Overview
The AD8228BRMZ-R7 is a high-performance instrumentation amplifier produced by Analog Devices Inc. This component is renowned for its low gain drift, high gain accuracy, and excellent DC performance. The AD8228 operates on both single and dual power supplies, with a wide range of ±2.3 V to ±18 V, making it suitable for applications requiring high common-mode input voltages. It is available in an 8-lead MSOP package and is specified over the entire industrial temperature range of −40°C to +85°C, with operational capabilities up to +125°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | Instrumentation | - |
| Number of Circuits | 1 | - |
| Slew Rate | 2.5 | V/μs |
| -3 dB Bandwidth (G = 10) | 650 | kHz |
| Input Bias Current | 400 | pA |
| Input Offset Voltage | 50 | μV |
| Supply Current | 850 | μA |
| Output Current per Channel | 18 | mA |
| Supply Voltage Range | 4.6 V ~ 36 V (Single), 2.3 V ~ 18 V (Dual) | V |
| Operating Temperature | -40°C ~ 85°C | - |
| Mounting Type | Surface Mount | - |
| Package Type | 8-MSOP | - |
Key Features
- Low gain drift of 2 ppm/°C and low gain error of 0.02%.
- High common-mode rejection ratio (CMRR) of 100 dB.
- Low input offset voltage of 50 μV and low input offset drift of 0.8 μV/°C.
- Low noise: 8 nV/√Hz at 1 kHz (G = 100) and 0.3 μV p-p from 0.1 Hz to 10 Hz (G = 100).
- Pin strappable gains of 10 and 100.
- Wide power supply range: ±2.3 V to ±18 V.
Applications
- Weigh scales
- Industrial process controls
- Bridge amplifiers
- Precision data acquisition systems
- Medical instrumentation
- Strain gages
- Transducer interfaces
Q & A
- What is the primary function of the AD8228BRMZ-R7?
The AD8228BRMZ-R7 is a precision instrumentation amplifier designed for high accuracy and low drift in gain and offset voltage.
- What are the available gain settings for the AD8228BRMZ-R7?
The gain settings are pin strappable and can be set to 10 or 100.
- What is the operating temperature range of the AD8228BRMZ-R7?
The specified performance temperature range is −40°C to +85°C, with operational capabilities up to +125°C.
- What is the common-mode rejection ratio (CMRR) of the AD8228BRMZ-R7?
The CMRR is 100 dB.
- What are the typical applications of the AD8228BRMZ-R7?
Typical applications include weigh scales, industrial process controls, bridge amplifiers, precision data acquisition systems, medical instrumentation, strain gages, and transducer interfaces.
- What is the input offset voltage of the AD8228BRMZ-R7?
The maximum input offset voltage is 50 μV.
- What is the slew rate of the AD8228BRMZ-R7?
The slew rate is 2.5 V/μs.
- What is the bandwidth of the AD8228BRMZ-R7 at a gain of 10?
The -3 dB bandwidth at a gain of 10 is 650 kHz.
- What is the package type of the AD8228BRMZ-R7?
The package type is 8-MSOP.
- What is the supply current of the AD8228BRMZ-R7?
The supply current is typically 850 μA.
