TLV1549I屬于集成電路（IC）的模數(shù)轉(zhuǎn)換器（ADC）。由美國(guó)德州儀器公司制造生產(chǎn)的TLV1549I模數(shù)轉(zhuǎn)換器（ADC）模數(shù)轉(zhuǎn)換器（ADC、A/D 或 A 轉(zhuǎn) D）對(duì)模擬信號(hào)進(jìn)行采樣，例如由麥克風(fēng)采集的聲音或傳感器的輸出，然后將其轉(zhuǎn)換為數(shù)字信號(hào)。一般來(lái)說(shuō)，數(shù)字輸出是二進(jìn)制補(bǔ)碼二進(jìn)制數(shù)，與輸入成比例。輸入類(lèi)型可能是差分、偽差分或單端輸入。模數(shù)轉(zhuǎn)換器可按照位數(shù)、采樣率、輸入數(shù)、接口、轉(zhuǎn)換器數(shù)和架構(gòu)（例如自適應(yīng)增量、雙斜率、折疊、流水線、SAR、三角積分、兩步式）進(jìn)行選擇。

3.3-V Supply Operation

10-Bit-Resolution Analog-to-Digital

Converter (ADC)

Inherent Sample and Hold Function

Total Unadjusted Error . . . ±1 LSB Max

On-Chip System Clock

Terminal Compatible With TLC1549 and

TLC1549x

Application Report Available?

CMOS Technology

description

The TLV1549C, TLV1549I, and TLV1549M are

10-bit, switched-capacitor, successiveapproximation,

analog-to-digital converters. The

devices have two digital inputs and a 3-state

output [chip select (CS), input-output clock (I/O

CLOCK), and data output (DATA OUT)] that

provide a three-wire interface to the serial port of

a host processor.

The sample-and-hold function is automatic. The

converter incorporated in the device features

differential high-impedance reference inputs that

facilitate ratiometric conversion, scaling, and

isolation of analog circuitry from logic and supply

noise. A switched-capacitor design allows lowerror

conversion over the full operating free-air

temperature range.

The TLV1549C is characterized for operation from 0°C to 70°C. The TLV1549I is characterized for operation

from –40°C to 85°C. The TLV1549M is characterized for operation over the full military temperature range of

–55°C to 125°C.