AD8031BN

Instrumentation, Op Amps, Buffer Amps Overview

The AD8031BNZ is a single-channel, low-power, voltage feedback operational amplifier manufactured by Analog Devices. It features an 80 MHz small-signal bandwidth and a 30 V/µs slew rate while consuming only 800 µA of supply current per amplifier. The device supports rail-to-rail input and output operation with a supply voltage range from +2.7 V to +12 V (single) or ±1.35 V to ±6 V (dual). Key electrical specifications include a maximum input offset voltage of 1.5 mV for the high-grade option, 15 nV/√Hz input voltage noise density, and an output current capability of 15 mA.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Rail-to-rail input and output stages maximize dynamic range on both inputs and outputs.
• High-speed performance with 80 MHz bandwidth and fast settling time suitable for demanding applications.
• Low power consumption of 800 µA per amplifier enables extended battery life in portable systems.
• Input common-mode voltage range extends beyond the supply rails without phase reversal.

Instrumentation, Op Amps, Buffer Amps Applications

• High speed, battery-operated systems
• Portable test instruments
• A/D buffers
• Active filters
• High speed, set-and-demand amplifiers

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'BN' against the manufacturer's official ordering guide to confirm package type and grade. Ensure the component matches the required industrial temperature range and pinout configuration for your PCB design. Cross-reference the datasheet revision to confirm all electrical parameters align with your system requirements before finalizing procurement.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this amplifier when high bandwidth and low power consumption are critical constraints. The rail-to-rail I/O capability makes it suitable for single-supply designs requiring maximum signal swing. Consider the 15 mA output drive and capacitive load driving capabilities if interfacing with transmission lines or heavy loads. Verify that the input bias current and offset voltage meet the precision requirements of the application.

Instrumentation, Op Amps, Buffer Amps Part Context

The AD8031 is part of the AD8031/AD8032 family of single-supply, voltage feedback amplifiers. The AD8031 denotes the single-channel version, while the AD8032 is the dual-channel variant. Both share identical electrical characteristics and are fabricated on Analog Devices' XFCB process to achieve high speed at low power levels.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Direct functional substitutes within the same family include the AD8032 for dual-channel applications. Other packages such as SOIC_N (R) or MSOP (RM) may be available depending on the specific grade (A or B) required. Consult the manufacturer's ordering guide for equivalent part numbers with different packaging options.