AD811SQ/883B - 120MHz Video Op Amp | Analog Devices | 8-CERDIP
MPN: AD811SQ/883B ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $34.44 | $34.44 |
| 10 | $31 | $310.00 |
| 100 | $27.55 | $2,755.00 |
| 500 | $24.11 | $12,055.00 |
| 1,000 | $20.66 | $20,660.00 |
AD811SQ/883B Overview
A video operational amplifier is a type of op amp optimized for processing video signals, providing wide bandwidth, high slew rate, and low differential gain/phase errors. It is a subset of operational amplifiers, which are fundamental building blocks in analog signal processing. The AD811SQ/883B belongs to the category of current feedback amplifiers, which offer superior slew rate and bandwidth at higher gains compared to voltage feedback amplifiers.
Key features include a 0.1 dB gain flatness to 35 MHz (G = +2), a slew rate of 2500 V/μs, and a supply current of 16.5 mA. The device operates from dual supplies of ±4.5 V to ±18 V, with an output current of 100 mA. Its high bandwidth and low distortion make it ideal for video distribution, cable drivers, and professional video equipment.
The AD811SQ/883B uses a current feedback architecture, which provides excellent large-signal bandwidth and fast settling time. The device is designed to drive 150 Ω loads, typical for video cables, and maintains low differential gain and phase errors, ensuring accurate color reproduction in video signals. The MIL-STD-883B qualification ensures high reliability in harsh environments.
Typical applications include video line drivers, RGB distribution amplifiers, and professional video cameras. The device is also used in military avionics displays and radar systems where high-speed analog signal processing is required. Its wide supply range and robust design make it suitable for both commercial and military-grade equipment.
When designing with the AD811SQ/883B, ensure proper power supply decoupling with 0.1 μF ceramic capacitors close to the supply pins. The device's high bandwidth requires careful PCB layout to minimize parasitic capacitance and inductance, which can degrade performance. Additionally, the output stage can drive capacitive loads, but a series resistor may be needed to maintain stability.
Drop-in alternatives for AD811SQ/883B — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
AD811TQ/883B
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
AD811SQ
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
AD811SQ/883B Maximum Ratings & Electrical Characteristics
| Amplifier Type | Current Feedback |
| Number of Circuits | 1 |
| Slew Rate | 2500 V/μs |
| -3dB Bandwidth | 120 MHz (G=+2) |
| 0.1dB Gain Flatness | 35 MHz (G=+2) |
| Differential Gain | 0.01% |
| Differential Phase | 0.01° |
| Supply Voltage Range | ±4.5 V to ±18 V |
| Supply Current | 16.5 mA |
| Output Current | 100 mA |
| Package | 8-CERDIP (SQ) |
| Operating Temperature Range | -55°C to +125°C |
| MIL-STD-883B | Qualified |
| RoHS Status | Non-compliant (military grade) |
| Mounting Type | Through Hole |
AD811SQ/883B Pin Configuration
| Pin 1 | NC — No connection |
| Pin 2 | -IN — Inverting input |
| Pin 3 | +IN — Non-inverting input |
| Pin 4 | V- — Negative supply |
| Pin 5 | NC — No connection |
| Pin 6 | OUT — Output |
| Pin 7 | V+ — Positive supply |
| Pin 8 | NC — No connection |
Typical Applications
AD811SQ/883B is suitable for 6 applications: Video Line Driver, RGB Distribution Amplifier, Military Avionics Display, Professional Video Camera, Radar Signal Processing, Test and Measurement Equipment.
Video Line Driver
The AD811SQ/883B is ideal for video line drivers due to its 120 MHz bandwidth and 0.1 dB gain flatness to 35 MHz. It can drive 150 Ω loads with low differential gain and phase errors, ensuring signal integrity over long cable runs. Its high slew rate of 2500 V/μs preserves fast video transitions, making it suitable for broadcast and professional video distribution.
Recommended
RGB Distribution Amplifier
In RGB distribution amplifiers, the AD811SQ/883B provides three channels of high-bandwidth amplification with minimal crosstalk. Its differential gain of 0.01% and phase of 0.01° ensure accurate color reproduction. The device's current feedback architecture maintains stable gain across all channels, and its wide supply range allows flexible power design. This makes it a preferred choice for professional video walls and projectors.
Recommended
Military Avionics Display
The AD811SQ/883B is qualified to MIL-STD-883B, making it suitable for military avionics displays where reliability and wide temperature operation are critical. Its -55°C to +125°C range ensures performance in extreme environments. The hermetic CERDIP package protects against moisture and contaminants, and the high bandwidth supports high-resolution video in cockpit displays.
Recommended
Professional Video Camera
In professional video cameras, the AD811SQ/883B amplifies sensor signals with high fidelity. Its 120 MHz bandwidth and low distortion preserve fine image details, while the 0.1 dB gain flatness ensures consistent color accuracy. The device's high output current can drive subsequent processing stages, and its low power consumption is beneficial for battery-operated cameras.
Recommended
Radar Signal Processing
The AD811SQ/883B is used in radar signal processing chains for its high slew rate and wide bandwidth. It can amplify fast-rising pulses without distortion, crucial for accurate target detection. The military-grade qualification ensures reliable operation in defense systems. Its current feedback topology provides stable performance over temperature, making it suitable for phased-array radar modules.
Recommended
Test and Measurement Equipment
In test and measurement equipment, the AD811SQ/883B provides accurate amplification of high-frequency signals. Its 0.1 dB gain flatness to 35 MHz ensures minimal amplitude error in waveform measurements. The device's high slew rate allows it to reproduce fast edges in digital signals, making it useful in oscilloscope front-ends and signal generators.
Recommended
Recommended Products Summary
Engineering reference data for AD811SQ/883B — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AD811SE/883B | AD811TQ/883B | AD811SQ |
|---|---|---|---|---|
| Package | 8-CERDIP | 8-SOIC | 8-CERDIP | 8-CERDIP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Bandwidth (-3dB) | 120 MHz | 120 MHz | 120 MHz | 120 MHz |
| Slew Rate | 2500 V/μs | 2500 V/μs | 2500 V/μs | 2500 V/μs |
| Supply Voltage Range | ±4.5V to ±18V | ±4.5V to ±18V | ±4.5V to ±18V | ±4.5V to ±18V |
| Operating Temperature | -55°C to +125°C | -55°C to +125°C | -55°C to +125°C | -55°C to +125°C |
| MIL-STD-883B | Qualified | Qualified | Qualified | Not qualified |
| RoHS | Non-compliant | Non-compliant | Non-compliant | Non-compliant |
Key Differentiators
- MIL-STD-883B qualification (vs AD811SQ)
- Hermetic CERDIP package (vs AD811SE/883B)
- Wide temperature range (vs AD811AN)
Design Notes
For optimal high-frequency performance, place 0.1 μF ceramic capacitors close to the V+ and V- pins (pins 7 and 4). Use a ground plane to minimize parasitic inductance. Keep feedback resistor values low (e.g., 1 kΩ) to reduce noise and maintain stability. Avoid long traces on the input and output to prevent oscillation.
The AD811SQ/883B dissipates power based on supply voltage and output current. At ±15V supplies and 100 mA output, power dissipation can reach 3W. The CERDIP package has a thermal resistance of approximately 100°C/W, so ensure adequate airflow or heatsinking for high-power applications. Derate output current at high ambient temperatures.
Do not exceed the absolute maximum supply voltage of ±18V. The output can drive capacitive loads, but excessive capacitance may cause instability; add a series resistor (e.g., 50Ω) if driving long cables. Ensure the input common-mode range is not exceeded to avoid phase reversal. For MIL-STD-883B compliance, follow the handling and screening procedures specified in the standard.
Compliance Information
Military-grade component, not RoHS compliant due to lead in solder and package. MIL-STD-883B qualified.
