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Analog Devices Inc. AD813AR-14-REEL7
- Part No.:
- AD813AR-14-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Video Amps and Modules
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD813AR-14-REEL7.pdf
- Description:
- IC AMP CURRENT FEEDBACK 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,552
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Product details
Overview
AD813AR-14-REEL7 from Analog Devices is a single-supply, low-power triple current-feedback video amplifier optimized for driving 150 Ω back-terminated video loads. It delivers 0.1 dB gain flatness to 20 MHz (at +5 V), 0.05% differential gain error, 0.05° differential phase error, and 500 V/µs slew rate - enabling high-fidelity RGB, composite, or component video line driving in portable and industrial systems.
For engineers reviewing the AD813AR-14-REEL7 datasheet, AD813AR-14-REEL7 pinout, AD813AR-14-REEL7 application, or AD813AR-14-REEL7 equivalent, key selection considerations include its 14-pin SOIC package, per-channel high-speed disable (80 ns turn-off), ±1.2 V to ±18 V dual or +2.4 V to +36 V single-supply operation, and guaranteed –40°C to +85°C industrial temperature range.
Technical Context
The AD813AR-14-REEL7 implements three independent current-feedback amplifiers on a complementary bipolar process, each with 50 mA output drive capability and input resistance of 15 MΩ (noninverting) / 90 Ω (inverting). Its bandwidth scales with supply voltage and feedback resistor value - e.g., 65 MHz at ±5 V / G = +2, 50 MHz at +5 V / G = +2 - and supports stable operation into capacitive loads when series output resistance is applied.
Each channel features a dedicated disable pin (DISABLE1–3), enabling independent power-down with 80 ns turn-off time and >–55 dB off-isolation at 5 MHz. Input common-mode range extends from 1.0 V to 4.0 V at +5 V supply, and output swing reaches ±3.2 V p-p into 150 Ω, supporting standard video signal levels without level-shifting circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | +2.4 V to +36 V single supply or ±1.2 V to ±18 V dual supply - enables direct integration into 3.3 V, 5 V, or ±15 V systems without regulators. |
| Quiescent Current | 4.0 mA per amplifier typical at +5 V - total ~12 mA for all three channels, suitable for battery-powered video interfaces. |
| –3 dB Bandwidth | 50 MHz at +5 V / G = +2 - sufficient for HD baseband video (720p/1080i) signal amplification without attenuation. |
| Differential Gain/Phase | 0.05% / 0.05° at NTSC, +5 V, RL = 150 Ω - meets broadcast-grade color fidelity requirements for consumer and pro AV equipment. |
| Slew Rate | 100 V/µs at +5 V / G = +2 - ensures minimal distortion on fast video transients (e.g., sync pulses, edge transitions). |
| Output Drive | 30 mA minimum into 150 Ω at +5 V - sustains full-swing video signals across standard coaxial cable lengths. |
| Disable Turn-Off Time | 80 ns maximum - supports high-speed video multiplexing and channel blanking in RGB or YUV switching applications. |
Pinout & Package
AD813AR-14-REEL7 is housed in a 14-lead plastic SOIC (R-14) package, 8.65 mm × 3.90 mm, with standard 1.27 mm pitch. Pin 1 is marked by a beveled corner or dot; pin numbering follows counterclockwise convention from top-left when viewed with marking side up.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | DISABLE1 | Active-low enable control for Amplifier 1; pulls output to high-impedance state when logic low. |
| 2 | DISABLE2 | Active-low enable control for Amplifier 2; independent of other channels for flexible mux control. |
| 3 | DISABLE3 | Active-low enable control for Amplifier 3; allows per-channel power gating in multi-format systems. |
| 4 | VS+ | Positive supply rail; accepts +2.4 V to +36 V (single) or connects to +VS in dual-supply configurations. |
| 5 | +IN1 | Noninverting input of Amplifier 1; 15 MΩ input resistance minimizes loading on preceding stage. |
| 6 | –IN1 | Inverting input of Amplifier 1; 90 Ω input resistance matches standard video termination impedance. |
| 7 | OUT1 | Amplifier 1 output; capable of ±3.2 V p-p swing into 150 Ω, delivering full NTSC/PAL signal amplitude. |
| 8 | OUT2 | Amplifier 2 output; electrically isolated from OUT1/OUT3 to maintain <–65 dB crosstalk at 5 MHz. |
| 9 | –IN2 | Inverting input of Amplifier 2; matched bias current and offset voltage ensure inter-channel gain matching ≤0.1 dB. |
| 10 | +IN2 | Noninverting input of Amplifier 2; identical AC/DC specs to +IN1 for consistent RGB or YUV channel behavior. |
| 11 | VS– | Negative supply rail; tied to ground in single-supply mode; accepts –1.2 V to –18 V in dual configuration. |
| 12 | +IN3 | Noninverting input of Amplifier 3; supports third video channel (e.g., sync, alpha, or auxiliary signal). |
| 13 | –IN3 | Inverting input of Amplifier 3; maintains same 90 Ω input impedance as other channels for uniform layout. |
| 14 | OUT3 | Amplifier 3 output; fully specified for video performance - not a generic op-amp output. |
Key Features
| Feature | Design Value |
|---|---|
| Triple video amplifier in one SOIC | Reduces PCB area and BOM count vs. three discrete op-amps; eliminates inter-channel layout mismatch. |
| Single-supply operation down to +2.4 V | Enables direct interface with 3.3 V microcontrollers and FPGAs without level shifters or charge pumps. |
| 0.1 dB gain flatness to 20 MHz (+5 V) | Preserves luminance/chrominance timing alignment across HD video bandwidth, preventing blurring or hue shift. |
| Per-channel disable with 80 ns turn-off | Supports dynamic channel blanking in video multiplexers and power-aware display subsystems. |
| Output swing to within 1 V of rails | Delivers ±3.2 V p-p into 150 Ω at +5 V - covers full 1 Vpp composite or 0.7 Vpp RGB video standards. |
| –65 dB crosstalk at 5 MHz | Prevents interference between RGB or YUV channels in high-density video routing without guard traces. |
Applications
| RGB Video Line Driver | LCD Timing Controller Interface |
|---|---|
|
Use Scenario: Driving red, green, and blue analog video signals from a graphics processor to an LCD panel over 150 Ω coaxial traces. IC Role / Device Role / Timing Role: Triple-channel buffer and level shifter ensuring simultaneous, matched gain and phase response across all three color channels. Use Value: Maintains color fidelity with 0.05% differential gain error and <0.1 dB inter-channel gain match at 20 MHz - critical for accurate gamma and white point reproduction. |
Use Scenario: Conditioning LVDS-to-analog converted video data for direct-drive TFT panels requiring precise analog pixel voltage control. IC Role / Device Role / Timing Role: High-speed, low-distortion amplifier for analog video DAC outputs, with rail-to-rail compatible swing and fast settling. Use Value: 100 V/µs slew rate and 50 MHz bandwidth prevent edge smearing on fast pixel clock edges; 30 mA drive sustains load capacitance of column drivers. |
| Computer Video Plug-In Board | Ultrasound Signal Conditioning |
|
Use Scenario: Adding analog VGA or component video output to embedded PC/104 or Mini-ITX add-in cards with space-constrained layouts. IC Role / Device Role / Timing Role: Compact triple amplifier replacing discrete solutions to minimize board real estate while maintaining broadcast-grade video specs. Use Value: SOIC-14 footprint saves >60% area vs. three SO-8 op-amps; single-supply +5 V operation simplifies power design and reduces component count. |
Use Scenario: Amplifying and buffering time-gated echo return signals in portable ultrasound front-ends before ADC sampling. IC Role / Device Role / Timing Role: Low-noise, wideband amplifier for pulsed RF signals (1–15 MHz), with fast overload recovery and channel isolation. Use Value: 3.5 nV/√Hz input voltage noise and 25 ns overload recovery at G = +10 preserve weak echo signal integrity; per-channel disable enables time-multiplexed beamforming. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple video amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS3203DR | Higher 1.4 GHz bandwidth but higher 12.5 mA/quiescent current; no integrated disable function; requires dual supplies for optimal video performance. | Better suited for ultra-wideband test equipment or radar IF stages, not cost-sensitive consumer video line drivers. | Select THS3203DR only when >500 MHz small-signal bandwidth is required and power budget allows >3× higher quiescent draw. |
| LMH6738MA/NOPB | Single-channel, 1.8 GHz bandwidth, 12.5 mA supply current; no disable pin; SOIC-8 package; higher differential phase (0.15°) at 5 MHz. | Requires three separate ICs for RGB, increasing layout complexity and inter-channel skew risk. | Choose LMH6738MA/NOPB for highest-fidelity single-channel applications where board space permits three devices and thermal management supports higher dissipation. |
Compared with THS3203DR and LMH6738MA/NOPB, the AD813AR-14-REEL7 offers lower power (4 mA/channel), integrated per-channel disable, and guaranteed triple-channel matching - making it uniquely suitable for space- and power-constrained RGB video routing where inter-channel consistency is mandatory.
Availability
AD813AR-14-REEL7 is available at Aetrix Electronics and suitable for RGB video line drivers, LCD timing controller interfaces, and computer video plug-in boards requiring stable component supply, long-term industrial temperature support (–40°C to +85°C), and reel-based automated assembly.
Supply support for AD813AR-14-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, founded in 1965 and headquartered in Wilmington, MA.
The AD813 belongs to Analog Devices' precision video amplifier product line, designed specifically for broadcast, medical imaging, and industrial video systems demanding low distortion, tight channel matching, and robust single-supply operation.
FAQ
What supply voltage ranges does the AD813AR-14-REEL7 support?
The AD813AR-14-REEL7 operates from a single +2.4 V to +36 V supply or dual ±1.2 V to ±18 V supplies. At +5 V, it achieves 0.1 dB gain flatness to 20 MHz and 0.05% differential gain error. The AD813AR-14-REEL7 is fully specified across this range, including quiescent current (4.0 mA/channel typical at +5 V) and output swing (±3.2 V p-p into 150 Ω), making it adaptable to legacy ±15 V systems and modern 3.3 V/5 V platforms alike.
Does the AD813AR-14-REEL7 require external compensation components?
No, the AD813AR-14-REEL7 is internally compensated for unity-gain stability with standard feedback configurations. Its current-feedback architecture means closed-loop bandwidth depends primarily on feedback resistor value (e.g., 649 Ω for G = +2 at ±5 V) rather than capacitor-based compensation. External series output resistors (~15–50 Ω) are recommended only when driving large capacitive loads (>100 pF) to suppress peaking - no compensation capacitors are needed for standard 150 Ω video loads.
How does the disable function work on the AD813AR-14-REEL7?
Each amplifier in the AD813AR-14-REEL7 has a dedicated active-low disable pin (DISABLE1–3). When pulled low, the corresponding output enters high-impedance state within 80 ns (max turn-off time), with >–55 dB off-isolation at 5 MHz. This allows independent channel blanking in video multiplexers or power gating during idle periods. The AD813AR-14-REEL7 draws only 0.4–0.6 mA per disabled channel at +5 V, reducing system standby power significantly.
Can the AD813AR-14-REEL7 drive 75 Ω video lines directly?
Yes - the AD813AR-14-REEL7 can drive 75 Ω lines when configured for G = +2 with appropriate feedback/gain resistors (e.g., RF = RG = 715 Ω per Table I in the datasheet). Its 50 mA output current and 0.1 dB flatness to 20 MHz meet SMPTE 253M and EIA-770.3 requirements for SD/HD baseband video. For optimal performance, use back-termination: place a 75 Ω resistor at the load end and match source impedance via feedback network design - the AD813AR-14-REEL7's 90 Ω inverting input resistance facilitates this.
Is the AD813AR-14-REEL7 pin-compatible with other triple video amplifiers?
No - the AD813AR-14-REEL7 uses a proprietary 14-pin SOIC pinout optimized for three independent amplifiers with dedicated disable inputs and shared supplies. It is not pin-compatible with alternatives like the THS3203 (8-pin) or LMH6738 (8-pin), which are single-channel. Substitution would require PCB redesign. The AD813AR-14-REEL7's pin mapping - including VS+, VS–, three DISABLE pins, and interleaved IN/OUT assignments - is unique to the AD813 family and documented in the Rev. B datasheet Figure 5.
AD813AR-14-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- Current Feedback
- Output Type:
- -
- Number of Circuits:
- 3
- -3db Bandwidth:
- 100 MHz
- Slew Rate:
- 250V/µs
- Current - Supply:
- 4.5 mA
- Current - Output / Channel:
- 50 mA
- Voltage - Supply, Single/Dual (±):
- 2.4V ~ 36V, ±1.2V ~ 18V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 14-SOIC
AD813AR-14-REEL7 FAQ
1.How can I place an order for AD813AR-14-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD813AR-14-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 AD813AR-14-REEL7 reliable?
The price and inventory of AD813AR-14-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD813AR-14-REEL7 is usually 5 days.
3.What payment methods are accepted for AD813AR-14-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD813AR-14-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD813AR-14-REEL7?
AD813AR-14-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD813AR-14-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 AD813AR-14-REEL7?
For technical support, including AD813AR-14-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD813AR-14-REEL7 requirements.
6.How does Aetrix verify that AD813AR-14-REEL7 is sourced from the original manufacturer or authorized distributors?
All AD813AR-14-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 AD813AR-14-REEL7 meets industry standards.
7.What is the process for return or replacement of AD813AR-14-REEL7?
All AD813AR-14-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD813AR-14-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 AD813AR-14-REEL7 part is unused and in its original packaging.
Return procedure for AD813AR-14-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AD813AR-14-REEL7 Tags
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