Overview
The AD8553ARMZ-R2, produced by Analog Devices Inc., is a precision instrumentation amplifier designed for high-accuracy applications. This amplifier features auto-zeroing technology, which significantly reduces offset voltage and drift, making it ideal for use in precision instrumentation, medical devices, and various sensor applications. It operates on a single supply from 1.8V to 5.5V and is available in a compact 10-lead MSOP package.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Supply Voltage | 1.8V to 5.5V | |
| Offset Voltage | 25 µV max | |
| Input Offset Drift | 0.1 µV/°C max | |
| Common Mode Rejection Ratio (CMRR) | 120 dB min @ G=100 | |
| Noise | 0.7 µV p-p (0.01Hz to 10Hz) | |
| Gain Range | 1 to 10,000 | |
| Output Stage | Rail-to-Rail Output | |
| Shutdown Current | < 4 µA | In shutdown mode |
| Operating Temperature Range | -40°C to +85°C | |
| Package Type | 10-Lead MSOP (RMZ-10) |
Key Features
- Low Offset Voltage and Drift: The AD8553 features a low offset voltage of 25 µV and an input offset drift of 0.1 µV/°C, ensuring high accuracy over a wide temperature range.
- High CMRR: A common mode rejection ratio of 120 dB minimizes the impact of common-mode signals.
- Low Noise: The amplifier has a low voltage noise of 0.7 µV p-p from 0.01Hz to 10Hz, making it suitable for precision applications.
- Rail-to-Rail Output: The output stage can swing to both supply rails, enhancing the dynamic range of the amplifier.
- Shutdown Mode: A power-saving shutdown mode reduces the total supply current to less than 4 µA.
- Compact Package: Available in a 10-lead MSOP package, ideal for space-critical and portable systems.
Applications
- Precision Instrumentation: Suitable for use in precision instrumentation due to its low noise and high accuracy.
- Medical Instrumentation: Ideal for medical devices such as blood pressure monitors and other portable medical instruments.
- Sensors and Transducers: Used in strain gage amplifiers, pressure sensors, and thermocouple amplifiers.
- Laser Diode Control Loops: Applicable in control loops for laser diodes.
- Weigh Scales and Pressure Sensors: Utilized in weigh scales and various pressure sensing applications.
Q & A
- What is the supply voltage range for the AD8553ARMZ-R2?
The AD8553ARMZ-R2 operates on a single supply from 1.8V to 5.5V.
- What is the typical offset voltage of the AD8553ARMZ-R2?
The typical offset voltage is 25 µV.
- How does the AD8553ARMZ-R2 achieve high CMRR?
The AD8553ARMZ-R2 achieves a high CMRR of 120 dB due to its auto-zeroing technology and careful design of the input stage.
- What is the noise performance of the AD8553ARMZ-R2?
The amplifier has a low voltage noise of 0.7 µV p-p from 0.01Hz to 10Hz.
- Does the AD8553ARMZ-R2 have a shutdown mode?
Yes, it has a power-saving shutdown mode that reduces the total supply current to less than 4 µA.
- What is the operating temperature range of the AD8553ARMZ-R2?
The operating temperature range is from -40°C to +85°C.
- In what package is the AD8553ARMZ-R2 available?
The AD8553ARMZ-R2 is available in a 10-lead MSOP package.
- How is the gain of the AD8553ARMZ-R2 set?
The gain is set according to the equation G = 2 * (R2/R1), where R1 and R2 are external resistors.
- What are some common applications of the AD8553ARMZ-R2?
Common applications include precision instrumentation, medical instrumentation, strain gage amplifiers, pressure sensors, and thermocouple amplifiers.
- Why is the AD8553ARMZ-R2 suitable for portable systems?
It is suitable due to its low power consumption, compact package, and rail-to-rail output stage.
