Overview
The AD7391ARZ-REEL is a 10-bit digital-to-analog converter (DAC) produced by Analog Devices Inc. This component is part of the AD7390/AD7391 family, known for their low power consumption and single-supply operation. The AD7391 is designed to operate from a single 3V supply, making it ideal for battery-operated and power-sensitive applications. It features a serial-input interface compatible with SPI and QSPI, and it includes a voltage-switched, laser-trimmed DAC, rail-to-rail output op amps, and a separate serial-input register and DAC register.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 10 bits |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Supply Current | Less than 100 µA (typical), 55 µA (typical) at no load, 100 µA (maximum) |
| Settling Time | 70 µs (typical) to 0.1% of full scale |
| Output Type | Voltage - Buffered |
| Interface | SPI and QSPI compatible, serial-data input (SDI), clock (CLK), and load (LD) pins |
| Package | 8-SOIC (0.154", 3.90mm Width) |
| Operating Temperature Range | -40°C to 125°C |
| RoHS Status | Lead free / RoHS Compliant |
Key Features
- Low power consumption, making it suitable for battery-operated and power-sensitive applications.
- Single-supply operation from 2.7 V to 5.5 V.
- SPI and QSPI compatible serial-data interface.
- Rail-to-rail output op amps.
- Separate serial-input register and DAC register, allowing preloading of new data without disturbing the present DAC values.
- CLR pin for resetting the DAC register to zero-scale.
- Full-scale voltage output determined by the external reference input voltage.
Applications
- Automotive systems.
- Portable communications devices.
- Digitally controlled calibration systems.
- Battery-operated devices requiring low power consumption.
Q & A
- What is the resolution of the AD7391ARZ-REEL?
The AD7391ARZ-REEL has a 10-bit resolution.
- What is the supply voltage range for the AD7391ARZ-REEL?
The supply voltage range is from 2.7 V to 5.5 V.
- How much current does the AD7391ARZ-REEL typically consume?
The AD7391ARZ-REEL typically consumes less than 100 µA, with 55 µA at no load and a maximum of 100 µA.
- What is the settling time of the AD7391ARZ-REEL?
The settling time is typically 70 µs to 0.1% of full scale.
- What type of interface does the AD7391ARZ-REEL use?
The AD7391ARZ-REEL uses an SPI and QSPI compatible serial-data interface.
- What is the package type of the AD7391ARZ-REEL?
The package type is 8-SOIC (0.154", 3.90mm Width).
- What is the operating temperature range of the AD7391ARZ-REEL?
The operating temperature range is from -40°C to 125°C.
- Is the AD7391ARZ-REEL RoHS compliant?
Yes, the AD7391ARZ-REEL is lead free and RoHS compliant.
- What are some common applications for the AD7391ARZ-REEL?
Common applications include automotive systems, portable communications devices, digitally controlled calibration systems, and battery-operated devices.
- How does the AD7391ARZ-REEL handle data loading?
The AD7391ARZ-REEL loads data in MSB-first format through its serial-data input (SDI) pin, with the clock (CLK) and load (LD) pins controlling the data flow.
