Analog Devices Inc. AD8058ARZ

Overview

AD8058ARZ from Analog Devices is a dual, voltage-feedback operational amplifier optimized for high-speed, low-noise signal conditioning in video and data acquisition systems. It delivers 325 MHz −3 dB bandwidth (G = +1), 1000 V/μs slew rate, and 7 nV/√Hz input voltage noise at ±5 V supply, enabling high-fidelity analog-to-digital driver and photodiode preamplifier applications.

For engineers reviewing the AD8058ARZ datasheet, AD8058ARZ pinout, AD8058ARZ application, or AD8058ARZ equivalent, key selection criteria include its dual-channel SOIC-8 package, rail-to-rail output swing capability (±3.9 V into 150 Ω), differential gain error of 0.01% (NTSC, RL = 150 Ω), and compatibility with single-supply (3–12 V) or split-supply (±1.5–±6 V) operation.

Technical Context

The AD8058ARZ implements a voltage-feedback architecture with unity-gain-stable design, achieving bandwidth and slew rate performance typical of current-feedback amplifiers while retaining DC precision. Its input stage features 10 MΩ input resistance and 2 pF +input capacitance, supporting stable operation with capacitive loads up to 30 pF without external compensation.

Internally compensated for G ≥ +1, it maintains 0.1 dB flatness to 30 MHz and −85 dBc THD at 5 MHz (RL = 1 kΩ). The dual amplifier shares a common ±VS supply but exhibits −60 dB crosstalk between outputs at 5 MHz, ensuring channel isolation in differential signaling and imaging front-ends.

Key Specifications

Pinout & Package

AD8058ARZ is packaged in an 8-lead SOIC_N (R-8) compliant with JEDEC MS-012-AA, measuring 5.00 mm × 3.96 mm × 1.75 mm with 1.27 mm lead pitch and gull-wing leads.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD8058ARMZ, AD8058ARZ offers superior thermal dissipation in standard SOIC layouts; versus LMH6629MA/NOPB, it provides 2.3× lower quiescent power at the cost of 3.2× higher input noise - making AD8058ARZ the optimal balance for cost-sensitive, thermally robust video and imaging designs.

Availability

AD8058ARZ is available at Aetrix Electronics and suitable for imaging signal chains, analog-to-digital converter drivers, professional video filtering, and photodiode pre-amplification requiring stable component supply across industrial temperature ranges and long production lifecycles.

Supply support for AD8058ARZ 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, with R&D and manufacturing operations worldwide.

The AD8058ARZ belongs to Analog Devices' high-speed op amp product line, engineered specifically for video, imaging, and data acquisition systems demanding wide bandwidth, low distortion, and robust DC precision in compact packages.

FAQ

What supply voltage range does the AD8058ARZ support?

The AD8058ARZ operates from a single 3 V to 12 V supply or dual ±1.5 V to ±6 V supplies. At ±5 V, it delivers full 325 MHz bandwidth and 1000 V/μs slew rate; at +5 V single supply, bandwidth reduces to 300 MHz but retains 0.1 dB flatness to 28 MHz. The device's input common-mode range extends to within 1 V of each rail, and output swing reaches ±3.9 V into 150 Ω - making AD8058ARZ compatible with both legacy ±5 V and modern 3.3 V/5 V systems.

Can the AD8058ARZ drive 75 Ω video loads directly?

Yes, the AD8058ARZ can drive 75 Ω video loads directly. Its output voltage swing is specified as ±3.9 V into 150 Ω, which translates to ~±2.0 V into 75 Ω under matched conditions. With proper termination and layout - including 0.1 µF + 10 µF local bypassing and minimized inverting-input capacitance - AD8058ARZ maintains <0.02% differential phase error and 0.05% gain error at NTSC frequencies, meeting broadcast video standards without external level-shifting or buffering stages.

What is the maximum capacitive load the AD8058ARZ can drive without instability?

The AD8058ARZ is characterized for stable operation with up to 30 pF capacitive load at unity gain, producing ≤30% overshoot in step response. For closed-loop gains ≥+2, stability extends to 69 pF (per Figure 43). Driving larger capacitive loads requires series output resistance: Table 4 specifies RS = 2.4 Ω enables stable operation with 69 pF at G = +2. Exceeding these limits without compensation causes peaking and potential oscillation - always verify pulse response with actual load in final AD8058ARZ layout.

How does the AD8058ARZ perform in differential ADC driver configurations?

In differential ADC driver circuits (e.g., for AD9225), the AD8058ARZ delivers matched +2/−1 gain paths with 30 ns settling to 0.1%, enabling accurate sampling at 25 MSPS. Its low 0.7 pA/√Hz input current noise and 7 nV/√Hz voltage noise minimize SNR degradation, while −60 dB output-to-output crosstalk prevents channel coupling. The AD8058ARZ's ability to bias outputs at midsupply (2.5 V) using internal 1.25 V reference division makes it ideal for dc-coupled, single-supply ADC interfaces - a key advantage over older op amps requiring >2 V headroom.

Is the AD8058ARZ RoHS compliant and what is its packaging format?

Yes, the AD8058ARZ is RoHS compliant (indicated by the "Z" suffix) and supplied in an 8-lead SOIC_N (R-8) package per JEDEC MS-012-AA. Dimensions are 5.00 mm × 3.96 mm × 1.75 mm with 1.27 mm lead pitch. The device is rated for −40°C to +85°C operation and shipped in 7" tape-and-reel (AD8058ARZ-REEL7) or tube formats. Lead finish is matte tin, and moisture sensitivity level is MSL-1 - no bake required prior to reflow.