Overview
The AD8552ARU-REEL, produced by Analog Devices Inc., is a dual operational amplifier that belongs to the AD8551/AD8552/AD8554 family of zero-drift amplifiers. These amplifiers are known for their ultralow offset voltage, drift, and bias current, making them ideal for high-precision applications. The AD8552 features rail-to-rail input and output swings and operates from a single supply voltage ranging from 2.7 V to 5 V. This amplifier combines low cost with high accuracy, eliminating the need for external capacitors and offering benefits similar to those of more expensive auto-zeroing or chopper-stabilized amplifiers.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage | 2.7 V to 5 V |
| Supply Current per Op Amp | 700 μA |
| Offset Voltage | 1 μV |
| Offset Voltage Drift | 0.005 μV/°C |
| Input Offset Current | 10 pA to 50 pA |
| Common-Mode Rejection Ratio (CMRR) | 115 dB to 130 dB |
| Large Signal Voltage Gain | 110 dB to 140 dB |
| Output Voltage High (VOH) | 4.99 V (RL = 100 kΩ to GND) |
| Overload Recovery Time | 50 μs |
| Operating Temperature Range | -40°C to +125°C |
Key Features
- Ultralow offset voltage of 1 μV and drift of 0.005 μV/°C.
- Rail-to-rail input and output swings.
- No external capacitors required.
- Low supply current of 700 μA per op amp.
- Fast overload recovery time of 50 μs.
- High common-mode rejection ratio (CMRR) and large signal voltage gain.
Applications
- Temperature sensors.
- Pressure sensors.
- Precision current sensing.
- Strain gage amplifiers.
- Medical instrumentation.
- Thermocouple amplifiers.
Q & A
- What is the supply voltage range for the AD8552? The AD8552 operates from a single supply voltage ranging from 2.7 V to 5 V.
- What is the offset voltage of the AD8552? The offset voltage is 1 μV.
- What is the input offset current of the AD8552? The input offset current ranges from 10 pA to 50 pA.
- Does the AD8552 require external capacitors? No, the AD8552 does not require external capacitors.
- What is the common-mode rejection ratio (CMRR) of the AD8552? The CMRR is between 115 dB and 130 dB.
- What are the typical applications of the AD8552? Typical applications include temperature sensors, pressure sensors, precision current sensing, strain gage amplifiers, medical instrumentation, and thermocouple amplifiers.
- What is the operating temperature range of the AD8552? The operating temperature range is -40°C to +125°C.
- How long does it take for the AD8552 to recover from overload? The overload recovery time is 50 μs.
- What is the supply current per op amp for the AD8552? The supply current per op amp is 700 μA.
- What are the key benefits of using the AD8552? The key benefits include ultralow offset voltage, low drift, and no need for external capacitors, making it suitable for high-precision applications.
