Overview
The AD8475ARMZ-RL, produced by Analog Devices Inc., is a fully differential, attenuating amplifier designed to provide precision attenuation, common-mode level shifting, and single-ended-to-differential conversion. This amplifier is integrated with precision gain resistors and offers robust overvoltage protection, making it suitable for a wide range of applications, particularly in driving high-performance analog-to-digital converters (ADCs). It operates on a single supply from 3 V to 10 V or dual supplies from ±1.5 V to ±5 V, ensuring flexibility in various system designs.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage | Single: 3 V to 10 V, Dual: ±1.5 V to ±5 V |
| Input Voltage Range | Up to ±10 V |
| Overvoltage Protection | Up to ±15 V (VS = +5 V) |
| Gain Options | 0.4 and 0.8 (pin-selectable) |
| Output Noise | 10 nV/√Hz |
| Gain Drift | 3 ppm/°C |
| Output Offset | 500 μV maximum |
| Slew Rate | 50 V/μs |
| Supply Current | 3.2 mA |
| Operating Temperature Range | −40°C to +85°C |
| Package Options | 16-Lead LFCSP, 10-Lead MSOP |
Key Features
- Precision attenuation by 0.4 or 0.8
- Common-mode level shifting
- Single-ended-to-differential conversion
- Robust overvoltage protection up to ±15 V
- Low power consumption: 3.2 mA supply current
- High performance: suited for driving 18-bit converters up to 4 MSPS
- Precision gain resistors: wafer-laser-trimmed for high accuracy
- High common-mode rejection ratio (CMRR): minimum of 86 dB
Applications
- ADC drivers for high-performance ADCs
- Differential instrumentation amplifier building blocks
- Single-ended-to-differential converters
- Industrial signal processing where precision and robustness are required
Q & A
- What is the primary function of the AD8475ARMZ-RL?
The AD8475ARMZ-RL is a fully differential, attenuating amplifier that provides precision attenuation, common-mode level shifting, and single-ended-to-differential conversion. - What are the supply voltage options for the AD8475ARMZ-RL?
The AD8475ARMZ-RL can operate on a single supply from 3 V to 10 V or dual supplies from ±1.5 V to ±5 V. - What is the input voltage range of the AD8475ARMZ-RL?
The input voltage range is up to ±10 V. - What level of overvoltage protection does the AD8475ARMZ-RL offer?
The AD8475ARMZ-RL offers overvoltage protection up to ±15 V when operating on a single 5 V supply. - What are the gain options available for the AD8475ARMZ-RL?
The gain options are 0.4 and 0.8, which are pin-selectable. - What is the output noise of the AD8475ARMZ-RL?
The output noise is 10 nV/√Hz. - What is the slew rate of the AD8475ARMZ-RL?
The slew rate is 50 V/μs. - What is the typical supply current of the AD8475ARMZ-RL?
The typical supply current is 3.2 mA. - What are the package options for the AD8475ARMZ-RL?
The package options are 16-Lead LFCSP and 10-Lead MSOP. - What is the operating temperature range of the AD8475ARMZ-RL?
The operating temperature range is −40°C to +85°C.
