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Product Overview

MX7837JN+ is a high-precision analog-to-digital converter (ADC) chip launched by Maxim Integrated (now under Analog Devices), featuring multi-channel input, built-in sample-and-hold function, and serial output interface. Designed specifically for high-end application fields such as industrial automation, medical equipment, and precision measurement. Its excellent linearity, low distortion and high resolution enable it to perform outstandingly in the digital scenarios of analog signals.

Overview of Core Parameters

Project Parameter description

Model MX7837JN+

• ADC type: Multi-channel, high-precision ADC (analog-to-digital converter)
• Resolution: 12 bits
• Channel quantity: 8 channels differential (or 16 channels single-ended)
• The sampling rate can reach up to 100ksps
• Input voltage range ±5V
• Interface type: SPI Serial interface
• The reference voltage can be selected internally or externally
• Supply voltage: +5V single power supply
• Package type DIP (JN package), 28 pins

Operating temperature range: 0°C to +70°C (commercial grade)

Product feature highlights

• 🎯 16-channel single-ended / 8-channel differential analog input selection for flexible multi-channel signal acquisition
• 🔁 Serial digital output, suitable for low-pin systems or long-distance signal transmission
• ⚖️ Sampling-hold circuit integration for improved accuracy and anti-interference capability
• 🧠 Built-in multiplexer selector with reference voltage for complex signal source switching
• ⚡ 5V single power supply design, simplified system power configuration
• 🔍 High precision and low power consumption, suitable for precision and portable applications

Application field

MX7837JN+ can be widely applied in the following fields:

• 🏭 Industrial Process Control: Sampling and monitoring signals from multiple analog sensors
• 🏥 Medical instruments: high-resolution sampling systems such as ECG and electroencephalogram instruments
• 🔬 Datalogger: For recording environmental variables (temperature, voltage, pressure, etc.)
• 📊 Portable measuring device: multi-channel input demand scenarios
• ⚙️ Embedded control system: for digital signal processing with MCU/FPGA

Packaging and pin description

The MX7837JN+ adopts the standard DIP-28 package, which is convenient for the development of breadboard prototypes and plug-and-pull replacement.
Typical pin functions include:

• AIN0 - AIN7: Differential/single-ended analog input
• CS, SCLK, DOUT: SPI interface control pins
• VREF, AGND, DGND: Reference voltage with analog/digital ground
• +5V: Power supply port

✅ It is recommended to partition the analog ground and the digital ground to reduce system noise interference.

Compatible and alternative model recommendations

Model and brand description

• AD7490BRUZ Analog Devices 12-bit, 16-channel, SPI interface ADC
• MCP3208-CI/P Microchip 12-bit, 8-channel, low-power ADC
• ADS7953 Texas Instruments high-speed 16-channel, multi-functional ADC
• LTC1851CGN Analog Devices High-speed 16-bit multi-channel ADC

Summary

The MX7837JN+, with its 12-bit accuracy, flexible channel configuration and SPI output mode, is one of the ideal multi-channel analog sampling solutions, especially suitable for precision measurement and embedded applications. Its DIP packaging is convenient for development and debugging, and is highly engineering-friendly. As a classic model, the MX7837JN+ still has extensive practical value in modern measurement and control systems.
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