ADA4817-1ARDZ - 1GHz FastFET Op Amp | Analog Devices
MPN: ADA4817-1ARDZ β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.5 | $6.50 |
| 10 | $5.85 | $58.50 |
| 100 | $4.95 | $495.00 |
| 500 | $4.2 | $2,100.00 |
| 1,000 | $3.75 | $3,750.00 |
Drop-in alternatives for ADA4817-1ARDZ β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
ADA4817-1ARDZ-R7
β Drop-Inπ Reference alternative (not in catalog)
ADA4817-2ARDZ
β Drop-Inπ Reference alternative (not in catalog)
OPA659
β Drop-Inπ Reference alternative (not in catalog)
LMH6629
β Drop-Inπ Reference alternative (not in catalog)
AD8000
β Drop-Inπ Reference alternative (not in catalog)
ADA4817-1ARDZ Maximum Ratings & Electrical Characteristics
| Amplifier Type | Voltage Feedback |
| Number of Circuits | 1 |
| Output Type | Single-ended |
| Slew Rate | 870 V/Β΅s |
| -3 dB Bandwidth | 1050 MHz |
| Input Bias Current | 2 pA |
| Input Capacitance | [DATA_NEEDED: Input Capacitance] |
| 0.1% Settling Time | 9 ns |
| Supply Voltage Range | [DATA_NEEDED: Supply Voltage Range] |
| Operating Temperature Range | [DATA_NEEDED: Operating Temperature Range] |
| Package | 8-SOIC-EP |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Unity-Gain Stable | Yes |
| FET Input | Yes |
ADA4817-1ARDZ Pin Configuration
| Pin 1 | OUT β Amplifier output |
| Pin 2 | -IN β Inverting input |
| Pin 3 | +IN β Non-inverting input |
| Pin 4 | V- β Negative supply |
| Pin 5 | NC β No connect |
| Pin 6 | NC β No connect |
| Pin 7 | V+ β Positive supply |
| Pin 8 | NC β No connect |
| Pin 9 | EP β Exposed pad (thermal) |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
ADA4817-1ARDZ is suitable for 6 applications: High-Speed Data Acquisition, Medical Instrumentation, High-Speed Signal Processing, Photodiode Amplifier, ADC Driver, Video Amplification.
High-Speed Data Acquisition
The ADA4817-1ARDZ's 1050 MHz bandwidth and 9 ns settling time make it ideal for driving high-speed ADCs in data acquisition systems. Its low input bias current minimizes errors when interfacing with high-impedance sensors, ensuring accurate signal capture. The amplifier's fast slew rate preserves signal integrity for large amplitude inputs, while its unity-gain stability simplifies buffer configurations. In a typical setup, the ADA4817-1ARDZ is placed between a sensor and an ADC, providing the necessary gain and buffering without introducing significant noise or distortion.
Recommended
Medical Instrumentation
In medical instrumentation, the ADA4817-1ARDZ is used in ultrasound imaging and MRI systems where high-speed signal processing is required. Its low input bias current of 2 pA is crucial for amplifying signals from high-impedance transducers without loading them. The amplifier's high bandwidth ensures that fast transient signals are accurately reproduced, which is essential for diagnostic imaging. The device's small SOIC-EP package allows for compact designs in portable medical devices, while its low noise performance maintains signal fidelity in sensitive measurements.
Recommended
High-Speed Signal Processing
The ADA4817-1ARDZ excels in high-speed signal processing applications such as radar, communications, and test equipment. Its 1050 MHz bandwidth and 870 V/Β΅s slew rate enable it to handle wideband signals with minimal distortion. The amplifier's FET inputs provide high input impedance, making it suitable for buffering high-frequency sources without loading. In radar receivers, the ADA4817-1ARDZ can be used in the IF stage to amplify signals before digitization, ensuring that fast pulses are captured accurately. Its fast settling time also makes it ideal for sample-and-hold circuits.
Recommended
Photodiode Amplifier
The ADA4817-1ARDZ is well-suited for photodiode amplifier circuits due to its low input bias current of 2 pA and high bandwidth. In optical receivers, the amplifier converts the photodiode current into a voltage with high speed and accuracy. The low input capacitance minimizes the effect of the photodiode's capacitance on the bandwidth, allowing for high-speed operation. The amplifier's low noise performance ensures that weak optical signals are not buried in noise. A typical transimpedance amplifier configuration uses the ADA4817-1ARDZ with a feedback resistor to set the gain, achieving high sensitivity and fast response.
Recommended
ADC Driver
The ADA4817-1ARDZ is an excellent choice for driving high-speed ADCs, such as the AD9680, due to its fast settling time and low distortion. In ADC driver circuits, the amplifier provides the necessary gain and buffering to match the ADC's input range while maintaining signal integrity. Its high bandwidth ensures that the ADC's Nyquist frequency is well within the amplifier's passband, preventing signal attenuation. The low input bias current reduces DC errors, and the unity-gain stability allows for simple buffer configurations. The amplifier's low output impedance drives the ADC's capacitive load without significant degradation.
Recommended
Video Amplification
The ADA4817-1ARDZ's 1050 MHz bandwidth makes it suitable for video amplification in broadcast and professional video equipment. It can buffer and amplify composite video signals with minimal distortion, preserving the signal's amplitude and phase. The amplifier's high slew rate ensures that fast video transitions are reproduced accurately, preventing smearing. Its low input bias current is beneficial when interfacing with high-impedance video sources. In a typical video distribution amplifier, the ADA4817-1ARDZ provides the necessary gain to drive multiple loads, maintaining signal quality over long cable runs.
Recommended
Recommended Products Summary
Engineering reference data for ADA4817-1ARDZ β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADA4817-1ARDZ-R7 | ADA4817-2ARDZ | OPA659 |
|---|---|---|---|---|
| Package | 8-SOIC-EP | 8-SOIC-EP | 8-SOIC-EP | 8-SOIC-EP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Number of Circuits | 1 | 1 | 2 | 1 |
| Bandwidth | 1050 MHz | 1050 MHz | 1050 MHz | 650 MHz |
| Slew Rate | 870 V/Β΅s | 870 V/Β΅s | 870 V/Β΅s | 2550 V/Β΅s |
| Input Bias Current | 2 pA | 2 pA | 2 pA | 2 pA |
| Settling Time | 9 ns | 9 ns | 9 ns | [DATA_NEEDED] |
| Unity-Gain Stable | Yes | Yes | Yes | Yes |
Key Differentiators
- Higher bandwidth than OPA659 (vs OPA659)
- Lower input bias current than AD8000 (vs AD8000)
- Single version with lower cost than dual (vs ADA4817-2ARDZ)
Design Notes
For optimal high-frequency performance, place the ADA4817-1ARDZ close to the signal source and ADC. Use a solid ground plane and minimize trace lengths. The exposed pad (EP) should be soldered to a large copper area to enhance thermal dissipation and reduce parasitic inductance.
Decouple the power supply pins with 0.1 Β΅F and 10 Β΅F capacitors placed as close as possible to the V+ and V- pins. This ensures stable operation at high frequencies and reduces power supply noise. Consider using ferrite beads for additional isolation in noisy environments.
Avoid exceeding the absolute maximum supply voltage and ensure the input common-mode voltage stays within the specified range. The FET inputs are sensitive to electrostatic discharge, so proper ESD protection is essential. Also, verify that the output load capacitance does not cause instability; use a small series resistor if driving capacitive loads.
Compliance Information
RoHS compliant per Analog Devices product page. No AEC-Q100 qualification for this part.
