Overview
The AD7863ARZ-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 | Unit |
|---|---|---|
| Resolution | 14-bit | |
| Sampling Rate | 175 kSPS | |
| Supply Voltage | 5 V | V |
| Power Consumption (Typical) | 70 mW | mW |
| Analog Input Range | 0 V to 2.5 V (AD7863-2) | V |
| Overvoltage Protection | ±17 V, ±7 V, or +7 V | V |
| Operating Temperature Range | –40°C to +85°C | °C |
| Package Type | 28-Lead SOIC_W, SSOP | |
| Conversion Time | 5.2 μs | μs |
Key Features
- Simultaneous sampling and conversion of two channels, preserving relative phase information.
- High-speed parallel interface for easy connection to microprocessors, microcontrollers, and digital signal processors.
- Automatic power-down mode, ideal for battery-powered or portable applications.
- Internal 2.5 V reference and two track/hold amplifiers.
- Overvoltage protection on analog inputs.
- Low power consumption with a maximum of 105 μW in power-saving mode.
Applications
The AD7863ARZ-2 is suitable for a variety of applications, including:
- Battery-powered devices and portable equipment due to its low power consumption and automatic power-down mode.
- High-speed data acquisition systems requiring simultaneous sampling of multiple channels.
- Industrial control systems, medical devices, and automotive systems where precise and fast analog-to-digital conversion is necessary.
Q & A
- What is the resolution of the AD7863ARZ-2?
The AD7863ARZ-2 has a resolution of 14 bits.
- What is the sampling rate of the AD7863ARZ-2?
The sampling rate is 175 kSPS.
- What is the supply voltage for the AD7863ARZ-2?
The supply voltage is 5 V.
- How much power does the AD7863ARZ-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 for the AD7863-2 model is 0 V to 2.5 V.
- Does the AD7863ARZ-2 have overvoltage protection?
- What is the operating temperature range of the AD7863ARZ-2?
The operating temperature range is –40°C to +85°C.
- In what package types is the AD7863ARZ-2 available?
The AD7863ARZ-2 is available in 28-Lead SOIC_W and SSOP packages.
- How long does the conversion process take for the AD7863ARZ-2?
The conversion time is 5.2 μs.
- Does the AD7863ARZ-2 support simultaneous sampling of multiple channels?
