MAX9632

Obsolete

36V, Precision, Low-Noise, Wide-Band Amplifier

Fast-Settling, High-Voltage Op Amp is Ideal for an ADC Buffer

Data Sheet (Rev. 5)
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Part Details

  • DC and AC Performance Ideal for High-Resolution ADC Driver Applications
    • 55MHz Gain-Bandwidth
    • 600ns Settling Time to 16-Bit Accuracy
    • THD of -128dB at 10kHz
    • Low Input Offset Voltage 125µV (max)
    • 0.94nV/√Hz Ultra-Low Input Voltage Noise
    • Low Input Offset Temperature Drift 0.5µV/°C (max)
    • Unity-Gain Stable
  • Wide Supply for High-Voltage Front-Ends
    • +4.5V to +36V Supply Range
  • Improved Reliability with ESD Protection
    • ±8kV HBM and ±1kV CDM ESD
  • Low Pin Count Packages Save Board Space
    • 8-Pin SO, µMAX, TDFN Packages
MAX9632
36V, Precision, Low-Noise, Wide-Band Amplifier
MAX9632: Typical Application Circuit
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 5

Design Note 2

Technical Articles 5

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Tools & Simulations

SPICE Model 1

Evaluation Kits

MAXSANTAFEEVSYS

Evaluation Kit for the MAXREFDES5 4-Channel Analog Front End

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Features and Benefits

  • Self-Contained Easy Evaluation Kit for MAXREFDES5
  • Optimized AFE with Common Analog Input Ranges
  • Small Form Factor Test Platform
  • All Relevant Reference Design Files Included

Product Details

The MAXSANTAFEEVSYS kit allows users to quickly demonstrate and evaluate the functionality of the MAXREFDES5 4-channel 16-bit, isolated analog front end (AFE) reference design without the need for a bench power supply, signal generator equipment, or Xilinx development kit. The reference design board connects to a PC through an included USB-to-SPI adapter that provides both power and data communication to the board. To test the AFE reference design, a USB-powered signal generator board utilizing one of Maxim’s digital-to-analog converters (DAC) is also included. A Windows®-based graphical user interface (GUI) communicates with the boards for generating various analog signal test patterns and simplified access to AFE measurement data.

MAXSANTAFEEVSYS User Manual is available for download.

The MAXREFDES5 reference design is a 4-channel analog front end (AFE) that accepts -10V to +10V, 0V to 10V, and 4–20mA current loop signals. The design integrates a 16-bit ADC with multirange input programmability (MAX1301) plus low-noise, high-impedance analog buffers (MAX9632) on two of the input channels and an ultra-high precision 4.096V voltage reference (MAX6126) to achieve maximum performance from the 16-bit system. A 600VRMS digital isolator (MAX14850) and 3W transformer driver (MAX256) provide the necessary isolated data and power connections to the host system. LDO regulators (MAX1659) provide regulated +12V, -12V, and 5V power rails to the analog front end.

EV Kit Contents
  • MAXREFDES5 4-Channel AFE Board
  • USB2PMB1 USB to Pmod™ Type 2A Adapter Board
  • MAX5216DACLITE Signal Generator Board
  • Two (2) Wires with Hook Clips (1 Red and 1 Black)
  • Two (2) USB Type A Male to USB Type B Mini Cables
  • USB Flash Drive with Documentation, GUI Applications, and USB Drivers

Applications

  • Industrial Data Acquisition
  • Programmable Automation Controllers (PAC)
  • Programmable Logic Controllers (PLC)
  • Proportional-Integral-Derivative (PID) Controllers
MAXSANTAFEEVSYS
Evaluation Kit for the MAXREFDES5 4-Channel Analog Front End

Reference Designs

MAXREFDES60
MAXREFDES60
This single channel analog output reference design is in the micro PLC form factor. The on-board microcontroller controls a 16-bit DAC to produce a high accuracy 0-10V output. The design features isolated power and data.
MAXREFDES60 Circuits from the lab

16-Bit Analog Output Micro PLC

View Detailed Reference Design

Features and Benefits

  • High accuracy
  • 0 to 10V voltage output with ±20% overrange
  • Isolated power and data
  • Micro PLC form factor
  • Device drivers
  • Example C source code
  • Test data
MAXREFDES46
MAXREFDES46
MAXREFDES46-Fig01
MAXREFDES46 Circuits from the lab

4-Channel Analog Input/Output

View Detailed Reference Design

Features and Benefits

Features

  • Programmable high-accuracy current/voltage output
  • High accuracy
  • ±10V, 0 to 10V, and 4–20mA Inputs
  • Current output drives 0 to 1kΩ
  • Voltage output drives loads down to 1kΩ
  • Extensive error reporting
  • Isolated power and data
  • Device drivers
  • Example C source code

Competitive Advantages

  • Flexibility
  • System safety
  • Small solution size

Applications

  • PLCs
  • DCS
  • Distributed I/Os
  • Embedded systems
  • Industrial control and automation
MAXREFDES6
MAXREFDES6
MAXREFDES6 - Design Block Diagram
MAXREFDES6 (Fremont) Circuits from the lab

16-Bit, High-Accuracy, 0 to 100mV Input, Isolated Analog Front-End (AFE)

View Detailed Reference Design

Features and Benefits

Features

  • Applications
  • High-accuracy analog input
  • High impedance
  • 0 to 100mV input range
  • Isolated data path
  • Small printed-circuit board (PCB) area
  • Device drivers
  • Example C source code
  • Pmod™-compatible form factor

Applications

  • Low-voltage output sensors
  • Process control
  • Medical

Competitive Advantages

  • Unique single-ended architecture
  • Optimized board size
  • Magnetically immune data path isolation
maxrefdes5fig00
maxrefdes5fig00
maxrefdes5fig01
Santa Fe (MAXREFDES5) Circuits from the lab

16-Bit High Accuracy Multi-Input Isolated Analog Front End (AFE)

View Detailed Reference Design

Features and Benefits

  • High accuracy
  • ±10V, 0 to 10V, and 4–20mA Inputs
  • Isolated power and data
  • Small printed circuit board (PCB) area
  • Device drivers
  • Example C source code
  • Pmod™-compatible form factor

MAXREFDES74
MAXREFDES74
MAXREFDES74 Circuits from the lab

MAXREFDES74: 18-Bit Precision Data Acquisition System

View Detailed Reference Design

Features and Benefits

The MAXREFDES74# reference design features:

  • Power and data isolation
  • Flexible, configurable inverting or noninverting input scheme
  • Unipolar or bipolar input (ADC) and output (DAC)

MAX11156

  • 18-bit resolution with no missing codes
  • SNR: 94.4dB
  • THD: -107dB at 1kHz
  • Buffered internal or external voltage reference input
  • Internal reference with -6ppm/°C (typ) temperature coefficient
  • Single 5V supply
  • True bipolar ±5V input range

MAX5318

  • 18-bit resolution with no missing codes
  • High accuracy: ±2 LSB INL (max)
  • 3µs settling time
  • User-programmable offset and gain calibration
  • ±0.5ppm/°C (typ) offset and gain drift over temperature
  • Force/sense output
  • 50MHz SPI-compatible interface with 1.8V to 5.5V logic
MAXREFDES60
16-Bit Analog Output Micro PLC
MAXREFDES60
This single channel analog output reference design is in the micro PLC form factor. The on-board microcontroller controls a 16-bit DAC to produce a high accuracy 0-10V output. The design features isolated power and data.
MAXREFDES46
4-Channel Analog Input/Output
MAXREFDES46
MAXREFDES46-Fig01
MAXREFDES6 (Fremont)
16-Bit, High-Accuracy, 0 to 100mV Input, Isolated Analog Front-End (AFE)
MAXREFDES6
MAXREFDES6 - Design Block Diagram
Santa Fe (MAXREFDES5)
16-Bit High Accuracy Multi-Input Isolated Analog Front End (AFE)
maxrefdes5fig00
maxrefdes5fig01
MAXREFDES74
MAXREFDES74: 18-Bit Precision Data Acquisition System
MAXREFDES74

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