TI DAC856x双路16位低功耗电压输出DAC解决方案

TI公司的DAC856x, DAC816x和DAC756x系列分别是低功耗电压输出双路16位,14位和12位数模转换器(DAC),集成了2.5-V,4-ppm/°C基准电压,满刻度输出电压范围2.5V或5V,主要用于手提仪表,双极输出,PLC模拟输出模块,闭环伺服控制,压控振荡器, 数据采集系统和可编增益和失调调整.本文介绍了DAC856x主要特性, 方框图, 应用电路以及DAC7562EVM评估板主要特性,电路图和材料清单.

The DAC856x, DAC816x, and DAC756x are low-power, voltage-output, dual-channel, 16-, 14-, and 12-bit digital-to-analog converters (DACs), respectively. These devices include a 2.5-V, 4-ppm/℃ internal reference, giving a full-scale output voltage range of 2.5 V or 5 V. The internal reference has an initial accuracy of ±5 mV and can source or sink up to 20 mA at the VREFIN/VREFOUT pin.

These devices are monotonic, providing excellent linearity and minimizing undesired code-to-code transient voltages (glitch). They use a versatile three-wire serial interface that operates at clock rates up to 50 MHz. The interface is compatible with standard SPI, QSPI, Microwire, and digital signal processor (DSP) interfaces.

DAC856x主要特性:

Relative Accuracy:

DAC856x (16-Bit): 4 LSB INL

DAC816x (14-Bit): 1 LSB INL

DAC756x (12-Bit): 0.3 LSB INL

Glitch Energy: 0.1 nV-s
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