Overview
The AD8278BRMZ-RL, manufactured by Analog Devices Inc., is a general-purpose difference amplifier designed for precision signal conditioning in power-critical applications. This amplifier is part of the AD8278 and AD8279 series, which are known for their high performance and low power consumption. The AD8278BRMZ-RL is particularly suited for applications requiring high common-mode rejection ratio (CMRR) and high bandwidth, making it ideal for voltage and current measurement, instrumentation, and test and measurement equipment.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage Range | Single supply: 2 V to 36 V, Dual supplies: ±2 V to ±18 V |
| Supply Current | 200 μA (typical at TA = −40°C to +85°C) |
| Input Offset Voltage | 50 μV (typical) |
| Slew Rate | 1.4 V/μs |
| Gain Bandwidth Product | 1 MHz |
| Common-Mode Rejection Ratio (CMRR) | 80 dB |
| Operating Temperature Range | −40°C to +125°C |
| Package Type | 8-lead MSOP |
| Noise (Output Voltage Noise) | 1.4 μV p-p (f = 0.1 Hz to 10 Hz), 47 nV/√Hz (f = 1 kHz) |
Key Features
- High common-mode rejection ratio (CMRR) of 80 dB
- Low offset voltage drift: ±1 μV/°C maximum
- Low gain drift: 1 ppm/°C maximum
- Enhanced slew rate of 1.4 V/μs
- Wide power supply range: single supply from 2 V to 36 V and dual supplies from ±2 V to ±18 V
- On-chip resistors laser trimmed for excellent gain accuracy and high CMRR
- Low power consumption with a supply current of 200 μA (typical)
Applications
- Voltage measurement and monitoring
- Current measurement and monitoring
- Instrumentation amplifier building block
- Portable, battery-powered equipment
- Test and measurement equipment
Q & A
- What is the primary function of the AD8278BRMZ-RL?
The AD8278BRMZ-RL is a general-purpose difference amplifier designed for precision signal conditioning. - What is the common-mode rejection ratio (CMRR) of the AD8278BRMZ-RL?
The CMRR is 80 dB. - What is the slew rate of the AD8278BRMZ-RL?
The slew rate is 1.4 V/μs. - What is the operating temperature range of the AD8278BRMZ-RL?
The operating temperature range is −40°C to +125°C. - What are the typical supply current and voltage ranges for the AD8278BRMZ-RL?
The typical supply current is 200 μA, and the supply voltage range is from 2 V to 36 V for single supply and ±2 V to ±18 V for dual supplies. - What package type is the AD8278BRMZ-RL available in?
The AD8278BRMZ-RL is available in an 8-lead MSOP package. - What are some common applications of the AD8278BRMZ-RL?
Common applications include voltage and current measurement, instrumentation, and test and measurement equipment. - How does the AD8278BRMZ-RL handle noise?
The AD8278BRMZ-RL has an output voltage noise of 1.4 μV p-p (f = 0.1 Hz to 10 Hz) and 47 nV/√Hz (f = 1 kHz). - What is the gain bandwidth product of the AD8278BRMZ-RL?
The gain bandwidth product is 1 MHz. - Is the AD8278BRMZ-RL suitable for battery-powered devices?
Yes, it is suitable for portable, battery-powered equipment due to its low power consumption.
