Overview
The AD7863ARZ-10REEL7, produced by Analog Devices Inc., is a high-speed, low-power, dual 14-bit analog-to-digital converter (ADC). This component operates from a single 5 V supply and is designed for simultaneous sampling and conversion of two channels. Each ADC has a two-channel input multiplexer, allowing for the preservation of the relative phase information of the signals on both analog inputs. 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 |
| Analog Input Range | ±10 V (AD7863-10), ±2.5 V (AD7863-3), 0 V to 2.5 V (AD7863-2) |
| Overvoltage Protection | ±17 V, ±7 V, or +7 V respectively |
| Supply Voltage | 5 V |
| Power Consumption | 70 mW typical |
| Conversion Time | 5.2 μs |
| Interface | High speed parallel interface with CS and RD signals |
| Package | 28-Lead SOIC (Wide) |
| Operating Temperature | –40°C to +85°C |
Key Features
- Simultaneous sampling and conversion of two channels, preserving relative phase information.
- Automatic power-down mode, ideal for battery-powered or portable applications.
- High speed parallel interface for easy connection to microprocessors, microcontrollers, and digital signal processors.
- Internal 2.5 V reference and high speed clock oscillator circuit.
- Overvoltage protection on analog inputs to prevent damage.
- Low power consumption and high dynamic performance parameters including harmonic distortion and signal-to-noise ratio.
Applications
- Battery-powered and 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 precise and fast analog-to-digital conversion is necessary.
- Medical devices that require high accuracy and low noise in signal conversion.
- Aerospace and defense applications where high reliability and performance are critical.
Q & A
- What is the resolution of the AD7863ARZ-10REEL7?
The AD7863ARZ-10REEL7 has a resolution of 14 bits.
- What is the sampling rate of the AD7863ARZ-10REEL7?
The sampling rate is 175 kSPS.
- What are the available analog input ranges for the AD7863?
The available analog input ranges are ±10 V, ±2.5 V, and 0 V to 2.5 V.
- How does the AD7863 protect against overvoltage on the analog inputs?
The AD7863 has overvoltage protection that allows input voltages to go up to ±17 V, ±7 V, or +7 V without causing damage.
- What is the power consumption of the AD7863ARZ-10REEL7?
The typical power consumption is 70 mW.
- How long does it take for the AD7863 to complete a conversion?
The conversion time is 5.2 μs.
- What type of interface does the AD7863 use for data transfer?
The AD7863 uses a high speed parallel interface with CS and RD signals.
- In what package is the AD7863ARZ-10REEL7 available?
The AD7863ARZ-10REEL7 is available in a 28-Lead SOIC (Wide) package.
- What is the operating temperature range of the AD7863?
The operating temperature range is –40°C to +85°C.
- What are some typical applications of the AD7863?
Typical applications include battery-powered devices, data acquisition systems, industrial control systems, medical devices, and aerospace and defense applications.
