AD7798BRUZ-REEL

Overview

The AD7798BRUZ-REEL is a low-power, low-noise analog front end featuring a 16-bit Sigma-Delta ADC with three differential inputs. It integrates a programmable gain instrumentation amplifier and operates on a 2.7 V to 5.25 V supply. The device supports update rates from 4.17 Hz to 470 Hz and includes an internal clock oscillator. Key specifications include ±15 ppm integral nonlinearity, ±1 µV typical offset error, and 300 µA typical current consumption. It provides simultaneous 50 Hz/60 Hz rejection and features a low-side power switch.

Feature Summary

• Integrates a low-noise, programmable gain instrumentation amplifier for direct small-signal interfacing
• Includes on-chip reference detect, burnout currents, and programmable digital output pins
• Supports independent interface power supply for flexible logic level compatibility
• Features Schmitt-triggered serial clock input suitable for opto-isolated applications

Applications

• Weigh scales
• Pressure measurement
• Strain gauge transducers
• Industrial process control
• Portable instrumentation

Procurement Notes

Verify the specific ordering suffix against official Analog Devices documentation to confirm package type and reel specifications. Ensure that the procurement channel sources components directly from authorized distributors or the manufacturer to guarantee authenticity and traceability. Cross-reference the part number with the latest datasheet revision to confirm compliance with RoHS standards and environmental regulations.

Selection Notes

Select this component when a complete analog front end with integrated amplification and filtering is required. The AD7798 offers 16-bit resolution, which differs from the 24-bit AD7799; choose based on the necessary noise performance and effective resolution for the application. Verify that the 3-channel multiplexer configuration aligns with the system's input requirements.

Part Context

This component belongs to the AD7798/AD7799 family of precision analog-to-digital converters manufactured by Analog Devices Inc. Both devices share identical pinouts and functional blocks, differing primarily in ADC resolution. The BRU designation indicates the commercial temperature range and TSSOP-16 packaging.

Replacement Considerations

The AD7799BRUZ-REEL serves as a higher-resolution alternative within the same package and pinout configuration.