Overview
The DAC8562SQDGSRQ1, produced by Texas Instruments, is a 16-bit, dual-channel, low-power, buffered voltage-output digital-to-analog converter (DAC). This device is part of the DACxx6x-Q1 family, which includes 12-bit, 14-bit, and 16-bit versions. It is designed for automotive applications and features a 2.5-V, 4-ppm/°C internal reference, ensuring high accuracy and stability over a wide temperature range.
The DAC8562SQDGSRQ1 is monotonic, providing excellent linearity and minimizing undesired code-to-code transient voltages (glitch). It operates with a versatile three-wire serial interface compatible with standard SPI™, QSPI™, Microwire, and digital signal processor (DSP) interfaces, with clock rates up to 50 MHz.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 16 | Bits |
| Relative Accuracy | ±4 to ±12 | LSB |
| Differential Nonlinearity | ±0.2 to ±1 | LSB |
| Internal Reference Voltage | 2.5 V | V |
| Internal Reference Temperature Drift | 4 ppm/°C (typ), 10 ppm/°C (max) | ppm/°C |
| Reference Current Capability | Up to 20 mA | mA |
| Power Supply Range | 2.7 V to 5.5 V | V |
| Power Consumption (Power-Down) | Typically 550 nA at 5 V | nA |
| Operating Temperature Range | –40°C to 125°C | °C |
| Package Type | 10-pin VSSOP-10 (DGS) |
Key Features
- Monotonic operation ensuring excellent linearity and minimizing glitch.
- Internal 2.5-V reference with ±5 mV initial accuracy and 4 ppm/°C temperature drift.
- Three-wire serial interface compatible with SPI™, QSPI™, Microwire, and DSP interfaces, operating up to 50 MHz.
- Power-on-reset circuit ensuring DAC output powers up at zero scale until a valid code is written.
- 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 controlling the DAC register.
- Small footprint in a 10-pin VSSOP-10 (DGS) package.
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 DAC8562SQDGSRQ1?
The DAC8562SQDGSRQ1 has a resolution of 16 bits.
- What is the internal reference voltage of the DAC8562SQDGSRQ1?
The internal reference voltage is 2.5 V with a temperature drift of 4 ppm/°C (typ) and 10 ppm/°C (max).
- What is the power consumption in power-down mode?
The power consumption in power-down mode is typically 550 nA at 5 V.
- What is the operating temperature range of the DAC8562SQDGSRQ1?
The operating temperature range is –40°C to 125°C.
- What type of interface does the DAC8562SQDGSRQ1 use?
The device uses a three-wire serial interface compatible with SPI™, QSPI™, Microwire, and DSP interfaces, operating up to 50 MHz.
- What is the package type of the DAC8562SQDGSRQ1?
The device is available in a 10-pin VSSOP-10 (DGS) package.
- Does the DAC8562SQDGSRQ1 have a power-on-reset feature?
- What are some common applications of the DAC8562SQDGSRQ1?
- Can the DAC8562SQDGSRQ1 be used in automotive applications?
- What is the maximum current capability of the internal reference?
The internal reference can source or sink up to 20 mA.
