AD7890ARZ-10REEL

ADCs/DACs - Special Purpose Overview

The AD7890ARZ-10REEL is an 8-channel, 12-bit serial data acquisition system manufactured by Analog Devices Inc. It integrates an input multiplexer, a track/hold amplifier, a high-speed SAR ADC, and a 2.5 V reference on a single chip. Operating from a single 5 V supply, the AD7890-10 variant supports an analog input range of ±10 V. The device features a maximum conversion time of 5.9 μs and operates within a temperature range of -40°C to +85°C. Power consumption is typically 30 mW in normal mode and drops to 75 μW in standby. It utilizes a flexible high-speed serial interface for communication with microcontrollers and DSPs.

ADCs/DACs - Special Purpose Feature Summary

• Integrates 8 single-ended channels with a 12-bit SAR ADC and 2.5 V internal reference
• Supports ±10 V input range (AD7890-10) with separate access to the multiplexer output
• Features a high-speed bidirectional serial interface compatible with SPI/MICROWIRE protocols
• Operates on a single 5 V supply with typical power dissipation of 30 mW

ADCs/DACs - Special Purpose Applications

• Industrial process control systems requiring multi-channel signal acquisition
• Data logging equipment for monitoring multiple sensor inputs
• Automotive test and measurement instrumentation
• Medical instrumentation with multi-channel physiological signal monitoring

ADCs/DACs - Special Purpose Procurement Notes

Verify that the specific suffix '10' corresponds to the ±10 V input range variant required for the application. Confirm the REEL packaging designation matches automated assembly requirements. Ensure the A-version temperature rating (-40°C to +85°C) aligns with the operational environment. Check for RoHS compliance status as indicated in current distributor listings.

ADCs/DACs - Special Purpose Selection Notes

Select the AD7890ARZ-10 when eight single-ended channels with ±10 V input capability are needed. Choose this part over the AD7890-4 or AD7890-2 if bipolar input signals are present. Consider the external clocking mode if precise synchronization with a master processor clock is required. Verify that the serial interface timing meets the microcontroller's specifications.

ADCs/DACs - Special Purpose Part Context

The AD7890 belongs to Analog Devices' LC2MOS data acquisition family, combining precision bipolar circuits with low-power CMOS logic. The ARZ suffix indicates a lead-free, RoHS-compliant SOIC-24 package version. The REEL suffix denotes tape-and-reel packaging for surface-mount assembly. This component serves as a complete system-on-a-chip solution, reducing board space compared to discrete multiplexer and ADC combinations.

ADCs/DACs - Special Purpose Replacement Considerations

Publicly confirmed substitute part numbers for the AD7890ARZ-10REEL are not available in the provided documentation.