Analog Devices Inc. AD8674ARZ-REEL7

Overview

AD8674ARZ-REEL7 from Analog Devices is a precision quad operational amplifier optimized for low-noise, high-accuracy signal conditioning in instrumentation and sensor interfaces. It delivers 2.8 nV/√Hz voltage noise density, 10 MHz gain bandwidth, ≤75 µV max offset voltage, ≤12 nA max input bias current, and operates from ±5 V to ±15 V dual supplies. It is used in GPS receiver filters and professional audio preamplifiers where ultralow noise and DC precision are critical.

For engineers reviewing the AD8674ARZ-REEL7 datasheet, AD8674ARZ-REEL7 pinout, AD8674ARZ-REEL7 application, or AD8674ARZ-REEL7 equivalent, key selection criteria include verified 14-lead SOIC_N package compatibility, confirmed −40°C to +85°C industrial temperature range operation, channel separation ≥−130 dB at 1 kHz, and guaranteed no phase reversal beyond supply rails.

Technical Context

The AD8674ARZ-REEL7 employs a bipolar input stage enabling ultralow voltage noise (2.8 nV/√Hz) and high open-loop gain (≥120 dB), while maintaining low input bias current (≤12 nA) via guarded input design. Its unity-gain stability and ability to drive >1000 pF capacitive loads without external compensation support robust filter and buffer implementations.

It features rail-to-rail output swing capability (±3.8 V min into 2 kΩ at ±5 V), high PSRR (106 dB min), and CMRR (100 dB min), making it suitable for precision DC-coupled measurement paths where common-mode rejection and power supply immunity directly impact accuracy.

Key Specifications

Pinout & Package

AD8674ARZ-REEL7 is housed in a 14-lead SOIC_N (R-14) package per JEDEC MS-012-AB, with 1.27 mm pitch, 8.75 mm × 4.00 mm body size, and exposed pad not present. Pin 1 identifier is a beveled corner.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar precision op amp applications.

Compared with AD8674ARZ-REEL7, OP4177ARZ trades bandwidth for drift stability while ADA4004-4ARZ extends temperature range at the expense of voltage noise - both require revalidation of loop filter component values and thermal derating in high-density PCB layouts.

Availability

AD8674ARZ-REEL7 is available at Aetrix Electronics and suitable for GPS receiver design, medical instrumentation, professional audio equipment, and high-precision data acquisition systems requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for AD8674ARZ-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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.

The AD867x family was designed specifically for precision, low-noise signal conditioning in instrumentation, medical, and communications systems where DC accuracy and wideband noise performance are simultaneously required.

FAQ

What is the maximum capacitive load the AD8674ARZ-REEL7 can drive stably in unity-gain configuration?

The AD8674ARZ-REEL7 is specified to drive capacitive loads exceeding 1000 pF without external compensation in unity-gain configuration. This capability eliminates the need for series isolation resistors in anti-aliasing or reconstruction filter outputs, preserving signal integrity in precision data converters. Stability is verified per Figure 34 in the Rev. F datasheet using ±15 V supplies and 2 kΩ load.

Does the AD8674ARZ-REEL7 exhibit phase reversal when input voltages exceed the supply rails?

No, the AD8674ARZ-REEL7 does not exhibit phase reversal even when input voltages exceed the supply rails by up to 1 V. This behavior is confirmed in Figure 31 of the Rev. F datasheet and eliminates risk of latch-up or erroneous output states during transient overvoltage events in sensor front-ends or industrial I/O protection circuits.

What is the guaranteed input offset voltage specification for AD8674ARZ-REEL7 over temperature?

The AD8674ARZ-REEL7 guarantees a maximum input offset voltage of 125 µV over the full industrial temperature range of −40°C to +85°C. At 25°C, the limit is tighter at 75 µV max. This specification is validated per Table 2 and Table 3 in the Rev. F datasheet under both ±5 V and ±15 V supply conditions.

Can AD8674ARZ-REEL7 operate from a single +10 V supply?

No, the AD8674ARZ-REEL7 is specified only for dual-supply operation from ±5 V to ±15 V. It is not characterized for single-supply use, and the input common-mode range does not extend to the negative rail when operated with a single positive supply. For single-supply applications, consider the AD8605 or ADA4661-2 families instead.

What package type and lead count does AD8674ARZ-REEL7 use?

The AD8674ARZ-REEL7 uses a 14-lead SOIC_N (narrow-body) package compliant with JEDEC MS-012-AB, with 1.27 mm lead pitch and dimensions of 8.75 mm × 4.00 mm. The "ARZ" suffix explicitly denotes this SOIC_N variant, and "REEL7" indicates tape-and-reel packaging with 1000-unit reels.