Overview
The DAC7513E/250G4, produced by Texas Instruments, is a low-power, single, 12-bit buffered voltage output Digital-to-Analog Converter (DAC). This device features a versatile 3-wire serial interface compatible with standard SPI, QSPI, Microwire, and DSP interfaces, operating at clock rates up to 30MHz. The DAC7513 includes an on-chip precision output amplifier that allows for rail-to-rail output swing, making it suitable for a variety of applications requiring precise analog output.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Resolution | 12 | Bits | ||
| Relative Accuracy | ±8 | LSB | ||
| Differential Nonlinearity | ±1 | LSB | ||
| Zero Code Error | +5 | +20 | mV | |
| Full-Scale Error | -0.15 | -1.25 | % of FSR | |
| Gain Error | ±1.25 | % of FSR | ||
| Output Voltage Range | 0 | VREF | V | |
| Output Voltage Settling Time | 8 | 10 | 12 | µs |
| VDD | 2.7 | 5.5 | V | |
| IDD (normal mode) | 100 | 115 | 170 | µA |
| IDD (power-down mode) | 0.05 | 1 | µA | |
| Operating Temperature Range | -40 | +105 | °C |
Key Features
- Low-power operation: 115µA at 5V
- Power-on reset to zero
- Power supply: +2.7V to +5.5V
- Ensured monotonic by design
- Settling time: 10µs to 1LSB
- Low-power serial interface with Schmitt-triggered inputs
- On-chip output buffer amplifier with rail-to-rail operation
- SYNC interrupt facility
- Available in SOT23-8 and MSOP-8 packages
- Power-down feature with three modes: output 1kΩ to GND, output 100kΩ to GND, or High-Z
Applications
- Process control
- Data acquisition systems
- Closed-loop servo-control
- PC peripherals
- Portable instrumentation
- Programmable attenuation
Q & A
- What is the resolution of the DAC7513?
The DAC7513 has a resolution of 12 bits.
- What is the maximum clock rate for the serial interface?
The serial interface can operate at clock rates up to 30MHz.
- What are the power-down modes available in the DAC7513?
The DAC7513 has three power-down modes: output 1kΩ to GND, output 100kΩ to GND, or High-Z.
- What is the typical current consumption in normal operation?
The typical current consumption in normal operation is 115µA at 5V.
- What is the output voltage range of the DAC7513?
The output voltage range is from 0V to VREF.
- What is the settling time for the output voltage?
The settling time is typically 10µs to 1LSB.
- Is the DAC7513 ensured to be monotonic?
Yes, the DAC7513 is ensured monotonic by design.
- What are the available package types for the DAC7513?
The DAC7513 is available in SOT23-8 and MSOP-8 packages.
- What is the operating temperature range for the DAC7513?
The operating temperature range is from -40°C to +105°C.
- How does the power-on reset feature work?
The power-on reset circuit ensures that the DAC output powers up at 0V and remains there until a valid write takes place.
