DAC53508集成电路（IC）的数模转换器（DAC）规格书PDF中文资料

DAC53508属于集成电路（IC）的数模转换器（DAC）。由德州仪器制造生产的DAC53508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。

1 Features

• ±1LSB DNL

• Wide operating range:

– Power supply: 1.8V to 5.5V

– Temperature range: –40°C to +125°C

• 3-wire serial peripheral interface (SPI)

– VIH = 2.4V for 2.7V ≤ VDD ≤ 5.5V

– VIH = (VDD – 0.3V ) for 1.8V ≤ VDD ≤ 2.7V

• LDAC pin for simultaneous output update

• Very low power: 0.1mA/channel at 1.8V

• Low-power start-up mode: Outputs powered down

with 10kΩ to AGND

• Tiny package: 3mm × 3mm, 16-pin WQFN

2 Applications

• Multifunction printer

• Display panel for TV

• OLED TV

• Virtual reality headset

• Currency counter

• Automatic teller machine (ATM)

3 Description

The 8-bit DAC43508, 10-bit DAC53508, and 12-bit

DAC63508 (DACx3508) are low-power, eight-channel,

voltage-output, digital-to-analog converters (DACs).

The DACx3508 are specified monotonic by design

across a wide power supply range from 1.8V to

5.5V. Using an external reference, the DACx3508

provides a full-scale output voltage range of 1.8V to

5.5V while consuming 0.1mA quiescent current per

channel. The DACx3508 also includes per channel,

user programmable, power down registers. These

registers facilitate the DAC output buffers to start in

a 10kΩ-AGND power-down state, and remain in this

state until a power-up command is issued to these

output buffers.

Low quiescent current, wide power-supply range,

octal channel, and a per-channel power-down option

make the DACx3508 an excellent choice for highdensity,

low-power, battery-operated systems.

The devices communicate through the 3-wire (writeonly)

serial peripheral interface (SPI). These devices

also have a load DAC (LDAC) and clear (CLR) inputs.