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Analog Devices Inc. AD8079AR-REEL7
- Part No.:
- AD8079AR-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD8079AR-REEL7.pdf
- Description:
- IC AMP BUF DUAL LP LDIST 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
AD8079AR-REEL7 from Analog Devices is a dual, low-power, high-speed current-feedback buffer with factory-set gain of +2.0, ±5 V supply operation, 260 MHz –3 dB bandwidth, 750 V/µs slew rate, and 40 ns settling time to 0.1% - designed for differential video line driving and A-to-D converter buffering in professional cameras and switchers.
For engineers reviewing the AD8079AR-REEL7 datasheet, AD8079AR-REEL7 pinout, AD8079AR-REEL7 application, or AD8079AR-REEL7 equivalent, key selection criteria include guaranteed gain matching (0.1%), differential gain error (0.01%), crosstalk (–70 dB @ 5 MHz), output drive capability (70 mA), and SOIC-8 packaging for compact PCB layout.
Technical Context
The AD8079AR-REEL7 implements a dual current-feedback amplifier architecture with internal 750 Ω feedback resistors (AD8079A grade), enabling fixed +2.0 gain without external components. Its optimized pinout isolates inputs and outputs using two dedicated ground pins, achieving < –70 dB output-to-output crosstalk at 5 MHz.
It delivers video-grade performance: 0.01% differential gain error and 0.02° differential phase error into 150 Ω loads, with 0.1 dB gain flatness up to 50 MHz. The device operates on ±3 V to ±6 V supplies, draws 5 mA per amplifier (10 mA total), and drives up to four back-terminated 75 Ω loads per side while maintaining specified video fidelity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| –3 dB Bandwidth | 260 MHz - supports high-definition video signals and fast data acquisition sampling clocks. |
| Slew Rate | 750 V/µs (2 V step) - ensures minimal distortion on fast transient video edges and digital waveform edges. |
| Settling Time | 40 ns to 0.1% (2 V step) - enables accurate sampling in dual-channel ADC driver applications. |
| Differential Gain Error | 0.01% (NTSC, RL = 150 Ω) - preserves color fidelity in broadcast and professional video signal chains. |
| Crosstalk | –70 dB @ 5 MHz - prevents interference between dual channels in synchronized video or I/Q signal paths. |
| Supply Current | 10.0–11.5 mA total (±5 V, TMIN–TMAX) - enables low-power portable video equipment design. |
| Output Drive | 70 mA - drives eight 75 Ω back-terminated video loads (four per amplifier) without gain degradation. |
Pinout & Package
AD8079AR-REEL7 is housed in an 8-pin plastic SOIC (SO-8) package, 5.00 mm × 6.20 mm body size, with standard JEDEC MS-012AC footprint and 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (+IN1) | Noninverting input, Amplifier 1 | High-impedance (10 MΩ), low-capacitance (1.5 pF) input for single-ended or differential signal routing. |
| 2 (GND) | Ground reference, Channel 1 isolation | Dedicated ground pin separating inputs - reduces coupling between amplifiers and improves crosstalk. |
| 3 (GND) | Ground reference, Channel 2 isolation | Dedicated ground pin separating outputs - enhances output channel separation and stability. |
| 4 (+IN2) | Noninverting input, Amplifier 2 | Matched to Pin 1; enables synchronous dual-channel operation with tight gain matching (0.1%). |
| 5 (OUT1) | Output, Amplifier 1 | Capable of ±3.1 V swing into 150 Ω; drives video cables, transformers, or ADC inputs directly. |
| 6 (+VS) | Positive supply rail | Accepts +3 V to +6 V; bypassing with 4.7 µF + 0.1 µF capacitors required for stable high-frequency operation. |
| 7 (–VS) | Negative supply rail | Accepts –3 V to –6 V; independent PSRR (49–69 dB) minimizes supply noise coupling to outputs. |
| 8 (OUT2) | Output, Amplifier 2 | Matched to Pin 5; supports true differential signaling when paired with external passive network (e.g., Figure 27). |
Key Features
| Feature | Design Value |
|---|---|
| Factory-set gain | +2.0 (AD8079A grade) via laser-trimmed internal 750 Ω resistors - eliminates external gain-setting components and layout parasitics. |
| Optimum dual pinout | Two dedicated GND pins physically separate inputs and outputs - achieves –70 dB crosstalk and simplifies routing in dense video PCBs. |
| Video-optimized linearity | 0.01% differential gain / 0.02° differential phase into 150 Ω - meets NTSC/PAL broadcast requirements without post-compensation. |
| Low power per channel | 5 mA/amplifier at ±5 V - enables dual-channel high-speed buffering in battery-powered camcorders and portable test gear. |
| High output current | 70 mA per output - drives four 75 Ω back-terminated video loads per amplifier while retaining 0.01%/0.17° performance. |
Applications
| Professional Video Camera Signal Chain | High-Speed Dual-Channel ADC Driver |
|---|---|
|
Use Scenario: Driving analog outputs from CCD/CMOS image sensors to dual-channel 10-bit+ ADCs in 4K/60fps broadcast cameras. IC Role / Device Role / Timing Role: Dual buffer providing matched gain, low crosstalk, and fast settling to preserve pixel timing integrity across parallel channels. Use Value: Enables simultaneous sampling of R/G/B or Y/C signals with <0.01% gain mismatch and sub-40 ns settling - critical for color accuracy and dynamic range. |
Use Scenario: Conditioning differential analog inputs for high-speed pipeline or sigma-delta ADCs in medical imaging or radar front ends. IC Role / Device Role / Timing Role: Dual noninverting buffer with fixed +2.0 gain, driving ADC inputs while rejecting common-mode noise and preserving SNR. Use Value: Delivers 260 MHz bandwidth and –65 dBc THD at 5 MHz - maintains ENOB >9.5 bits for 10 MSPS+ conversion systems. |
| SDI/HDMI Analog Back-End Driver | Video Switcher Output Stage |
|
Use Scenario: Final-stage amplification before coaxial cable transmission in SDI-compatible equipment or HDMI analog-domain test fixtures. IC Role / Device Role / Timing Role: Dual line driver delivering 75 Ω matched output impedance and 0.1 dB flatness to 50 MHz for baseband video compliance. Use Value: Supports SMPTE 259M/344M eye diagram margins with 0.01% differential gain - eliminates need for external peaking or equalization. |
Use Scenario: Output buffering in multi-input video switchers where multiple sources feed a shared distribution path. IC Role / Device Role / Timing Role: Dual isolated buffer preventing inter-channel leakage during source switching and load transients. Use Value: –70 dB crosstalk at 5 MHz and 40 dB load isolation ensure clean transitions without ghosting or color bleed between video sources. |
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, same +2.0 gain, identical SOIC-8 package, but no dual-channel integration. | Requires two devices for dual-path use - increases board area, power, and layout complexity vs. AD8079AR-REEL7. | Select when only one channel is needed or when channel independence must exceed AD8079's –70 dB crosstalk. |
| THS3202D | Gain = +1 (non-configurable), higher slew rate (3000 V/µs), wider bandwidth (1.8 GHz), but higher quiescent current (24 mA total). | Better for ultra-high-speed pulse applications (>500 MHz), but lacks video-optimized differential gain/phase specs and factory-set gain. | Select when bandwidth >1 GHz is mandatory and video fidelity is secondary to speed. |
Compared with AD8079AR-REEL7, AD8075ARZ offers identical per-channel performance but doubles component count and layout overhead for dual functions, while THS3202D trades video linearity and power efficiency for raw speed - making AD8079AR-REEL7 optimal for cost-sensitive, space-constrained, broadcast-grade dual video buffering.
Availability
AD8079AR-REEL7 is available at Aetrix Electronics and suitable for professional video camera signal chains, high-speed dual-channel ADC driver designs, and SDI/HDMI analog back-end applications requiring stable component supply, consistent gain matching, and industrial temperature support (–40°C to +85°C).
Supply support for AD8079AR-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 precision instrumentation, communications, and industrial markets since 1965.
The AD8079AR-REEL7 belongs to Analog Devices' high-speed video amplifier product line, engineered specifically for broadcast, medical imaging, and test equipment requiring low-distortion, dual-channel buffering with factory-trimmed gain and minimal external components.
FAQ
What is the gain configuration of the AD8079AR-REEL7?
The AD8079AR-REEL7 is the AD8079A grade variant with factory-set noninverting gain of +2.0, achieved via laser-trimmed internal 750 Ω feedback resistors. This eliminates external gain-setting components and ensures 0.1% gain matching between channels under all operating conditions.
Does the AD8079AR-REEL7 support single-supply operation?
The AD8079AR-REEL7 is specified for dual ±3 V to ±6 V operation, but it can operate from a single +12 V supply with appropriate level-shifting and biasing. However, full performance - including output swing, distortion, and settling time - is guaranteed only within the ±5 V dual-supply condition stated in the datasheet.
Can the AD8079AR-REEL7 drive 75 Ω back-terminated video loads directly?
Yes - the AD8079AR-REEL7 drives up to four 75 Ω back-terminated loads per amplifier (eight total) while maintaining 0.01% differential gain and 0.07° differential phase error. Each output delivers ≥70 mA, and the SOIC-8 package thermal design supports this load under industrial temperature conditions.
What is the maximum junction temperature and power derating behavior of the AD8079AR-REEL7?
The AD8079AR-REEL7 has a maximum safe junction temperature of +150°C. In its 8-pin SOIC package (θJA = 160°C/W), maximum power dissipation drops linearly from 0.9 W at +25°C ambient to zero at +85°C ambient - per the official derating curve in Figure 2 of the datasheet.
Is the AD8079AR-REEL7 pin-compatible with other members of the AD8079 family?
Yes - all AD8079 variants (AD8079AR, AD8079AR-REEL, AD8079AR-REEL7, AD8079BR, etc.) share identical 8-pin SOIC pinout and electrical interface. Only the factory-set gain differs: AD8079AR-REEL7 is +2.0 (A grade), while BR-grade parts are +2.2. No PCB changes are required when substituting within the same grade.
AD8079AR-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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
AD8079AR-REEL7 FAQ
1.How can I place an order for AD8079AR-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8079AR-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 AD8079AR-REEL7 reliable?
The price and inventory of AD8079AR-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8079AR-REEL7 is usually 5 days.
3.What payment methods are accepted for AD8079AR-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8079AR-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8079AR-REEL7?
AD8079AR-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8079AR-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 AD8079AR-REEL7?
For technical support, including AD8079AR-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8079AR-REEL7 requirements.
6.How does Aetrix verify that AD8079AR-REEL7 is sourced from the original manufacturer or authorized distributors?
All AD8079AR-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 AD8079AR-REEL7 meets industry standards.
7.What is the process for return or replacement of AD8079AR-REEL7?
All AD8079AR-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD8079AR-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 AD8079AR-REEL7 part is unused and in its original packaging.
Return procedure for AD8079AR-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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