AD7793BRUZ-REEL

Overview

The AD7793BRUZ-REEL is a low power, low noise, complete analog front end for high precision measurement applications. It contains a low noise 24-bit Σ-Δ ADC with three differential analog inputs and an on-chip low noise programmable gain instrumentation amplifier. The device features a precision internal band gap reference with 4 ppm/°C drift typical, or accepts an external differential reference. Output data rates are software-programmable from 4.17 Hz to 470 Hz. It operates with a power supply from 2.7 V to 5.25 V, consuming 400 μA typical current. The part is housed in a 16-lead TSSOP package.

Feature Summary

• Integrated 24-bit Sigma-Delta ADC with three differential analog inputs
• On-chip low noise programmable gain instrumentation amplifier
• Internal band gap reference or external differential reference capability
• Software-programmable output update rates from 4.17 Hz to 470 Hz

Applications

• Thermocouple measurements
• RTD measurements
• Gas analysis
• Industrial process control
• Smart transmitters

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm packaging details. Ensure compatibility with system voltage requirements and interface protocols before procurement. Confirm that the component meets all necessary environmental specifications for the intended operating conditions.

Selection Notes

Select this component for applications requiring high precision analog signal conditioning. Consider the available gain settings and update rates to match sensor characteristics. Verify that the power supply range aligns with the system design. Evaluate the need for internal versus external references based on noise performance requirements.

Part Context

The AD7793 is part of the AD7792/AD7793 family from Analog Devices. These devices are designed as complete analog front ends for high precision measurement applications. The AD7793 specifically offers 24-bit resolution, while the AD7792 provides 16-bit resolution. Both share similar features including integrated amplifiers and references.

Replacement Considerations

The AD7792 is a compatible alternative within the same family offering 16-bit resolution. Verify pinout and register compatibility when substituting. Ensure that the reduced resolution of the AD7792 meets the application's accuracy requirements.