Overview
The DAC7512N/3KG4, produced by Texas Instruments, is a low-power, single, 12-bit buffered voltage output Digital-to-Analog Converter (DAC). It features an on-chip precision output amplifier that allows for rail-to-rail output swing. The DAC uses a versatile three-wire serial interface compatible with standard SPI, QSPI, Microwire, and DSP interfaces, operating at clock rates up to 30MHz. The device is designed for low power consumption, making it ideal for portable battery-operated equipment.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 12-bit |
| Power Supply Range | +2.7V to +5.5V |
| Operating Temperature Range | -40°C to 105°C |
| Power Consumption (Normal Operation) | 135µA at 5V |
| Power Consumption (Power-Down Mode) | 50nA at 5V, 1µW |
| Output Amplifier | Rail-to-Rail Operation |
| Serial Interface | Three-wire serial interface, compatible with SPI, QSPI, Microwire, and DSP interfaces |
| Package Options | SOT23-6, MSOP-8 |
Key Features
- MicroPower operation: 135µA at 5V
- Power-down mode: 50nA at 5V, 1µW
- On-chip output buffer amplifier with rail-to-rail operation
- Power-on reset to 0V
- Three power-down functions
- Low power serial interface with Schmitt-triggered inputs
- SYNC/Interrupt facility
- Tested monotonic by design
Applications
- Portable battery-powered instruments
- Digital gain and offset adjustment
- Programmable voltage and current sources
Q & A
- What is the resolution of the DAC7512N/3KG4?
The DAC7512N/3KG4 has a 12-bit resolution.
- What is the power supply range for the DAC7512N/3KG4?
The power supply range is +2.7V to +5.5V.
- What are the operating temperature ranges for the DAC7512N/3KG4?
The operating temperature range is -40°C to 105°C.
- How much power does the DAC7512N/3KG4 consume in normal operation?
In normal operation, it consumes 135µA at 5V.
- What is the power consumption in power-down mode?
In power-down mode, it consumes 50nA at 5V, or 1µW.
- What type of output amplifier does the DAC7512N/3KG4 have?
The DAC7512N/3KG4 has an on-chip output buffer amplifier with rail-to-rail operation.
- What types of serial interfaces are supported by the DAC7512N/3KG4?
The DAC7512N/3KG4 supports SPI, QSPI, Microwire, and DSP interfaces.
- What package options are available for the DAC7512N/3KG4?
The DAC7512N/3KG4 is available in SOT23-6 and MSOP-8 packages.
- What are some common applications for the DAC7512N/3KG4?
Common applications include portable battery-powered instruments, digital gain and offset adjustment, and programmable voltage and current sources.
- Does the DAC7512N/3KG4 have a power-on reset feature?
Yes, the DAC7512N/3KG4 has a power-on reset circuit that ensures the DAC output powers up at 0V.
