Overview
The AD8223ARMZ-R7, produced by Analog Devices Inc., is a single-supply, low-cost instrumentation amplifier. It is designed to deliver rail-to-rail output swing on a single supply, ranging from 3 V to 24 V, and also performs well with dual supply voltages from ±2 V to ±12 V. This amplifier is notable for its low power consumption of 1.5 mW at 3 V, making it ideal for battery-powered applications. The AD8223 replaces discrete instrumentation amplifier designs, offering superior linearity, temperature stability, and reliability in a compact package.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range (Single Supply) | 3 V to 24 V | V |
| Supply Voltage Range (Dual Supply) | ±2 V to ±12 V | V |
| Quiescent Current | 350 to 500 μA | μA |
| Input Bias Current | 25 nA (maximum) | nA |
| Input Noise (RTI) at 1 kHz | 30 nV/√Hz | nV/√Hz |
| Gain Range | 5 to 1000 | V/V |
| Common Mode Rejection Ratio (CMRR) | 86 dB | dB |
| Power Supply Rejection Ratio (PSRR) | 80 dB | dB |
| Operating Temperature Range | -40°C to +85°C | °C |
| Package Type | 8-Lead MSOP |
Key Features
- Single-Supply Operation: The AD8223 can operate on a single supply from 3 V to 24 V and also supports dual supply voltages from ±2 V to ±12 V.
- Low Power Consumption: It consumes only 1.5 mW at 3 V, making it suitable for battery-powered applications.
- Rail-to-Rail Output Swing: Maximizes the dynamic range when operating from low supply voltages.
- Simple Gain Setting: The gain can be set with a single external resistor, allowing gains from 5 to 1000.
- Wide Input Common-Mode Range: Can amplify signals with a common-mode voltage up to 150 mV below ground.
- High Linearity and Temperature Stability: Offers superior linearity and temperature stability, replacing discrete instrumentation amplifier designs.
Applications
The AD8223 is versatile and can be used in various applications, including:
- Battery-Powered Devices: Due to its low power consumption, it is ideal for battery-powered applications.
- Instrumentation and Measurement: Suitable for instrumentation and measurement applications requiring high accuracy and stability.
- Smart Industry and Automation: Can be used in smart industry and automation applications where precise signal amplification is required.
- Digital Health and Medical Devices: Applicable in medical devices and digital health applications where low power and high precision are crucial).
Q & A
- What is the supply voltage range for the AD8223?
The AD8223 can operate on a single supply from 3 V to 24 V and also supports dual supply voltages from ±2 V to ±12 V.
- How is the gain set for the AD8223?
The gain can be set with a single external resistor, allowing gains from 5 to 1000).
- What is the input bias current of the AD8223?
The input bias current is 25 nA (maximum)).
- What is the common-mode rejection ratio (CMRR) of the AD8223?
The CMRR is 86 dB).
- What is the operating temperature range for the AD8223?
The operating temperature range is -40°C to +85°C).
- What package types are available for the AD8223?
The AD8223 is available in 8-Lead MSOP and 8-Lead SOIC packages).
- What is the power consumption of the AD8223 at 3 V?
The power consumption is 1.5 mW at 3 V).
- Can the AD8223 amplify signals below ground?
Yes, the AD8223 can amplify signals with a common-mode voltage up to 150 mV below ground).
- What is the slew rate of the AD8223?
The slew rate is 0.3 V/μs).
- Is the AD8223 suitable for battery-powered applications?
Yes, due to its low power consumption, it is ideal for battery-powered applications).
