Overview
The AD7818ARMZ-REEL, produced by Analog Devices Inc., is a 10-bit, single- and 4-channel analog-to-digital converter (ADC) with an integrated on-chip temperature sensor. This device operates from a single power supply voltage ranging from 2.7 V to 5.5 V, making it versatile for various applications. The AD7818 features a successive approximation converter based on a capacitor digital-to-analog converter (DAC), an on-chip clock oscillator, inherent track-and-hold functionality, and an on-chip 2.5 V reference. The temperature sensor can be accessed via Channel 0 and provides an accuracy of ±2°C.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 10 bits |
| Number of Channels | Single and 4 channels |
| Power Supply Voltage | 2.7 V to 5.5 V |
| Temperature Sensor Accuracy | ±2°C |
| Conversion Time | 9 μs |
| Power Consumption (at 1 kSPS) | 40 μW |
| Operating Temperature Range | -40°C to 85°C |
| Package Type | 8-MSOP (0.118", 3.00mm Width) |
| Interface | SPI |
Key Features
- High accuracy temperature sensor with ±2°C accuracy
- Single and 4-channel analog-to-digital conversion
- On-chip clock oscillator and track-and-hold functionality
- On-chip 2.5 V reference
- Low power consumption with automatic power-down feature
- SPI interface for communication with microcontrollers and processors
- Compact 8-MSOP package with good heat dissipation performance
- RoHS compliant and lead-free
Applications
- Industrial automation: real-time monitoring of temperature changes on production lines
- Automotive industry: measurement and control of engine, air conditioning, and other temperatures
- Medical equipment: precise measurement of body temperature and other physiological parameters
- Heavy industry: measurement of surface temperatures of steel casting, furnace, machine parts, and room temperatures
Q & A
- What is the resolution of the AD7818ARMZ-REEL ADC?
The AD7818ARMZ-REEL has a 10-bit resolution.
- How many channels does the AD7818ARMZ-REEL support?
The device supports single and 4-channel configurations.
- What is the operating voltage range of the AD7818ARMZ-REEL?
The device operates from 2.7 V to 5.5 V.
- What is the accuracy of the on-chip temperature sensor?
The temperature sensor has an accuracy of ±2°C.
- How long does a conversion take on the AD7818ARMZ-REEL?
Each conversion takes approximately 9 μs.
- What is the power consumption at 1 kSPS throughput rate?
The power consumption is 40 μW at 1 kSPS throughput rate.
- What interface does the AD7818ARMZ-REEL use for communication?
The device uses an SPI interface.
- What is the package type of the AD7818ARMZ-REEL?
The device is packaged in an 8-MSOP (0.118", 3.00mm Width) package.
- Is the AD7818ARMZ-REEL RoHS compliant?
Yes, the device is RoHS compliant and lead-free.
- What are some typical applications of the AD7818ARMZ-REEL?
Typical applications include industrial automation, automotive industry, medical equipment, and heavy industry.
