Overview
The AD8572AR-REEL7, produced by Analog Devices Inc., is a dual operational amplifier (op amp) that belongs to the AD8571/AD8572/AD8574 family. These amplifiers are known for their ultralow offset, drift, and bias current, making them ideal for applications requiring high precision and low distortion. The AD8572 is a dual op amp, offering rail-to-rail input and output swings and can operate from a single supply voltage as low as 2.7 V up to 5 V. This device is particularly suited for sensitive measurement and automotive applications due to its high accuracy and stability over a wide temperature range.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Amplifiers | 2 (Dual) |
| Supply Voltage Range | 2.7 V to 5 V |
| Input Bias Current | 10 pA (typical) |
| Input Offset Voltage | 1 μV (typical) |
| Offset Voltage Drift | 0.005 μV/°C to 0.04 μV/°C |
| Common-Mode Rejection Ratio (CMRR) | 120 dB to 140 dB |
| Large Signal Voltage Gain | 125 dB to 145 dB |
| Output Voltage High | 4.99 V (RL = 100 kΩ to GND at 5 V supply) |
| Operating Temperature Range | –40°C to +125°C |
| Package Type | 8-SOIC (0.154, 3.90mm Width) |
Key Features
- Ultralow input bias current and offset voltage, ensuring high precision.
- Rail-to-rail input and output swings, allowing for full use of the supply voltage range.
- No external capacitors required for operation.
- Low supply current: 750 μA per op amp.
- Fast overload recovery time: 50 μs.
- Spread-spectrum, auto-zero technique to eliminate intermodulation distortion (IMD) effects.
- High common-mode rejection ratio (CMRR) and large signal voltage gain.
Applications
- Temperature sensors and thermocouple amplifiers.
- Pressure sensors and strain gage amplifiers.
- Precision current sensing.
- Medical instrumentation.
- Automotive applications requiring high precision and low distortion.
Q & A
- What is the supply voltage range for the AD8572AR-REEL7? The AD8572AR-REEL7 can operate from a single supply voltage as low as 2.7 V up to 5 V.
- What is the typical input bias current of the AD8572AR-REEL7? The typical input bias current is 10 pA.
- What is the typical input offset voltage of the AD8572AR-REEL7? The typical input offset voltage is 1 μV.
- Does the AD8572AR-REEL7 require external capacitors for operation? No, the AD8572AR-REEL7 does not require external capacitors for operation.
- What is the operating temperature range of the AD8572AR-REEL7? The operating temperature range is –40°C to +125°C.
- What are some common applications for the AD8572AR-REEL7? Common applications include temperature sensors, pressure sensors, precision current sensing, medical instrumentation, and automotive applications.
- What is the package type of the AD8572AR-REEL7? The package type is 8-SOIC (0.154, 3.90mm Width).
- How many amplifiers are included in the AD8572AR-REEL7? The AD8572AR-REEL7 includes 2 amplifiers (dual op amp).
- What is the common-mode rejection ratio (CMRR) of the AD8572AR-REEL7? The CMRR is 120 dB to 140 dB.
- What is the large signal voltage gain of the AD8572AR-REEL7? The large signal voltage gain is 125 dB to 145 dB.
