Overview
The AD7858BR-REEL is a high-performance 12-bit Analog-to-Digital Converter (ADC) manufactured by Analog Devices Inc. This device is part of the AD7858 series and is designed for applications requiring high accuracy and speed. The AD7858BR-REEL features a successive approximation register (SAR) architecture, supporting up to 200 kSPS sampling rate. It is available in a compact 24-pin SOIC package, making it suitable for space-constrained designs. The ADC can operate with either external or internal reference voltages and has a flexible supply voltage range of 3V to 5.5V for both analog and digital signals.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 12 |
| Number of Inputs | 4 or 8 |
| Input Type | Pseudo-Differential, Single Ended |
| Architecture | SAR (Successive Approximation Register) |
| Sampling Rate | 200 kSPS |
| Reference Type | External, Internal |
| Data Interface | SPI |
| Supply Voltage - Analog | 3V ~ 5.5V |
| Supply Voltage - Digital | 3V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C |
| Package / Case | 24-SOIC (0.295", 7.50mm Width) |
| Mounting Type | Surface Mount |
Key Features
- 12-bit resolution
- 4 or 8 input channels
- SAR architecture with a maximum sampling rate of 200 kSPS
- Pseudo-differential and single-ended input capabilities
- External or internal reference options
- Flexible supply voltage range: 3V to 5.5V (analog and digital)
- Surface-mount technology (SMT) compatible
- Automatic power-down after conversion for low-power applications
- System and self-calibration options
- Versatile serial I/O port (SPI/QSPI/8051/µP)
Applications
- Data acquisition systems
- Industrial control systems
- Medical devices
- Automotive electronics
- Aerospace and defense applications
- Communication systems
- Instrumentation and test equipment
- Cell phones and wireless local loop systems
- High-speed data acquisition for PCs
- Industrial process control
Q & A
- What is the resolution of the AD7858BR-REEL ADC?
The AD7858BR-REEL has a 12-bit resolution.
- How many input channels does the AD7858BR-REEL support?
The AD7858BR-REEL supports 4 or 8 input channels.
- What is the maximum sampling rate of the AD7858BR-REEL?
The maximum sampling rate is 200 kSPS.
- What types of input signals can the AD7858BR-REEL handle?
The AD7858BR-REEL can handle pseudo-differential and single-ended input signals.
- What are the supply voltage ranges for the AD7858BR-REEL?
The supply voltage ranges are 3V to 5.5V for both analog and digital signals.
- What is the operating temperature range of the AD7858BR-REEL?
The operating temperature range is -40°C to 85°C.
- What package type is the AD7858BR-REEL available in?
The AD7858BR-REEL is available in a 24-SOIC package.
- Does the AD7858BR-REEL support self-calibration?
Yes, the AD7858BR-REEL supports system and self-calibration options.
- What data interface does the AD7858BR-REEL use?
The AD7858BR-REEL uses an SPI data interface.
- Is the AD7858BR-REEL RoHS compliant?
No, the AD7858BR-REEL is not RoHS compliant.
- What is the current status of the AD7858BR-REEL?
The AD7858BR-REEL is currently marked as obsolete.
