Overview
The AD8278ARMZ-R7, produced by Analog Devices Inc., is a general-purpose difference amplifier designed for precision signal conditioning in power-critical applications. This component is ideal for applications requiring high performance and low power consumption. The AD8278ARMZ-R7 is part of the AD8278 and AD8279 family, which are known for their exceptional common-mode rejection ratio (CMRR) and high bandwidth, making them suitable for amplifying input signals that are well beyond the supply rails.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) |
| Number of Pins | 8 |
| Slew Rate | 1.4 V/μs |
| Input Offset Voltage (Vos) | 50 μV to 100 μV |
| Common Mode Rejection Ratio (CMRR) | 80 dB |
| Supply Voltage | Single: 2 V to 36 V, Dual: ±2 V to ±18 V |
| Operating Supply Current | 200 μA to 250 μA (over temperature) |
| Output Current per Channel | ±15 mA |
| Bandwidth | dc to 20 kHz (G = ½, B Grade) |
| Operating Temperature Range | −40°C to +125°C |
Key Features
- High CMRR: The AD8278ARMZ-R7 offers an exceptional common-mode rejection ratio of 80 dB, ensuring effective noise and interference rejection.
- Low Power Consumption: With a supply current of 200 μA to 250 μA, this amplifier is suitable for power-critical applications.
- Wide Power Supply Range: It can operate with single supplies from 2 V to 36 V and dual supplies from ±2 V to ±18 V.
- High Bandwidth: The amplifier has a bandwidth from dc to 20 kHz, making it versatile for various signal conditioning tasks.
- Low Offset Voltage Drift: The component features a low offset voltage drift of ±1 μV/°C, ensuring high precision over temperature variations.
- Enhanced Slew Rate: With a slew rate of 1.4 V/μs, the AD8278ARMZ-R7 provides fast response times.
Applications
- Voltage Measurement and Monitoring: Ideal for precision voltage measurement and monitoring applications.
- Current Measurement and Monitoring: Suitable for current measurement and monitoring due to its high accuracy and low noise.
- Instrumentation Amplifier Building Block: Can be used as a building block for low-power, low-cost instrumentation amplifiers.
- Portable, Battery-Powered Equipment: Its low power consumption makes it suitable for battery-powered devices.
- Test and Measurement: Used in various test and measurement equipment due to its high performance and precision.
Q & A
- What is the common-mode rejection ratio (CMRR) of the AD8278ARMZ-R7?
The CMRR of the AD8278ARMZ-R7 is 80 dB, which is exceptionally high and ensures effective noise and interference rejection.
- What is the operating supply voltage range for the AD8278ARMZ-R7?
The AD8278ARMZ-R7 can operate with single supplies from 2 V to 36 V and dual supplies from ±2 V to ±18 V.
- What is the slew rate of the AD8278ARMZ-R7?
The slew rate of the AD8278ARMZ-R7 is 1.4 V/μs.
- What is the input offset voltage (Vos) of the AD8278ARMZ-R7?
The input offset voltage (Vos) of the AD8278ARMZ-R7 is typically between 50 μV and 100 μV.
- What are the typical applications of the AD8278ARMZ-R7?
The AD8278ARMZ-R7 is typically used in voltage and current measurement, instrumentation amplifier building blocks, portable battery-powered equipment, and test and measurement applications.
- What is the operating temperature range of the AD8278ARMZ-R7?
The operating temperature range of the AD8278ARMZ-R7 is from −40°C to +125°C.
- What is the output current per channel of the AD8278ARMZ-R7?
The output current per channel of the AD8278ARMZ-R7 is ±15 mA.
- What is the bandwidth of the AD8278ARMZ-R7?
The bandwidth of the AD8278ARMZ-R7 is from dc to 20 kHz (G = ½, B Grade).
- What is the supply current of the AD8278ARMZ-R7?
The supply current of the AD8278ARMZ-R7 is typically 200 μA to 250 μA over temperature.
- What package types are available for the AD8278ARMZ-R7?
The AD8278ARMZ-R7 is available in 8-TSSOP and 8-MSOP packages.
