Features and Benefits
- High speed
- −3 dB bandwidth (G = 1, RL = 100 Ω): 1050 MHz
- Slew rate: 870 V/μs
- 0.1% settling time: 9 ns
- Input bias current: 2 pA typical
- Input capacitance
- Common-mode capacitance: 1.3 pF typical
- Differential mode capacitance: 0.1 pF typical
- Low input noise
- Voltage noise: 4 nV/√Hz at 100 kHz
- Current noise: 2.5 fA/√Hz at 100 kHz
- Low distortion: −90 dBc at 10 MHz (G = 1, RL = 1 kΩ)
- Linear output current: 40 mA
- Supply quiescent current per amplifier: 19 mA typical
- Powered down supply quiescent current per amplifier: 1.5 mA typical
The ADA4817-1 (single) and ADA4817-2 (dual) FastFET™ amplifiers are unity-gain stable, ultrahigh speed, voltage feedback amplifiers with FET inputs. These amplifiers were developed with the Analog Devices, Inc., proprietary eXtra fast complementary bipolar (XFCB) process, which allows the amplifiers to achieve ultralow noise (4 nV/√Hz; 2.5 fA/√Hz) as well as very high input impedances.
With 1.3 pF of input capacitance, low noise (4 nV/√Hz), low offset voltage (2 mV maximum), and 1050 MHz −3 dB bandwidth, the ADA4817-1/ADA4817-2 are ideal for data acquisition front ends as well as wideband transimpedance applications, such as photodiode preamps.
With a wide supply voltage range from 5 V to 10 V and the ability to operate on either single or dual supplies, the ADA4817-1/ADA4817-2 are designed to work in a variety of applications including active filtering and analog-to-digital converter (ADC) driving. The ADA4817-1 is available in a 3 mm × 3 mm, 8-lead LFCSP and 8-lead SOIC, and the ADA4817-2 is available in a 4 mm × 4 mm, 16-lead LFCSP. These packages feature a low distortion pinout that improves second harmonic distortion and simplifies circuit board layout. They also feature an exposed pad that provides a low thermal resistance path to the printed circuit board (PCB). The EPAD enables more efficient heat transfer and increases reliability. These products are rated to work over the extended industrial temperature range (−40°C to +105°C).
- Photodiode amplifiers
- Data acquisition front ends
- ADC drivers
- Output buffers
Markets and Technologies
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (2)
The ADMX2001 is a measurement module that simplifies the development of impedance measurement systems or can be used to enhance the capabilities of existing test platforms. Using high-performance mixed-signal and processing algorithms, the ADMX2001 can measure changes in capacitance as small as 0.1fF and resistance values up to 1GΩ, often required to test semiconductor devices, electronic components, and sensors. Moreover, built-in measurement algorithms enable the ADMX2001 to deliver fully calibrated complex impedance or admittance measurement results in various formats, including parallel and series combinations of resistance, capacitance, and inductance.
- Automated test equipment
- Semiconductor characterization
- Wafer acceptance test
- Electrical Impedance Spectroscopy
- Impedance network analysis
- Battery test
Features & Benefits
- Complex impedance measurements from 0.2Hz to 10 MHz
- High throughput
- Measurement time: 2.7ms
- 0.05% Basic Relative Accuracy
- Wide measurement range
- Resistance from 100μΩ to 1GΩ
- Capacitance from 100aF to 10F
- Inductance from 10pH to 100H
- Programmable test signal
- 16-bit amplitude adjustment up to 2.4V
- Frequency resolution of 0.2Hz
- 16-bit dc bias setting up to ±2.4V
- DC resistance measurements
- 18 impedance measurement formats for C, R, L, Z and Y
- Automated multi-point and parametric sweeps
- Calibration and fixture compensation functions
- Automated calibration routines for measurement traceability
- Calibration coefficient storage in non-volatile memory
- Compensation eliminates the effect of fixture parasitics
The Universal Single High Speed Amplifier Evaluation Boards are bare boards that enable users to quickly prototype a variety of amplifier circuits, which minimizes risk and reduces time to market. These boards are all RoHs Compliant. See ordering guide below on what board to order by lead count and package.
Tools & Simulations
Use the Analog Filter Wizard to design low-pass, high-pass, or band-pass filters with actual op amps in minutes. As you progress through the design process, you can observe the characteristics of your filter design from ideal specifications to real world circuit behavior. Quickly evaluate the tradeoffs in op amp specifications - including gain-bandwidth, noise, and supply current – to determine the best filter design for your requirements.
Use Photodiode Wizard to design a transimpedance amplifier circuit to interface with a photodiode. Select a photodiode from the library included in the tool, or enter custom photodiode specifications. Quickly observe tradeoffs between Bandwidth, Peaking (Q), and ENOB/SNR. Modify circuit parameters, and immediately see results in plots for pulse response, frequency response, and noise gain.
A utility to convert between standard units of power measurement and signal strength.
This tool estimates die temperature and power dissipation based on the supply voltages, ambient temperature, load characteristics, and package thermal data.
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StudentZone Articles (1)
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Rarely Asked Questions (5)
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Sample & Buy
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.