Overview
The AD5314ARM-REEL7, produced by Analog Devices Inc., is a quad 10-bit digital-to-analog converter (DAC) designed for a variety of applications requiring precise voltage output. This device operates from a single supply voltage ranging from 2.5 V to 5.5 V and consumes a low current of 500 μA at 3 V. It features four buffered voltage output channels, each capable of rail-to-rail output swing, making it suitable for industrial process controls, programmable voltage and current sources, and programmable attenuators.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Supply Voltage | 2.5 | 5.5 | V | ||
| Current Consumption | 500 | μA | At 3 V, interface inactive, all DACs active | ||
| Resolution | 10 | bits | |||
| Output Voltage Settling Time | 7 | 9 | μs | ¼ scale to ¾ scale change (0x100 to 0x300) | |
| Slew Rate | 0.7 | V/μs | |||
| Digital Interface Clock Rate | 30 | MHz | Compatible with SPI, QSPI, MICROWIRE, and DSP interface standards | ||
| Reference Input Range | 0.25 | VDD | V |
Key Features
- Quad 10-bit DACs: Four independent DAC channels with 10-bit resolution.
- Buffered Voltage Output: Each DAC has a buffered voltage output with rail-to-rail operation.
- Low Power Consumption: Operates with a low current consumption of 500 μA at 3 V.
- Wide Supply Voltage Range: Compatible with supply voltages from 2.5 V to 5.5 V.
- High-Speed Digital Interface: Supports clock rates up to 30 MHz and is compatible with SPI, QSPI, MICROWIRE, and DSP interface standards.
- Power-On Reset and Power-Down Feature: Ensures DAC outputs power up to 0 V and can be completely turned off with high impedance output.
- Single Reference Input Pin: All four DACs share a single reference input pin.
Applications
- Industrial Process Controls: Suitable for applications requiring precise voltage control in industrial settings.
- Programmable Voltage and Current Sources: Can be used to generate programmable voltage and current outputs.
- Programmable Attenuators: Useful in applications where adjustable attenuation is required.
- Automotive and Aerospace: Given its robust specifications, it can be used in automotive and aerospace applications where reliability and precision are critical.
Q & A
- What is the resolution of the AD5314ARM-REEL7 DAC?
The AD5314ARM-REEL7 has a resolution of 10 bits.
- What is the supply voltage range for the AD5314ARM-REEL7?
The device operates from a single supply voltage ranging from 2.5 V to 5.5 V.
- How much current does the AD5314ARM-REEL7 consume at 3 V?
The device consumes 500 μA at 3 V.
- What is the slew rate of the output amplifiers?
The slew rate of the output amplifiers is 0.7 V/μs.
- What digital interfaces does the AD5314ARM-REEL7 support?
The device supports SPI, QSPI, MICROWIRE, and DSP interface standards.
- Can the DAC outputs be updated simultaneously?
Yes, the outputs of all DACs can be updated simultaneously using the software LDAC function.
- What is the settling time for the output voltage?
The output voltage settling time is typically 9 μs for a ¼ scale to ¾ scale change.
- Does the AD5314ARM-REEL7 have a power-on reset feature?
Yes, the device has a power-on reset circuit that ensures the DAC outputs power up to 0 V.
- Can the DACs be powered down completely?
Yes, the device has a power-down feature that allows all DACs to be turned off completely with high impedance output.
- What is the reference input range for the DACs?
The reference input range is from 0.25 V to VDD.
