Overview
The AD7858BRZ is a 12-bit, 4- or 8-channel, successive approximation register (SAR) analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This device is designed for high-performance data acquisition applications, offering a balance of speed, accuracy, and low power consumption. The AD7858BRZ is packaged in a 24-lead SOIC package, making it suitable for a variety of industrial and medical applications where precision and reliability are crucial.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Number of Channels | 4 or 8 |
| Conversion Type | Successive Approximation Register (SAR) |
| Package Type | 24-lead SOIC |
| Operating Temperature Range | -40°C to +85°C |
| Supply Voltage | 4.75V to 5.25V |
| Power Consumption | Typically 15mW at 2.5V supply |
Key Features
- High-speed conversion rate: Up to 200kSPS
- Low power consumption: Suitable for battery-powered devices
- High accuracy: ±0.5 LSB INL and ±1 LSB DNL
- Flexible input configuration: 4 or 8 single-ended inputs or 4 differential inputs
- On-chip reference and temperature sensor
- Serial interface: SPI-compatible serial interface for easy communication
Applications
- Industrial automation and control systems
- Medical devices: Patient monitoring, diagnostic equipment
- Data acquisition systems
- Automotive systems: Sensor interfaces, control units
- Consumer electronics: Audio and video equipment
Q & A
- What is the resolution of the AD7858BRZ ADC?
The AD7858BRZ has a resolution of 12 bits. - How many input channels does the AD7858BRZ support?
The AD7858BRZ supports either 4 or 8 input channels. - What is the conversion type of the AD7858BRZ?
The AD7858BRZ uses a successive approximation register (SAR) conversion type. - What is the package type of the AD7858BRZ?
The AD7858BRZ is packaged in a 24-lead SOIC package. - What is the operating temperature range of the AD7858BRZ?
The operating temperature range is -40°C to +85°C. - What is the typical power consumption of the AD7858BRZ?
The typical power consumption is 15mW at a 2.5V supply. - Does the AD7858BRZ have an on-chip reference?
Yes, the AD7858BRZ includes an on-chip reference and temperature sensor. - What type of serial interface does the AD7858BRZ use?
The AD7858BRZ uses a SPI-compatible serial interface. - What are some common applications of the AD7858BRZ?
Common applications include industrial automation, medical devices, data acquisition systems, automotive systems, and consumer electronics. - What is the maximum conversion rate of the AD7858BRZ?
The maximum conversion rate is up to 200kSPS.
