Overview
The DAC6311IDCKR from Texas Instruments is a 10-bit, single-channel, low-power digital-to-analog converter (DAC) designed for a wide range of applications. This device is part of the DACx311 family, which includes 8-bit, 10-bit, and 12-bit resolutions. The DAC6311 operates on a power supply voltage of 2.0 V to 5.5 V and consumes a mere 80 μA at 2.0 V, making it ideal for battery-powered and portable devices. It features a versatile three-wire serial interface compatible with standard SPI, QSPI, Microwire, and digital signal processor (DSP) interfaces, operating at clock rates up to 50 MHz. The device includes an on-chip output buffer amplifier with rail-to-rail operation and a power-on reset circuit that sets the output to 0 V until a valid write occurs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 10-bit | |
| Power Supply Voltage | 2.0 V to 5.5 V | V |
| Current Consumption | 80 μA at 2.0 V | μA |
| Power-Down Current | 0.5 μA at 5 V, 0.1 μA at 2.0 V | μA |
| Operating Temperature | –40°C to +125°C | °C |
| Serial Clock Frequency | Up to 50 MHz | MHz |
| Output Voltage Range | 0 to AVDD V | V |
| Output Voltage Settling Time | 6 μs to 10 μs (depending on load) | μs |
| Package Type | SC70 (6-pin) |
Key Features
- Low power consumption: 80 μA at 2.0 V and 0.55 mW at 5 V, reducing to 2.5 μW in power-down mode.
- Wide power supply range: 2.0 V to 5.5 V.
- High-speed serial interface: Up to 50 MHz, compatible with SPI, QSPI, Microwire, and DSP interfaces.
- On-chip output buffer amplifier with rail-to-rail operation.
- Power-on reset to zero scale.
- SYNC interrupt facility.
- Extended temperature range: –40°C to +125°C.
- Pin-compatible family in a small, 6-pin SC70 package.
Applications
- Portable, battery-powered instruments.
- 4-mA to 20-mA loop-powered applications.
- Process control and industrial automation.
- Programmable voltage and current sources.
Q & A
- What is the resolution of the DAC6311?
The DAC6311 is a 10-bit digital-to-analog converter.
- What is the power supply voltage range for the DAC6311?
The power supply voltage range is 2.0 V to 5.5 V.
- How much current does the DAC6311 consume in normal operation?
The DAC6311 consumes 80 μA at 2.0 V.
- What is the maximum serial clock frequency for the DAC6311?
The maximum serial clock frequency is up to 50 MHz.
- What type of package does the DAC6311 come in?
The DAC6311 comes in a 6-pin SC70 package.
- What is the operating temperature range for the DAC6311?
The operating temperature range is –40°C to +125°C.
- Does the DAC6311 have a power-on reset feature?
Yes, the DAC6311 has a power-on reset circuit that sets the output to 0 V until a valid write occurs.
- Is the DAC6311 compatible with other interfaces besides SPI?
Yes, it is compatible with QSPI, Microwire, and DSP interfaces.
- What is the typical output voltage settling time for the DAC6311?
The typical output voltage settling time is 6 μs to 10 μs, depending on the load.
- Can the DAC6311 be used in industrial automation applications?
Yes, it is suitable for process control and industrial automation applications.
