LT5400

RECOMMENDED FOR NEW DESIGNS

Quad Matched Resistor Network

Data Sheet Product Selection Table
Part Models
88
1ku List Price
Starting From $4.18
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Part Details

  • Excellent Matching
    • A-Grade: 0.01% Matching
    • B-Grade: 0.025% Matching
  • 0.2ppm/°C Matching Temperature Drift
  • ±75V Operating Voltage (±80V Abs Max)
  • 8ppm/°C Absolute Resistor Value Temperature Drift
  • Long-Term Stability: <2ppm at 2000 Hrs
  • –55°C to 150°C Operating Temperature
  • 8-Lead MSOP Package
LT5400
Quad Matched Resistor Network
Difference Amplifier Distribution of Matching Drift Product Package 1
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Documentation

Data Sheet 1

Reliability Data 1

Application Note 1

Design Note 2

Technical Articles 9

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Tools & Simulations

LTspice 9

Models for the following parts are available in LTspice:

  • LT5400-1
  • LT5400-2
  • LT5400-3
  • LT5400-4
  • LT5400-5
  • LT5400-6
  • LT5400-7
  • LT5400-8

Design Tool 1

LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

eval board
schematic 1
schematic 2
schematic 3
schematic 4
schematic 5
ADSKPMB10-EV-FMCZ

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

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Features and Benefits

  • 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

Product Details

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

Reference Designs

Figure 1. CN0554 Simplified Block Diagram
Figure 1. CN0554 Simplified Block Diagram
EVAL-CN0554-RPIZ
EVAL-CN0554-RPIZ - Top View
EVAL-CN0554-RPIZ - Bottom View
CN0554 Circuits from the lab

±10 V Analog Input and ±15 V Analog Output for Raspberry Pi Platforms

View Detailed Reference Design

Features and Benefits

  • 8-Psuedo differential inputs or 16-Single-ended inputs
  • Selectable Input Voltage range, up to ±13 V
  • 16 Single-ended Outputs
  • Up to ±15 V Outputs
  • All Power Rails Derived from the Raspberry Pi
Figure 1. EVAL-CN0560-FMCZ Simplified Block Diagram
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
CN0560 Circuits from the lab

High Precision, Wide Bandwidth Current Measurement Signal Chain

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Features and Benefits

  • Selectable Current Input Range with Protection
  • 10 A, 10mA, 10uA Measurement Range
  • Oversampling Enables up to 111 dB of Dynamic Range
CN0513 Board
CN0513 Board
CN0513 Block Diagram
AD4020 Reference Design Block Diagram
CN0513 Circuits from the lab

20-Bit, 1.8 MSPS, ±2.5 ppm INL, Low Drift, High Accuracy Data Acquisition Solution

View Detailed Reference Design

Features and Benefits

  • Data acquisition solution fully characterized over 0°C to 70°C
  • Guaranteed 20-bit no missing codes
  • INL: ±2 ppm, DNL: ±0.25 ppm
  • Throughput: 1.8 MSPS
  • Offset error drift: ±3.5 ppm/°C; gain error drift: ±6 ppm/°C
  • SNR: 98 dB at G = 1, 92 dB at G = 10, fIN = 1 kHz
  • THD: −120 dB at G = 1, −116 dB at G = 10, fIN = 1 kHz
  • Oversampled dynamic range: 102 dB at 900 kSPS, OSR = 2
  • Software programmable bipolar input ranges (±1 V to ±10 V)
    • Allows single-ended and differential signals
  • CMRR: 92 dB typical
  • GΩ input impedance allows direct interface with sensors
  • Ease of use features reduce system power and complexity
  • ADC Input overvoltage clamp protection sinks up to 50 mA
  • On-board 5 V reference and buffer
  • First conversion accurate, no latency/pipeline delay
  • Fast conversion time allows low SPI clock rates
  • SPI-/QSPI-/MICROWIRE-/DSP-compatible serial interface
CN0554
±10 V Analog Input and ±15 V Analog Output for Raspberry Pi Platforms
Figure 1. CN0554 Simplified Block Diagram
EVAL-CN0554-RPIZ
EVAL-CN0554-RPIZ - Top View
EVAL-CN0554-RPIZ - Bottom View
CN0560
High Precision, Wide Bandwidth Current Measurement Signal Chain
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-Bit, 1.8 MSPS, ±2.5 ppm INL, Low Drift, High Accuracy Data Acquisition Solution
CN0513 Board
CN0513 Block Diagram
AD4020 Reference Design Block Diagram

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