Overview
The AD7858AR-REEL, manufactured by Analog Devices Inc., is a high-performance, 12-bit analog-to-digital converter (ADC) designed for a wide range of applications. This ADC operates from a single 3 V or 5 V power supply and is optimized for speed, making it suitable for high-throughput data acquisition systems. The AD7858AR-REEL features advanced calibration options, including system and self-calibration, to ensure accurate operation over varying temperatures and conditions.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Number of Bits | 12 | |
| Number of Channels | 8 single-ended or 4 pseudo-differential | |
| Sampling Rate | 200 kSPS | |
| Signal to Noise Ratio (SNR) | 71 dB | |
| Differential Nonlinearity (DNL) | ±1 LSB | |
| Supply Voltage | 3 V to 5.5 V | |
| Operating Temperature | -40°C to +85°C | |
| Package | 24-SOIC (0.295", 7.50mm Width) | |
| Interface Type | SPI, QSPI, 8051 compatible |
Key Features
- High-speed operation with a throughput rate of 200 kSPS
- Automatic calibration on power-up and system/self-calibration options
- Flexible power management including automatic power-down after conversion
- Operates with reference voltages from 1.2 V to VDD
- Analog input range from 0 V to VDD
- Versatile serial I/O port (SPI/QSPI/8051/µP)
- Low power consumption: 12 mW (VDD = 3 V) for AD7858 and 4.5 mW (VDD = 3 V) for AD7858L
Applications
- Battery-powered systems (personal digital assistants, medical instruments, mobile communications)
- Pen computers
- Instrumentation and control systems
- High-speed modems
- Communication systems
- Industrial control
- Measuring instruments
- Consumer electronics
- Acquisition systems
- Medical instruments
- Audio processing
- Automotive electronics
Q & A
- What is the resolution of the AD7858AR-REEL ADC?
The AD7858AR-REEL has a resolution of 12 bits.
- What is the maximum sampling rate of the AD7858AR-REEL?
The maximum sampling rate is 200 kSPS.
- What types of input channels does the AD7858AR-REEL support?
The ADC supports eight single-ended or four pseudo-differential input channels.
- What is the operating temperature range of the AD7858AR-REEL?
The operating temperature range is from -40°C to +85°C.
- What are the power supply options for the AD7858AR-REEL?
The ADC operates from a single 3 V to 5.5 V power supply.
- Does the AD7858AR-REEL support any calibration options?
Yes, it supports system and self-calibration options.
- What types of serial interfaces does the AD7858AR-REEL support?
The ADC supports SPI, QSPI, and 8051 compatible serial interfaces.
- What is the typical power consumption of the AD7858AR-REEL?
The typical power consumption is 12 mW at VDD = 3 V.
- In what package is the AD7858AR-REEL available?
The ADC is available in a 24-SOIC package.
- What are some common applications of the AD7858AR-REEL?
Common applications include battery-powered systems, instrumentation, communication systems, and medical instruments.
