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Home > Products > Integrated Circuits (ICs) > Linear > Video Amps and Modules

Analog Devices Inc. AD829AR-REEL

Name: AD829AR-REEL
Brand: Analog Devices Inc.
SKU: AD829AR-REEL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AD829AR-REEL

Manufacturer:: Analog Devices Inc.

Category:: Video Amps and Modules

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: AD829AR-REEL.pdf

Description:: IC AMP VOLTAGE FEEDBACK 8SOIC

Quantity:: RFQ Add To RFQ list

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Product details

Overview

AD829AR-REEL from Analog Devices is a high-speed, low-noise voltage feedback operational amplifier optimized for professional video line driving and high-fidelity signal conditioning. It delivers 230 V/µs slew rate, 750 MHz gain bandwidth (±15 V), 0.02% differential gain error, and 0.04° differential phase error at 4.43 MHz - enabling precision NTSC/PAL/SECAM video transmission over reverse-terminated 75 Ω cables.

For engineers reviewing the AD829AR-REEL datasheet, AD829AR-REEL pinout, AD829AR-REEL application, or AD829AR-REEL equivalent, key selection criteria include its externally compensated architecture for gain-bandwidth optimization (1–20), ±5 V to ±15 V dual-supply flexibility, 1.7 nV/√Hz input voltage noise, and SOIC-8 packaging suitable for space-constrained video interface PCBs.

Technical Context

The AD829AR-REEL employs Analog Devices' complementary bipolar (CB) process with matched NPN/PNP transistors (f_T ≈ 600 MHz), enabling both high slew rate and low noise. Its external compensation pin (Pin 5) allows configurable stability across gains 1–20 via shunt or current-feedback topologies - supporting bandwidth >50 MHz with <1 dB peaking.

It operates as a traditional voltage feedback amplifier but achieves transimpedance-like versatility: unity-gain stable with 68 pF compensation, yet supports current-feedback configurations yielding constant bandwidth across inverting gains −1 to −4. Input stage biasing ensures 0.3 µV/°C offset drift and laser-trimmed 1 mV max input offset voltage over temperature.

Key Specifications

Parameter	Value and Actual Design Meaning
Gain Bandwidth Product	750 MHz at ±15 V - enables stable closed-loop operation up to 95 MHz in gain-of-2 video line driver configuration.
Slew Rate	230 V/µs into 1 kΩ - supports full-scale 10 V step settling in 90 ns to 0.1%, critical for 10-bit ADC buffering.
Differential Gain Error	0.02% at 4.43 MHz - meets broadcast-grade video fidelity requirements for PAL/SECAM color subcarrier transmission.
Input Voltage Noise	1.7 nV/√Hz at 1 kHz - preserves SNR in low-level analog front-ends such as CCD sensor interfaces.
Supply Range	±4.5 V to ±18 V - supports industrial ±5 V and professional video ±12 V/±15 V rails without derating.
Open-Loop Gain	≥30 V/mV into 500 Ω - ensures <0.01% gain error in precision instrumentation amplifier front-ends.
CMRR / PSRR	120 dB - rejects common-mode interference and supply ripple in noisy mixed-signal environments.

Pinout & Package

AD829AR-REEL is housed in an 8-lead SOIC (R) package (5.3 mm × 6.2 mm, 1.27 mm pitch), rated for −40°C to +125°C operation and compliant with EIA-481A tape-and-reel standards.

Pin/Terminal	Circuit Role	Design Meaning
1, 8	Offset Null	Laser-trimmable pins for external nulling potentiometer (20 kΩ); essential for dc-coupled video or precision instrumentation.
2	Inverting Input (−IN)	Differential input node; symmetrical with Pin 3; accepts shunt or current-feedback compensation networks.
3	Noninverting Input (+IN)	Differential input node; matched impedance and capacitance (5 pF diff, 1.5 pF cm) to Pin 2 for balanced video drive.
4	Negative Supply (−VS)	Connects to negative rail; internal substrate tied to +VS (Pin 7) - requires clean, low-impedance return path.
5	Compensation (CCOMP)	External frequency compensation node; 68 pF to ground yields unity-gain stability; 0 pF enables 20× gain with 55 MHz BW.
6	Output	Capable of ±12.2 V swing into 500 Ω at ±15 V; clamps internally during overload; drives 75 Ω back-terminated cables directly.
7	Positive Supply (+VS)	Connects to positive rail; substrate connection point - must be decoupled with 0.1 µF ceramic close to Pin 7.

Key Features

Feature	Design Value
Externally compensatable architecture	Enables bandwidth/slew trade-off tuning across gains 1–20 - e.g., 95 MHz BW at gain 2 with 1 dB peaking, or 55 MHz at gain 20 with no peaking.
Low differential phase/gain error	0.04°/0.02% at 4.43 MHz - eliminates color distortion in PAL/SECAM broadcast systems driving 75 Ω coaxial lines.
High output drive capability	±3.0 V into 150 Ω at ±5 V; ±12.2 V into 500 Ω at ±15 V - eliminates need for external buffer stages in video line drivers.
Low input current noise	1.5 pA/√Hz - <10% of typical transimpedance amplifiers, making it superior for high-Z sensor interfaces where current noise dominates.
Flexible supply operation	Fully specified from ±5 V to ±15 V - supports legacy ±12 V video gear and modern low-voltage embedded systems without performance loss.

Applications

Professional Video Line Driver	High-Speed Data Acquisition Front-End
Use Scenario: Driving reverse-terminated 75 Ω coaxial cable in broadcast camera heads or video switchers delivering NTSC/PAL composite signals. IC Role / Device Role / Timing Role: Unity-gain or gain-of-2 voltage follower with external CCOMP = 30 pF, configured for flat 0.1 dB response to 30 MHz. Use Value: Eliminates color burst distortion (0.02% gain / 0.04° phase error) while sustaining 1 V_p-p output into 75 Ω without AC coupling or level-shifting.	Use Scenario: Buffering analog inputs to 10-bit, 50 MSPS ADCs in medical ultrasound or radar receivers requiring fast settling and low noise. IC Role / Device Role / Timing Role: Input sample-and-hold buffer with gain-of-1 configuration, leveraging 90 ns to 0.1% settling and 1.7 nV/√Hz noise floor. Use Value: Preserves ENOB by minimizing aperture uncertainty and thermal noise contribution before digitization.
High-Gain Instrumentation Amplifier Core	High-Fidelity DAC Output Stage
Use Scenario: First-stage gain element in a three-op-amp instrumentation amplifier for strain gauge or RTD signal conditioning in industrial PLCs. IC Role / Device Role / Timing Role: Differential-input, high-CMRR (120 dB) core amplifier with external gain-setting resistors and CCOMP = 0 pF for 55 MHz bandwidth at G = 20. Use Value: Enables >100 kHz measurement bandwidth with <0.001% nonlinearity, avoiding aliasing in oversampled systems.	Use Scenario: I/V conversion and output amplification for high-speed current-output DACs (e.g., AD976x) in waveform generators or optical modulator drivers. IC Role / Device Role / Timing Role: Inverting transimpedance stage with RF = 1 kΩ and CCOMP = 15 pF, operating in current-feedback mode for constant 10 MHz bandwidth. Use Value: Delivers 60+ V/µs slew rate and <1% overshoot on 10 V step outputs - critical for glitch-free arbitrary waveform synthesis.

Professional Video Line Driver

High-Speed Data Acquisition Front-End

Use Scenario: Driving reverse-terminated 75 Ω coaxial cable in broadcast camera heads or video switchers delivering NTSC/PAL composite signals.

IC Role / Device Role / Timing Role: Unity-gain or gain-of-2 voltage follower with external CCOMP = 30 pF, configured for flat 0.1 dB response to 30 MHz.

Use Value: Eliminates color burst distortion (0.02% gain / 0.04° phase error) while sustaining 1 V_p-p output into 75 Ω without AC coupling or level-shifting.

Use Scenario: Buffering analog inputs to 10-bit, 50 MSPS ADCs in medical ultrasound or radar receivers requiring fast settling and low noise.

IC Role / Device Role / Timing Role: Input sample-and-hold buffer with gain-of-1 configuration, leveraging 90 ns to 0.1% settling and 1.7 nV/√Hz noise floor.

Use Value: Preserves ENOB by minimizing aperture uncertainty and thermal noise contribution before digitization.

High-Gain Instrumentation Amplifier Core

High-Fidelity DAC Output Stage

Use Scenario: First-stage gain element in a three-op-amp instrumentation amplifier for strain gauge or RTD signal conditioning in industrial PLCs.

IC Role / Device Role / Timing Role: Differential-input, high-CMRR (120 dB) core amplifier with external gain-setting resistors and CCOMP = 0 pF for 55 MHz bandwidth at G = 20.

Use Value: Enables >100 kHz measurement bandwidth with <0.001% nonlinearity, avoiding aliasing in oversampled systems.

Use Scenario: I/V conversion and output amplification for high-speed current-output DACs (e.g., AD976x) in waveform generators or optical modulator drivers.

IC Role / Device Role / Timing Role: Inverting transimpedance stage with RF = 1 kΩ and CCOMP = 15 pF, operating in current-feedback mode for constant 10 MHz bandwidth.

Use Value: Delivers 60+ V/µs slew rate and <1% overshoot on 10 V step outputs - critical for glitch-free arbitrary waveform synthesis.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
THS3201DR	Higher slew rate (4700 V/µs) but 4.5 nV/√Hz noise; fixed internal compensation; no offset null pins.	Better for pulse amplification; unsuitable for precision video due to higher differential gain error (>0.1%).	Select THS3201DR only when ultrafast transient response outweighs video fidelity and dc precision needs.
LMH6629MA/NOPB	Lower noise (0.94 nV/√Hz), similar 230 V/µs slew, but no external compensation pin; limited to gains ≥5 for stability.	Superior for low-noise preamp stages; cannot replicate AD829AR-REEL's gain-flexible video line driving capability.	Choose LMH6629MA/NOPB for sensor front-ends where noise dominates, not for configurable video gain blocks.

Compared with THS3201DR and LMH6629MA/NOPB, the AD829AR-REEL uniquely balances ultra-low video distortion, externally adjustable bandwidth, and precision dc performance - making it irreplaceable in broadcast-grade line drivers and gain-flexible instrumentation front-ends.

Availability

AD829AR-REEL is available at Aetrix Electronics and suitable for professional video equipment, high-speed data acquisition systems, and industrial instrumentation requiring stable component supply across extended temperature ranges (−40°C to +125°C).

Supply support for AD829AR-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 AD829 belongs to Analog Devices' precision high-speed op amp product line, engineered specifically for broadcast video, instrumentation, and high-fidelity signal chain applications demanding simultaneous low noise, high slew rate, and exceptional dc accuracy.

FAQ

What is the recommended external compensation capacitor value for AD829AR-REEL in a gain-of-2 video line driver?

For a gain-of-2 inverting or noninverting video line driver, the AD829AR-REEL datasheet specifies C_COMP = 25 pF (shunt compensation) to achieve 71 MHz small-signal bandwidth with <1 dB peaking and optimal differential phase/gain performance. This value is validated for ±15 V supplies driving 75 Ω loads and appears in Table 4 of Rev. I datasheet. Using 25 pF ensures stability while preserving the 0.02%/0.04° video fidelity that defines the AD829AR-REEL's role in broadcast systems.

Can AD829AR-REEL operate from a single +10 V supply?

No - the AD829AR-REEL is specified exclusively for dual-supply operation from ±4.5 V to ±18 V. Its input common-mode range extends to within 0.7 V of each rail (e.g., −13.8 V to +14.3 V at ±15 V), but it lacks rail-to-rail input or output capability and has no internal charge pump or level-shifting circuitry for single-supply use. Attempting single-supply operation violates Absolute Maximum Ratings and will result in undefined behavior or damage. For single-ended systems, consider the AD8001 or ADA4891 family instead.

Does AD829AR-REEL support current-feedback configuration, and what are the key component values?

Yes - the AD829AR-REEL supports current-feedback compensation using its CCOMP pin. In inverting configuration, use RF = 1 kΩ and CCOMP = 15 pF to achieve ~10 MHz constant bandwidth across gains −1 to −4, with slew rate >60 V/µs (Figure 41). The configuration requires R1 = RF and C1 = CCOMP (15 pF), with IN4148 diode clamping recommended for large-signal integrity. This topology decouples bandwidth from closed-loop gain - a key differentiator from standard voltage-feedback op amps.

What is the maximum capacitive load AD829AR-REEL can drive without instability?

The AD829AR-REEL maintains stability into ≥100 pF capacitive loads when configured with appropriate external compensation. Its output stage includes an RC network that bootstraps the compensation node, allowing stable operation into heavy capacitive loads (e.g., long PCB traces or coaxial cables) at gains ≥10. At lower gains (e.g., unity), stability requires CCOMP ≥68 pF and careful layout - datasheet Figure 38 confirms stable operation with 100 pF load at gain 20. For >200 pF, current-feedback configuration is recommended.

How does the offset null functionality work on AD829AR-REEL, and is it required for video applications?

The AD829AR-REEL provides dedicated Offset Null pins (1 and 8) for connecting a 20 kΩ potentiometer wiper to V_OS adjust. While ac-coupled video systems may omit nulling, dc-coupled applications - such as medical imaging front-ends or precision instrumentation - require it to eliminate <1 mV input offset. The nulling circuit directly trims the input differential pair bias, reducing system-level drift and enabling true dc accuracy. For broadcast video with sync-tip clamping, nulling is optional but improves black-level stability over temperature.

AD829AR-REEL Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Package/Case:: 8-SOIC (0.154", 3.90mm Width)

Series:: -

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Applications:: Voltage Feedback

Output Type:: -

Number of Circuits:: 1

-3db Bandwidth:: 120 MHz

Slew Rate:: 230V/µs

Current - Supply:: 5.3 mA

Current - Output / Channel:: 32 mA

Voltage - Supply, Single/Dual (±):: ±4.5V ~ 18V

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

Supplier Device Package:: 8-SOIC

AD829AR-REEL FAQ

1.How can I place an order for AD829AR-REEL through Aetrix?

Please submit a Request for Quotation (RFQ) for AD829AR-REEL on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for AD829AR-REEL reliable?

The price and inventory of AD829AR-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD829AR-REEL is usually 5 days.

3.What payment methods are accepted for AD829AR-REEL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD829AR-REEL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AD829AR-REEL?

AD829AR-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AD829AR-REEL order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for AD829AR-REEL?

For technical support, including AD829AR-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD829AR-REEL requirements.

6.How does Aetrix verify that AD829AR-REEL is sourced from the original manufacturer or authorized distributors?

All AD829AR-REEL products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AD829AR-REEL meets industry standards.

7.What is the process for return or replacement of AD829AR-REEL?

All AD829AR-REEL units undergo pre-shipment inspection (PSI). If there is an issue with AD829AR-REEL, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The AD829AR-REEL part is unused and in its original packaging.

Return procedure for AD829AR-REEL:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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