Overview
The AD8228ARZ is a precision instrumentation amplifier produced by Analog Devices Inc. This device is designed for high accuracy and stability, making it suitable for a wide range of applications that require precise signal amplification. The AD8228ARZ operates with both single and dual power supplies, ranging from 4.6 V to 36 V and ±2.3 V to ±18 V, respectively. It features internal, laser-trimmed gain setting resistors, which ensure high gain accuracy and minimal gain drift.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | 8-SOIC (0.154", 3.90mm Width) | |
| Number of Pins | 8 | |
| Supply Voltage | 4.6 V ~ 36 V, ±2.3 V ~ ±18 V | V |
| Input Offset Voltage (Vos) | 90 µV | µV |
| Input Bias Current | 500 pA | pA |
| Common Mode Rejection Ratio (CMRR) | 100 dB | dB |
| Power Supply Rejection Ratio (PSRR) | 104 dB | dB |
| Slew Rate | 2.5 V/µs | V/µs |
| Gain Bandwidth Product | 650 kHz | kHz |
| Quiescent Current | 850 µA | µA |
| Output Current per Channel | 18 mA | mA |
| Operating Temperature Range | -40°C to +85°C | °C |
Key Features
- High precision with low gain drift (2 ppm/°C) and low input offset voltage (50 µV maximum).
- Pin strappable gains of 10 and 100, allowing for flexible application use.
- Wide power supply range: 4.6 V to 36 V and ±2.3 V to ±18 V, making it suitable for various power supply configurations.
- Low noise performance: 8 nV/√Hz at 1 kHz (G = 100).
- High common-mode rejection ratio (CMRR) of 100 dB and power supply rejection ratio (PSRR) of 104 dB.
- Available in 8-lead SOIC packages, with surface mount capability.
Applications
- Weigh scales: For precise weight measurements and signal amplification.
- Industrial process controls: To amplify signals from various sensors and transducers.
- Bridge amplifiers: Suitable for strain gauge and bridge circuit applications.
- Precision data acquisition systems: For accurate signal amplification in data acquisition systems.
- Medical instrumentation: Used in medical devices requiring high precision and stability.
- Transducer interfaces: To interface with various transducers and amplify their output signals).
Q & A
- What is the AD8228ARZ used for?
The AD8228ARZ is a precision instrumentation amplifier used in applications requiring high accuracy and stability, such as weigh scales, industrial process controls, bridge amplifiers, precision data acquisition systems, and medical instrumentation).
- What are the available gain settings for the AD8228ARZ?
The AD8228ARZ has pin strappable gains of 10 and 100, allowing for flexible application use).
- What is the power supply range for the AD8228ARZ?
The AD8228ARZ operates with power supplies ranging from 4.6 V to 36 V and ±2.3 V to ±18 V).
- What is the input offset voltage of the AD8228ARZ?
The input offset voltage of the AD8228ARZ is 90 µV).
- What is the common-mode rejection ratio (CMRR) of the AD8228ARZ?
The CMRR of the AD8228ARZ is 100 dB).
- What is the slew rate of the AD8228ARZ?
The slew rate of the AD8228ARZ is 2.5 V/µs).
- What is the gain bandwidth product of the AD8228ARZ?
The gain bandwidth product of the AD8228ARZ is 650 kHz).
- What is the operating temperature range for the AD8228ARZ?
The operating temperature range for the AD8228ARZ is -40°C to +85°C).
- What package types are available for the AD8228ARZ?
The AD8228ARZ is available in 8-lead SOIC packages).
- Is the AD8228ARZ suitable for medical instrumentation?
Yes, the AD8228ARZ is suitable for medical instrumentation due to its high precision and stability).
