Overview
The AD8223ARZ-R7 from Analog Devices Inc. is an integrated single-supply instrumentation amplifier designed to deliver high performance in a compact package. It features a rail-to-rail output swing and can operate from a single supply voltage ranging from 3V to 24V, as well as from a dual voltage supply of ±2V to ±12V. This amplifier is optimized for low power consumption, making it ideal for battery-powered applications and other scenarios where power efficiency is crucial. The AD8223ARZ-R7 replaces traditional discrete instrumentation amplifier designs, offering superior linearity, temperature stability, and reliability in a minimal footprint.
Key Specifications
| Attribute | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | AD8223ARZ-R7 |
| Package | 8-Lead SOIC-N |
| Supply Voltage | 3V to 24V (single supply), ±2V to ±12V (dual supply) |
| Input Bias Current | 25 nA maximum |
| Voltage Noise | 30 nV/√Hz at 1 kHz |
| Supply Current | 500 μA maximum |
| Slew Rate | 0.2 V/μs at TA = 25°C, −VS = 0V, +VS = +5V, and RL = 10 kΩ to 2.5V |
| Settling Time to 0.01% | 18 μs at G = 5, step size = 3.5V |
| Operating Temperature Range | −40°C to +85°C |
| Common Mode Rejection Ratio (CMRR) | 80 dB to 96 dB depending on gain |
| 3 dB Bandwidth | 200 kHz at G = 5 and G = 10, 70 kHz at G = 100, 7 kHz at G = 1000 |
Key Features
- Rail-to-rail output swing, maximizing dynamic range at low supply voltages.
- Wide input common-mode range, allowing amplification of signals with a 150 mV common-mode voltage below ground.
- Gain set with a single resistor, programmable for gains from 5 to 1000.
- Low power consumption (1.5 mW at 3 V), suitable for battery-powered applications.
- High linearity, temperature stability, and reliability in a compact 8-lead SOIC-N package.
Applications
- Low power medical instrumentation
- Transducer interface
- Thermocouple amplifiers
- Industrial process controls
- Difference amplifiers
- Low power data acquisition systems
Q & A
- What is the supply voltage range for the AD8223ARZ-R7?
The AD8223ARZ-R7 can operate from a single supply voltage ranging from 3V to 24V, as well as from a dual voltage supply of ±2V to ±12V.
- How is the gain set for the AD8223ARZ-R7?
The gain is set with a single resistor and can be programmed for gains from 5 to 1000).
- What is the input bias current of the AD8223ARZ-R7?
The input bias current is 25 nA maximum).
- What is the slew rate of the AD8223ARZ-R7?
The slew rate is 0.2 V/μs at TA = 25°C, −VS = 0V, +VS = +5V, and RL = 10 kΩ to 2.5V).
- What is the operating temperature range for the AD8223ARZ-R7?
The operating temperature range is −40°C to +85°C).
- What are some common applications for the AD8223ARZ-R7?
Common applications include low power medical instrumentation, transducer interface, thermocouple amplifiers, industrial process controls, difference amplifiers, and low power data acquisition systems).
- What is the package type of the AD8223ARZ-R7?
The package type is 8-Lead SOIC-N).
- What is the common mode rejection ratio (CMRR) of the AD8223ARZ-R7?
The CMRR ranges from 80 dB to 96 dB depending on the gain setting).
- How does the AD8223ARZ-R7 handle noise?
The AD8223ARZ-R7 has a voltage noise of 30 nV/√Hz at 1 kHz and current noise of 70 fA/√Hz at 1 kHz).
- What is the settling time to 0.01% for the AD8223ARZ-R7?
The settling time to 0.01% is 18 μs at G = 5, step size = 3.5V).
