Overview
The DAC8562SDGSR is a dual 16-bit, 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 versions. The DAC8562SDGSR is designed for high accuracy and low power consumption, making it ideal for various applications requiring precise analog output.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 16 bits | |
| Relative Accuracy (INL) | ±4 LSB | |
| Glitch Impulse | 0.1 nV-s | |
| Internal Reference Voltage | 2.5 V ± 5 mV | |
| Internal Reference Temperature Drift | 4 ppm/°C (typ), 10 ppm/°C (max) | |
| Reference Source/Sink Capability | Up to 20 mA | |
| Power Supply Range | 2.7 V to 5.5 V | |
| Power Consumption (Typical) | 4 mW (including internal reference current) | |
| Power-Down Current | Typically 550 nA at 5 V | |
| Operating Temperature Range | –40°C to 125°C | |
| Package Type | VSSOP-10 |
Key Features
- Low-power, voltage-output DAC with internal 2.5-V reference and 4-ppm/°C temperature drift.
- Monotonic operation with excellent linearity, minimizing code-to-code transient voltages (glitch).
- Three-wire serial interface compatible with SPI, QSPI, Microwire, and DSP interfaces, operating up to 50 MHz.
- 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.
- Output buffer with rail-to-rail operation.
- LDAC and CLR functions for synchronous data updates and clear operations.
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 DAC8562SDGSR?
The DAC8562SDGSR has a resolution of 16 bits.
- What is the typical power consumption of the DAC8562SDGSR?
The typical power consumption is 4 mW, including the internal reference current.
- What is the operating temperature range of the DAC8562SDGSR?
The operating temperature range is –40°C to 125°C.
- What type of interface does the DAC8562SDGSR use?
The DAC8562SDGSR uses a three-wire serial interface compatible with SPI, QSPI, Microwire, and DSP interfaces.
- What is the power-down current of the DAC8562SDGSR?
The power-down current is typically 550 nA at 5 V.
- Does the DAC8562SDGSR have an internal reference?
Yes, it includes a 2.5-V internal reference with a temperature drift of 4 ppm/°C (typical) and 10 ppm/°C (maximum).
- What is the package type of the DAC8562SDGSR?
The package type is VSSOP-10.
- What are the key applications of the DAC8562SDGSR?
The key applications include portable instrumentation, PLC analog output modules, closed-loop servo control, voltage-controlled oscillator tuning, data acquisition systems, and programmable gain and offset adjustment.
- How does the power-on reset function work on the DAC8562SDGSR?
The device powers up at zero scale and remains there until a valid code is written to the device.
- What is the significance of the LDAC and CLR functions in the DAC8562SDGSR?
The LDAC function allows for synchronous data updates, and the CLR function sets the DAC output to zero scale or mid-scale, depending on the device variant.
