Overview
The DAC7562SDGSR is a 12-bit, dual-channel, low-power, buffered voltage-output digital-to-analog converter (DAC) produced by Texas Instruments. This device is part of the DACxx6x family, which includes 12-bit, 14-bit, and 16-bit variants. The DAC7562SDGSR features a 2.5-V internal reference with a high accuracy and low temperature drift, making it suitable for applications requiring precise analog output.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 12 Bits | |
| Relative Accuracy | ±0.3 to ±0.75 LSB | |
| Differential Nonlinearity | ±0.05 to ±0.25 LSB | |
| Internal Reference Voltage | 2.5 V | |
| Reference Temperature Drift | 4 ppm/°C (typ), 10 ppm/°C (max) | |
| Power Supply Range | 2.7 V to 5.5 V | |
| Operating Temperature Range | –40°C to 125°C | |
| Power Consumption (Normal Mode) | 4 mW (typ) at 5 V | |
| Power Consumption (Power-Down Mode) | 550 nA (typ) at 5 V | |
| Output Voltage Range | 0 to AVDD V | |
| Output Voltage Settling Time | 10 µs (RL = 1 MΩ) | |
| Slew Rate | 0.75 V/µs (RL = ∞) | |
| Serial Clock Rate | Up to 50 MHz | |
| Package Type | 10-VSSOP |
Key Features
- Low power consumption with a typical power dissipation of 4 mW at 5 V, including the internal reference current.
- Internal 2.5-V reference with ±5 mV initial accuracy and 4 ppm/°C temperature drift.
- Monotonicity ensures excellent linearity and minimizes code-to-code transient voltages (glitch).
- Wide power-supply range from 2.7 V to 5.5 V.
- Output buffer with rail-to-rail operation.
- LDAC and CLR functions for asynchronous and synchronous updates.
- 50 MHz SPI interface compatible with standard SPI, QSPI, Microwire, and DSP interfaces.
- Power-on reset to zero scale or mid-scale depending on the device variant.
- Power-down feature reducing current consumption to typically 550 nA at 5 V.
Applications
- Portable instrumentation.
- PLC analog output modules.
- Closed-loop servo control.
- Voltage-controlled oscillator tuning.
- Data acquisition systems.
- Programmable gain and offset adjustment.
Q & A
- What is the resolution of the DAC7562SDGSR?
The DAC7562SDGSR has a resolution of 12 bits. - What is the internal reference voltage of the DAC7562SDGSR?
The internal reference voltage is 2.5 V with an initial accuracy of ±5 mV and a temperature drift of 4 ppm/°C. - What is the power consumption of the DAC7562SDGSR in normal mode?
The typical power consumption in normal mode is 4 mW at 5 V, including the internal reference current. - What is the power consumption in power-down mode?
The typical power consumption in power-down mode is 550 nA at 5 V. - What is the operating temperature range of the DAC7562SDGSR?
The operating temperature range is from –40°C to 125°C. - What is the maximum serial clock rate for the DAC7562SDGSR?
The serial clock rate can go up to 50 MHz. - What type of package is the DAC7562SDGSR available in?
The DAC7562SDGSR is available in a 10-VSSOP package. - Does the DAC7562SDGSR have a power-on reset feature?
Yes, the DAC7562SDGSR has a power-on reset feature that sets the output to zero scale. - What are some common applications of the DAC7562SDGSR?
Common applications include portable instrumentation, PLC analog output modules, closed-loop servo control, and data acquisition systems. - Is the DAC7562SDGSR compatible with standard SPI interfaces?
Yes, the DAC7562SDGSR is compatible with standard SPI, QSPI, Microwire, and DSP interfaces.
