Overview
The AD7863ARSZ-2 is a high-speed, low-power, dual 14-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This component operates from a single 5 V supply and is designed for simultaneous sampling and conversion of two channels. It features two successive approximation ADCs, two track/hold amplifiers, an internal 2.5 V reference, and a high-speed parallel interface. The AD7863 is fabricated using Analog Devices' linear compatible CMOS (LC2MOS) process, which combines precision bipolar circuits with low power CMOS logic.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 14-bit |
| Sampling Rate | 175 kSPS |
| Supply Voltage | 5 V |
| Power Consumption | 70 mW (typical) |
| Analog Input Range | 0 V to 2.5 V (AD7863-2) |
| Overvoltage Protection | Up to +7 V |
| Conversion Time | 5.2 μs |
| Package Type | 28-Lead SSOP |
| Operating Temperature Range | -40°C to +85°C |
Key Features
- Simultaneous sampling and conversion of two channels, preserving relative phase information of the signals.
- High-speed parallel interface for easy connection to microprocessors, microcontrollers, and digital signal processors.
- Automatic power-down mode for reduced power consumption, ideal for battery-powered or portable applications.
- Internal 2.5 V reference and track/hold amplifiers.
- Overvoltage protection on analog inputs to prevent damage.
- Dynamic performance specifications including harmonic distortion and signal-to-noise ratio.
Applications
- Battery-powered or portable devices due to its low power consumption and automatic power-down mode.
- Data acquisition systems requiring simultaneous sampling of multiple channels.
- Industrial control systems where high-speed and accurate analog-to-digital conversion is necessary.
- Medical devices and instrumentation requiring precise and simultaneous signal conversion.
Q & A
- What is the resolution of the AD7863ARSZ-2?
The AD7863ARSZ-2 has a resolution of 14 bits.
- What is the sampling rate of the AD7863ARSZ-2?
The sampling rate is 175 kSPS.
- What is the supply voltage for the AD7863ARSZ-2?
The supply voltage is 5 V.
- How much power does the AD7863ARSZ-2 typically consume?
The typical power consumption is 70 mW.
- What is the analog input range for the AD7863-2 model?
The analog input range is 0 V to 2.5 V.
- Does the AD7863ARSZ-2 have overvoltage protection?
Yes, it has overvoltage protection up to +7 V.
- How long does the conversion process take for the AD7863ARSZ-2?
The conversion time is 5.2 μs.
- In what package type is the AD7863ARSZ-2 available?
The AD7863ARSZ-2 is available in a 28-Lead SSOP package.
- What is the operating temperature range for the AD7863ARSZ-2?
The operating temperature range is -40°C to +85°C.
- Is the AD7863ARSZ-2 suitable for battery-powered devices?
Yes, it is suitable due to its low power consumption and automatic power-down mode.
