ADR827BRMZ-REEL7

Overview

The ADR827BRMZ-REEL7 is a low-power precision integrated circuit combining a voltage reference and an operational amplifier in a 10-lead MSOP package. The reference provides a fixed output of 1.25 V with ±0.2% initial accuracy and a maximum temperature coefficient of 15 ppm/°C. It operates from a supply range of 2.7 V to 15 V, drawing less than 400 μA. The op amp supports single or dual supplies (±2.7 V to ±15 V), featuring rail-to-rail input/output, a maximum offset voltage of 500 μV, and unity gain stability.

Feature Summary

• Integrates a precision voltage reference and a rail-to-rail operational amplifier within a compact 10-lead MSOP package.
• Features on-board precision resistors for flexible configuration and independent operation of both functional blocks.
• Provides high accuracy with ±0.2% initial tolerance and low temperature drift of 15 ppm/°C for the reference section.
• Operates with ultra-low combined supply current of less than 400 μA across a wide industrial temperature range.

Applications

• Battery-powered instrumentation
• Portable medical instrumentation
• Data acquisition systems
• Industrial process controls
• Automotive applications

Procurement Notes

Verify the specific suffix REEL7 indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status as indicated by the Z suffix in the ordering guide. Ensure the B grade designation matches the required ±0.2% accuracy and 15 ppm/°C drift specifications for your design. Cross-reference pinout requirements against the 10-lead MSOP outline dimensions during PCB layout.

Selection Notes

Select this component when a single-supply or dual-supply application requires both a stable reference voltage and signal amplification in a minimal footprint. The B-grade variant is suitable for designs demanding tighter initial accuracy and lower temperature drift compared to the A-grade version. Consider the 1.25 V output level and the internal resistor matching if generating multiple voltages using the integrated amplifier.

Part Context

This device belongs to the ADR82x family, which pairs a precision reference with an op amp. The ADR827 specifically offers a 1.25 V reference output, whereas the ADR821 provides 2.5 V. Both share identical amplifier characteristics and packaging. The BRMZ suffix denotes the B-grade accuracy level and surface-mount MSOP packaging.

Replacement Considerations

ADR821BRMZ-REEL7

FAQ

Can the reference and amplifier sections operate independently?

Yes, the datasheet states that the reference and the op amp can be operated independently, offering flexibility in circuit arrangement.

What is the maximum input offset voltage for the amplifier section?

The maximum input offset voltage is 500 μV over the full operating temperature range of −40°C to +125°C.