Overview
The AD5304ARM, produced by Analog Devices Inc., is a quad 8-bit buffered voltage output Digital-to-Analog Converter (DAC) designed for low power consumption and high performance. This device is part of the AD5304/AD5314/AD5324 family, which includes 8-, 10-, and 12-bit resolutions, respectively. The AD5304ARM operates from a single supply voltage ranging from 2.5 V to 5.5 V and is packaged in a 10-lead MSOP or 10-lead LFCSP.
The device features on-chip rail-to-rail output buffer amplifiers, ensuring a full output voltage range from 0 V to VREF. It is designed for use in various 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 | Unit | Conditions/Comments |
|---|---|---|---|
| Number of Bits | 8 | ||
| Number of Converters | 4 | ||
| Voltage Supply Source | Single Supply | 2.5 V to 5.5 V | |
| Power Consumption | 500 μA @ 3 V, 600 μA @ 5 V | μA | |
| Power-Down Current | 80 nA @ 3 V, 200 nA @ 5 V | nA | |
| Operating Temperature | −40°C to +105°C | °C | |
| Output Range | 0 V to VREF | V | |
| Slew Rate | 0.7 V/μs | V/μs | |
| Settling Time | 6 μs | μs | |
| Data Interface | Serial (SPI, QSPI, MICROWIRE, DSP compatible) | ||
| Package Type | 10-lead MSOP, 10-lead LFCSP |
Key Features
- Low Power Operation: Consumes 500 μA at 3 V and 600 μA at 5 V, with a power-down mode reducing current to 80 nA at 3 V and 200 nA at 5 V.
- Rail-to-Rail Output: On-chip output buffer amplifiers provide rail-to-rail output swing with a slew rate of 0.7 V/μs.
- Serial Interface: Compatible with SPI, QSPI, MICROWIRE, and DSP interface standards, operating at clock rates up to 30 MHz.
- Simultaneous Update: Outputs of all DACs can be updated simultaneously using the LDAC function.
- Power-On Reset: Ensures DAC outputs power up to 0 V and remain there until a valid write takes place.
- Double-Buffered Input Logic: Allows simultaneous update of multiple DACs in a system.
Applications
- Portable Battery-Powered Instruments: Ideal for devices requiring low power consumption and precise voltage control.
- Digital Gain and Offset Adjustment: Useful in applications needing adjustable gain and offset settings.
- Programmable Voltage and Current Sources: Can be used to generate programmable voltage and current outputs.
- Programmable Attenuators: Suitable for applications requiring adjustable attenuation levels.
- Industrial Process Controls: Applicable in industrial settings for precise control over processes.
Q & A
- What is the resolution of the AD5304ARM DAC?
The AD5304ARM is an 8-bit DAC.
- What is the operating voltage range of the AD5304ARM?
The device operates from a single supply voltage ranging from 2.5 V to 5.5 V.
- What is the power consumption of the AD5304ARM?
The device consumes 500 μA at 3 V and 600 μA at 5 V).
- What is the slew rate of the output buffer amplifiers?
The slew rate is 0.7 V/μs).
- What type of interface does the AD5304ARM use?
The device uses a 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards).
- Can the outputs of all DACs be updated simultaneously?
Yes, the outputs can be updated simultaneously using the LDAC function).
- What happens to the DAC outputs during power-on?
The DAC outputs power up to 0 V and remain there until a valid write takes place).
- What is the temperature range of the AD5304ARM?
The operating temperature range is −40°C to +105°C).
- What are some common applications of the AD5304ARM?
Common applications include portable battery-powered instruments, digital gain and offset adjustment, programmable voltage and current sources, programmable attenuators, and industrial process controls).
- What is the package type of the AD5304ARM?
The device is available in 10-lead MSOP and 10-lead LFCSP packages).
