Overview
The AD5322ARM, produced by Analog Devices Inc., is a dual 12-bit buffered voltage output Digital-to-Analog Converter (DAC) designed for a wide range of applications. This device operates from a single +2.5 V to +5.5 V supply, consuming 230 µA at 3 V, making it suitable for portable battery-operated equipment. The AD5322ARM features on-chip output amplifiers that allow the outputs to swing rail-to-rail with a slew rate of 0.7 V/µs. It utilizes a versatile 3-wire serial interface compatible with standard SPI, QSPI, MICROWIRE, and DSP interface standards, enabling easy integration into various systems.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Series | AD5322 | Resolution | 12 bit |
| Sampling Rate | 125 kS/s | Number of Channels | 2 Channel |
| Settling Time | 8 µs | Interface Type | 3-Wire, DSP, Microwire, QSPI, SPI |
| Minimum Operating Temperature | -40°C | Maximum Operating Temperature | +105°C |
| Mounting Style | SMD/SMT | Brand | Analog Devices |
| Number of Converters | 2 Converter | Power Dissipation | 2.5 mW |
| Reference Type | External | Supply Voltage - Max | 5.5 V |
| Supply Voltage - Min | 2.5 V | Unit Weight | 0.005051 oz |
Key Features
- 12-bit resolution with two DACs
- SPI/DSP interface for easy integration
- External reference input for flexibility
- Voltage-buffered output for improved noise immunity
- Operating temperature range of -40°C to 105°C
- On-chip rail-to-rail output buffer amplifiers
- Power-on-reset to 0 V and power-down feature to 200 nA at 5 V (50 nA at 3 V)
- Simultaneous update of DAC outputs via LDAC input
Applications
- Portable battery-powered instruments
- Digital gain and offset adjustment
- Programmable voltage and current sources
- Programmable attenuators
- Industrial automation
- Medical devices
- Consumer electronics
- Audio processing
- Data acquisition systems
- Motor control systems
Q & A
- Q: What is the resolution of the AD5322ARM?
A: The AD5322ARM has a resolution of 12 bits with two DACs.
- Q: What is the operating voltage range of the AD5322ARM?
A: The AD5322ARM operates from a single +2.5 V to +5.5 V supply.
- Q: What type of interface does the AD5322ARM use?
A: The AD5322ARM utilizes a versatile 3-wire serial interface compatible with standard SPI, QSPI, MICROWIRE, and DSP interface standards.
- Q: What is the power consumption of the AD5322ARM?
A: The AD5322ARM consumes 230 µA at 3 V and reduces to 200 nA at 5 V (50 nA at 3 V) in power-down mode.
- Q: What is the settling time of the AD5322ARM?
A: The settling time of the AD5322ARM is 8 µs.
- Q: Does the AD5322ARM have a power-on-reset feature?
A: Yes, the AD5322ARM has a power-on-reset circuit that ensures the DAC outputs power-up to 0 V and remain there until a valid write takes place.
- Q: Can the outputs of both DACs be updated simultaneously?
A: Yes, the outputs of both DACs can be updated simultaneously using the asynchronous LDAC input.
- Q: What is the operating temperature range of the AD5322ARM?
A: The operating temperature range of the AD5322ARM is -40°C to 105°C.
- Q: Is the AD5322ARM suitable for automotive applications?
A: Yes, the AD5322ARM is qualified for automotive applications.
- Q: What is the warranty period for the AD5322ARM-REEL7 from Ovaga?
A: Ovaga offers a 1-year warranty on the AD5322ARM-REEL7.
