许与传感器直接接口
  • 易用特性可降低系统功耗和复杂性
  • 高达50 mAADC输入过压箝位保护吸电流
  • 片内5 V基准电压和缓冲
  • 第一转换精度,无延迟/流水线延迟
  • 快速转换时间支持低SPI时钟速率
  • SPI/QSPI/MICROWIRE/DSP兼容串行接口
Figure 1. CN0554 Simplified Block Diagram
CN0554 参考设计

±10 V 模拟输入和±15 V 模拟输出,适用于树莓派平台

特性和优点

  • 8个伪差分输入或16个单端输入
  • 高达±13 V的可选输入电压范围
  • 16个单端输出
  • 高达±15 V输出
  • 所有电源轨由树莓派供电
CN0560
高精度、宽带宽电流测量信号链
Figure 1. EVAL-CN0560-FMCZ Simplified Block Diagram
EVAL-CN0560-FMCZ Evaluation Board
EVAL-CN0560-FMCZ Evaluation Board - Top View
EVAL-CN0560-FMCZ Evaluation Board - Bottom View
CN-0560 and SDP-H1
CN0513
20位、1.8 MSPS、±2.5 ppm INL、低漂移、高精度数据采集解决方案
CN0513 Board
CN0513 Block Diagram
AD4020 Reference Design Block Diagram
CN0554
±10 V 模拟输入和±15 V 模拟输出,适用于树莓派平台
Figure 1. CN0554 Simplified Block Diagram
EVAL-CN0554-RPIZ
EVAL-CN0554-RPIZ - Top View
EVAL-CN0554-RPIZ - Bottom View

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