MAX9632
36V, Precision, Low-Noise, Wide-Band Amplifier
Show MoreFast-Settling, High-Voltage Op Amp is Ideal for an ADC Buffer
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- 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
The MAX9632 is a low-noise, precision, wide-band operational amplifier that can operate in a very wide +4.5V to +36V supply voltage range. The IC operates in dual (±18V) or single-supply mode (36V).
The exceptionally fast settling time and low distortion make the IC an excellent solution for precision acquisition systems. The rail-to-rail output swing maximizes the dynamic range when driving high-resolution 24-bit ΣΔ ADCs even with low supply voltages.
The IC achieves 55MHz of gain-bandwidth product and ultra-low 0.94nV/ input voltage noise with only 3.9mA of quiescent current.
The IC is offered in 8-pin SO, µMAX®, and TDFN packages and is rated for operation over the -40°C to +125°C temperature range.
Applications
- ATE
- High-Resolution ADC Drivers
- High-Resolution DAC Buffers
- Low-Noise Signal Processing
- Medical Imaging
- Test and Measurement Systems
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MAX9632
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Evaluation Kits 1
MAXSANTAFEEVSYS
Evaluation Kit for the MAXREFDES5 4-Channel Analog Front End
Product Detail
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
Resources
Tools & Simulations 1
SPICE Model 1
Reference Designs 5
MAXREFDES60
16-Bit Analog Output Micro PLC
MAXREFDES46
4-Channel Analog Input/Output
MAXREFDES6 (Fremont)
16-Bit, High-Accuracy, 0 to 100mV Input, Isolated Analog Front-End (AFE)
Santa Fe (MAXREFDES5)
16-Bit High Accuracy Multi-Input Isolated Analog Front End (AFE)
Reference Designs5
MAXREFDES60
16-Bit Analog Output Micro PLC
MAXREFDES46
4-Channel Analog Input/Output
MAXREFDES6 (Fremont)
16-Bit, High-Accuracy, 0 to 100mV Input, Isolated Analog Front-End (AFE)
Santa Fe (MAXREFDES5)
16-Bit High Accuracy Multi-Input Isolated Analog Front End (AFE)
MAXREFDES74
MAXREFDES74: 18-Bit Precision Data Acquisition System