Overview
The DAC7512N/250G4, 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, making it suitable for a wide range of applications. The DAC7512 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
| Parameter | Value | Conditions |
|---|---|---|
| Resolution | 12-bit | |
| Output Type | Buffered Voltage Output | |
| Power Supply | +2.7V to +5.5V | |
| Current Consumption (Normal Mode) | 135µA at 5V, 115µA at 3V | VDD = +3.6V to +5.5V, VIH = VDD and VIL = GND |
| Current Consumption (Power-Down Mode) | 200nA at 5V, 50nA at 3V | VDD = +3.6V to +5.5V, VIH = VDD and VIL = GND |
| Power Consumption | 0.7mW at 5V, 1µW in power-down mode | |
| Serial Interface Clock Rate | Up to 30MHz | |
| Package Types | SOT23-6, MSOP-8 | |
| Operating Temperature | -40°C to 105°C |
Key Features
- MicroPOWER operation: 135µA at 5V
- Power-down feature: 200nA at 5V, 50nA at 3V
- On-chip output buffer amplifier with rail-to-rail operation
- Low power serial interface with Schmitt-triggered inputs
- Power-on reset to 0V
- Three power-down functions
- 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/250G4?
The DAC7512N/250G4 has a 12-bit resolution.
- What is the power supply range for the DAC7512N/250G4?
The power supply range is from +2.7V to +5.5V.
- How much current does the DAC7512N/250G4 consume in normal mode?
The current consumption is 135µA at 5V and 115µA at 3V.
- What is the power consumption in power-down mode?
The power consumption is 1µW in power-down mode.
- What types of packages are available for the DAC7512N/250G4?
The DAC7512N/250G4 is available in SOT23-6 and MSOP-8 packages.
- What is the operating temperature range for the DAC7512N/250G4?
The operating temperature range is from -40°C to 105°C.
- What serial interfaces is the DAC7512N/250G4 compatible with?
The DAC7512N/250G4 is compatible with standard SPI, QSPI, Microwire, and DSP interfaces.
- Does the DAC7512N/250G4 have a power-on reset feature?
Yes, the DAC7512N/250G4 has a power-on reset circuit that ensures the DAC output powers up at 0V.
- What are some typical applications of the DAC7512N/250G4?
Typical applications include portable battery-powered instruments, digital gain and offset adjustment, and programmable voltage and current sources.
- How does the DAC7512N/250G4 achieve its low power consumption?
The DAC7512N/250G4 achieves low power consumption through its microPOWER operation and power-down features.
