Overview
The AD627AR from Analog Devices Inc. is a high-precision, micropower instrumentation amplifier designed for accurate measurement and versatile application. It operates on single and dual supply voltages ranging from +2.2 V to ±18 V, providing rail-to-rail output swing. This amplifier is notable for its low power consumption, with a maximum operating current of 85 μA, making it suitable for battery-powered and industrial applications. The AD627AR offers excellent ac and dc specifications, including low voltage offset, offset drift, gain error, and gain drift, ensuring minimal errors in the system.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Series | AD627 | |
| Number of Channels | 1 Channel | |
| 3 dB Bandwidth | 80 kHz (G = +5) | kHz |
| CMRR - Common Mode Rejection Ratio | 77 dB | dB |
| Ib - Input Bias Current | 3 nA | nA |
| Vos - Input Offset Voltage | 50 μV | μV |
| Supply Voltage - Max | 36 V | V |
| Supply Voltage - Min | 2.2 V | V |
| Operating Supply Current | 85 μA | μA |
| Minimum Operating Temperature | -40°C | °C |
| Maximum Operating Temperature | +85°C | °C |
| Mounting Style | SMD/SMT | |
| Package / Case | SOIC-8 | |
| Amplifier Type | Instrumentation Amplifier |
Key Features
- High Precision: The AD627AR offers low voltage offset, offset drift, gain error, and gain drift, ensuring high accuracy in measurements.
- Flexible Gain Setting: The gain can be set with a single external resistor, allowing gains from 5 to 1000.
- Rail-to-Rail Output Swing: Operates on single and dual supply voltages, providing full output swing from the supply rails.
- Low Power Consumption: Maximum operating current of 85 μA, making it suitable for battery-powered applications.
- Excellent CMRR: High common-mode rejection ratio (77 dB) ensures rejection of line noise and line harmonics up to 200 Hz.
- Compact Design: Uses less circuit board area and is cost-effective compared to discrete designs.
Applications
- Battery-Powered Systems: Ideal for applications where low power consumption is critical.
- Industrial Applications: Suitable for 4 mA to 20 mA loop-powered systems and other industrial environments.
- Medical Devices: High precision and low noise make it suitable for medical instrumentation.
- Aerospace and Defense: Reliable performance in a wide range of temperatures and supply voltages.
- Automotive Systems: Can be used in various automotive sensing and measurement applications.
Q & A
- What is the maximum operating supply current of the AD627AR?
The maximum operating supply current is 85 μA.
- What is the common-mode rejection ratio (CMRR) of the AD627AR?
The CMRR is 77 dB.
- What is the input offset voltage (Vos) of the AD627AR?
The input offset voltage is 50 μV.
- What is the gain range of the AD627AR?
The gain can be set from 5 to 1000 using an external resistor.
- What are the operating temperature ranges for the AD627AR?
The operating temperature range is from -40°C to +85°C.
- What is the package type of the AD627AR?
The package type is SOIC-8.
- Can the AD627AR operate on single and dual supply voltages?
Yes, it can operate on single and dual supply voltages from +2.2 V to ±18 V.
- What is the 3 dB bandwidth of the AD627AR at a gain of 5?
The 3 dB bandwidth is 80 kHz at a gain of 5.
- Is the AD627AR suitable for battery-powered applications?
Yes, due to its low power consumption, it is suitable for battery-powered applications.
- What is the input bias current of the AD627AR?
The input bias current is 3 nA.
