Overview
The AD8274ARZ from Analog Devices Inc. is a high-performance difference amplifier designed to deliver exceptional AC and DC performance. Built on Analog Devices' proprietary iPolar® process and utilizing laser-trimmed resistors, this amplifier achieves low distortion, high gain accuracy, and excellent common-mode rejection ratio (CMRR). It is well-suited for applications requiring precise voltage measurement and signal conditioning.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 1 |
| Gain (Minimum/Maximum) | 0.5 / 2 V/V |
| Common Mode Input Range | -40.5 V to 40.5 V |
| Supply Voltage Range | ±2.5 V to ±18 V (single supply up to 36 V) |
| Supply Current (Maximum) | 2.6 mA |
| Operating Temperature Range | -40°C to +85°C |
| Bandwidth (Low Gain, Typical) | 20 MHz |
| Settling Time (0.01%) | 800 ns |
| Slew Rate (Minimum) | 20 V/μs |
| CMRR (Minimum) | 83 dB |
| Offset Voltage (Maximum) | 700 μV |
| Package | 8-lead SOIC and MSOP |
| RoHS Compliance | Compliant |
Key Features
- Very low distortion: 0.00025% THD + N at 20 kHz and 0.0015% THD + N at 100 kHz.
- Excellent gain accuracy with a maximum gain error of 0.03% and gain drift of 2 ppm/°C.
- High CMRR of 83 dB and low offset voltage of 700 μV.
- High slew rate of 20 V/μs and fast settling time of 800 ns to 0.01%.
- Ability to drive 600 Ω loads and measure voltages beyond the supply voltages.
- Configurable gains ranging from -2 to +3 for single-ended applications.
- Low supply current of 2.6 mA maximum.
- Industrial temperature range operation from -40°C to +85°C.
Applications
- ADC driver: Excellent for driving analog-to-digital converters due to its high accuracy and low distortion.
- High-performance audio: Suitable for audio applications requiring low distortion and high gain stability.
- Instrumentation amplifier building blocks: Can be used to build various amplifier configurations.
- Level translators: Useful for translating high voltage signals to lower voltage levels.
- Automatic test equipment: Ideal for precision measurement and signal conditioning in test equipment.
- Sine/cosine encoders: Used in applications requiring precise signal processing.
Q & A
- What is the primary function of the AD8274ARZ?
The AD8274ARZ is a precision difference amplifier designed to deliver excellent AC and DC performance.
- What are the typical applications of the AD8274ARZ?
It is used in ADC drivers, high-performance audio, instrumentation amplifier building blocks, level translators, automatic test equipment, and sine/cosine encoders.
- What is the gain range of the AD8274ARZ?
The gain range is from 0.5 to 2 V/V, and it can be configured for gains ranging from -2 to +3 for single-ended applications.
- What is the maximum supply current of the AD8274ARZ?
The maximum supply current is 2.6 mA.
- What is the operating temperature range of the AD8274ARZ?
The operating temperature range is from -40°C to +85°C.
- What is the CMRR of the AD8274ARZ?
The minimum CMRR is 83 dB.
- Can the AD8274ARZ measure voltages beyond the supply voltages?
Yes, the AD8274ARZ can measure voltages beyond the supply voltages due to its resistor divider architecture.
- What is the slew rate of the AD8274ARZ?
The minimum slew rate is 20 V/μs.
- Is the AD8274ARZ RoHS compliant?
Yes, the AD8274ARZ is RoHS compliant.
- What are the package options for the AD8274ARZ?
The AD8274ARZ is available in 8-lead SOIC and MSOP packages.
