AD7730BRUZ-REEL7

Overview

The AD7730BRUZ-REEL7 is a complete analog front end for weigh-scale and pressure measurement applications, housed in a 24-lead TSSOP package. It features two buffered differential programmable gain inputs with ranges from ±10 mV to ±80 mV. The device provides 24-bit resolution with no missing codes and achieves a peak-to-peak resolution of 230,000 counts. Key static performance parameters include an offset drift of 5 nV/°C, a gain drift of 2 ppm/°C, and integral nonlinearity of 18 ppm of FSR. It operates on a single +5 V supply and includes an on-chip 6-bit DAC for offset removal.

Feature Summary

• Two-channel programmable gain front end with buffered differential inputs
• On-chip 6-bit DAC for offset and tare voltage removal
• FASTStep mode for rapid settling during step input changes
• AC or DC excitation capabilities with line frequency rejection >150 dB

Applications

• Weigh scales
• Pressure measurement

Procurement Notes

Verify the component matches the Analog Devices AD7730 specification sheet. Confirm the suffix REEL7 indicates tape-and-reel packaging. Ensure the B version meets the -40°C to +85°C industrial temperature range requirements. Check for RoHS compliance status as indicated in the datasheet.

Selection Notes

Select this component when high precision is required for bridge transducer signals. The 230,000 count resolution suits applications demanding low noise. Consider the FASTStep feature if fast response times are necessary. Verify that the single +5 V supply constraint fits the system power architecture.

Part Context

This part belongs to the AD7730 family of bridge transducer ADCs. It is designed specifically for interfacing directly with low-level transducer signals. The BRUZ suffix denotes the plastic TSSOP-24 package variant. The REEL7 suffix specifies the reel packaging format for automated assembly.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.