Overview
The AD8228ARZ-RL is a high-performance instrumentation amplifier produced by Analog Devices Inc. This component is designed to offer very high gain accuracy and low gain drift, making it ideal for applications that demand the best DC performance possible. The AD8228 operates on both single and dual supplies, with a wide power supply range of ±2.3 V to ±18 V, and is available in an 8-lead SOIC package.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | 8-SOIC (0.154, 3.90mm Width) | |
| Number of Channels | 1 | |
| Supply Voltage | ±2.3 V to ±18 V | V |
| Gain Range | 10 and 100 (pin strappable) | |
| Input Offset Voltage (Vos) | 50 μV (max) | μV |
| Input Offset Drift | 0.8 μV/°C (max) | μV/°C |
| Input Bias Current | 0.6 nA (max) | nA |
| Common Mode Rejection Ratio (CMRR) | 100 dB | dB |
| Bandwidth (–3 dB) | 650 kHz (G = 10) | kHz |
| Slew Rate | 2 V/μs | V/μs |
| Voltage Noise | 8 nV/√Hz @ 1 kHz (G = 100) | nV/√Hz |
| Operating Temperature Range | −40°C to +85°C (specified), −40°C to +125°C (operational) | °C |
Key Features
- High gain accuracy and low gain drift due to internal and laser-trimmed gain setting resistors.
- Wide power supply range: ±2.3 V to ±18 V, supporting both single and dual supplies.
- Pin strappable gains of 10 and 100.
- Low input offset voltage (50 μV max) and low input offset drift (0.8 μV/°C max).
- Low input bias current (0.6 nA max).
- High common-mode rejection ratio (100 dB).
- Low noise: 8 nV/√Hz @ 1 kHz (G = 100).
- High bandwidth (650 kHz, –3 dB at G = 10) and slew rate (2 V/μs).
- Operational over the entire industrial temperature range of −40°C to +85°C and up to +125°C.
Applications
- Weigh scales
- Industrial process controls
- Bridge amplifiers
- Precision data acquisition systems
- Medical instrumentation
- Strain gages and transducer interfaces
Q & A
- What is the AD8228ARZ-RL used for?
The AD8228ARZ-RL is a high-performance instrumentation amplifier used in applications requiring high gain accuracy and low gain drift, such as weigh scales, industrial process controls, and medical instrumentation.
- What are the available gain settings for the AD8228ARZ-RL?
The gain settings for the AD8228ARZ-RL are pin strappable and can be set to 10 or 100.
- What is the power supply range of the AD8228ARZ-RL?
The AD8228ARZ-RL operates on a wide power supply range of ±2.3 V to ±18 V, supporting both single and dual supplies.
- What is the input offset voltage of the AD8228ARZ-RL?
The input offset voltage of the AD8228ARZ-RL is 50 μV maximum.
- What is the common-mode rejection ratio (CMRR) of the AD8228ARZ-RL?
The CMRR of the AD8228ARZ-RL is 100 dB.
- What is the bandwidth of the AD8228ARZ-RL?
The bandwidth of the AD8228ARZ-RL is 650 kHz at a gain of 10.
- What is the slew rate of the AD8228ARZ-RL?
The slew rate of the AD8228ARZ-RL is 2 V/μs.
- What is the operating temperature range of the AD8228ARZ-RL?
The AD8228ARZ-RL is specified to operate from −40°C to +85°C and is operational up to +125°C.
- What package types are available for the AD8228ARZ-RL?
The AD8228ARZ-RL is available in an 8-lead SOIC package.
- What are some typical applications of the AD8228ARZ-RL?
Typical applications include weigh scales, industrial process controls, bridge amplifiers, precision data acquisition systems, and medical instrumentation.
