Overview
The AD8551ARZ-REEL7, produced by Analog Devices Inc., is a zero-drift, single-supply operational amplifier that offers high accuracy and low cost. This device is part of the AD8551/AD8552/AD8554 family, which provides the benefits of auto-zeroing or chopper-stabilized amplifiers without the need for external capacitors. It features ultralow offset voltage, drift, and bias current, making it ideal for applications requiring high precision.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Supply Voltage | 2.7 V to 5 V | Single Supply |
| Offset Voltage | 1 μV | - |
| Offset Voltage Drift | 0.005 μV/°C | -40°C ≤ TA ≤ +125°C |
| Input Offset Current | 10 pA to 50 pA | -40°C ≤ TA ≤ +125°C |
| Common-Mode Rejection Ratio (CMRR) | 115 dB to 130 dB | VCM = 0 V to 5 V, -40°C ≤ TA ≤ +125°C |
| Large Signal Voltage Gain | 110 dB to 140 dB | RL = 10 kΩ, VO = 0.3 V to 4.7 V, -40°C ≤ TA ≤ +125°C |
| Output Voltage High | 4.975 V | RL = 100 kΩ to GND, VDD = 5 V |
| Operating Temperature Range | -40°C to +125°C | - |
| Package Type | 8-Pin SOIC | - |
Key Features
- Rail-to-Rail Input and Output Swing: Ensures full signal range utilization.
- Low Offset Voltage and Drift: 1 μV offset voltage and 0.005 μV/°C drift.
- No External Capacitors Required: Simplifies circuit design.
- Single Supply Operation: Compatible with 2.7 V to 5 V supply voltage.
- High CMRR and PSRR: Excellent common-mode and power supply rejection ratios.
- Low Supply Current: 700 μA per op amp.
- Fast Overload Recovery Time: 50 μs recovery time.
Applications
- Temperature Sensors: High accuracy for temperature measurement.
- Pressure Sensors: Precision sensing in pressure measurement applications.
- Precision Current Sensing: Accurate current measurement.
- Strain Gage Amplifiers: Used in strain gage applications requiring high precision.
- Medical Instrumentation: Suitable for medical devices due to high accuracy and low noise.
- Thermocouple Amplifiers: Ideal for thermocouple-based temperature measurements.
Q & A
- What is the typical offset voltage of the AD8551ARZ-REEL7?
The typical offset voltage is 1 μV.
- What is the operating temperature range of the AD8551ARZ-REEL7?
The operating temperature range is -40°C to +125°C.
- Does the AD8551ARZ-REEL7 require external capacitors?
No, external capacitors are not required.
- What is the common-mode rejection ratio (CMRR) of the AD8551ARZ-REEL7?
The CMRR is 115 dB to 130 dB.
- What is the package type of the AD8551ARZ-REEL7?
The package type is 8-Pin SOIC.
- What are the typical applications of the AD8551ARZ-REEL7?
Typical applications include temperature sensors, pressure sensors, precision current sensing, strain gage amplifiers, medical instrumentation, and thermocouple amplifiers.
- What is the supply current of the AD8551ARZ-REEL7?
The supply current is 700 μA per op amp.
- What is the overload recovery time of the AD8551ARZ-REEL7?
The overload recovery time is 50 μs.
- Is the AD8551ARZ-REEL7 suitable for single-supply operation?
- What is the input offset current of the AD8551ARZ-REEL7?
The input offset current is 10 pA to 50 pA.
