Overview
The AD7817BRZ-REEL, produced by Analog Devices Inc., is a 10-bit, 4-channel analog-to-digital converter (ADC) with an integrated temperature sensor. This device operates from a single 2.7 V to 5.5 V power supply, making it versatile for various applications. The AD7817 features a successive approximation converter based on a capacitor digital-to-analog converter (DAC), an on-chip clock oscillator, and inherent track-and-hold functionality. Additionally, it includes an on-chip temperature sensor and a 2.5 V reference voltage source, which can be either internal or external.
Key Specifications
| Parameter | Value | Notes |
|---|---|---|
| Resolution | 10 bits | |
| Number of Channels | 4 | |
| Conversion Rate | 100 kSPS | |
| Supply Voltage | 2.7 V to 5.5 V | |
| Temperature Sensor Accuracy | ±2°C (±2.25°C with on-chip reference) | At 25°C, ±3°C over full temperature range |
| Operating Temperature | -40°C to 85°C | |
| Package Type | 16-SOIC (0.154", 3.90mm Width) | |
| Output Type | SPI |
Key Features
- On-chip temperature sensor with ±2°C accuracy at 25°C and ±3°C over the full temperature range.
- Single 2.7 V to 5.5 V power supply operation.
- Successive approximation converter with a capacitor DAC.
- Inherent track-and-hold functionality.
- On-chip clock oscillator and 2.5 V reference voltage source (internal or external).
- SPI serial interface for data communication.
- Four single-ended analog input channels.
Applications
- Industrial automation and control systems.
- Medical devices requiring precise temperature monitoring.
- Aerospace and defense applications where temperature and voltage measurements are critical.
- Automotive systems for engine and environmental monitoring.
- Consumer electronics requiring integrated temperature and voltage sensing.
Q & A
- What is the resolution of the AD7817BRZ-REEL ADC?
The AD7817BRZ-REEL has a 10-bit resolution.
- How many analog input channels does the AD7817BRZ-REEL have?
The device has four single-ended analog input channels.
- What is the operating voltage range of the AD7817BRZ-REEL?
The device operates from a single 2.7 V to 5.5 V power supply.
- What is the accuracy of the on-chip temperature sensor?
The temperature sensor has an accuracy of ±2°C at 25°C and ±3°C over the full temperature range.
- What type of output interface does the AD7817BRZ-REEL use?
The device uses an SPI serial interface for data communication.
- What is the package type of the AD7817BRZ-REEL?
The device is packaged in a 16-SOIC (0.154", 3.90mm Width).
- Can the AD7817BRZ-REEL use an external reference voltage?
- What is the conversion rate of the AD7817BRZ-REEL?
The conversion rate is 100 kSPS.
- What are the typical applications of the AD7817BRZ-REEL?
The device is suitable for industrial automation, medical devices, aerospace, automotive systems, and consumer electronics requiring integrated temperature and voltage sensing.
- What is the operating temperature range of the AD7817BRZ-REEL?
The device operates within a temperature range of -40°C to 85°C.
