Overview
The AD8277BRZ, produced by Analog Devices Inc., is a general-purpose, unity-gain difference amplifier designed for precision signal conditioning in power-critical applications. This amplifier is optimized for high performance and low power consumption, making it ideal for battery-operated and portable systems. The AD8277BRZ offers exceptional common-mode rejection ratio (CMRR) and high bandwidth, allowing it to amplify signals well beyond the supply rails. It is available in a SOIC-14 package and is RoHS compliant.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (Single Supply) | 2.0 | - | 36 | V |
| Supply Voltage (Dual Supplies) | ±2 | - | ±18 | V |
| Quiescent Supply Current per Channel | - | 200 | - | μA |
| Input Offset Voltage | - | 100 | 500 | μV |
| Average Temperature Coefficient of Input Offset Voltage | - | 0.5 | 2 | μV/°C |
| Common-Mode Rejection Ratio (CMRR) | 80 | 86 | - | dB |
| Slew Rate | - | 1.1 | - | V/μs |
| Input Voltage Range | -2(VS + 0.1) | - | +2(VS - 1.5) | V |
| Operating Temperature Range | -40 | - | +85 | °C |
Key Features
- High common-mode rejection ratio (CMRR) of up to 86 dB.
- Low gain drift of 1 ppm/°C maximum.
- Wide power supply range: single supply from 2.0 V to 36 V, and dual supplies from ±2 V to ±18 V.
- Low quiescent supply current of 200 μA per channel, suitable for battery-operated systems.
- High slew rate of 1.1 V/μs.
- Internal resistors are laser trimmed for high accuracy and stability.
- Overvoltage protection at the inputs due to internal resistors and ESD circuitry.
- Unity-gain stable and can be configured for single-ended operations with gains of -1, +1, or +2.
Applications
- Voltage measurement and monitoring.
- Current measurement and monitoring.
- Differential output instrumentation amplifier.
- Portable, battery-powered equipment.
- Test and measurement equipment.
Q & A
- What is the primary function of the AD8277BRZ?
The AD8277BRZ is a general-purpose, unity-gain difference amplifier designed for precision signal conditioning.
- What is the supply voltage range for the AD8277BRZ?
The AD8277BRZ can operate on a single supply from 2.0 V to 36 V or dual supplies from ±2 V to ±18 V.
- What is the common-mode rejection ratio (CMRR) of the AD8277BRZ?
The CMRR of the AD8277BRZ is up to 86 dB.
- What is the slew rate of the AD8277BRZ?
The slew rate of the AD8277BRZ is 1.1 V/μs.
- What is the quiescent supply current per channel for the AD8277BRZ?
The quiescent supply current per channel is 200 μA.
- What are the typical applications of the AD8277BRZ?
Typical applications include voltage and current measurement, differential output instrumentation, portable equipment, and test and measurement.
- Is the AD8277BRZ RoHS compliant?
- What is the operating temperature range of the AD8277BRZ?
The operating temperature range is from -40°C to +85°C.
- Can the AD8277BRZ be used in single-ended configurations?
- What type of package is the AD8277BRZ available in?
The AD8277BRZ is available in a SOIC-14 package.
