Overview
The ADA4817-1ARDZ-RL, produced by Analog Devices Inc., is a high-performance, single-channel operational amplifier known as the ADA4817-1 FastFET™ amplifier. This device is part of the ADA4817 series, which includes both single (ADA4817-1) and dual (ADA4817-2) versions. The ADA4817-1 is a unity-gain stable, ultrahigh speed, voltage feedback amplifier with FET inputs, designed 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 | |
| Input Offset Voltage | 2.3 mV | |
| Supply Quiescent Current per Amplifier | 19 mA | |
| Powered Down Supply Quiescent Current per Amplifier | 1.5 mA | |
| Output Voltage Swing (RL = 100 Ω) | +VS − 1.5 V to −VS + 1.5 V | |
| Linear Output Current | 40 mA | |
| Operating Temperature Range | −40°C to +105°C |
Key Features
- High speed with a −3 dB bandwidth of 1050 MHz and a slew rate of 870 V/µs.
- Low noise: 4 nV/√Hz voltage noise and 2.5 fA/√Hz current noise at 100 kHz.
- Low input bias current of 2 pA typical.
- Low distortion: −90 dBc at 10 MHz (G = 1, RL = 1 kΩ).
- High input impedance and low input capacitance.
- Wide supply voltage range from 5 V to 10 V, with single or dual supply operation.
- Exposed pad for efficient heat transfer and increased reliability.
- Available in 3 mm × 3 mm, 8-lead LFCSP and 8-lead SOIC packages.
Applications
- Photodiode amplifiers and wideband transimpedance applications.
- Data acquisition front ends.
- Instrumentation.
- Filters.
- ADC drivers.
- Output buffers.
- Active filtering.
Q & A
- What is the −3 dB bandwidth of the ADA4817-1 amplifier?
The −3 dB bandwidth of the ADA4817-1 amplifier 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 typical input bias current of the ADA4817-1?
The typical input bias current of the ADA4817-1 is 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 is the maximum output current of the ADA4817-1?
The maximum output current of the ADA4817-1 is 40 mA.
- What are the available packages 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.
- Can the ADA4817-1 operate on a single or dual supply?
Yes, the ADA4817-1 can operate on either a single or dual supply with a voltage range from 5 V to 10 V.
- What are some common applications of the ADA4817-1?
Common applications include photodiode amplifiers, data acquisition front ends, instrumentation, filters, ADC drivers, and output buffers.
- How does the exposed pad on the ADA4817-1 package contribute to its performance?
The exposed pad provides a low thermal resistance path to the PCB, enabling more efficient heat transfer and increasing reliability.
