Overview
The AD5324ARM, produced by Analog Devices Inc., is a quad 12-bit buffered voltage output Digital-to-Analog Converter (DAC) available in 10-lead MSOP and 10-lead LFCSP packages. This device operates from a single 2.5 V to 5.5 V supply, consuming 500 μA at 3 V and 600 μA at 5 V. It is designed for low power operation and features on-chip output buffer amplifiers that provide rail-to-rail output swing with a slew rate of 0.7 V/μs. The AD5324ARM is well-suited for applications requiring precise voltage output control, such as portable battery-powered instruments, digital gain and offset adjustment, and industrial process controls.
Key Specifications
| Parameter | Value | Notes |
|---|---|---|
| Resolution | 12 bits | |
| Supply Voltage | 2.5 V to 5.5 V | |
| Current Consumption | 500 μA @ 3 V, 600 μA @ 5 V | |
| Power-Down Current | 80 nA @ 3 V, 200 nA @ 5 V | |
| Output Range | 0 V to VREF | |
| Slew Rate | 0.7 V/μs | |
| Interface Compatibility | SPI, QSPI, MICROWIRE, DSP | 3-wire serial interface |
| Temperature Range | −40°C to +105°C | |
| Integral Nonlinearity (INL) | ±16 LSB (A Version), ±10 LSB (B Version) | |
| Differential Nonlinearity (DNL) | ±0.2 LSB (A Version), ±1 LSB (B Version) |
Key Features
- Quad 12-bit buffered voltage output DACs in 10-lead MSOP and 10-lead LFCSP packages.
- Low power operation: 500 μA at 3 V and 600 μA at 5 V.
- Power-down feature reducing current to 80 nA @ 3 V and 200 nA @ 5 V.
- On-chip rail-to-rail output buffer amplifiers with a slew rate of 0.7 V/μs.
- 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards.
- Simultaneous update of outputs using the LDAC function.
- Power-on reset to 0 V and guaranteed monotonic by design over all codes.
- Qualified for automotive and industrial applications.
Applications
- Portable battery-powered instruments.
- Digital gain and offset adjustment.
- Programmable voltage and current sources.
- Programmable attenuators.
- Industrial process controls.
Q & A
- What is the resolution of the AD5324ARM DAC?
The AD5324ARM has a resolution of 12 bits.
- What is the operating voltage range of the AD5324ARM?
The AD5324ARM operates from a single 2.5 V to 5.5 V supply.
- How much current does the AD5324ARM consume during normal operation?
The AD5324ARM consumes 500 μA at 3 V and 600 μA at 5 V.
- What is the power-down current of the AD5324ARM?
The power-down current is 80 nA at 3 V and 200 nA at 5 V.
- What is the slew rate of the output buffer amplifiers in the AD5324ARM?
The slew rate is 0.7 V/μs.
- What interfaces is the AD5324ARM compatible with?
The AD5324ARM is compatible with SPI, QSPI, MICROWIRE, and DSP interfaces.
- What is the temperature range of the AD5324ARM?
The temperature range is −40°C to +105°C.
- Does the AD5324ARM have a power-on reset feature?
Yes, the AD5324ARM has a power-on reset feature that sets the DAC outputs to 0 V until a valid write takes place.
- Can the outputs of the AD5324ARM be updated simultaneously?
Yes, the outputs can be updated simultaneously using the LDAC function.
- What are some typical applications of the AD5324ARM?
Typical applications include portable battery-powered instruments, digital gain and offset adjustment, programmable voltage and current sources, programmable attenuators, and industrial process controls.
