Overview
The AD7863ARSZ-3 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, combining 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 | ±2.5 V (AD7863-3) |
| Overvoltage Protection | Up to ±7 V |
| Conversion Time | 5.2 μs |
| Interface | High-speed parallel interface |
| Package | 28-Lead SSOP |
| Operating Temperature | -40°C to +85°C |
Key Features
- Simultaneous sampling and conversion of two channels, preserving relative phase information.
- Internal 2.5 V reference and 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.
- Overvoltage protection on analog inputs to prevent damage from excessive voltage.
- High 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 that require precise and simultaneous measurement of multiple analog signals.
Q & A
- What is the resolution of the AD7863ARSZ-3 ADC?
The AD7863ARSZ-3 has a resolution of 14 bits.
- What is the sampling rate of the AD7863ARSZ-3?
The sampling rate is 175 kSPS.
- What is the supply voltage for the AD7863ARSZ-3?
The supply voltage is 5 V.
- How much power does the AD7863ARSZ-3 typically consume?
The typical power consumption is 70 mW.
- What is the analog input range for the AD7863ARSZ-3 model?
The analog input range is ±2.5 V.
- Does the AD7863ARSZ-3 have overvoltage protection?
Yes, it has overvoltage protection up to ±7 V.
- How long does the conversion process take for the AD7863ARSZ-3?
The conversion time is 5.2 μs.
- What type of interface does the AD7863ARSZ-3 use?
The AD7863ARSZ-3 uses a high-speed parallel interface.
- In what package is the AD7863ARSZ-3 available?
The AD7863ARSZ-3 is available in a 28-Lead SSOP package.
- What is the operating temperature range for the AD7863ARSZ-3?
The operating temperature range is -40°C to +85°C.
