AD7890BRZ-2REEL

ADCs/DACs - Special Purpose Overview

The AD7890BRZ-2REEL is an 8-channel, 12-bit data acquisition system fabricated in LC2MOS technology. It integrates a multiplexer, track/hold amplifier, SAR ADC, and 2.5 V reference on a single chip. Operating from a single 5 V supply, it supports a unipolar input range of 0 V to 2.5 V. The device features a high-speed serial interface with a maximum conversion time of 5.9 μs. It operates within a commercial temperature range of -40°C to +85°C and consumes a typical power of 30 mW.

ADCs/DACs - Special Purpose Feature Summary

• Integrated 8-channel multiplexer with separate MUX OUT access for external antialiasing filtering
• High-speed serial interface supporting self-clocking (master) and external clocking (slave) modes
• On-chip 2.5 V voltage reference with external reference input capability
• Low-power operation: 30 mW typical in normal mode, 75 μW typical in standby

ADCs/DACs - Special Purpose Applications

• Industrial process control systems requiring multi-channel signal acquisition
• Data acquisition modules interfacing with microcontrollers or DSPs
• Battery-powered instrumentation utilizing low standby current
• Automotive sensor interfaces operating within extended temperature ranges

ADCs/DACs - Special Purpose Procurement Notes

Verify the suffix '2' confirms the 0 V to 2.5 V input voltage range specification. Confirm the 'BRZ' designation indicates the SOIC_W package variant and RoHS compliance status. Ensure the 'REEL' suffix matches the required tape-and-reel packaging quantity for surface-mount assembly processes.

ADCs/DACs - Special Purpose Selection Notes

Select this component when an 8-channel multiplexed input is required with a unipolar 0 V to 2.5 V signal range. The B-version guarantees ±0.5 LSB relative accuracy, superior to the A/S versions. Choose this part over the AD7890-10 or AD7890-4 if bipolar or higher voltage unipolar inputs are not needed.

ADCs/DACs - Special Purpose Part Context

This part belongs to the AD7890 family of monolithic data acquisition systems. The BRZ-2REEL variant specifically denotes the industrial-grade B-version silicon housed in a 24-lead SOIC_W package, configured for the lowest voltage input range (0 V to 2.5 V), and supplied in reel format for automated placement.

ADCs/DACs - Special Purpose Replacement Considerations

The AD7890BR-2REEL is the non-RoHS equivalent of this component. For pin-compatible upgrades, consider the AD7892 series for reduced channel counts or the AD7891 for different performance profiles.