Overview
The ADA4817-1ACPZ-R7, produced by Analog Devices Inc., is a high-speed, low-noise operational amplifier. This device is part of the FastFET™ family and is known for its unity-gain stability and voltage feedback architecture. The ADA4817-1 is particularly suited for applications requiring ultrahigh speed and low noise, such as data acquisition front ends, photodiode preamps, and analog-to-digital converter (ADC) drivers. It operates over a wide supply voltage range from 5 V to 10 V and can be powered by either single or dual supplies.
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 mV (max) | |
| Linear Output Current | 40 mA | |
| Supply Quiescent Current per Amplifier | 19 mA (typical) | |
| Powered Down Supply Quiescent Current per Amplifier | 1.5 mA (typical) | |
| Supply Voltage Range | 5 V to 10 V | |
| 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 and low input capacitance of 1.3 pF (common mode) and 0.1 pF (differential mode)
- Low distortion: −90 dBc at 10 MHz (G = 1, RL = 1 kΩ)
- 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 with an exposed pad for improved thermal performance
Applications
- Photodiode amplifiers
- Data acquisition front ends
- Instrumentation
- Filters
- ADC drivers
- Output buffers
- Active filtering
Q & A
- What is the typical −3 dB bandwidth of the ADA4817-1? The typical −3 dB bandwidth 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 is 870 V/µs.
- What is the input bias current of the ADA4817-1? The input bias current is typically 2 pA.
- What is the voltage noise of the ADA4817-1 at 100 kHz? The voltage noise is 4 nV/√Hz at 100 kHz.
- What is the supply voltage range for the ADA4817-1? The supply voltage range is from 5 V to 10 V, supporting single or dual supplies.
- What are the typical 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 for the ADA4817-1? The operating temperature range is −40°C to +105°C.
- What are some common applications for the ADA4817-1? Common applications include photodiode amplifiers, data acquisition front ends, instrumentation, filters, ADC drivers, and output buffers.
- How does the ADA4817-1 handle power-down? The ADA4817-1 has a power-down feature with a typical quiescent current of 1.5 mA when powered down.
- What is the significance of the exposed pad in the ADA4817-1 packages? The exposed pad provides a low thermal resistance path to the PCB, enhancing heat transfer and reliability.
