Overview
The AD8223BRMZ, produced by Analog Devices Inc., is an integrated single-supply instrumentation amplifier designed to deliver rail-to-rail output swing on a single supply ranging from 3 V to 24 V. This amplifier is optimized for operation from a single supply but also performs well with dual voltage supplies (±2 V to ±12 V). It features a wide input common-mode range, allowing it to amplify signals with a common-mode voltage up to 150 mV below ground. The AD8223BRMZ is simple to use, with the gain easily adjustable using a single resistor, and it offers superior linearity, temperature stability, and reliability in a compact package.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage Range | 3 V to 24 V (Single Supply), ±2 V to ±12 V (Dual Supply) |
| Gain Range | 5 to 1000 (set with one resistor) |
| Input Bias Current | 25 nA (maximum) |
| Voltage Noise | 30 nV/√Hz (RTI noise 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 2.5 V) |
| Settling Time to 0.01% | 18 μs (at G = 5, step size = 3.5 V) |
| Operating Temperature Range | −40°C to +85°C |
| Package Style | 8-lead MSOP, 8-lead SOIC |
| Bandwidth | 200 kHz |
| CMRR | 96 dB |
Key Features
- Rail-to-rail output swing on a single supply.
- Wide input common-mode range, allowing amplification of signals with a common-mode voltage up to 150 mV below ground.
- Gain adjustable with a single resistor, ranging from 5 to 1000.
- Low power consumption (1.5 mW at 3 V), making it ideal for battery-powered applications.
- High linearity, temperature stability, and reliability.
- Compact 8-lead MSOP and SOIC packages.
Applications
- Low power medical instrumentation.
- Transducer interfaces.
- Thermocouple amplifiers.
- Industrial process controls.
- Difference amplifiers.
- Low power data acquisition systems.
Q & A
- What is the supply voltage range for the AD8223BRMZ?
The AD8223BRMZ 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 of the AD8223BRMZ adjusted?
The gain of the AD8223BRMZ is adjusted using a single resistor. Without an external resistor, the gain is set to 5, and with an external resistor, gains up to 1000 can be achieved.
- What is the input bias current of the AD8223BRMZ?
The input bias current of the AD8223BRMZ is 25 nA maximum.
- What is the voltage noise of the AD8223BRMZ?
The voltage noise of the AD8223BRMZ is 30 nV/√Hz at 1 kHz.
- What is the maximum supply current of the AD8223BRMZ?
The maximum supply current of the AD8223BRMZ is 500 μA.
- What is the slew rate of the AD8223BRMZ?
The slew rate of the AD8223BRMZ is 0.2 V/μs at specified conditions.
- What is the settling time to 0.01% for the AD8223BRMZ?
The settling time to 0.01% for the AD8223BRMZ is 18 μs at a gain of 5 and a step size of 3.5 V.
- What is the operating temperature range of the AD8223BRMZ?
The operating temperature range of the AD8223BRMZ is −40°C to +85°C.
- In what packages is the AD8223BRMZ available?
The AD8223BRMZ is available in 8-lead MSOP and 8-lead SOIC packages.
- What are some common applications of the AD8223BRMZ?
The AD8223BRMZ is commonly used in low power medical instrumentation, transducer interfaces, thermocouple amplifiers, industrial process controls, difference amplifiers, and low power data acquisition systems.
