Overview
The AD8228BRZ-RL, produced by Analog Devices Inc., is a high-performance instrumentation amplifier known for its exceptional gain accuracy and low gain drift. This device is designed to operate with both single and dual power supplies, ranging from ±2.3 V to ±18 V, making it suitable for applications requiring high common-mode input voltages. The AD8228BRZ-RL features internal, laser-trimmed gain setting resistors, which enhance its gain accuracy and stability over temperature. It is available in 8-lead MSOP and SOIC packages and is specified to perform over the industrial temperature range of −40°C to +85°C, with operational capabilities up to +125°C.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Gain Drift | 2 ppm/°C | |||
| Gain Error (G = 10) | 0.02% | |||
| Input Offset Voltage | 50 μV | |||
| Input Offset Drift | 0.8 μV/°C | |||
| Input Bias Current | 0.6 nA | |||
| Common Mode Rejection Ratio (CMRR) | 100 dB | |||
| Bandwidth (G = 10) | 650 kHz | |||
| Slew Rate | 2 V/μs | |||
| Noise (G = 100, @ 1 kHz) | 8 nV/√Hz | |||
| Operating Temperature Range | −40°C | +85°C | ||
| Power Supply Range | ±2.3 V | ±18 V |
Key Features
- High gain accuracy due to internal, laser-trimmed gain setting resistors.
- Low gain drift of 2 ppm/°C.
- Low input offset voltage and drift.
- High common-mode rejection ratio (CMRR) of 100 dB.
- Wide power supply range: ±2.3 V to ±18 V.
- Operates on both single and dual supplies.
- Available in 8-lead MSOP and SOIC packages.
- Low noise: 8 nV/√Hz at 1 kHz (G = 100).
Applications
- Weigh scales.
- Industrial process controls.
- Bridge amplifiers.
- Precision data acquisition systems.
- Medical instrumentation.
- Strain gages.
- Transducer interfaces.
Q & A
- What is the gain drift of the AD8228BRZ-RL? The gain drift is 2 ppm/°C.
- What is the input offset voltage of the AD8228BRZ-RL? The maximum input offset voltage is 50 μV.
- What is the common-mode rejection ratio (CMRR) of the AD8228BRZ-RL? The CMRR is 100 dB.
- What is the bandwidth of the AD8228BRZ-RL at a gain of 10? The bandwidth is 650 kHz.
- What is the slew rate of the AD8228BRZ-RL? The slew rate is 2 V/μs.
- What are the available package types for the AD8228BRZ-RL? It is available in 8-lead MSOP and SOIC packages.
- What is the operating temperature range of the AD8228BRZ-RL? The specified performance temperature range is −40°C to +85°C, with operational capabilities up to +125°C.
- What are some typical applications of the AD8228BRZ-RL? Typical applications include weigh scales, industrial process controls, bridge amplifiers, precision data acquisition systems, medical instrumentation, strain gages, and transducer interfaces.
- What is the power supply range of the AD8228BRZ-RL? The power supply range is ±2.3 V to ±18 V.
- Does the AD8228BRZ-RL support both single and dual power supplies? Yes, it operates on both single and dual power supplies.
