Overview
The AD8641AKSZ-REEL is a low-power, precision JFET input operational amplifier produced by Analog Devices Inc. This device is part of the AD8641 series, known for its extremely low input bias current and rail-to-rail output. It is designed to operate in single-supply systems and is suitable for a wide range of applications that require high precision and low power consumption.
The AD8641AKSZ-REEL is available in a 5-lead SC70 package, making it ideal for space-constrained designs. It features a gain bandwidth product of 3.5 MHz and a slew rate of 3 V/µs, ensuring high-speed performance. The amplifier is fully specified over the extended industrial temperature range of −40°C to +125°C, making it reliable in various environmental conditions.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Input Offset Voltage | 70 µV | - |
| Input Bias Current | 0.25 pA | - |
| Supply Voltage | 5 V to 26 V, ±2.5 V to ±13 V | - |
| Supply Current per Amplifier | 200 µA to 250 µA | -40°C to +125°C |
| Output Voltage High | 4.95 V (IL = 1 mA, -40°C to +125°C) | - |
| Output Voltage Low | 0.05 V (IL = 1 mA, -40°C to +125°C) | - |
| Output Current | ±6 mA | - |
| Gain Bandwidth Product | 3.5 MHz | - |
| Slew Rate | 3 V/µs | - |
| Phase Margin | 50 Degrees | - |
| Operating Temperature | -40°C to +125°C | - |
| Package | 5-lead SC70 | - |
Key Features
- Low input bias current: 0.25 pA, ensuring minimal current draw from the input signal.
- Rail-to-rail output: Allows the output to swing nearly to the supply rails, making it suitable for single-supply systems.
- High gain bandwidth product: 3.5 MHz, providing high-speed performance.
- Low noise: Voltage noise density of 2.5 µV/°C, suitable for precision applications.
- Low power consumption: Supply current per amplifier is 200 µA to 250 µA, ideal for battery-powered and low-power designs.
- High stability with capacitive loads: Stable with loads of more than 500 pF.
- Extended industrial temperature range: Fully specified from -40°C to +125°C.
Applications
- Line- and battery-powered instruments: Suitable for portable and low-power instrumentation.
- Photodiode amplifiers: Ideal for amplifying signals from photodiodes.
- Precision current sensing: Used in applications requiring accurate current measurement.
- Medical instrumentation: Suitable for medical devices due to its precision and low noise characteristics.
- Industrial controls: Used in industrial automation and control systems.
- Precision filters: Used in filter circuits requiring high precision and low noise.
- Portable audio: Suitable for audio amplification in portable devices.
- ATE (Automated Test Equipment): Used as reference level drivers in ATE applications.
Q & A
- What is the input bias current of the AD8641AKSZ-REEL?
The input bias current is 0.25 pA.
- What is the supply voltage range for the AD8641AKSZ-REEL?
The supply voltage range is 5 V to 26 V, and ±2.5 V to ±13 V.
- What is the gain bandwidth product of the AD8641AKSZ-REEL?
The gain bandwidth product is 3.5 MHz.
- What is the slew rate of the AD8641AKSZ-REEL?
The slew rate is 3 V/µs.
- What is the operating temperature range of the AD8641AKSZ-REEL?
The operating temperature range is -40°C to +125°C.
- In what package is the AD8641AKSZ-REEL available?
The AD8641AKSZ-REEL is available in a 5-lead SC70 package.
- What are some typical applications of the AD8641AKSZ-REEL?
Typical applications include line- and battery-powered instruments, photodiode amplifiers, precision current sensing, medical instrumentation, industrial controls, precision filters, portable audio, and ATE reference level drivers.
- How stable is the AD8641AKSZ-REEL with capacitive loads?
The AD8641AKSZ-REEL is stable with capacitive loads of more than 500 pF.
- What is the output current capability of the AD8641AKSZ-REEL?
The output current capability is ±6 mA.
- Is the AD8641AKSZ-REEL RoHS compliant?
Yes, the AD8641AKSZ-REEL is RoHS compliant.
