Overview
The AD8223ARM-R7, produced by Analog Devices Inc., is an integrated single-supply instrumentation amplifier. It is designed to deliver rail-to-rail output swing on a single supply, ranging from 3 V to 24 V. This amplifier is simple to use, with the gain set by a single external resistor, allowing for gains from 5 to 1000. The AD8223 is optimized for low power consumption, making it ideal for battery-powered applications, and it offers superior linearity, temperature stability, and reliability in a compact package.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (Single) | 3 | 24 | V | |
| Supply Voltage (Dual) | ±2 | ±12 | V | |
| Supply Current | 500 | μA | ||
| Input Bias Current | 25 | nA | ||
| Input Noise (RTI) @ 1 kHz | 30 | nV/√Hz | ||
| Gain Range | 5 | 1000 | V/V | |
| Settling Time to 0.01% (G = 5) | 18 | μs | ||
| Settling Time to 0.01% (G = 1000) | 85 | μs | ||
| Small Signal -3 dB Bandwidth (G = 5) | 200 | kHz | ||
| Small Signal -3 dB Bandwidth (G = 1000) | 7 | kHz |
Key Features
- Single-supply operation with rail-to-rail output swing
- Gain set by a single external resistor (5 to 1000)
- Low power consumption (1.5 mW at 3 V)
- Wide input common-mode range (up to 150 mV below negative rail)
- Excellent performance on both single and dual supply voltages
- Compact 8-lead MSOP and SOIC packages
- Operating temperature range: −40°C to +85°C
Applications
The AD8223 is suitable for a variety of applications, including battery-powered devices, medical equipment, industrial control systems, and any scenario where low power consumption and high accuracy are required. Its rail-to-rail output and wide supply voltage range make it particularly useful in systems where dynamic range is critical.
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 or on a dual supply from ±2 V to ±12 V.
- How is the gain set for the AD8223? The gain is set by a single external resistor, allowing for 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 typical power consumption of the AD8223 at 3 V? The typical power consumption is 1.5 mW at 3 V.
- What are the package options for the AD8223? The AD8223 is available in 8-lead MSOP and SOIC packages.
- What is the operating temperature range for the AD8223? The operating temperature range is −40°C to +85°C.
- Can the AD8223 be used in battery-powered applications? Yes, the AD8223 is ideal for battery-powered applications due to its low power consumption and wide supply voltage range.
- What is the settling time for the AD8223 at a gain of 5? The settling time to 0.01% at a gain of 5 is 18 μs.
- What is the small signal -3 dB bandwidth for the AD8223 at a gain of 1000? The small signal -3 dB bandwidth at a gain of 1000 is 7 kHz.
- Is the AD8223 RoHS compliant? Yes, the AD8223 is RoHS compliant.
