Overview
The AD7894BR-3REEL is a 14-bit, single-channel, successive approximation register (SAR) analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This component is designed for high-speed data acquisition and is packaged in an 8-lead SOIC (Small Outline Integrated Circuit) package. It is known for its high accuracy, low power consumption, and robust performance over a wide temperature range.
Key Specifications
| Specification | Value |
|---|---|
| Number of Bits | 14 |
| Sampling Rate | 200 kSPS (kilosamples per second) |
| Number of Inputs | 1 |
| Input Type | Single Ended |
| Data Interface | SPI (Serial Peripheral Interface) |
| Configuration | S/H-ADC (Sample and Hold - Analog to Digital Converter) |
| Ratio - S/H:ADC | 1:1 |
| Number of A/D Converters | 1 |
| Architecture | SAR (Successive Approximation Register) |
| Reference Type | External |
| Voltage - Supply, Analog | 5V |
| Voltage - Supply, Digital | 5V |
| Operating Temperature | -40°C to 85°C |
| Package | 8-SOIC (0.154", 3.90mm Width) |
Key Features
- High-speed conversion rate of 200 kSPS.
- Single-channel, 14-bit SAR ADC for precise data acquisition.
- External reference input for flexibility in system design.
- Low power consumption, making it suitable for battery-powered devices.
- Robust performance over a wide temperature range (-40°C to 85°C).
- SPI-compatible serial interface for easy communication with microcontrollers.
- Sample and Hold capability for accurate conversion of dynamic signals.
Applications
The AD7894BR-3REEL is versatile and can be used in a variety of applications, including:
- Data acquisition systems in industrial, medical, and automotive fields.
- Measurement and control systems requiring high accuracy and speed.
- Embedded systems where low power consumption and compact packaging are essential.
- Medical devices such as patient monitoring systems and diagnostic equipment.
- Aerospace and defense applications where reliability and performance over a wide temperature range are critical.
Q & A
- What is the resolution of the AD7894BR-3REEL ADC?
The AD7894BR-3REEL has a resolution of 14 bits. - What is the sampling rate of the AD7894BR-3REEL?
The sampling rate is 200 kSPS (kilosamples per second). - What type of data interface does the AD7894BR-3REEL use?
The AD7894BR-3REEL uses an SPI (Serial Peripheral Interface) for data communication. - What is the operating temperature range of the AD7894BR-3REEL?
The operating temperature range is -40°C to 85°C. - What is the package type of the AD7894BR-3REEL?
The package type is 8-SOIC (Small Outline Integrated Circuit). - Does the AD7894BR-3REEL support external reference input?
Yes, the AD7894BR-3REEL supports external reference input. - How many input channels does the AD7894BR-3REEL have?
The AD7894BR-3REEL has one single-ended input channel. - What is the architecture of the AD7894BR-3REEL ADC?
The architecture is Successive Approximation Register (SAR). - What are the typical supply voltages for the AD7894BR-3REEL?
The typical supply voltages are 5V for both analog and digital supplies. - Is the AD7894BR-3REEL RoHS compliant?
Yes, the AD7894BR-3REEL is RoHS compliant and lead-free.
