Overview
The ADA4817-1ARDZ-R7, produced by Analog Devices Inc., is a high-performance, low-noise, and ultrahigh-speed operational amplifier. This device is part of the ADA4817 family, which includes both single (ADA4817-1) and dual (ADA4817-2) configurations. The ADA4817-1 is a unity-gain stable, voltage feedback amplifier with FET inputs, developed using Analog Devices' proprietary eXtra fast complementary bipolar (XFCB) process. This technology enables the amplifier to achieve ultralow noise and very high input impedances, making it ideal for a variety of high-speed and low-noise applications.
Key Specifications
| Parameter | Typical Value | Unit |
|---|---|---|
| −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 |
| Input Capacitance (Common Mode) | 1.3 | pF |
| Input Capacitance (Differential Mode) | 0.1 | pF |
| Voltage Noise at 100 kHz | 4 | nV/√Hz |
| Current Noise at 100 kHz | 2.5 | fA/√Hz |
| Supply Voltage Range | 5 V to 10 V | V |
| Supply Quiescent Current per Amplifier | 19 | mA |
| Operating Temperature Range | −40°C to +105°C | °C |
Key Features
- Ultrahigh speed with a −3 dB bandwidth of 1050 MHz and a slew rate of 870 V/μs.
- Low noise performance with 4 nV/√Hz voltage noise and 2.5 fA/√Hz current noise at 100 kHz.
- High input impedance and low input capacitance (1.3 pF common mode, 0.1 pF differential mode).
- Low distortion with −90 dBc at 10 MHz (G = 1, RL = 1 kΩ).
- Linear output current of 40 mA and low supply quiescent current of 19 mA per amplifier.
- Wide supply voltage range from 5 V to 10 V, supporting single or dual supplies.
- Available in 3 mm × 3 mm, 8-lead LFCSP and 8-lead SOIC packages for the ADA4817-1, and 4 mm × 4 mm, 16-lead LFCSP for the ADA4817-2.
- Exposed pad for efficient heat transfer and increased reliability.
Applications
- Photodiode amplifiers and wideband transimpedance applications.
- Data acquisition front ends.
- Instrumentation and measurement systems.
- Active filtering and analog-to-digital converter (ADC) driving.
- Output buffers and general-purpose high-speed amplification.
Q & A
- What is the typical −3 dB bandwidth of the ADA4817-1?
The typical −3 dB bandwidth of the ADA4817-1 is 1050 MHz at a gain of 1 and a load resistance of 100 Ω.
- What is the slew rate of the ADA4817-1?
The slew rate of the ADA4817-1 is 870 V/μs.
- What is the input bias current of the ADA4817-1?
The input bias current of the ADA4817-1 is typically 2 pA.
- What is the voltage noise of the ADA4817-1 at 100 kHz?
The voltage noise of the ADA4817-1 at 100 kHz is 4 nV/√Hz.
- What are the available package options for the ADA4817-1?
The ADA4817-1 is available in 3 mm × 3 mm, 8-lead LFCSP and 8-lead SOIC packages.
- What is the operating temperature range of the ADA4817-1?
The operating temperature range of the ADA4817-1 is −40°C to +105°C.
- What are some common applications of the ADA4817-1?
The ADA4817-1 is commonly used in photodiode amplifiers, data acquisition front ends, instrumentation, active filtering, and ADC driving.
- Does the ADA4817-1 support single or dual supplies?
Yes, the ADA4817-1 supports both single and dual supplies with a voltage range from 5 V to 10 V.
- What is the significance of the exposed pad in the ADA4817-1's package?
The exposed pad provides a low thermal resistance path to the PCB, enabling more efficient heat transfer and increasing reliability.
- How does the ADA4817-1's low distortion pinout benefit circuit design?
The low distortion pinout improves second harmonic distortion and simplifies circuit board layout.
