Analog Devices Inc. AD8091ARZ-REEL7

Overview

AD8091ARZ-REEL7 from Analog Devices is a single, rail-to-rail output, voltage-feedback high-speed operational amplifier optimized for +3 V, +5 V, and ±5 V supplies. It delivers 110 MHz −3 dB bandwidth (G = +1), 145 V/μs slew rate, and 50 ns settling to 0.1%, enabling use in video line drivers, active filters, and clock buffers where low distortion and fast transient response are critical.

For engineers reviewing the AD8091ARZ-REEL7 datasheet, AD8091ARZ-REEL7 pinout, AD8091ARZ-REEL7 application, or AD8091ARZ-REEL7 equivalent, key selection criteria include its 25 mV rail-to-rail output swing, 4.4 mA quiescent current per amplifier, 50 pF capacitive load drive capability, and SOIC-8 package compatibility with space-constrained analog signal paths.

Technical Context

The AD8091ARZ-REEL7 employs a voltage-feedback architecture with fully differential input stage and Class AB output stage, supporting true single-supply operation down to +3 V. Its input common-mode range extends 200 mV below the negative rail and within 1 V of the positive rail, while output swings to within 25 mV of either supply rail under 2 kΩ load.

Designed for stability with gain ≥ +1, it achieves 50 ns settling time to 0.1% at G = −1 and maintains 0.1 dB gain flatness to 20 MHz (G = +2, RL = 150 Ω). The amplifier drives 45 mA output current and sustains stable operation into 50 pF capacitive loads without external compensation.

Key Specifications

Pinout & Package

AD8091ARZ-REEL7 is packaged in an 8-lead SOIC (SOIC-8, R-8) with standard pinout and no internal connections on pins 1 and 5 (NC). This RoHS-compliant, surface-mount package measures 4.9 mm × 3.9 mm × 1.5 mm and supports automated assembly.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed op amp applications.

Compared with LMH6629MA/NOPB and ADA4891-1ARJZ-R7, AD8091ARZ-REEL7 uniquely balances 110 MHz bandwidth, rail-to-rail output, 4.4 mA quiescent current, and ±5 V compatibility-making it optimal for cost-sensitive, mixed-supply video and timing applications where output swing and power efficiency are jointly constrained.

Availability

AD8091ARZ-REEL7 is available at Aetrix Electronics and suitable for coaxial cable drivers, active filters, and clock buffers requiring stable component supply across industrial, broadcast, and medical electronics programs.

Supply support for AD8091ARZ-REEL7 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving precision instrumentation, communications, and industrial markets since 1965.

The AD8091 forms part of Analog Devices' high-speed op amp product line, engineered specifically for video, imaging, and timing-critical signal conditioning where bandwidth, low distortion, and rail-to-rail output are simultaneously required.

FAQ

What supply voltages does the AD8091ARZ-REEL7 support?

The AD8091ARZ-REEL7 operates from +3 V to +12 V single supply, ±3 V to ±6 V dual supply, and is fully specified at +3 V, +5 V, and ±5 V. Its input common-mode range extends 200 mV below the negative rail and within 1 V of the positive rail, enabling robust interfacing with sensors and ADCs across these supply conditions. The AD8091ARZ-REEL7 maintains 110 MHz bandwidth and 145 V/μs slew rate across all supported supplies.

Does the AD8091ARZ-REEL7 require external compensation for stability?

No, the AD8091ARZ-REEL7 is unity-gain stable and does not require external compensation for gains ≥ +1. It remains stable driving 50 pF capacitive loads at G = +1 without added series resistance or feedback network modification. Layout best practices-such as placing 0.01 μF ceramic bypass capacitors within 1 mm of +VS and −VS pins-are sufficient to ensure stability in typical PCB environments.

What is the maximum output current capability of the AD8091ARZ-REEL7?

The AD8091ARZ-REEL7 delivers ±45 mA continuous output current into loads referenced to mid-supply, with peak sourcing capability of 80 mA and sinking capability of 130 mA under short-circuit conditions at +5 V supply. This enables direct driving of 75 Ω video lines, 150 Ω termination networks, and moderate-current active filter stages without external buffering. The AD8091ARZ-REEL7 maintains rail-to-rail swing even at 45 mA load.

Can the AD8091ARZ-REEL7 be used in single-supply composite video applications?

Yes, the AD8091ARZ-REEL7 is explicitly designed for single-supply composite video line driving, as confirmed by its 0.03% differential gain/phase error (NTSC, RL = 1 kΩ), 20 MHz 0.1 dB flatness, and ability to swing within 25 mV of both rails. Application circuits such as sync strippers and AC-coupled video buffers are documented in the datasheet, and the AD8091ARZ-REEL7 supports biasing schemes that maintain blanking-level integrity without dual supplies.

Is the AD8091ARZ-REEL7 pin-compatible with other packages of the AD8091 family?

No-the AD8091ARZ-REEL7 uses the SOIC-8 (R-8) package with NC pins at positions 1, 5, and 8. It is not pin-compatible with the SOT23-5 (RJ-5) variant (AD8091ARTZ-REEL7), which has only five pins and different pin assignments (VOUT, −VS, +IN, +VS, −IN). Board designs must match the specific package; migration between SOIC-8 and SOT23-5 requires PCB layout revision and signal re-routing.