Overview
The DAC7512E/2K5, 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 is designed for low power consumption, making it ideal for portable battery-operated equipment. It operates with a versatile three-wire serial interface compatible with standard SPI, QSPI, Microwire, and DSP interfaces, and can handle clock rates up to 30MHz.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Resolution | 12-bit | ||||
| Power Supply | 2.7 | 5.5 | V | ||
| Current Consumption (Normal Mode) | VDD = 5V | 135 | 200 | µA | |
| Current Consumption (Power-Down Mode) | VDD = 5V | 0.2 | 1 | µA | |
| Output Voltage Range | 0 | VDD | V | ||
| Serial Clock Frequency | up to 30 | MHz | |||
| Operating Temperature Range | -40 | 105 | °C | ||
| Package Types | SOT23-6, MSOP-8 |
Key Features
- MicroPower Operation: Low current consumption of 135µA at 5V and 1µW in power-down mode.
- Power-Down Modes: Four programmable power-down modes reducing current consumption to as low as 50nA at 5V.
- Rail-to-Rail Output Amplifier: Capable of generating rail-to-rail voltages, driving loads of 2kΩ in parallel with 1000pF to GND.
- Three-Wire Serial Interface: Compatible with SPI, QSPI, Microwire, and DSP interfaces, operating at clock rates up to 30MHz.
- Power-On Reset: Ensures the DAC output powers up at 0V and remains there until a valid write takes place.
- Sync Interrupt Facility: Provides an interrupt signal for synchronization.
Applications
- Portable Battery-Operated Equipment: Ideal due to its low power consumption.
- Process Control and Industrial Automation: Suitable for applications requiring precise analog output.
- Medical Devices: Low power and precise output make it suitable for medical equipment.
- Aerospace and Defense: Reliable and low-power operation is beneficial in these sectors.
Q & A
- What is the resolution of the DAC7512?
The DAC7512 has a 12-bit resolution.
- What is the power supply range for the DAC7512?
The power supply range is from 2.7V to 5.5V.
- How much current does the DAC7512 consume in normal operation at 5V?
The current consumption is 135µA at 5V.
- What is the current consumption in power-down mode at 5V?
The current consumption in power-down mode is as low as 50nA at 5V.
- What is the output voltage range of the DAC7512?
The output voltage range is from 0V to VDD.
- What types of serial interfaces is the DAC7512 compatible with?
The DAC7512 is compatible with SPI, QSPI, Microwire, and DSP interfaces.
- What is the maximum serial clock frequency for the DAC7512?
The maximum serial clock frequency is up to 30MHz.
- What are the package types available for the DAC7512?
The DAC7512 is available in SOT23-6 and MSOP-8 packages.
- Does the DAC7512 have a power-on reset feature?
Yes, the DAC7512 has a power-on reset circuit that ensures the output voltage is 0V until a valid write takes place.
- What is the operating temperature range for the DAC7512?
The operating temperature range is from -40°C to 105°C.
