MAX6682MUA+

Sensor And Detector Interfaces Overview

The MAX6682MUA+ is a thermistor-to-digital converter housed in an 8-pin µMAX package. It operates on a supply voltage ranging from 3V to 5.5V and functions within a temperature range of -55°C to +125°C. The device provides 10-bit resolution with a typical average supply current of 21µA. It utilizes a 3-wire SPI-compatible interface for data output.

Sensor And Detector Interfaces Feature Summary

• Converts external thermistor resistance directly into digital form without requiring linearization of the NTC transfer function.
• Minimizes self-heating errors by reducing average thermistor current and shutting down the internal voltage reference between measurements.
• Features an internal voltage reference that isolates the thermistor measurement from power-supply noise.
• Provides output data scaled for direct temperature readings over specific ranges, such as 0°C to +50°C.

Sensor And Detector Interfaces Applications

• HVAC systems
• Medical devices
• Battery packs and chargers
• Home appliances

Sensor And Detector Interfaces Procurement Notes

Verify the component authenticity through official manufacturer channels or authorized distributors. Confirm the ordering suffix matches the required specifications. Ensure compliance with relevant environmental standards before integration into final products.

Sensor And Detector Interfaces Selection Notes

Select this component when a compact solution for converting NTC thermistor signals to digital data is required. Consider the 10-bit resolution and low power consumption suitable for battery-operated applications. Verify compatibility with the host microcontroller's SPI interface timing requirements.

Sensor And Detector Interfaces Part Context

This part belongs to the MAX6682 series of thermistor-to-digital converters manufactured by Analog Devices / Maxim Integrated. It is designed to simplify temperature sensing by eliminating the need for external ADCs or complex linearization circuits in embedded systems.

Sensor And Detector Interfaces Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Consult the manufacturer for potential cross-reference options if this specific package or variant is unavailable.

Sensor And Detector Interfaces FAQ

How does the MAX6682 handle thermistor nonlinearity?

The MAX6682 does not linearize the highly nonlinear transfer function of a typical NTC thermistor. However, it provides linear output data over limited temperature ranges when used with an external resistor of the correct value.

What is the typical average supply current of the MAX6682?

The typical average supply current is 21µA, including the 10kΩ thermistor current, when operating at 0.5 conversions per second with no load.

Can the MAX6682 be used with different types of thermistors?

Yes, the MAX6682 works with various thermistors. Different temperature ranges can be accommodated by selecting appropriate values for the external resistor REXT to minimize nonlinearity errors.