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Home > Products > Integrated Circuits (ICs) > Linear > Instrumentation, Op Amps, Buffer Amps

Analog Devices Inc. ADA4861-3YRZ-RL7

Name: ADA4861-3YRZ-RL7
Brand: Analog Devices Inc.
SKU: ADA4861-3YRZ-RL7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADA4861-3YRZ-RL7

Manufacturer:: Analog Devices Inc.

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 14-SOIC (0.154", 3.90mm Width)

Datasheet:: ADA4861-3YRZ-RL7.pdf

Description:: IC OPAMP CFA 3 CIRCUIT 14SOIC

Quantity:: RFQ Add To RFQ list

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Product details

Overview

ADA4861-3YRZ-RL7 from Analog Devices is a high-speed, current-feedback triple operational amplifier in a 14-lead SOIC_N package, delivering 730 MHz −3 dB bandwidth (±5 V), 625–910 V/μs slew rate, and 12 ns settling time to 0.5%. It features independent power-down pins per amplifier, 0.01% differential gain, and is optimized for RGB video driver, ADC buffer, and active filter applications.

For engineers reviewing the ADA4861-3YRZ-RL7 datasheet, ADA4861-3YRZ-RL7 pinout, ADA4861-3YRZ-RL7 application, or ADA4861-3YRZ-RL7 equivalent, key selection criteria include its current-feedback architecture, 100 MHz 0.1 dB flatness (±5 V), ±5 V / +5 V dual/single-supply operation, and 14-pin SOIC_N thermal performance (θ_JA = 90°C/W).

Technical Context

The ADA4861-3YRZ-RL7 uses a current-feedback topology with transimpedance gain stage, enabling wide bandwidth independent of closed-loop gain. Its −IN terminals present low impedance (~90 Ω), while +IN inputs exhibit high impedance (15 MΩ) and low capacitance (1.5 pF), supporting stable high-frequency feedback networks.

Each amplifier integrates an independent POWER-DOWN pin referenced to −VS, allowing selective shutdown with 0.3 mA/quiescent current per channel. The device maintains 0.02° differential phase and −65 dB all-hostile crosstalk at 1 MHz, confirming suitability for multi-channel video signal integrity.

Key Specifications

Parameter	Value and Actual Design Meaning
−3 dB Bandwidth	730 MHz at G = +1, ±5 V supply - enables baseband video and high-speed DAC reconstruction filtering
Slew Rate	910 V/μs (rising, ±5 V) - supports fast transient response for 2 V_p-p signals without distortion
Settling Time	12 ns to 0.5% - ensures accurate sampling in high-speed data acquisition systems
Differential Gain/Phase	0.01% / 0.02° - meets broadcast-grade video fidelity requirements (NTSC/PAL)
Power-Down Current	0.3 mA per amplifier - reduces total system quiescent current by >95% when idle
Input Common-Mode Range	−3.7 V to +3.7 V (±5 V) - accommodates rail-to-rail input signals in single-ended video interfaces
Output Drive	±3.65 V swing into 150 Ω - directly drives 75 Ω video loads with series termination

Pinout & Package

The ADA4861-3YRZ-RL7 is housed in a 14-lead SOIC_N package (JEDEC MS-012-AB, 8.75 mm × 4.00 mm, θ_JA = 90°C/W), rated for −40°C to +105°C operation.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3	POWER DOWN 1/2/3	Independent enable/disable control per amplifier; logic-high (> −VS + 1 V) disables channel
4	+VS	Positive supply pin - accepts 5 V to 12 V (single) or ±5 V (dual)
5, 10, 12	+IN 1/3/2	Noninverting inputs - high-Z (15 MΩ), low-C (1.5 pF) for stable gain-setting networks
6, 9, 13	−IN 1/3/2	Inverting inputs - low-Z (~90 Ω) current-feedback node requiring precise RF/ RG matching
7, 8, 14	OUT 1/3/2	Amplifier outputs - capable of ±3.65 V swing into 150 Ω, 100 mA short-circuit current
11	−VS	Negative supply pin - required for dual-supply operation or power-down reference in single-supply mode

Key Features

Feature	Design Value
Triple current-feedback architecture	Enables simultaneous high-bandwidth processing of R/G/B video channels without inter-channel degradation
Independent per-amplifier power-down	Reduces system-level power by selectively disabling unused channels - critical for portable video equipment
75 Ω video-optimized drive capability	Supports direct 75 Ω cable driving with series output resistors and shunt input termination
0.1 dB flatness to 100 MHz (±5 V)	Preserves amplitude integrity across HD video bandwidth (up to 1080p60 baseband)
Low 0.02° differential phase error	Maintains color fidelity in composite and component video systems per SMPTE/ITU standards

Applications

RGB Video Driver	ADC Buffer
Use Scenario: Driving analog RGB signals from a graphics processor to three separate 75 Ω coaxial video cables in professional monitors. IC Role / Device Role / Timing Role: Triple op amp configured as unity-gain followers with 75 Ω series output termination and 75 Ω shunt input termination per channel. Use Value: Maintains 0.01% differential gain and 0.02° phase accuracy across DC–100 MHz, preserving color saturation and hue fidelity.	Use Scenario: Isolating and driving high-resolution (14+ bit), high-speed (≥10 MSPS) ADC inputs from noisy digital or switching supply domains. IC Role / Device Role / Timing Role: Low-noise (3.8 nV/√Hz), fast-settling (12 ns) buffer placed immediately before ADC sample-and-hold input. Use Value: Prevents aperture uncertainty and harmonic distortion via 730 MHz bandwidth and 910 V/μs slew rate, ensuring full ENOB retention.
20 MHz Active Low-Pass Filter	Driving Two Video Loads
Use Scenario: Implementing a 6-pole Sallen-Key reconstruction filter after a video DAC operating at 28 MHz clock rate. IC Role / Device Role / Timing Role: Three-stage cascaded current-feedback amplifier forming 2nd-order sections with matched RF/RG networks (301 Ω/301 Ω). Use Value: Delivers flat 0.1 dB response to 22 MHz and >60 dB stopband attenuation - compliant with ITU-R BT.601/656 timing masks.	Use Scenario: Simultaneously driving two identical 75 Ω video loads (e.g., local monitor + broadcast encoder) from a single RGB source. IC Role / Device Role / Timing Role: One amplifier per color channel, each configured with dual 75 Ω output paths using split-series termination. Use Value: Achieves 100 MHz 0.1 dB flatness under dual-load conditions - eliminates inter-load crosstalk and amplitude mismatch.

RGB Video Driver

ADC Buffer

Use Scenario: Driving analog RGB signals from a graphics processor to three separate 75 Ω coaxial video cables in professional monitors.

IC Role / Device Role / Timing Role: Triple op amp configured as unity-gain followers with 75 Ω series output termination and 75 Ω shunt input termination per channel.

Use Value: Maintains 0.01% differential gain and 0.02° phase accuracy across DC–100 MHz, preserving color saturation and hue fidelity.

Use Scenario: Isolating and driving high-resolution (14+ bit), high-speed (≥10 MSPS) ADC inputs from noisy digital or switching supply domains.

IC Role / Device Role / Timing Role: Low-noise (3.8 nV/√Hz), fast-settling (12 ns) buffer placed immediately before ADC sample-and-hold input.

Use Value: Prevents aperture uncertainty and harmonic distortion via 730 MHz bandwidth and 910 V/μs slew rate, ensuring full ENOB retention.

20 MHz Active Low-Pass Filter

Driving Two Video Loads

Use Scenario: Implementing a 6-pole Sallen-Key reconstruction filter after a video DAC operating at 28 MHz clock rate.

IC Role / Device Role / Timing Role: Three-stage cascaded current-feedback amplifier forming 2nd-order sections with matched RF/RG networks (301 Ω/301 Ω).

Use Value: Delivers flat 0.1 dB response to 22 MHz and >60 dB stopband attenuation - compliant with ITU-R BT.601/656 timing masks.

Use Scenario: Simultaneously driving two identical 75 Ω video loads (e.g., local monitor + broadcast encoder) from a single RGB source.

IC Role / Device Role / Timing Role: One amplifier per color channel, each configured with dual 75 Ω output paths using split-series termination.

Use Value: Achieves 100 MHz 0.1 dB flatness under dual-load conditions - eliminates inter-load crosstalk and amplitude mismatch.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADA4862-3YRZ-RL7	Integrated 301 Ω RF/RG resistors per channel; same SOIC_N package and electrical specs	Reduces external component count for fixed G = +2 video drivers; no layout tuning of feedback network needed	Select ADA4862-3YRZ-RL7 when minimizing BOM count and board area for standard video gain configurations
THS3203D	Single-channel, 1.8 GHz bandwidth, higher power (12.5 mA/channel), no power-down feature	Requires three discrete units for triple-channel use; lacks independent shutdown and video-optimized distortion specs	Select THS3203D only when absolute maximum bandwidth (>1 GHz) outweighs power, integration, and video fidelity requirements

Compared with ADA4862-3YRZ-RL7, the ADA4861-3YRZ-RL7 offers design flexibility via external RF/RG selection but requires careful layout; versus THS3203D, it delivers lower system power, integrated power management, and superior differential video performance at 730 MHz.

Availability

ADA4861-3YRZ-RL7 is available at Aetrix Electronics and suitable for consumer video, professional video, and broadband video applications requiring stable component supply, extended temperature operation (−40°C to +105°C), and JEDEC-compliant SOIC_N packaging.

Supply support for ADA4861-3YRZ-RL7 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 ADA4861-3YRZ-RL7 belongs to Analog Devices' high-speed current-feedback op amp product line, engineered specifically for demanding video, instrumentation, and communications signal conditioning where bandwidth, settling speed, and video fidelity are critical.

FAQ

What supply voltage ranges does the ADA4861-3YRZ-RL7 support?

The ADA4861-3YRZ-RL7 operates from a single +5 V to +12 V supply or dual ±5 V supplies. At ±5 V, it achieves 730 MHz −3 dB bandwidth and 910 V/μs slew rate; at +5 V, bandwidth reduces to 370 MHz but retains 12 ns settling time. Total quiescent current is 17.9 mA typical at ±5 V and 16.1 mA at +5 V.

How does the power-down function work on the ADA4861-3YRZ-RL7?

The ADA4861-3YRZ-RL7 has three independent POWER-DOWN pins (Pins 1, 2, 3), one per amplifier. When pulled > −VS + 1 V (e.g., > +1 V in +5 V systems or > −4 V in ±5 V systems), the corresponding amplifier shuts down to 0.3 mA quiescent current. Leaving pins open or pulling them < −VS + 1 V enables normal operation. Unused pins should be tied to −VS.

Can the ADA4861-3YRZ-RL7 drive 75 Ω video loads directly?

Yes - the ADA4861-3YRZ-RL7 delivers ±3.65 V output swing into 150 Ω and sustains 100 mA short-circuit current. For 75 Ω video loads, configure with 75 Ω series output resistors and 75 Ω shunt input terminations. This setup achieves 0.01% differential gain and 0.02° phase error, meeting broadcast video specifications.

What is the recommended feedback resistor value for G = +2 configuration?

For G = +2, the ADA4861-3YRZ-RL7 requires RF = RG = 301 Ω per amplifier. This value balances bandwidth (370 MHz at ±5 V), stability, and 0.1 dB flatness (100 MHz). Using smaller values risks peaking or oscillation; larger values reduce bandwidth. Layout must minimize parasitic inductance/capacitance in RF/RG traces.

Does the ADA4861-3YRZ-RL7 support single-supply operation with AC-coupled inputs?

Yes - the ADA4861-3YRZ-RL7 supports single +5 V operation with AC-coupled inputs. A mid-supply bias network (e.g., dual 50 kΩ resistors to +2.5 V) sets the input common-mode voltage. Output coupling capacitors (e.g., 220 µF) establish DC operating point. Input common-mode range extends to 1.2 V–3.8 V at +5 V, accommodating typical video signal levels.

ADA4861-3YRZ-RL7 Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: -

Package/Case:: 14-SOIC (0.154", 3.90mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Amplifier Type:: Current Feedback

Number of Circuits:: 3

Output Type:: -

Slew Rate:: 680V/µs

Gain Bandwidth Product:: -

-3db Bandwidth:: 370 MHz

Current - Input Bias:: 2.9 µA

Voltage - Input Offset:: 100 µV

Current - Supply:: 17.9mA

Current - Output / Channel:: 100 mA

Voltage - Supply Span (Min):: 5 V

Voltage - Supply Span (Max):: 12 V

Operating Temperature:: -40°C ~ 105°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-SOIC

ADA4861-3YRZ-RL7 FAQ

1.How can I place an order for ADA4861-3YRZ-RL7 through Aetrix?

Please submit a Request for Quotation (RFQ) for ADA4861-3YRZ-RL7 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 ADA4861-3YRZ-RL7 reliable?

The price and inventory of ADA4861-3YRZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4861-3YRZ-RL7 is usually 5 days.

3.What payment methods are accepted for ADA4861-3YRZ-RL7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4861-3YRZ-RL7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADA4861-3YRZ-RL7?

ADA4861-3YRZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADA4861-3YRZ-RL7 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 ADA4861-3YRZ-RL7?

For technical support, including ADA4861-3YRZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4861-3YRZ-RL7 requirements.

6.How does Aetrix verify that ADA4861-3YRZ-RL7 is sourced from the original manufacturer or authorized distributors?

All ADA4861-3YRZ-RL7 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 ADA4861-3YRZ-RL7 meets industry standards.

7.What is the process for return or replacement of ADA4861-3YRZ-RL7?

All ADA4861-3YRZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADA4861-3YRZ-RL7, 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 ADA4861-3YRZ-RL7 part is unused and in its original packaging.

Return procedure for ADA4861-3YRZ-RL7:

1.Submit a request within 90 days.

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

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