AD7710SQ

Analog To Digital Converters (ADC) Overview

The AD7710SQ is a 24-bit sigma-delta analog-to-digital converter (ADC) designed for low-frequency measurement applications. It features a two-channel programmable gain front end with gains ranging from 1 to 128 and differential inputs. The device guarantees 24 bits of no missing codes performance with integral nonlinearity of ±0.0015% FSR at +25°C. Operating temperatures range from -55°C to +125°C. Power consumption is typically 25 mW in normal mode and 7 mW in power-down mode. It supports single or dual supply operation with AVDD between 5 V and 10 V, and DVDD at 5 V.

Analog To Digital Converters (ADC) Feature Summary

• Charge balancing ADC architecture providing high precision signal conversion
• Two-channel programmable gain front end accepting direct transducer signals
• On-chip self-calibration and system calibration modes eliminating drift errors
• Bidirectional serial interface compatible with microcontrollers and DSPs

Analog To Digital Converters (ADC) Applications

• Weigh scales
• Thermocouples
• Process control systems
• Smart transmitters
• Chromatography equipment

Analog To Digital Converters (ADC) Procurement Notes

Verify the S suffix indicates the extended temperature range (-55°C to +125°C) compared to commercial variants. Confirm package type availability, as the SQ designation corresponds to the CERDIP-24 package. Ensure compatibility with existing board layouts if replacing lower temperature grade parts.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring high accuracy over wide industrial temperature ranges. The extended temperature rating makes it suitable for harsh environments where standard commercial parts may fail. Consider the dual-supply capability if bipolar input signals are required without external level shifting.

Analog To Digital Converters (ADC) Part Context

The AD7710 series includes multiple temperature grades and packages. The AD7710AN and AD7710AR cover the commercial range (-40°C to +85°C). The AD7710AQ and AD7710SQ provide military-grade reliability and extended temperature coverage (-55°C to +125°C), with the SQ specifically utilizing the ceramic DIP package.

Analog To Digital Converters (ADC) Replacement Considerations

AD7710AQ serves as the primary functional equivalent within the same package family but may differ in specific manufacturing lot characteristics. Verify pinout compatibility when substituting.