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Analog Devices Inc. AD811ARZ-16-REEL
- Part No.:
- AD811ARZ-16-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Video Amps and Modules
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
AD811ARZ-16-REEL.pdf
- Description:
- IC AMP CURRENT FEEDBACK 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,644
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Product details
Overview
AD811ARZ-16-REEL from Analog Devices is a high-speed current-feedback operational amplifier optimized for broadcast-quality video systems. It delivers 120 MHz −3 dB bandwidth at G = +2, 0.01% differential gain / 0.01° differential phase (RL = 150 Ω), and 2500 V/µs slew rate, enabling precision video line driving, ADC/DAC buffering, and pulsed signal conditioning in HDTV, medical ultrasound, and broadcast infrastructure.
For engineers reviewing the AD811ARZ-16-REEL datasheet, AD811ARZ-16-REEL pinout, AD811ARZ-16-REEL application, or AD811ARZ-16-REEL equivalent, key selection criteria include its current-feedback architecture, ±4.5 V to ±18 V supply flexibility, 16-pin SOIC_W package, and verified performance into 75 Ω and 150 Ω video loads with sub-0.1% distortion up to 10 MHz.
Technical Context
The AD811ARZ-16-REEL implements a current-feedback topology where closed-loop bandwidth is set primarily by feedback resistor value (e.g., 649 Ω for 120 MHz at G = +2), not gain-enabling stable wideband operation across gains from −10 to +10. Its transresistance exceeds 0.75 MΩ (±15 V, RL = ∞), and input impedance asymmetry (14 Ω at −IN, 1.5 MΩ at +IN) defines its current-sensing node behavior.
Designed for video signal integrity, it maintains 0.1 dB gain flatness to 35 MHz (G = +2), achieves 25 ns settling to 0.1% on a 2 V step, and sustains low THD (−74 dBc at 10 MHz) while driving back-terminated 75 Ω cables-critical for multi-drop video distribution without crosstalk degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| −3 dB Bandwidth | 120 MHz at G = +2 (±15 V, RFB = 649 Ω): supports full HD baseband video signal fidelity without roll-off. |
| Slew Rate | 2500 V/µs (±15 V, 20 V p-p): enables clean reproduction of fast video edges and pulse signals without slewing distortion. |
| Differential Gain/Phase | 0.01% / 0.01° (f = 3.58 MHz, RL = 150 Ω): meets broadcast-grade color fidelity requirements for NTSC/PAL systems. |
| Input Voltage Noise | 1.9 nV/√Hz (1 kHz): preserves SNR in low-level analog signal paths such as medical imaging front-ends. |
| Output Current | 100 mA continuous (TJ = 25°C): drives dual 75 Ω back-terminated coax lines simultaneously without clipping. |
| Supply Range | ±4.5 V to ±18 V: supports legacy ±5 V and industrial ±15 V rails; specified for ±5 V and ±15 V operation. |
| Settling Time | 25 ns to 0.1% (2 V step, AV = −1): ensures accurate pixel-level timing in high-speed data acquisition buffers. |
Pinout & Package
AD811ARZ-16-REEL is housed in a 16-lead SOIC_W (RW-16) package with exposed pad thermal enhancement. Pin 1 is located at the top-left corner when viewing the top side with the marking notch oriented left. All NC pins must remain unconnected per datasheet Note 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 7, 8, 9, 10, 11, 12, 13, 15, 16 | No Connect (NC) | Internally unconnected; must be left floating-no routing or grounding permitted. |
| 3 | Inverting Input (−IN) | Current-sensing node of current-feedback architecture; low impedance (14 Ω) dictates feedback network design. |
| 5 | Noninverting Input (+IN) | Voltage-sensing node; high input resistance (1.5 MΩ) minimizes loading on source circuits. |
| 6 | Output (OUTPUT) | Capable of ±12 V swing into high-Z load (±15 V supplies); drives 75 Ω or 150 Ω video loads directly. |
| 14 | Positive Supply (+VS) | Accepts +4.5 V to +18 V; requires local 0.1 µF bypass capacitor to ground for stability. |
| 13 | Negative Supply (−VS) | Accepts −4.5 V to −18 V; symmetric bypassing essential to suppress PSRR-induced distortion. |
Key Features
| Feature | Design Value |
|---|---|
| Current-feedback architecture | Maintains >100 MHz bandwidth across gains from −10 to +10-unlike voltage-feedback op amps whose bandwidth drops with gain. |
| Video-optimized AC performance | 0.01% differential gain/0.01° differential phase at 3.58 MHz ensures broadcast-compliant color reproduction in NTSC/PAL systems. |
| High slew rate & fast settling | 2500 V/µs slew rate and 25 ns to 0.1% settling enable accurate reconstruction of sharp video transitions and digital pulses. |
| Low distortion at high frequency | THD = −74 dBc at 10 MHz supports high-fidelity buffering of ADC/DAC signals in data acquisition systems. |
| Flexible supply operation | Specified from ±4.5 V to ±18 V with full performance at ±5 V and ±15 V-reducing need for multiple rail designs. |
Applications
| Video Line Driver | ADC/DAC Buffer |
|---|---|
|
Use Scenario: Driving one or two back-terminated 75 Ω coaxial cables in broadcast switchers or HDTV distribution amplifiers. IC Role / Device Role / Timing Role: Final-stage video amplifier delivering full-swing, low-distortion output with minimal differential phase/gain error. Use Value: Enables multi-point video routing without color shift or timing skew-verified at 0.01% differential gain/0.01° phase (RL = 150 Ω). |
Use Scenario: Buffering analog inputs/outputs of 10–14-bit ADCs and DACs in medical ultrasound or PET imaging front-ends. IC Role / Device Role / Timing Role: High-fidelity signal conditioner preserving dynamic range and linearity between converter and signal chain. Use Value: Delivers −74 dBc THD at 10 MHz and 1.9 nV/√Hz noise-critical for maintaining SNR in wide-dynamic-range imaging systems. |
| DC Restoration Circuit | Ultrasound Signal Chain |
|
Use Scenario: Re-establishing DC level in AC-coupled video paths after clamping or sync separation stages. IC Role / Device Role / Timing Role: Precision op amp restoring baseline with minimal offset drift (3 mV max input offset) and high CMRR (66 dB). Use Value: Maintains black-level accuracy over temperature (5 µV/°C drift) and supply variation-ensuring consistent video contrast. |
Use Scenario: Amplifying low-amplitude, high-frequency echo signals in portable ultrasound beamformers. IC Role / Device Role / Timing Role: Wideband, low-noise gain stage operating at 10–20 MHz with fast transient response for time-of-flight measurement. Use Value: 120 MHz bandwidth and 25 ns settling support precise pulse-echo timing resolution required for sub-millimeter depth accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed video amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS3091DR | Higher slew rate (6000 V/µs), lower 0.1 dB bandwidth (210 MHz @ G = +2), no guaranteed differential gain/phase spec. | Better suited for ultrafast pulse applications; less validated for broadcast video compliance. | Select THS3091DR when maximum slew rate dominates over video fidelity specs. |
| LMH6702MA | Lower power (12.5 mA vs. 16.5 mA), similar 120 MHz bandwidth, but higher differential gain error (0.03% vs. 0.01%) at 3.58 MHz. | Acceptable for non-broadcast video; not recommended for NTSC/PAL color-critical systems. | Choose LMH6702MA for cost-sensitive, non-broadcast video where 0.03% gain error is tolerable. |
Compared with THS3091DR and LMH6702MA, AD811ARZ-16-REEL uniquely combines broadcast-validated 0.01% differential gain/phase, current-feedback bandwidth stability across gain, and proven performance into 75 Ω video loads-making it the preferred choice for color-accurate video infrastructure where specification compliance is mandatory.
Availability
AD811ARZ-16-REEL is available at Aetrix Electronics and suitable for video crosspoint switchers, medical ultrasound front-ends, and HDTV broadcast systems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for production programs.
Supply support for AD811ARZ-16-REEL 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, with decades of expertise in precision amplifiers and signal conditioning.
The AD811 belongs to Analog Devices' high-speed video op amp product line, engineered specifically for broadcast-grade video signal integrity, differential gain/phase accuracy, and robust drive capability into standard video impedances.
FAQ
What is the maximum supply voltage rating for AD811ARZ-16-REEL?
The AD811ARZ-16-REEL has an absolute maximum supply voltage rating of ±18 V. Operation beyond this risks permanent damage. The device is fully specified across ±4.5 V to ±18 V, with typical performance validated at ±5 V and ±15 V. Derating curves in the datasheet must be observed for thermal safety at elevated ambient temperatures.
Does AD811ARZ-16-REEL support single-supply operation?
No, AD811ARZ-16-REEL is designed exclusively for dual-supply operation (±VS). It does not support true single-supply configurations. The common-mode input voltage range extends to ±VS, and output swing is symmetrical about ground-requiring both positive and negative rails for proper biasing and signal handling.
What is the purpose of the NC pins on AD811ARZ-16-REEL?
All NC pins (1, 2, 4, 7, 8, 9, 10, 11, 12, 13, 15, 16) on AD811ARZ-16-REEL are internally unconnected. Per the datasheet, they must remain unconnected-no routing, grounding, or capacitive loading is permitted, as doing so may degrade performance or cause instability.
Can AD811ARZ-16-REEL drive a 50 Ω load?
Yes, AD811ARZ-16-REEL can drive a 50 Ω load, though its video-optimized specifications (e.g., differential gain/phase) are characterized at 75 Ω and 150 Ω. At ±15 V supplies, it delivers ±12 V swing into high-Z loads and ≥100 mA output current-sufficient for 50 Ω operation with appropriate gain and feedback resistor selection per Table 3 in the datasheet.
Is AD811ARZ-16-REEL suitable for DC-coupled video applications?
Yes, AD811ARZ-16-REEL is well-suited for DC-coupled video applications due to its low input offset voltage (3 mV max), low offset drift (5 µV/°C), and high CMRR (66 dB at ±15 V). These characteristics ensure stable black-level reference and minimal baseline shift-essential for DC restoration and RGB component video paths.
AD811ARZ-16-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Current Feedback
- Output Type:
- -
- Number of Circuits:
- 1
- -3db Bandwidth:
- 140 MHz
- Slew Rate:
- 2500V/µs
- Current - Supply:
- 16.5 mA
- Current - Output / Channel:
- 100 mA
- Voltage - Supply, Single/Dual (±):
- ±4.5V ~ 18V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 16-SOIC
AD811ARZ-16-REEL FAQ
1.How can I place an order for AD811ARZ-16-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD811ARZ-16-REEL 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 AD811ARZ-16-REEL reliable?
The price and inventory of AD811ARZ-16-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD811ARZ-16-REEL is usually 5 days.
3.What payment methods are accepted for AD811ARZ-16-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD811ARZ-16-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD811ARZ-16-REEL?
AD811ARZ-16-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD811ARZ-16-REEL 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 AD811ARZ-16-REEL?
For technical support, including AD811ARZ-16-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD811ARZ-16-REEL requirements.
6.How does Aetrix verify that AD811ARZ-16-REEL is sourced from the original manufacturer or authorized distributors?
All AD811ARZ-16-REEL 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 AD811ARZ-16-REEL meets industry standards.
7.What is the process for return or replacement of AD811ARZ-16-REEL?
All AD811ARZ-16-REEL units undergo pre-shipment inspection (PSI). If there is an issue with AD811ARZ-16-REEL, 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 AD811ARZ-16-REEL part is unused and in its original packaging.
Return procedure for AD811ARZ-16-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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