Overview
The AD5324BRM is a high-performance quad 12-bit digital-to-analog converter (DAC) produced by Analog Devices Inc. This device is designed to provide accurate and fast conversion from digital signals to analog voltage outputs. It operates from a single supply voltage ranging from 2.5 V to 5.5 V and is suitable for various applications requiring precise analog output control.
The AD5324BRM features a resistor-string DAC architecture followed by an output buffer amplifier, ensuring rail-to-rail output swing with a slew rate of 0.7 V/μs. The device is compatible with multiple interface protocols, including SPI, QSPI, MICROWIRE, and DSP, making it versatile for different system designs.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Resolution | 12 bits | Number of Channels | 4 channels |
| Supply Voltage Range | 2.5 V to 5.5 V | Power Consumption | 500 μA @ 3 V, 600 μA @ 5 V |
| Output Type | Voltage Buffered | Interface Type | 3-Wire, SPI, QSPI, MICROWIRE, DSP |
| Minimum Operating Temperature | −40°C | Maximum Operating Temperature | +105°C |
| Settling Time | 8 μs | Slew Rate | 0.7 V/μs |
| Power-Down Current | 80 nA @ 3 V, 200 nA @ 5 V | Reference Input Range | 0.25 V to VDD |
Key Features
- 12-bit resolution with high linearity (±10 LSB INL for B Version)
- Four independent buffered voltage output channels with rail-to-rail output swing
- Low power operation: 500 μA at 3 V and 600 μA at 5 V
- Power-down mode reducing current to 80 nA at 3 V and 200 nA at 5 V
- Guaranteed monotonic by design over all codes
- Simultaneous update of outputs via LDAC function
- Compatible with SPI, QSPI, MICROWIRE, and DSP interface standards
- On-chip, rail-to-rail output buffer amplifiers
- Temperature range: −40°C to +105°C
Applications
- Data acquisition systems
- Industrial control and automation
- Medical devices and equipment
- Aerospace and defense applications
- Portable battery-powered instruments
- Digital gain and offset adjustment
- Programmable voltage and current sources
- Programmable attenuators
Q & A
- What is the resolution of the AD5324BRM DAC?
The AD5324BRM has a 12-bit resolution.
- What is the supply voltage range for the AD5324BRM?
The supply voltage range is from 2.5 V to 5.5 V.
- How many output channels does the AD5324BRM have?
The AD5324BRM has four independent buffered voltage output channels.
- What interface protocols is the AD5324BRM compatible with?
The device is compatible with SPI, QSPI, MICROWIRE, and DSP interface standards.
- What is the slew rate of the output buffer amplifiers?
The slew rate of the output buffer amplifiers is 0.7 V/μs.
- What is the power consumption of the AD5324BRM in normal operation?
The power consumption is typically 500 μA at 3 V and 600 μA at 5 V.
- What is the power-down current of the AD5324BRM?
The power-down current is 80 nA at 3 V and 200 nA at 5 V.
- Is the AD5324BRM guaranteed to be monotonic?
Yes, the AD5324BRM is guaranteed to be monotonic by design over all codes.
- What is the temperature range of the AD5324BRM?
The temperature range is −40°C to +105°C.
- Can the outputs of the AD5324BRM be updated simultaneously?
Yes, the outputs can be updated simultaneously using the LDAC function.
