Overview
The AD5320BRT-REEL7 is a single, 12-bit buffered voltage-out digital-to-analog converter (DAC) produced by Analog Devices Inc. This device operates from a single supply voltage ranging from 2.7 V to 5.5 V and consumes a low current of 115 µA at 3 V. It features an on-chip precision output amplifier that enables rail-to-rail output swing, making it suitable for a wide range of applications. The AD5320 is part of a family of pin-compatible DACs, including the 8-bit AD5300 and the 10-bit AD5310.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Resolution | Number of bits | 12 bits |
| Supply Voltage | Operating voltage range | 2.7 V to 5.5 V |
| Current Consumption | At 3 V supply | 115 µA |
| Power Consumption | At 5 V supply | 0.7 mW |
| Power-Down Current | At 5 V supply | 200 nA |
| Output Range | Rail-to-rail output swing | 0 V to VDD |
| Serial Interface | Compatibility and clock rate | Compatible with SPI, QSPI, MICROWIRE, and DSP; up to 30 MHz |
| Temperature Range | Operating temperature range | -40°C to +105°C (B Version) |
| Package | Available packages | 6-lead SOT-23, 8-lead MSOP |
Key Features
- Rail-to-Rail Output Swing: The on-chip precision output amplifier allows for rail-to-rail output swing, ensuring the widest dynamic output range.
- Low Power Consumption: The device consumes only 115 µA at 3 V and reduces to 1 µW in power-down mode, making it ideal for battery-operated equipment.
- Power-On Reset: The DAC output powers up to zero volts and remains there until a valid write takes place.
- Power-Down Feature: Software selectable output loads while in power-down mode, reducing current consumption to 200 nA at 5 V.
- Versatile Serial Interface: Compatible with standard SPI, QSPI, MICROWIRE, and DSP interface standards, operating at clock rates up to 30 MHz.
- Temperature Range: Operates over a wide temperature range of -40°C to +105°C (B Version).
Applications
- Portable Battery-Powered Instruments: Ideal for low-power, battery-operated devices due to its low current consumption.
- Digital Gain and Offset Adjustment: Used in applications requiring precise digital control over gain and offset.
- Programmable Voltage and Current Sources: Suitable for creating programmable voltage and current sources with high precision.
- Programmable Attenuators: Can be used in programmable attenuator circuits where precise control over attenuation is required.
Q & A
- What is the resolution of the AD5320BRT-REEL7?
The AD5320BRT-REEL7 is a 12-bit DAC.
- What is the operating voltage range of the AD5320BRT-REEL7?
The device operates from a single supply voltage ranging from 2.7 V to 5.5 V.
- How much current does the AD5320BRT-REEL7 consume at 3 V supply?
The device consumes 115 µA at 3 V supply.
- What is the power consumption of the AD5320BRT-REEL7 at 5 V supply?
The power consumption is 0.7 mW at 5 V supply.
- What is the current consumption in power-down mode at 5 V supply?
The current consumption reduces to 200 nA in power-down mode at 5 V supply.
- What type of output does the AD5320BRT-REEL7 provide?
The device provides a rail-to-rail output swing.
- What is the compatibility of the serial interface of the AD5320BRT-REEL7?
The serial interface is compatible with standard SPI, QSPI, MICROWIRE, and DSP interface standards.
- What is the maximum clock rate of the serial interface?
The serial interface operates at clock rates up to 30 MHz.
- What is the operating temperature range of the AD5320BRT-REEL7?
The device operates over a temperature range of -40°C to +105°C (B Version).
- In what packages is the AD5320BRT-REEL7 available?
The device is available in 6-lead SOT-23 and 8-lead MSOP packages.
