Overview
The AD8512AR from Analog Devices Inc. is a dual J-FET operational amplifier designed for high precision and reliability. It is available in an 8-pin SOIC package and is specified over the extended industrial temperature range of -40°C to +125°C. This amplifier is notable for its low noise, low input bias current, and fast settling times, making it suitable for a variety of precision applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | J-FET | |
| Number of Circuits | 2 | |
| Slew Rate | 20 V/μs | |
| Gain Bandwidth Product | 8 MHz | |
| Input Bias Current | 25 pA | |
| Input Offset Voltage | 100 μV | |
| Supply Current | 2.2 mA (x2 Channels) | |
| Output Current per Channel | 70 mA | |
| Supply Voltage Range | ±4.5 V to ±18 V | |
| Operating Temperature | -40°C to +125°C | |
| Mounting Type | Surface Mount | |
| Package | 8-SOIC |
Key Features
- Fast settling time: 500 ns to 0.1% and 0.9 μs to 0.01% for a 0 V to 10 V step.
- Low offset voltage: 100 μV maximum.
- Low input bias current: 25 pA typical.
- Low noise: 8 nV/√Hz at 1 kHz.
- No phase reversal: The amplifier does not suffer from output phase reversal when input voltages exceed the maximum common-mode voltage range.
- High output current: Up to 70 mA per channel.
- Wide dynamic range: Suitable for photodiode amplifier circuits and high-performance filters.
- Dual-supply operation: Compatible with supply voltages ranging from ±4.5 V to ±18 V.
Applications
- High impedance sensor amplification and precise current measurements using shunts.
- Medical instruments and electronic measurement equipment due to its dc precision, low noise, and fast settling time.
- Automated test equipment requiring high accuracy and reliability.
- Audio applications due to its low noise, low distortion, and high output current.
- High-performance filters and photodiode amplifier circuits).
Q & A
- What is the amplifier type of the AD8512AR?
The AD8512AR is a J-FET operational amplifier).
- What is the slew rate of the AD8512AR?
The slew rate of the AD8512AR is 20 V/μs).
- What is the gain bandwidth product of the AD8512AR?
The gain bandwidth product of the AD8512AR is 8 MHz).
- What is the input bias current of the AD8512AR?
The input bias current of the AD8512AR is 25 pA typical).
- What is the operating temperature range of the AD8512AR?
The operating temperature range of the AD8512AR is -40°C to +125°C).
- What package types are available for the AD8512AR?
The AD8512AR is available in 8-lead SOIC and 8-lead MSOP packages).
- Does the AD8512AR suffer from output phase reversal?
No, the AD8512AR does not suffer from output phase reversal when input voltages exceed the maximum common-mode voltage range).
- What are the typical applications of the AD8512AR?
The AD8512AR is typically used in high impedance sensor amplification, medical instruments, electronic measurement, automated test equipment, and audio applications).
- What is the supply voltage range for the AD8512AR?
The supply voltage range for the AD8512AR is ±4.5 V to ±18 V).
- What is the output current capability of the AD8512AR per channel?
The output current capability of the AD8512AR per channel is up to 70 mA).
