DAC43508集成電路（IC）的數(shù)模轉(zhuǎn)換器（DAC）規(guī)格書PDF中文資料

DAC43508屬于集成電路（IC）的數(shù)模轉(zhuǎn)換器（DAC）。由德州儀器制造生產(chǎn)的DAC43508數(shù)模轉(zhuǎn)換器（DAC）數(shù)模轉(zhuǎn)換器（DAC、D/A、D2A 或 D 轉(zhuǎn) A）可將數(shù)字信號(hào)轉(zhuǎn)換為緩沖或無緩沖的模擬電壓或電流。DAC 架構(gòu)是否適合特定應(yīng)用，要取決于分辨率和采樣頻率。DAC 通常用于音樂播放器，將數(shù)字?jǐn)?shù)據(jù)流轉(zhuǎn)換為模擬音頻流。它們還用于電視和手機(jī)，將數(shù)字視頻數(shù)據(jù)轉(zhuǎn)換為模擬視頻信號(hào)，再連接到屏幕驅(qū)動(dòng)器，以顯示單色或彩色圖像。

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.