Analog Devices Inc. AD8032ARMZ-REEL

Overview

AD8032ARMZ-REEL from Analog Devices is a dual, rail-to-rail input/output voltage feedback operational amplifier optimized for high-speed, low-power applications. It delivers 80 MHz −3 dB bandwidth (G = +1), 30 V/μs slew rate, and 125 ns settling time to 0.1%, operating from a single 2.7 V supply with only 800 μA per amplifier quiescent current. It serves as an A/D converter buffer or active filter stage in portable test instruments and battery-powered systems.

For engineers reviewing the AD8032ARMZ-REEL datasheet, AD8032ARMZ-REEL pinout, AD8032ARMZ-REEL application, or AD8032ARMZ-REEL equivalent, key selection criteria include rail-to-rail I/O swing within 20 mV of rails, input common-mode range extending 200 mV beyond supplies, THD of −62 dBc at 1 MHz, and guaranteed operation across −40°C to +85°C industrial temperature range.

Technical Context

The AD8032ARMZ-REEL employs Analog Devices' eXtra Fast Complementary Bipolar (XFCB) process to achieve high speed with ultra-low power. Its input stage dynamically switches between PNP and NPN differential pairs to maintain transconductance and avoid phase reversal up to 500 mV beyond either rail.

The rail-to-rail output stage uses common-emitter transistors with ~25 Ω collector resistance, enabling 15 mA drive capability and output swing to within 20 mV of supplies under light load. Open-loop gain remains stable within 250 mV of V_S+ and 150 mV of V_S−, then decreases linearly as output transistors saturate.

Key Specifications

Pinout & Package

AD8032ARMZ-REEL is housed in an 8-lead MSOP (RM) package with exposed pad for thermal performance. Pin assignments are identical to the SOIC_N variant but in a 3 mm × 3 mm footprint.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual rail-to-rail op-amp applications.

Compared with LMH6612MM/NOPB and ADA4807-2ARMZ, AD8032ARMZ-REEL uniquely balances 80 MHz bandwidth, rail-to-rail I/O, and sub-mA quiescent current-making it optimal for portable instrumentation where power, size, and speed must coexist.

Availability

AD8032ARMZ-REEL is available at Aetrix Electronics and suitable for portable test instruments, battery-powered data loggers, and high-density sensor signal chains requiring stable component supply and long-term industrial temperature support.

Supply support for AD8032ARMZ-REEL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.

The AD803x family was designed specifically for high-speed, low-power signal conditioning in portable and space-constrained systems-emphasizing rail-to-rail operation, wide supply range (2.7 V to 12 V), and robust performance across industrial temperatures.

FAQ

What supply voltage range does the AD8032ARMZ-REEL support?

The AD8032ARMZ-REEL operates from a single 2.7 V to 12 V supply or dual ±1.35 V to ±6 V supplies. It is fully specified at +2.7 V, +5 V, and ±5 V, with guaranteed functionality across the full industrial temperature range (−40°C to +85°C). At 2.7 V, it maintains 80 MHz bandwidth and 30 V/μs slew rate while drawing only 800 μA per amplifier-enabling true low-voltage, high-speed operation not found in most general-purpose op-amps.

Does the AD8032ARMZ-REEL have rail-to-rail input capability?

Yes, the AD8032ARMZ-REEL features true rail-to-rail input with common-mode voltage range extending 200 mV beyond either supply rail-for example, −0.2 V to +5.2 V on a +5 V supply. This eliminates the need for external level-shifting components when interfacing with sensors or DACs that output near-rail signals. The input stage avoids phase reversal up to 500 mV beyond the rails, ensuring reliable operation even during transient overdrive conditions.

What is the maximum output current drive capability of the AD8032ARMZ-REEL?

The AD8032ARMZ-REEL delivers ±15 mA output current per amplifier into resistive loads. Short-circuit current is +28 mA (sourcing) and −46 mA (sinking) under +5 V supply. Output swing degrades linearly with load: at RL = 1 kΩ, it swings to within 0.1 V of each rail; at RL = 10 kΩ, it reaches within 20 mV. This makes AD8032ARMZ-REEL suitable for driving ADC inputs, small capacitive loads (<15 pF), and moderate-impedance active filters without external buffers.

How does the AD8032ARMZ-REEL perform in THD-critical applications like ADC buffering?

The AD8032ARMZ-REEL achieves −62 dBc THD at 1 MHz (2 V_p-p) and −86 dBc at 100 kHz (4.6 V_p-p) on +5 V supply-performance validated across temperature and supply variations. Its low distortion stems from XFCB process optimization and balanced input stage design. When used as an ADC driver, this ensures minimal harmonic contamination of sampled waveforms, supporting effective number of bits (ENOB) >10 in 1 MSPS data acquisition systems.

Is the AD8032ARMZ-REEL pin-compatible with other packages in the AD803x family?

The AD8032ARMZ-REEL (MSOP-8) shares identical pinout with the AD8032ARZ (SOIC-8) and AD8032ANZ (PDIP-8), allowing direct PCB footprint reuse across package variants. All three use the same 1–8 pin numbering: OUT1, −IN1, +IN1, −VS, +IN2, −IN2, OUT2, +VS. This simplifies design flexibility and second-source qualification-though thermal and high-frequency layout considerations differ due to MSOP's smaller size and exposed pad.