Overview
The AD8552ARUZ is a dual-channel operational amplifier produced by Analog Devices Inc. This device is part of the AD855x family, which includes single, dual, and quad amplifiers. The AD8552 is known for its high accuracy and low cost, making it an ideal choice for various precision measurement applications. It features rail-to-rail input and output swings and operates from a single supply voltage ranging from 2.7 V to 5 V. The amplifier utilizes an auto-zero stabilization topology, ensuring low offset voltage and drift over a wide temperature range and its operating lifetime.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Offset Voltage | VOS | -40°C ≤ TA ≤ +125°C | 1 | - | 5 | μV |
| Input Bias Current | IB | -40°C ≤ TA ≤ +125°C | 10 | 50 | 70 | pA |
| Input Offset Current | IOS | -40°C ≤ TA ≤ +125°C | 20 | - | 70 | pA |
| Input Voltage Range | - | - | 0 | - | 5 | V |
| Common-Mode Rejection Ratio | CMRR | VCM = 0 V to +5 V | 115 | - | 130 | dB |
| Large Signal Voltage Gain | AVO | RL = 10 kΩ, VO = 0.3 V to 4.7 V | 110 | - | 140 | dB |
| Supply Current per Op Amp | - | - | - | 700 | - | μA |
| Overload Recovery Time | - | - | - | - | 50 | μs |
Key Features
- Low Offset Voltage and Drift: 1 μV offset voltage and 0.005 μV/°C drift, ensuring high accuracy over a wide temperature range.
- Rail-to-Rail Input and Output Swings: Allows the input common-mode voltage range to reach both supply rails and provides full output swing.
- Single Supply Operation: Operates from 2.7 V to 5 V, making it versatile for various applications.
- High Gain, CMRR, and PSRR: Offers high common-mode rejection ratio (CMRR) and power supply rejection ratio (PSRR) of up to 130 dB.
- Low Supply Current: Consumes only 700 μA per op amp, making it power-efficient.
- No External Capacitors Required: Simplifies circuit design and reduces component count.
- Auto-Zero Stabilization: Maintains low offset voltage over the operating lifetime through auto-zero stabilization topology.
Applications
- Temperature Sensors: Ideal for precise temperature measurements.
- Pressure Sensors: Suitable for pressure sensing applications requiring high accuracy.
- Precision Current Sensing: Used in applications where precise current measurement is critical.
- Strain Gage Amplifiers: Employed in strain gage measurements for structural analysis.
- Medical Instrumentation: Used in medical devices that require high precision and low noise.
- Thermocouple Amplifiers: Suitable for thermocouple-based temperature measurement systems.
Q & A
- What is the offset voltage of the AD8552ARUZ?
The offset voltage of the AD8552ARUZ is 1 μV.
- What is the input bias current of the AD8552ARUZ?
The input bias current is typically 50 pA, with a maximum of 70 pA over the temperature range of -40°C to +125°C.
- What is the common-mode rejection ratio (CMRR) of the AD8552ARUZ?
The CMRR is up to 130 dB.
- Does the AD8552ARUZ require external capacitors?
No, the AD8552ARUZ does not require external capacitors.
- What is the supply current per op amp for the AD8552ARUZ?
The supply current per op amp is 700 μA.
- What is the overload recovery time of the AD8552ARUZ?
The overload recovery time is 50 μs.
- What are the typical applications of the AD8552ARUZ?
The AD8552ARUZ is typically used in temperature sensors, pressure sensors, precision current sensing, strain gage amplifiers, medical instrumentation, and thermocouple amplifiers.
- What is the operating temperature range of the AD8552ARUZ?
The operating temperature range is -40°C to +125°C.
- What is the package type of the AD8552ARUZ?
The AD8552ARUZ comes in an 8-lead TSSOP package.
- How does the auto-zero stabilization topology benefit the AD8552ARUZ?
The auto-zero stabilization topology maintains the low offset voltage over the operating lifetime and across a wide temperature range, ensuring high accuracy and precision).
