Overview
The AD8682ARMZ-R2 is a dual low power, precision operational amplifier produced by Analog Devices Inc. This device is part of the AD8682 and AD8684 family, which are known for their excellent speed and low supply currents. The AD8682 is particularly suited for applications requiring high precision and low power consumption.
Key Specifications
| Parameter | Typical Value | Maximum Value | Conditions |
|---|---|---|---|
| Supply Current per Amplifier | 250 μA | - | - |
| Slew Rate | 9 V/μs | - | RL = 10 kΩ, CL = 50 pF |
| Bandwidth | 3.5 MHz | - | - |
| Offset Voltage (VOS) | 0.35 mV | 1 mV @ 25°C | +25°C ≤ TA ≤ +85°C |
| Input Bias Current (IB) | 6 pA | 20 pA @ 25°C | -40°C ≤ TA ≤ +85°C |
| Input Offset Current (IOS) | 20 pA | 100 pA | -40°C ≤ TA ≤ +85°C |
| Common-Mode Rejection Ratio (CMRR) | 90 dB | 70 dB | -11 V ≤ VCM ≤ +15 V, -40°C ≤ TA ≤ +85°C |
| Large Signal Voltage Gain (AVO) | 20 V/mV | - | RL = 10 kΩ |
| Offset Voltage Drift (ΔVOS/ΔT) | 10 μV/°C | - | - |
| Bias Current Drift (ΔIB/ΔT) | 8 pA/°C | - | - |
Key Features
- Low supply current: 250 μA per amplifier maximum.
- High slew rate: 9 V/μs.
- High bandwidth: 3.5 MHz typical.
- Low offset voltage: 1 mV maximum at 25°C.
- Low input bias current: 20 pA maximum at 25°C.
- High common-mode rejection ratio (CMRR): 90 dB typical.
- Fast settling time and unity-gain stability.
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 typically 3.5 MHz.
- What is the maximum offset voltage at 25°C for the AD8682?
The maximum offset voltage at 25°C is 1 mV.
- What is the maximum input bias current at 25°C for the AD8682?
The maximum input bias current at 25°C is 20 pA.
- What is the typical common-mode rejection ratio (CMRR) for the AD8682?
The typical CMRR is 90 dB.
- What are some common applications of the AD8682?
Common applications include portable telecommunications, low power industrial and instrumentation, loop filters, active filters, precision filters, integrators, strain gauge amplifiers, portable medical instrumentation, and supply current monitoring.
- What is the operating temperature range for the AD8682?
The operating temperature range is -40°C to +85°C.
- What is the input voltage range for the AD8682?
The input voltage range is -11 V to +15 V.
- Is the AD8682 unity-gain stable?
Yes, the AD8682 is unity-gain stable.
