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Analog Devices Inc. AD813ANZ
- Part No.:
- AD813ANZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Video Amps and Modules
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
AD813ANZ.pdf
- Description:
- IC AMP CURRENT FEEDBACK 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,819
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Product details
Overview
AD813ANZ 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 AD813ANZ datasheet, AD813ANZ pinout, AD813ANZ application, or AD813ANZ equivalent, this page provides verified circuit role (triple video driver), supply flexibility (+3 V to ±15 V), disable timing (80 ns turn-off), output swing (±1 V of rails), and matching performance (0.1 dB gain flatness match at 20 MHz) critical for broadcast-grade signal integrity and multiplexed video routing.
Technical Context
The AD813ANZ implements three independent current-feedback amplifiers on a complementary bipolar process, each with 50 mA output drive capability and high-speed disable control per channel. Its bandwidth scales with supply voltage and feedback resistor value - e.g., 125 MHz at ±15 V/G = +1 (RF = 866 Ω) and 50 MHz at +3 V/G = +2 - while maintaining <0.1 dB gain flatness up to 15 MHz under single +3 V operation.
Each amplifier features a low-impedance inverting input (≈90 Ω at +5 V), high-impedance noninverting input (15 MΩ), and rail-to-rail output swing capability (±1 V of VS+ or VS–). The device achieves –65 dB dynamic crosstalk at 5 MHz and 0.1 dB gain flatness matching across channels, supporting precise multi-channel video synchronization without inter-channel interference.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| –3 dB Bandwidth | 125 MHz at ±15 V, G = +1 - supports full HD baseband video transmission without attenuation |
| 0.1 dB Gain Flatness | 20 MHz at +5 V, G = +2 - preserves color fidelity and edge sharpness in NTSC/PAL signals |
| Differential Gain Error | 0.05% at +5 V, NTSC, RL = 150 Ω - meets broadcast-grade video accuracy requirements |
| Slew Rate | 500 V/µs at ±15 V, G = –1 - enables fast transient response for sync pulses and digital video edges |
| Quiescent Current | 4.0 mA per amplifier at +5 V - enables battery-powered portable video equipment with low thermal load |
| Turn-Off Time | 80 ns per channel - allows sub-100 ns video multiplexing and power-gating in time-division systems |
| Output Voltage Swing | ±3.2 V p-p at +5 V, RL = 150 Ω - delivers full 1 Vpp video signal with 1 V headroom to rails |
| Crosstalk | –65 dB at 5 MHz - ensures isolation between RGB or YUV channels in multi-amplifier configurations |
Pinout & Package
AD813ANZ is housed in a 14-lead plastic DIP (N-14) package with through-hole mounting and 0.3-inch body width. Pin 1 is marked by a notch or dot; pins are numbered counter-clockwise from the notch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | DISABLE1 | Active-low enable control for Amplifier 1; pulls output to high-impedance when logic low |
| 2 | DISABLE2 | Active-low enable control for Amplifier 2; independent channel shutdown |
| 3 | DISABLE3 | Active-low enable control for Amplifier 3; enables power-aware video routing |
| 4 | VS+ | Positive supply terminal; accepts +3 V to +15 V (single) or ±1.2 V to ±15 V (dual) |
| 5 | +IN1 | Noninverting input of Amplifier 1; 15 MΩ impedance, 2 pF capacitance |
| 6 | –IN1 | Inverting input of Amplifier 1; ≈90 Ω impedance, used for feedback network connection |
| 7 | OUT1 | Output of Amplifier 1; drives 150 Ω loads with 50 mA capability and ±1 V rail swing |
| 8 | OUT2 | Output of Amplifier 2; electrically isolated from OUT1/OUT3 with –65 dB crosstalk |
| 9 | –IN2 | Inverting input of Amplifier 2; matched to –IN1 for consistent gain-setting behavior |
| 10 | +IN2 | Noninverting input of Amplifier 2; high-Z node for DC-coupled video biasing |
| 11 | VS– | Negative supply terminal; grounded in single-supply mode; accepts –1.2 V to –15 V |
| 12 | +IN3 | Noninverting input of Amplifier 3; identical electrical characteristics to +IN1/+IN2 |
| 13 | –IN3 | Inverting input of Amplifier 3; supports standard current-feedback gain configuration |
| 14 | OUT3 | Output of Amplifier 3; fully specified for 150 Ω load, 0.1 dB flatness, and 0.05% DG/DP |
Key Features
| Feature | Design Value |
|---|---|
| Triple video amplifier integration | Three independent current-feedback amps in one 14-pin DIP - reduces board area and interconnect complexity vs. discrete solutions |
| Single-supply operation down to +3 V | Enables direct interface with 3.3 V logic and battery-powered portable video gear without level-shifting |
| High-speed per-channel disable | 80 ns turn-off time per amplifier - supports dynamic video channel selection in RGB or YUV switching matrices |
| Optimized for 150 Ω video loads | Guaranteed 0.1 dB gain flatness and <0.05% differential gain error into 150 Ω - meets SMPTE/ITU-R BT.601 video standards |
| Low crosstalk and matched performance | –65 dB dynamic crosstalk and 0.1 dB gain flatness match across all three channels - preserves color channel integrity in multi-signal paths |
| Rail-to-rail output swing | Output swings within 1 V of either supply rail - maximizes dynamic range for 1 Vpp video signals on +5 V supplies |
Applications
| RGB Video Line Driver | LCD Panel Timing Controller Interface |
|---|---|
Use Scenario: Driving red, green, and blue analog video signals from a graphics controller to an LCD panel over 150 Ω coaxial traces. IC Role / Device Role / Timing Role: Triple video buffer providing simultaneous gain-of-two amplification, DC-level shifting, and cable drive for RGB channels. Use Value: Maintains 0.05% differential gain and 0.05° phase error across all three channels, preserving color accuracy and eliminating hue shifts in high-resolution displays. | Use Scenario: Conditioning analog video outputs from an LCD timing controller before distribution to multiple display modules in industrial HMIs. IC Role / Device Role / Timing Role: High-speed triple amplifier delivering synchronized, low-distortion video signals with matched group delay. Use Value: 0.1 dB gain flatness match across channels ensures uniform brightness and contrast across RGB subpixels, critical for medical and factory-floor displays. |
| Ultrasound Signal Conditioning | Computer Video Plug-in Board |
Use Scenario: Amplifying and buffering time-aligned analog echo signals from ultrasound transducer arrays prior to ADC sampling. IC Role / Device Role / Timing Role: Low-noise, high-bandwidth triple amplifier used in receive-path beamforming circuits. Use Value: 125 MHz bandwidth and 500 V/µs slew rate preserve pulse fidelity of short-duration RF echoes; –65 dB crosstalk prevents channel bleed in multi-element arrays. | Use Scenario: Adding RGB or component video output capability to legacy PCI or ISA bus video cards via compact analog signal path expansion. IC Role / Device Role / Timing Role: Compact triple video driver replacing discrete op-amp solutions to save PCB real estate and reduce BOM count. Use Value: Single +5 V operation and 14-pin DIP footprint simplify retrofit designs; 20 MHz 0.1 dB flatness supports SVGA (800×600) and XGA (1024×768) resolutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple video amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD813ARZ | Same die, SOIC-14 package (R-14); 120°C/W thermal resistance vs. 75°C/W for DIP | Better suited for surface-mount production and higher-density layouts; slightly reduced power handling at elevated ambient | Select AD813ARZ for automated assembly and space-constrained PCBs where thermal margin permits |
| LMH6732MA | Triple current-feedback amp with 650 MHz GBW but higher quiescent current (12 mA/amplifier) and no integrated disable function | Targeted at higher-frequency applications (>100 MHz) where power and disable timing are secondary to bandwidth | Choose LMH6732MA only when >100 MHz small-signal bandwidth is required and per-channel shutdown is unnecessary |
Compared with AD813ARZ, AD813ANZ offers superior thermal performance in through-hole systems and simpler heatsinking; compared with LMH6732MA, AD813ANZ provides lower power (4 mA vs. 12 mA per amp), integrated disable, and guaranteed video-spec differential gain/phase - making it optimal for cost-sensitive, power-aware, broadcast-compliant video line driving.
Availability
AD813ANZ is available at Aetrix Electronics and suitable for RGB video line driving, LCD timing controller interfaces, and ultrasound signal conditioning requiring stable component supply, long-term industrial temperature support (–40°C to +85°C), and legacy through-hole compatibility.
Supply support for AD813ANZ 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 product line was engineered specifically for high-fidelity, low-power, multi-channel video signal distribution - targeting broadcast equipment, medical imaging, test instrumentation, and industrial display systems where differential gain/phase accuracy, channel matching, and supply flexibility are critical.
FAQ
What supply voltage ranges does the AD813ANZ support?
The AD813ANZ operates from a single +3 V to +36 V supply or dual ±1.2 V to ±15 V supplies. At +3 V, it delivers 0.1 dB gain flatness to 15 MHz and 0.2% differential gain error; at ±15 V, bandwidth extends to 125 MHz with 0.03% differential gain error. The AD813ANZ maintains full functionality across its entire rated operating temperature range (–40°C to +85°C) under all supported supply conditions.
Does the AD813ANZ require external compensation components?
No, the AD813ANZ is internally compensated and requires no external capacitors for stability. Its current-feedback architecture relies on proper selection of feedback resistors (e.g., 715 Ω for G = +2 at +5 V) rather than compensation networks. Layout best practices - including short feedback traces, local 0.1 µF/1 µF supply bypassing near pins 4 (VS+) and 11 (VS–), and ground plane separation - are sufficient to ensure flat 0.1 dB response and minimal peaking.
How does the AD813ANZ perform in single-supply video applications with AC-coupled inputs?
The AD813ANZ supports AC-coupled single-supply operation using standard biasing: a resistor divider sets +IN common-mode voltage to mid-supply (e.g., +2.5 V for +5 V rails), and a series capacitor blocks DC at the input. Its input common-mode range extends to +1.0 V to +4.0 V at +5 V supply, and its output swings to within 1 V of either rail - enabling full 1 Vpp video signal transmission with headroom for sync tips and blanking intervals. The AD813ANZ datasheet Figure 52 validates this configuration for differential gain/phase measurements.
Can the AD813ANZ drive 75 Ω video cables directly?
Yes - the AD813ANZ is explicitly characterized for 150 Ω loads but can drive 75 Ω cables with appropriate termination. For 75 Ω back-terminated lines, configure as a gain-of-two amplifier (e.g., RF = RG = 750 Ω at +5 V) and place a 75 Ω series resistor at the output to isolate the amplifier from cable capacitance. This preserves 0.1 dB flatness to >20 MHz and maintains 0.05% differential gain error, as confirmed in AD813ANZ application note Figure 46 and specification tables.
What is the thermal performance difference between AD813ANZ and AD813ARZ?
The AD813ANZ (14-lead plastic DIP) has a junction-to-ambient thermal resistance (θJA) of 75°C/W, while the AD813ARZ (SOIC-14) has θJA = 120°C/W. Under identical +5 V, 3-channel operation (12 mA total IQ), the AD813ANZ's junction temperature rise is ~3.6°C/W lower than the AD813ARZ's. This makes AD813ANZ preferable in thermally constrained through-hole systems or high-ambient environments, whereas AD813ARZ suits compact SMT layouts where board-level thermal management compensates for higher θJA.
AD813ANZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- 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:
- Through Hole
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 14-PDIP
AD813ANZ FAQ
1.How can I place an order for AD813ANZ through Aetrix?
Please submit a Request for Quotation (RFQ) for AD813ANZ 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 AD813ANZ reliable?
The price and inventory of AD813ANZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD813ANZ is usually 5 days.
3.What payment methods are accepted for AD813ANZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD813ANZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD813ANZ?
AD813ANZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD813ANZ 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 AD813ANZ?
For technical support, including AD813ANZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD813ANZ requirements.
6.How does Aetrix verify that AD813ANZ is sourced from the original manufacturer or authorized distributors?
All AD813ANZ 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 AD813ANZ meets industry standards.
7.What is the process for return or replacement of AD813ANZ?
All AD813ANZ units undergo pre-shipment inspection (PSI). If there is an issue with AD813ANZ, 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 AD813ANZ part is unused and in its original packaging.
Return procedure for AD813ANZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AD813ANZ Tags
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