Overview
The AD5312BRMZ-REEL is a dual 10-bit buffered voltage output Digital-to-Analog Converter (DAC) produced by Analog Devices Inc. This component is part of the AD5302/AD5312/AD5322 family, which includes dual 8-, 10-, and 12-bit DACs. The AD5312 operates from a single 2.5 V to 5.5 V supply, consuming 230 μA at 3 V, making it suitable for low-power applications. It features on-chip output amplifiers that allow the outputs to swing rail-to-rail with a slew rate of 0.7 V/μs. The device is packaged in a 10-lead MSOP and is qualified for automotive applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Comments |
|---|---|---|---|---|---|
| Resolution | 10 bits | ||||
| Supply Voltage | 2.5 | 5.5 | V | ||
| Current Consumption | 230 | μA | @ 3 V | ||
| Power-Down Current | 50 | 200 | nA | @ 3 V and 5 V respectively | |
| Output Voltage Range | 0 | VREF | V | ||
| Slew Rate | 0.7 | V/μs | |||
| Output Settling Time | 7 | 9 | μs | ¼ Scale to ¾ Scale Change | |
| Relative Accuracy | ±2 | ±4 | LSB | A and B versions respectively | |
| Differential Nonlinearity | ±0.05 | ±0.5 | LSB | A and B versions respectively | |
Key Features
- Dual 10-bit buffered voltage output DACs in a single package.
- Operates from a single 2.5 V to 5.5 V supply.
- Micropower operation: 230 μA at 3 V.
- Power-down to 200 nA @ 5 V, 50 nA @ 3 V.
- On-chip rail-to-rail output buffer amplifiers.
- Guaranteed monotonic by design over all codes.
- Buffered/Unbuffered reference input options.
- Power-on-reset to 0 V.
- Simultaneous update of DAC outputs via LDAC.
- Low power serial interface with Schmitt-triggered inputs, compatible with SPI, QSPI, MICROWIRE, and DSP interface standards.
Applications
- Portable battery-powered instruments.
- Digital gain and offset adjustment.
- Programmable voltage and current sources.
- Programmable attenuators.
- Automotive applications.
Q & A
- What is the resolution of the AD5312BRMZ-REEL DAC?
The AD5312BRMZ-REEL has a resolution of 10 bits.
- What is the operating voltage range of the AD5312BRMZ-REEL?
The AD5312BRMZ-REEL operates from a single 2.5 V to 5.5 V supply.
- How much current does the AD5312BRMZ-REEL consume at 3 V?
The AD5312BRMZ-REEL consumes 230 μA at 3 V.
- What is the slew rate of the AD5312BRMZ-REEL's output amplifiers?
The slew rate of the output amplifiers is 0.7 V/μs.
- Is the AD5312BRMZ-REEL qualified for automotive applications?
- What is the output voltage range of the AD5312BRMZ-REEL?
The output voltage range is from 0 V to VREF.
- What interface standards is the AD5312BRMZ-REEL compatible with?
The AD5312BRMZ-REEL is compatible with SPI, QSPI, MICROWIRE, and DSP interface standards.
- How does the power-on-reset function work on the AD5312BRMZ-REEL?
The AD5312BRMZ-REEL has a power-on-reset function that sets the output to 0 V upon power-up.
- Can the DAC outputs be updated simultaneously on the AD5312BRMZ-REEL?
- What is the typical output settling time for the AD5312BRMZ-REEL?
The typical output settling time is 9 μs for a ¼ scale to ¾ scale change.
