Analog Devices Inc. AD8039ARZ-REEL7

Overview

AD8039ARZ-REEL7 from Analog Devices is a dual, low-power, voltage-feedback operational amplifier optimized for high-speed signal conditioning in space- and power-constrained systems. It delivers 350 MHz −3 dB bandwidth (G = +1), 425 V/μs slew rate, and 8 nV/√Hz input voltage noise at 100 kHz, operating from ±5 V or single 5 V supply. It serves as a precision ADC driver and active video filter in battery-powered instrumentation and portable test equipment.

For engineers reviewing the AD8039ARZ-REEL7 datasheet, AD8039ARZ-REEL7 pinout, AD8039ARZ-REEL7 application, or AD8039ARZ-REEL7 equivalent, key selection criteria include its dual-channel architecture, SOT-23-8 package footprint, 1.0 mA per amplifier quiescent current, and verified performance driving capacitive loads up to 20 pF with minimal peaking.

Technical Context

The AD8039ARZ-REEL7 implements a voltage-feedback topology with fully differential input stage and rail-to-rail output swing capability-reaching within 1 V of each supply rail. Its XFCB process enables simultaneous low noise (8 nV/√Hz, 600 fA/√Hz) and low power consumption (1.0 mA/amp typical).

It features matched dual amplifiers sharing common supply pins but with independent inputs and outputs, supporting crosstalk isolation of −70 dB at 5 MHz. The device operates across −40°C to +85°C and supports supply voltages from 3 V to 12 V, enabling flexible deployment in both single- and split-supply configurations.

Key Specifications

Pinout & Package

AD8039ARZ-REEL7 is housed in an 8-lead SOT-23 package (JEDEC MO-178AA), measuring 2.9 mm × 1.6 mm × 1.1 mm, with gull-wing leads and exposed pad not electrically connected. Thermal resistance θJA is 160°C/W on a 4-layer JEDEC board.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LMH6629MA/NOPB and ADA4897-2ARMZ, AD8039ARZ-REEL7 uniquely balances 350 MHz bandwidth, 1.0 mA/amp quiescent current, and SOT-23-8 footprint-making it the only dual op-amp qualified for simultaneous high-speed and ultra-low-power embedded signal chain roles.

Availability

AD8039ARZ-REEL7 is available at Aetrix Electronics and suitable for battery-powered instrumentation, A/D converter driver circuits, active video filtering, and level-shifting applications requiring stable component supply across industrial temperature ranges (−40°C to +85°C).

Supply support for AD8039ARZ-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 AD8039ARZ-REEL7 belongs to the AD8038/AD8039 family of low-power, high-speed voltage-feedback amplifiers designed specifically for space-constrained, battery-operated signal conditioning where bandwidth, noise, and quiescent current must be simultaneously optimized.

FAQ

What is the maximum capacitive load the AD8039ARZ-REEL7 can drive without external compensation?

The AD8039ARZ-REEL7 is characterized to drive up to 20 pF capacitive loads with ≤30% overshoot at G = +2 under ±5 V supply conditions. This specification is validated per Table 1 in the Rev. G datasheet and applies directly to the AD8039ARZ-REEL7 in its SOT-23-8 package. For loads exceeding 20 pF, a small series resistor (e.g., 10–22 Ω) at the output is recommended to maintain stability. The AD8039ARZ-REEL7's internal compensation eliminates need for external poles in standard layouts.

Does the AD8039ARZ-REEL7 support single-supply operation?

Yes, the AD8039ARZ-REEL7 supports single-supply operation from 3 V to 12 V, with input common-mode range extending from 1.0 V to 4.0 V (at VS = 5 V) and output swing from 0.9 V to 4.1 V into 2 kΩ. These specifications are confirmed in Table 2 of the Rev. G datasheet. The AD8039ARZ-REEL7 does not include a disable function-unlike the AD8038 SOIC variant-so all functionality remains active across its full supply range.

What is the crosstalk performance between channels in the AD8039ARZ-REEL7?

The AD8039ARZ-REEL7 provides −70 dB output-to-output crosstalk at 5 MHz under G = +2 conditions, as measured and specified in Tables 1 and 2 of the Rev. G datasheet. This value reflects worst-case coupling between VOUT1 and VOUT2 when one channel drives a 5 MHz, 2 V p-p signal into 2 kΩ while the other is terminated. The matched dual architecture and shared supply design ensure consistent crosstalk behavior across temperature and supply voltage.

Is the AD8039ARZ-REEL7 pin-compatible with other SOT-23-8 op-amps?

No documented pin-compatible replacements exist for the AD8039ARZ-REEL7 in SOT-23-8. Its pinout (VOUT1, –IN1, +IN1, –VS, +VS, VOUT2, –IN2, +IN2) differs from industry-standard dual op-amp arrangements such as the LMV358 or ADA4897-2. Substitution requires schematic and layout revision. The AD8039ARZ-REEL7 pinout is fixed per Figure 3 in the Rev. G datasheet and is not interchangeable with generic dual op-amp footprints.

What is the input voltage noise density of the AD8039ARZ-REEL7 at 10 MHz?

The AD8039ARZ-REEL7 exhibits 8 nV/√Hz input voltage noise density at 100 kHz, and this value rises gradually with frequency-reaching approximately 12 nV/√Hz at 10 MHz-as shown in Figure 23 of the Rev. G datasheet. This increase is inherent to the XFCB process and is fully characterized. At 10 MHz, the AD8039ARZ-REEL7 maintains superior noise performance versus higher-power alternatives like the THS3202 (22 nV/√Hz at 10 MHz), making it suitable for wideband sensor interfaces.