Overview
The AD8682ARMZ, produced by Analog Devices Inc., is a dual low power, precision JFET operational amplifier. This device is designed to offer excellent speed and precision at low supply currents, making it ideal for various applications requiring high performance and low power consumption.
The AD8682 features a JFET input stage, which ensures a very low input bias current, typically a few picoamps. This amplifier is unity-gain stable and offers a high slew rate and bandwidth, making it suitable for a wide range of applications.
Key Specifications
| Parameter | Typical Value | Maximum Value | Unit |
|---|---|---|---|
| Supply Current per Amplifier | 250 | 210 | μA |
| Slew Rate | 9 | - | V/μs |
| Bandwidth | 3.5 | - | MHz |
| Input Bias Current | 20 | 125 | pA |
| Input Offset Voltage | 0.35 | 1 | mV |
| Common-Mode Rejection Ratio (CMRR) | 90 | - | dB |
| Large Signal Voltage Gain | 20 | - | V/mV |
| Operating Temperature Range | -40 to +85 | - | °C |
| Supply Voltage Range | ±4.5 to ±18 | - | V |
| Package Type | 8-MSOP, 8-TSSOP | - | - |
Key Features
- Low supply current: 250 μA per amplifier maximum.
- High slew rate: 9 V/μs.
- High bandwidth: 3.5 MHz typical.
- Low input bias current: 20 pA maximum at 25°C.
- Low offset voltage: 1 mV maximum at 25°C.
- High common-mode rejection ratio (CMRR): 90 dB typical.
- Unity-gain stable.
- Fast settling time.
Applications
- Portable telecommunications.
- Low power industrial and instrumentation.
- Loop filters and active filters.
- Precision filters and integrators.
- Strain gauge amplifiers.
- Portable medical instrumentation.
- Supply current monitoring.
Q & A
- What is the typical supply current per amplifier for the AD8682?
The typical supply current per amplifier is 250 μA.
- What is the slew rate of the AD8682?
The slew rate is typically 9 V/μs.
- What is the bandwidth of the AD8682?
The bandwidth is 3.5 MHz typical.
- What is the input bias current of the AD8682?
The input bias current is 20 pA maximum at 25°C.
- What is the offset voltage of the AD8682?
The offset voltage is 1 mV maximum at 25°C.
- What is the common-mode rejection ratio (CMRR) of the AD8682?
The CMRR is 90 dB typical.
- Is the AD8682 unity-gain stable?
- What are the typical operating temperature and supply voltage ranges for the AD8682?
The operating temperature range is -40°C to +85°C, and the supply voltage range is ±4.5 V to ±18 V.
- What are some common applications of the AD8682?
The AD8682 is used in portable telecommunications, low power industrial and instrumentation, loop filters, active and precision filters, integrators, strain gauge amplifiers, portable medical instrumentation, and supply current monitoring.
- What package types are available for the AD8682?
The AD8682 is available in 8-MSOP and 8-TSSOP packages.
