DAC8822QBDBT屬于集成電路（IC）的數(shù)模轉(zhuǎn)換器（DAC）。由美國(guó)德州儀器公司制造生產(chǎn)的DAC8822QBDBT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(wú)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。

FEATURES

±0.5LSB DNL

±1LSB INL

Low Noise: 12nV/?Hz

Low Power Operation:

I DD = 1mA per Channel at 2.7V

2mA Full-Scale Current, with VREF = 10V

Settling Time: 0.5ms

16-Bit Monotonic

4-Quadrant Multiplying Reference Inputs

Reference Bandwidth: 10MHz

Reference Input: ±18V

Reference Dynamics: –105 THD

Midscale or Zero Scale Reset

Analog Power Supply: +2.7V to +5.5V

TSSOP-38 Package

Industry-Standard Pin Configuration

Pin-Compatible with the 14-Bit DAC8805

Temperature Range: –40°C to +125°C

APPLICATIONS

Automatic Test Equipment

Instrumentation

Digitally Controlled Calibration

Industrial Control PLCs

DESCRIPTION

The DAC8822 dual, multiplying digital-to-analog

converter (DAC) is designed to operate from a single

2.7V to 5.5V supply.

The applied external reference input voltage VREF

determines the full-scale output current. An internal

feedback resistor (RFB) provides temperature

tracking for the full-scale output when combined with

an external, current-to-voltage (I/V) precision

amplifier.

A RSTSEL pin allows system reset assertion (RS) to

force all registers to zero code when RSTSEL = '0',

or to midscale code when RSTSEL = '1'. Additionally,

an internal power-on reset forces all registers to zero

or midscale code at power-up, depending on the

state of the RSTSEL pin.

A parallel interface offers high-speed

communications. The DAC8822 is packaged in a

space-saving TSSOP-38 package and has an

industry-standard pinout. The device is specified

from –40°C to +125°C.

For a 14-bit, pin-compatible version, see the

DAC8805.