DAC7578SPW集成电路（IC）的数模转换器（DAC）规格书PDF中文资料

DAC7578SPW属于集成电路（IC）的数模转换器（DAC）。由德州仪器制造生产的DAC7578SPW数模转换器（DAC）数模转换器（DAC、D/A、D2A 或 D 转 A）可将数字信号转换为缓冲或无缓冲的模拟电压或电流。DAC 架构是否适合特定应用，要取决于分辨率和采样频率。DAC 通常用于音乐播放器，将数字数据流转换为模拟音频流。它们还用于电视和手机，将数字视频数据转换为模拟视频信号，再连接到屏幕驱动器，以显示单色或彩色图像。

1FEATURES

23• Relative Accuracy:

– DAC5578 (8 bit): 0.25LSB INL

– DAC6578 (10 bit): 0.5LSB INL

– DAC7578 (12 bit): 1LSB INL

• Glitch Energy: 0.15nV-s

• Power-On Reset to Zero Scale or Midscale

– Devices in the TSSOP Package Reset to

Zero Scale

– Devices in the QFN Package Reset to Zero

Scale or Midscale

• Ultra-Low Power Operation: 0.13mA/ch at 5V

• Wide Power-Supply Range: +2.7V to +5.5V

• 2-Wire Serial Interface ( I2C™ compatible)

• Temperature Range: –40°C to +125°C

APPLICATIONS

• Portable Instrumentation

• Closed-Loop Servo Control

• Process Control

• Data Acquisition Systems

DESCRIPTION

The DAC5578 (8 bit), DAC6578 (10 bit), and

DAC7578 (12 bit) are low-power, voltage-output, octal

channel, digital-to-analog converters (DACs). The

devices are monolithic, provide good linearity,and

minimize undesired code-to-code transient voltages

(glitch).

The devices use a versatile, 2-wire serial interface

that is I2C-compatible and operates at clock rates of

up to 3.4MHz. Multiple devices can share the same

bus.

The devices incorporate a power-on-reset (POR) circuit that ensures the DAC output powers up to

zero-scale or midscale until a valid code is written to

the device. These devices also contain a power-down

feature, accessed through the serial interface, that

reduces the current consumption of the devices to

typically 0.42μA at 5V. Power consumption is typically

2.32mW at 3V, reducing to 0.68μW in power-down

mode. The low power consumption and small

footprint make these devices ideal for portable,

battery-operated equipment.

The DAC5578, DAC6578, and DAC7578 are drop-in and functionally-compatible with the DAC7678. All

devices are available in a 4x4, QFN-24 package and

a TSSOP-16 package.