Overview
The AD5328ARU is a 12-bit octal buffered voltage output Digital-to-Analog Converter (DAC) produced by Analog Devices Inc. This device is part of the AD5308/AD5318/AD5328 family, which includes 8-, 10-, and 12-bit resolutions, respectively. The AD5328ARU operates from a single 2.5 V to 5.5 V supply and is housed in a 16-lead TSSOP package. It is designed for low power consumption, typically 0.7 mA at 3 V, and features on-chip output amplifiers that allow rail-to-rail output swing with a slew rate of 0.7 V/μs.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Number of DACs | 8 |
| Supply Voltage | 2.5 V to 5.5 V |
| Current Consumption | 0.7 mA @ 3 V |
| Power-Down Current | 120 nA @ 3 V, 400 nA @ 5 V |
| Output Range | 0 V to VREF or 0 V to 2 VREF |
| Slew Rate | 0.7 V/μs |
| Interface | 3-wire serial (SPI, QSPI, MICROWIRE, DSP compatible) |
| Clock Rate | Up to 30 MHz |
| Operating Temperature | −40°C to +125°C |
| Package | 16-lead TSSOP |
Key Features
- Guaranteed monotonic by design over all codes
- Individual channel power-down with high impedance output
- Simultaneous update of outputs using the asynchronous LDAC input
- Power-on reset to 0 V
- Buffered, unbuffered, or VDD reference input options
- Rail-to-rail output swing with on-chip output buffer amplifiers
- Low power operation and power-down mode
- Compatible with standard SPI, QSPI, MICROWIRE, and DSP interface standards
Applications
- Portable battery-powered instruments
- Digital gain and offset adjustment
- Programmable voltage and current sources
- Optical networking
- Automatic test equipment
- Mobile communications
- Programmable attenuators
- Industrial process control
Q & A
- What is the resolution of the AD5328ARU?
The AD5328ARU has a resolution of 12 bits.
- What is the supply voltage range for the AD5328ARU?
The AD5328ARU operates from a single 2.5 V to 5.5 V supply.
- How many DACs are included in the AD5328ARU?
The AD5328ARU includes 8 DACs.
- What is the typical current consumption of the AD5328ARU at 3 V?
The typical current consumption is 0.7 mA at 3 V.
- What is the power-down current of the AD5328ARU?
The power-down current is 120 nA at 3 V and 400 nA at 5 V.
- What is the output range of the AD5328ARU?
The output range is 0 V to VREF or 0 V to 2 VREF.
- What is the slew rate of the AD5328ARU's output amplifiers?
The slew rate is 0.7 V/μs.
- What interfaces are supported by the AD5328ARU?
The AD5328ARU supports 3-wire serial interfaces compatible with SPI, QSPI, MICROWIRE, and DSP standards.
- What is the maximum clock rate for the serial interface?
The maximum clock rate is up to 30 MHz.
- What is the operating temperature range of the AD5328ARU?
The operating temperature range is −40°C to +125°C.
