Overview
The AD5304BRMZ is a quad 8-bit buffered voltage output Digital-to-Analog Converter (DAC) produced by Analog Devices Inc. This device operates from a single supply voltage ranging from 2.5 V to 5.5 V and is available in 10-lead MSOP and 10-lead LFCSP packages. It is designed for low power consumption, making it suitable for portable battery-operated equipment.
The AD5304BRMZ features four on-chip output buffer amplifiers that provide rail-to-rail output swing with a slew rate of 0.7 V/μs. The device incorporates a power-on reset circuit, ensuring that the DAC outputs power up to 0 V and remain there until a valid write takes place. It also includes programmable power-down modes to reduce current consumption significantly.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Comments |
|---|---|---|---|---|---|
| Resolution | 8 | 8 | 8 | Bits | |
| Relative Accuracy | ±0.15 | ±1 | ±0.15 | LSB | A Version |
| Relative Accuracy | ±0.625 | LSB | B Version | ||
| Differential Nonlinearity | ±0.02 | ±0.25 | ±0.02 | LSB | |
| Offset Error | ±0.4 | ±3 | % of FSR | ||
| Power Supply Range | 2.5 V | 5.5 V | V | ||
| Current Consumption @ 3 V | 500 μA | μA | |||
| Current Consumption @ 5 V | 600 μA | μA | |||
| Power-Down Current @ 3 V | 80 nA | nA | |||
| Power-Down Current @ 5 V | 200 nA | nA | |||
| Temperature Range | -40°C | 105°C | °C |
Key Features
- Quad 8-bit buffered voltage output DACs in 10-lead MSOP and 10-lead LFCSP packages.
- Single supply operation from 2.5 V to 5.5 V.
- Low power consumption: 500 μA at 3 V and 600 μA at 5 V.
- Power-down mode reducing current consumption 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.
- Double-buffered input logic and simultaneous update of outputs (LDAC function).
- 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards.
- Guaranteed monotonic by design over all codes.
- Power-on reset to 0 V.
Applications
- Portable battery-powered instruments.
- Digital gain and offset adjustment.
- Automotive applications (qualified for automotive use).
- Industrial control systems.
- Medical devices requiring precise analog output.
Q & A
- What is the resolution of the AD5304BRMZ DAC?
The AD5304BRMZ has a resolution of 8 bits.
- What is the power supply range for the AD5304BRMZ?
The device operates from a single supply voltage ranging from 2.5 V to 5.5 V.
- How much current does the AD5304BRMZ consume at 3 V and 5 V?
The device consumes 500 μA at 3 V and 600 μA at 5 V.
- What is the power-down current consumption of the AD5304BRMZ?
In power-down mode, the current consumption is 80 nA @ 3 V and 200 nA @ 5 V.
- What type of serial interface does the AD5304BRMZ use?
The device uses a 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards.
- Does the AD5304BRMZ have a power-on reset feature?
Yes, the device incorporates a power-on reset circuit that ensures the DAC outputs power up to 0 V.
- What is the slew rate of the output buffer amplifiers?
The slew rate of the output buffer amplifiers is 0.7 V/μs.
- Is the AD5304BRMZ suitable for automotive applications?
Yes, the device is qualified for automotive applications.
- What is the temperature range for the AD5304BRMZ?
The device operates over a temperature range of -40°C to 105°C.
- Does the AD5304BRMZ support simultaneous update of outputs?
Yes, the device supports simultaneous update of outputs using the LDAC function.
