Overview
The AD7817BRUZ-REEL is a 10-bit, single-channel analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is part of the AD7817/AD7818 family, which also includes 4-channel variants. It features an on-chip temperature sensor, making it a versatile solution for various applications requiring both analog-to-digital conversion and temperature monitoring.
The device operates from a single 2.7 V to 5.5 V power supply, making it suitable for a wide range of power-constrained environments. It includes a successive approximation converter based on a capacitor digital-to-analog converter (DAC), an on-chip clock oscillator, and inherent track-and-hold functionality. The on-chip temperature sensor can be accessed via Channel 0, providing temperature measurements with an accuracy of ±2°C.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 10 bits |
| Number of Channels | Single-channel (AD7817), 4-channel (AD7818) |
| Power Supply | 2.7 V to 5.5 V |
| Temperature Sensor Accuracy | ±2°C (external reference), ±2.25°C (on-chip reference) at 25°C |
| Temperature Range | -40°C to 85°C (operating), -55°C to 125°C (storage) |
| Output Type | SPI |
| Package | 16-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
Key Features
- On-chip temperature sensor with ±2°C accuracy (external reference) and ±2.25°C accuracy (on-chip reference) at 25°C.
- Successive approximation converter based on a capacitor DAC.
- On-chip clock oscillator and inherent track-and-hold functionality.
- Automatic power-down feature for superior power performance at slower throughput rates (40 μW at 1 kSPS).
- On-chip 2.5 V reference.
- SPI output interface.
- Low power consumption, suitable for battery-powered devices.
Applications
- Battery-powered devices requiring low power consumption.
- Industrial control systems needing temperature monitoring and analog-to-digital conversion.
- Medical devices that require precise temperature measurements and analog signal processing.
- Aerospace and automotive systems where compact, reliable ADCs with temperature sensing are essential.
- Environmental monitoring systems that need to measure both analog signals and temperature.
Q & A
- What is the resolution of the AD7817BRUZ-REEL ADC?
The AD7817BRUZ-REEL has a 10-bit resolution.
- What is the operating voltage range of the AD7817BRUZ-REEL?
The device operates from a single 2.7 V to 5.5 V power supply.
- How accurate is the on-chip temperature sensor?
The on-chip temperature sensor has an accuracy of ±2°C (external reference) and ±2.25°C (on-chip reference) at 25°C.
- What is the output interface of the AD7817BRUZ-REEL?
The output interface is SPI.
- What is the package type of the AD7817BRUZ-REEL?
The device is packaged in a 16-SOIC (0.154", 3.90mm Width).
- What are the typical applications of the AD7817BRUZ-REEL?
Typical applications include battery-powered devices, industrial control systems, medical devices, aerospace, and automotive systems.
- Does the AD7817BRUZ-REEL have an automatic power-down feature?
Yes, it has an automatic power-down feature for superior power performance at slower throughput rates.
- What is the operating temperature range of the AD7817BRUZ-REEL?
The operating temperature range is -40°C to 85°C, and the storage temperature range is -55°C to 125°C.
- How does the on-chip clock oscillator benefit the device?
The on-chip clock oscillator eliminates the need for an external clock source, simplifying the system design.
- What is the power consumption of the AD7817BRUZ-REEL at 1 kSPS throughput rate?
The power consumption is 40 μW at 1 kSPS throughput rate.
