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Analog Devices Inc. AD8079ARZ-REEL7
- Part No.:
- AD8079ARZ-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD8079ARZ-REEL7.pdf
- Description:
- IC BUFFER 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:499
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Product details
Overview
AD8079ARZ-REEL7 from Analog Devices is a dual, low-power, high-speed current-feedback buffer with factory-set gain of +2.0, designed for ±5 V operation. It delivers 260 MHz –3 dB bandwidth, 800 V/µs slew rate, and <0.01% differential gain error-enabling precision video line driving and differential A-to-D converter buffering in professional cameras and broadcast switchers.
For engineers reviewing the AD8079ARZ-REEL7 datasheet, AD8079ARZ-REEL7 pinout, AD8079ARZ-REEL7 application, or AD8079ARZ-REEL7 equivalent, key selection criteria include guaranteed gain matching (0.1%), –70 dB crosstalk at 5 MHz, 40 ns settling to 0.1%, and SOIC-8 packaging optimized for low-layout parasitics in high-frequency analog signal paths.
Technical Context
The AD8079ARZ-REEL7 implements a dual current-feedback amplifier architecture with internal 750 Ω feedback resistors configured for fixed G = +2.0. Its pinout isolates inputs and outputs via two dedicated ground pins, enabling <–70 dB output-to-output crosstalk at 5 MHz and minimizing inter-channel interference in differential signaling.
It features transimpedance linearization circuitry that maintains 0.01% differential gain and 0.02° differential phase error into 150 Ω loads while consuming only 5 mA per amplifier. The device operates across –40°C to +85°C and supports single +12 V or dual ±3 V to ±6 V supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| –3 dB Bandwidth | 260 MHz - supports full HD video baseband and RF receiver IF stages without attenuation |
| Slew Rate | 800 V/µs (4 V step) - ensures clean transient response for fast-switching video and data signals |
| Gain Accuracy | +2.000 ±0.002 V/V (no load) - eliminates need for external gain-setting resistors in most video driver designs |
| Differential Gain Error | 0.01% @ NTSC, RL = 150 Ω - meets broadcast-grade color fidelity requirements |
| Crosstalk | –70 dB @ 5 MHz - prevents signal leakage between dual channels in camera sensor interfaces |
| Supply Current | 10.0–11.5 mA total (both amps) - enables portable and thermally constrained video equipment |
| Output Drive | 70 mA - drives up to four 75 Ω back-terminated video loads per side while preserving 0.01%/0.17° performance |
Pinout & Package
AD8079ARZ-REEL7 is housed in an 8-pin plastic SOIC (SO-8) package with 1.27 mm pitch, 5.00 mm × 6.20 mm body, and industrial temperature range (–40°C to +85°C). The pinout is optimized for input/output isolation and minimal PCB layout complexity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (+IN1) | Noninverting input, Channel 1 | High-impedance (10 MΩ), low-capacitance (1.5 pF) node for single-ended video or IF signal injection |
| 2 (GND) | Analog ground, Channel 1 input reference | AC ground return for Channel 1 input; separates input domains to reduce coupling |
| 3 (GND) | Analog ground, Channel 1 output reference | AC ground return for Channel 1 output; isolates output stage from input stage |
| 4 (+IN2) | Noninverting input, Channel 2 | Independent high-Z input for second video path or differential pair source |
| 5 (OUT1) | Buffered output, Channel 1 | Capable of >70 mA drive into 75 Ω; supports back-terminated coaxial cable routing |
| 6 (+VS) | Positive supply rail | Accepts +3 V to +6 V (dual) or +12 V (single); bypassing with 4.7 µF + 0.1 µF required |
| 7 (–VS) | Negative supply rail | Accepts –3 V to –6 V; PSRR >49 dB ensures noise rejection from shared supply rails |
| 8 (OUT2) | Buffered output, Channel 2 | Matched to OUT1 in gain, settling, and drive strength for balanced differential signaling |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed gain | G = +2.0 with ±0.1% channel-to-channel matching - removes calibration overhead in production test |
| Optimized dual pinout | Two dedicated GND pins separating inputs and outputs - reduces layout-induced crosstalk by >20 dB vs. standard dual op-amps |
| Video-optimized linearity | 0.01% differential gain / 0.02° differential phase @ NTSC - satisfies SMPTE 259M and ITU-R BT.601 compliance |
| Low power per channel | 5 mA @ ±5 V - enables dual-channel video buffering in battery-powered field monitors and camcorders |
| ESD robustness | 5 kV HBM - withstands handling in automated SMT lines without special ESD controls beyond standard Class 1A protocols |
Applications
| Professional Video Cameras | Video Switchers |
|---|---|
Use Scenario: Driving dual CCD/CMOS sensor outputs to FPGA-based image processing pipelines in 4K broadcast cameras. IC Role / Device Role / Timing Role: Dual-channel video line driver providing matched gain, phase, and settling for parallel RGB or YUV signal paths. Use Value: Maintains 0.01% differential gain and 0.02° phase accuracy across both channels, preserving color fidelity and edge sharpness in real-time imaging. | Use Scenario: Routing multiple SDI or component video sources through a matrix switcher with minimal signal degradation. IC Role / Device Role / Timing Role: Differential line driver converting single-ended video to balanced outputs for long-haul coaxial transmission. Use Value: Delivers –70 dB crosstalk at 5 MHz and 260 MHz bandwidth, preventing ghosting and timing skew between switched video streams. |
| Differential A-to-D Converter Drivers | RF Receiver IF Stages |
Use Scenario: Buffering and level-shifting baseband I/Q signals before feeding dual 12-bit ADCs in software-defined radio front ends. IC Role / Device Role / Timing Role: High-speed, low-distortion dual buffer ensuring precise amplitude and timing alignment between ADC input channels. Use Value: Achieves –65 dBc THD at 5 MHz and 40 ns 0.1% settling, reducing quantization error and improving ENOB in undersampled systems. | Use Scenario: Amplifying 70 MHz IF outputs from mixer stages prior to filtering and demodulation in cellular base station receivers. IC Role / Device Role / Timing Role: Wideband gain block with flat frequency response and low group delay variation across 10–100 MHz band. Use Value: Provides 0.1 dB gain flatness to 50 MHz and 260 MHz –3 dB point, preserving modulation integrity in QAM and OFDM waveforms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual high-speed buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8075ARZ | Single-channel, G = +2.0, same SOIC-8 package, identical specs except no second channel | Used where only one video path or IF channel requires buffering; not suitable for dual-path synchronization | Select AD8075ARZ when space or cost constraints require single-channel implementation without sacrificing performance |
| LMH6702MA/NOPB | Single-channel, G = +1 (non-inverting), 1.8 GHz bandwidth, higher power (12.5 mA/ch), no factory gain trim | Better suited for ultra-wideband IF amplification (>500 MHz), but lacks gain matching and video-optimized linearity | Choose LMH6702MA/NOPB for >100 MHz signal chains where bandwidth outweighs differential gain/phase requirements |
Compared with AD8079ARZ-REEL7, AD8075ARZ provides identical per-channel performance in half the footprint but cannot support synchronized dual-path applications, while LMH6702MA/NOPB offers superior bandwidth at the expense of video-grade linearity, gain stability, and dual-channel integration.
Availability
AD8079ARZ-REEL7 is available at Aetrix Electronics and suitable for professional video cameras, broadcast switchers, and RF receiver IF stages requiring stable component supply, consistent gain matching, and industrial-temperature operation.
Supply support for AD8079ARZ-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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, communications, automotive, and consumer markets since 1965.
The AD8079ARZ-REEL7 belongs to Analog Devices' high-speed video and RF amplifier product line, engineered specifically for broadcast-quality video distribution, differential signaling, and precision analog front-end buffering where gain accuracy, crosstalk suppression, and thermal stability are critical.
FAQ
What is the operating temperature range for AD8079ARZ-REEL7?
The AD8079ARZ-REEL7 is rated for industrial operation from –40°C to +85°C. This range is validated across all key specifications including gain accuracy, differential phase error, and output drive capability. The device's thermal design-including 160°C/W junction-to-ambient thermal resistance in the SOIC-8 package-ensures reliable performance under continuous load in enclosed video enclosures or outdoor broadcast equipment.
Does AD8079ARZ-REEL7 require external gain-setting resistors?
No, AD8079ARZ-REEL7 does not require external gain-setting resistors. It integrates laser-trimmed 750 Ω internal feedback resistors configured for factory-set G = +2.0, delivering 1.998–2.002 V/V gain with 0.1% channel-to-channel matching. This eliminates layout sensitivity to resistor parasitics and simplifies PCB design for video line drivers and ADC buffers where gain stability is critical.
Can AD8079ARZ-REEL7 drive 75 Ω back-terminated coaxial cables directly?
Yes, AD8079ARZ-REEL7 can drive up to four 75 Ω back-terminated coaxial cables (two per amplifier) while maintaining 0.01% differential gain and 0.17° differential phase error. Each output delivers >70 mA into 75 Ω, supporting standard video termination schemes without external current-boosting circuitry. Layout best practices-such as 50 Ω stripline routing and local 0.1 µF + 4.7 µF supply bypassing-are required to preserve this performance.
What is the power supply configuration supported by AD8079ARZ-REEL7?
AD8079ARZ-REEL7 supports dual ±3 V to ±6 V supplies or a single +12 V supply. At ±5 V, it draws 10.0–11.5 mA total quiescent current (5 mA per amplifier), dissipating 50 mW per channel. The device maintains specified performance-including 260 MHz bandwidth and –70 dB crosstalk-across the full supply range, making it suitable for both legacy ±5 V video systems and modern single-rail portable designs.
How does the pinout of AD8079ARZ-REEL7 reduce crosstalk compared to standard dual op-amps?
The AD8079ARZ-REEL7 uses an "optimum dual pinout" with two dedicated GND pins physically separating Channel 1 inputs (Pin 1, Pin 2) from Channel 1 outputs (Pin 5, Pin 6) and Channel 2 inputs (Pin 4) from Channel 2 outputs (Pin 8). This layout minimizes shared impedance and capacitive coupling, achieving –70 dB output-to-output crosstalk at 5 MHz-more than 20 dB better than conventional dual op-amps with interleaved I/O pins in the same SOIC-8 package.
AD8079ARZ-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Buffer
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 800V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 260 MHz
- Current - Input Bias:
- 3 µA
- Voltage - Input Offset:
- 10 mV
- Current - Supply:
- 10mA (x2 Channels)
- Current - Output / Channel:
- 70 mA
- Voltage - Supply Span (Min):
- 6 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AD8079ARZ-REEL7 FAQ
1.How can I place an order for AD8079ARZ-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8079ARZ-REEL7 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 AD8079ARZ-REEL7 reliable?
The price and inventory of AD8079ARZ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8079ARZ-REEL7 is usually 5 days.
3.What payment methods are accepted for AD8079ARZ-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8079ARZ-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8079ARZ-REEL7?
AD8079ARZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8079ARZ-REEL7 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 AD8079ARZ-REEL7?
For technical support, including AD8079ARZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8079ARZ-REEL7 requirements.
6.How does Aetrix verify that AD8079ARZ-REEL7 is sourced from the original manufacturer or authorized distributors?
All AD8079ARZ-REEL7 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 AD8079ARZ-REEL7 meets industry standards.
7.What is the process for return or replacement of AD8079ARZ-REEL7?
All AD8079ARZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD8079ARZ-REEL7, 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 AD8079ARZ-REEL7 part is unused and in its original packaging.
Return procedure for AD8079ARZ-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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