Overview
The DAC7512E/250 is a low-power, single, 12-bit buffered voltage output Digital-to-Analog Converter (DAC) produced by Texas Instruments. This device is designed for applications requiring high precision and low power consumption. The DAC7512E/250 features an on-chip precision output amplifier that allows for rail-to-rail output swing, ensuring the widest dynamic output range possible. It operates with a versatile three-wire serial interface compatible with standard SPI, QSPI, Microwire, and DSP interfaces, and supports clock rates up to 30MHz.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Power Supply | +2.7V to +5.5V |
| Power Consumption (Normal Operation) | 135uA at 5V, 0.7mW at 5V |
| Power Consumption (Power-Down) | 200nA at 5V, 50nA at 3V, 1uW in power-down mode |
| Output Range | Rail-to-rail output swing |
| Serial Interface | Three-wire serial interface, compatible with SPI, QSPI, Microwire, and DSP interfaces |
| Clock Rate | Up to 30MHz |
| Package Options | SOT23-6, MSOP-8, VSSOP-8 |
| Operating Temperature | -40°C to 105°C |
| Settling Time | 10us (max) |
Key Features
- Low-power operation with microPOWER consumption
- Rail-to-rail output swing due to on-chip precision output amplifier
- Three power-down functions to minimize current consumption
- Power-on reset to 0V
- Low power serial interface with Schmitt-triggered inputs
- SYNC/INTERRUPT facility
- Compatible with standard SPI, QSPI, Microwire, and DSP interfaces
Applications
- Portable battery-powered instruments
- Digital gain and offset adjustment
- Programmable voltage and current sources
Q & A
- What is the resolution of the DAC7512E/250?
The DAC7512E/250 has a resolution of 12 bits.
- What is the power supply range for the DAC7512E/250?
The power supply range is +2.7V to +5.5V.
- How much power does the DAC7512E/250 consume in normal operation?
The device consumes 135uA at 5V, which translates to 0.7mW at 5V.
- What are the power-down current consumption values for the DAC7512E/250?
In power-down mode, the current consumption is 200nA at 5V and 50nA at 3V.
- What is the output range of the DAC7512E/250?
The output range is rail-to-rail.
- What types of serial interfaces is the DAC7512E/250 compatible with?
The device is compatible with SPI, QSPI, Microwire, and DSP interfaces.
- What are the package options available for the DAC7512E/250?
The device is available in SOT23-6, MSOP-8, and VSSOP-8 packages.
- What is the operating temperature range for the DAC7512E/250?
The operating temperature range is -40°C to 105°C.
- What is the settling time of the DAC7512E/250?
The settling time is up to 10us.
- What are some typical applications of the DAC7512E/250?
Typical applications include portable battery-powered instruments, digital gain and offset adjustment, and programmable voltage and current sources.
