Overview
The AD8625AR from Analog Devices Inc. is a precision JFET input operational amplifier designed for high-performance applications. It features true single-supply operation, low power consumption, and rail-to-rail output, making it suitable for a variety of instrumentation and signal conditioning tasks. The amplifier is known for its high input impedance, low input bias current, and stable operation with capacitive loads up to 500 pF. This makes it an ideal choice for buffering CMOS DACs, ASICs, and other wide output swing devices in single-supply systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | J-FET | |
| Number of Circuits | 4 | |
| Output Type | Rail-to-Rail | |
| Slew Rate | 5 V/µs | |
| Gain Bandwidth Product | 5 MHz | |
| Input Bias Current | 0.25 pA | |
| Input Offset Voltage | 0.05 to 1.2 mV | |
| Supply Current | 630 µA (per amplifier) | |
| Output Current per Channel | ±10 mA | |
| Supply Voltage Range | 5 V to 26 V | |
| Operating Temperature | -40°C to 85°C | |
| Mounting Type | Surface Mount | |
| Package | 14-SOIC |
Key Features
- True single-supply operation with rail-to-rail input and output swing.
- Low power consumption with a supply current of less than 630 µA per amplifier.
- High input impedance and low input bias current (0.25 pA).
- Stable operation with capacitive loads up to 500 pF.
- Low noise and high common-mode rejection ratio (CMRR) of 66 to 87 dB.
- High gain bandwidth product of 5 MHz and a slew rate of 5 V/µs.
Applications
- Photodiode transimpedance amplification.
- ATE reference level drivers.
- Battery management systems.
- Line-powered and portable instrumentation.
- Remote sensor signal conditioning, including automotive sensors.
- Buffering CMOS DACs, ASICs, and other wide output swing devices in single-supply systems.
Q & A
- What is the input bias current of the AD8625AR?
The input bias current of the AD8625AR is 0.25 pA. - What is the slew rate of the AD8625AR?
The slew rate of the AD8625AR is 5 V/µs. - What is the gain bandwidth product of the AD8625AR?
The gain bandwidth product of the AD8625AR is 5 MHz. - What is the supply voltage range for the AD8625AR?
The supply voltage range for the AD8625AR is 5 V to 26 V. - What is the operating temperature range for the AD8625AR?
The operating temperature range for the AD8625AR is -40°C to 85°C. - What type of package does the AD8625AR come in?
The AD8625AR comes in a 14-SOIC package. - What are some common applications of the AD8625AR?
The AD8625AR is commonly used in photodiode transimpedance amplification, ATE reference level drivers, battery management, and remote sensor signal conditioning. - Can the AD8625AR handle capacitive loads?
Yes, the AD8625AR can handle capacitive loads up to 500 pF. - What is the output current per channel of the AD8625AR?
The output current per channel of the AD8625AR is ±10 mA. - Is the AD8625AR suitable for automotive applications?
Yes, the AD8625AR is suitable for automotive applications, including automotive sensors.
