AD7890BRZ-10

ADCs/DACs - Special Purpose Overview

The AD7890BRZ-10 is an 8-channel, 12-bit serial data acquisition system manufactured by Analog Devices. It integrates a multiplexer, track/hold amplifier, ADC, and 2.5 V reference on a single chip. Operating from a single 5 V supply, it supports a ±10 V analog input range with a maximum conversion time of 5.9 μs. The device features a high-speed bidirectional serial interface and operates within a temperature range of -40°C to +85°C. Typical power dissipation in normal mode is 30 mW, with a standby mode consuming 75 μW.

ADCs/DACs - Special Purpose Feature Summary

• Integrated 8-channel multiplexer with separate access for external antialiasing filtering
• 12-bit resolution with ±1 LSB relative accuracy and 5.9 μs conversion time
• High-speed serial interface compatible with microcontrollers and DSPs
• On-chip 2.5 V reference with option for external reference input

ADCs/DACs - Special Purpose Applications

• Industrial process control systems requiring multi-channel signal acquisition
• Data acquisition modules for monitoring sensor arrays
• Embedded measurement systems interfacing with digital signal processors

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix 'BRZ' against official documentation to confirm package type (SOIC) and lead-free status. Confirm that the '-10' designation corresponds to the ±10 V input range variant. Check current availability as distribution status may vary.

ADCs/DACs - Special Purpose Selection Notes

Select this component when an integrated solution for 8-channel acquisition is required. Ensure the ±10 V input range matches the signal source. Verify that the serial interface timing requirements align with the host processor's capabilities. Consider the SOIC package dimensions for PCB layout constraints.

ADCs/DACs - Special Purpose Part Context

The AD7890 series includes variants with different input ranges (-2 for 0-2.5 V, -4 for 0-4.096 V, and -10 for ±10 V). The 'B' version typically denotes a commercial temperature range (-40°C to +85°C), while 'S' denotes extended range. The 'Z' suffix indicates RoHS compliance.

ADCs/DACs - Special Purpose Replacement Considerations

Direct pin-compatible replacements within the same family include AD7890ARZ-10 (SOIC package) or AD7890ANZ-10 (PDIP package). Verify that any substitute maintains the same input voltage range and serial interface protocol.