Overview
The AD8551ARM-REEL, produced by Analog Devices Inc., is a zero-drift, single-supply, rail-to-rail input/output operational amplifier. This device is part of the AD8551 family, which includes single, dual, and quad amplifier configurations. The AD8551 is known for its ultralow offset voltage, drift, and bias current, making it highly suitable for precision applications. It operates from a single supply voltage ranging from 2.7 V to 5 V and features auto-zero stabilization, which ensures high accuracy and minimal offset voltage error over a wide temperature range.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Supply Voltage | 2.7 to 5 | V |
| Input Offset Voltage | 1 | μV |
| Offset Voltage Drift | 0.005 to 0.04 | μV/°C |
| Input Bias Current | 10 to 50 | pA |
| Supply Current per Amplifier | 700 to 975 | μA |
| Gain Bandwidth Product | 1.5 | MHz |
| Slew Rate | 0.4 to 0.5 | V/μs |
| Common-Mode Rejection Ratio (CMRR) | 115 to 140 | dB |
| Operating Temperature Range | -40 to +125 | °C |
| Package Type | 8-Lead MSOP |
Key Features
- Zero-drift topology ensuring ultralow offset voltage and drift.
- Rail-to-rail input and output swings.
- Single-supply operation from 2.7 V to 5 V.
- Low supply current: 700 μA per amplifier.
- No external capacitors required.
- High common-mode rejection ratio (CMRR): 115 dB to 140 dB.
- Low input bias current: 10 pA to 50 pA.
- Fast slew rate: 0.4 V/μs to 0.5 V/μs.
Applications
- Temperature sensors.
- Pressure sensors.
- Precision current sensing.
- Strain gage amplifiers.
- Medical instrumentation.
- Thermocouple amplifiers.
- Sensitive measurement applications in harsh operating environments, such as automotive underhood and braking/suspension systems.
Q & A
- What is the supply voltage range for the AD8551?
The AD8551 operates from a single supply voltage ranging from 2.7 V to 5 V.
- What is the typical input offset voltage of the AD8551?
The typical input offset voltage is less than 1 μV.
- What is the offset voltage drift of the AD8551?
The offset voltage drift is 0.005 μV/°C to 0.04 μV/°C.
- What is the input bias current of the AD8551?
The input bias current ranges from 10 pA to 50 pA.
- What is the gain bandwidth product of the AD8551?
The gain bandwidth product is 1.5 MHz.
- What is the slew rate of the AD8551?
The slew rate is 0.4 V/μs to 0.5 V/μs.
- Does the AD8551 require external capacitors?
No, the AD8551 does not require external capacitors.
- What are some common applications of the AD8551?
Common 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 AD8551?
The operating temperature range is -40°C to +125°C.
- What package types are available for the AD8551?
The AD8551 is available in 8-Lead MSOP and 8-Lead SOIC packages.
