Overview
The AD8475BRMZ-R7, produced by Analog Devices Inc., is a fully differential, attenuating amplifier designed for high-speed and precision applications. It features integrated precision gain resistors, providing precision attenuation (by 0.4 or 0.8), common-mode level shifting, and single-ended-to-differential conversion. The amplifier is particularly suited for driving high-resolution analog-to-digital converters (ADCs) and is known for its robust overvoltage protection and low noise characteristics.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 3 | - | 10 | V |
| Supply Current | - | 3.2 | - | mA |
| Input Offset Voltage | - | - | 500 | μV |
| Input Bias Current | - | - | 5 | pA |
| Bandwidth | - | 150 | - | MHz |
| Slew Rate | - | 50 | - | V/μs |
| Output Noise | - | 10 | - | nV/√Hz |
| Temperature Range | -40 | - | 85 | °C |
| Package | - | - | - | 10-Lead MSOP |
Key Features
- Precision Attenuation: Provides precision attenuation by 0.4 or 0.8 with integrated precision gain resistors.
- Common-Mode Level Shifting: Adjusts the output voltage common mode for precision level shifting to match the ADC’s input range.
- Single-Ended-to-Differential Conversion: Converts single-ended signals to differential signals, making it compatible with differential input ADCs.
- Overvoltage Protection: Robust overvoltage protection up to ±15 V on a single 5 V supply.
- Low Noise and Offset: Features 10 nV/√Hz output noise and 500 μV maximum output offset.
- High Speed and Slew Rate: Offers a 150 MHz bandwidth and a 50 V/μs slew rate.
- Low Power Consumption: Operates with a supply current of 3.2 mA.
- Wide Supply Range: Compatible with supply voltages from 3 V to 10 V.
Applications
- Data Acquisition Systems: Ideal for driving high-resolution ADCs in data acquisition systems.
- Instrumentation Amplifiers: Used as building blocks for differential instrumentation amplifiers.
- High-Speed Active Filters: Suitable for high-speed active filter applications due to its high bandwidth and slew rate.[
- Test and Measurement Equipment: Employed in test and measurement equipment requiring high precision and speed.[
- Industrial Control Systems: Compatible with industrial control systems that require robust and precise signal processing.[
Q & A
- What is the primary function of the AD8475BRMZ-R7?
The AD8475BRMZ-R7 is a fully differential, attenuating amplifier designed to provide precision attenuation, common-mode level shifting, and single-ended-to-differential conversion.
- What are the available gain options for the AD8475BRMZ-R7?
The AD8475BRMZ-R7 offers two standard pin-selectable gain options: 0.4 and 0.8.
- What is the maximum input voltage the AD8475BRMZ-R7 can handle?
The AD8475BRMZ-R7 can handle input voltages up to ±15 V while operating on a single 5 V supply.
- What is the typical supply current of the AD8475BRMZ-R7?
The typical supply current of the AD8475BRMZ-R7 is 3.2 mA.
- What is the bandwidth of the AD8475BRMZ-R7?
The bandwidth of the AD8475BRMZ-R7 is 150 MHz.
- What is the slew rate of the AD8475BRMZ-R7?
The slew rate of the AD8475BRMZ-R7 is 50 V/μs.
- What is the output noise of the AD8475BRMZ-R7?
The output noise of the AD8475BRMZ-R7 is 10 nV/√Hz.
- What is the maximum output offset voltage of the AD8475BRMZ-R7?
The maximum output offset voltage of the AD8475BRMZ-R7 is 500 μV.
- What are the typical applications of the AD8475BRMZ-R7?
The AD8475BRMZ-R7 is typically used in data acquisition systems, instrumentation amplifiers, high-speed active filters, test and measurement equipment, and industrial control systems.
- Is the AD8475BRMZ-R7 RoHS compliant?
