TLV2543CDW屬于集成電路（IC）的模數(shù)轉(zhuǎn)換器（ADC）。由美國德州儀器公司制造生產(chǎn)的TLV2543CDW模數(shù)轉(zhuǎn)換器（ADC）模數(shù)轉(zhuǎn)換器（ADC、A/D 或 A 轉(zhuǎn) D）對模擬信號進(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。一般來說，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。

12-Bit-Resolution A/D Converter

10-ms Conversion Time Over Operating

Temperature Range

11 Analog Input Channels

3 Built-In Self-Test Modes

Inherent Sample and Hold Function

Linearity Error . . . ±1 LSB Max

On-Chip System Clock

End-of-Conversion (EOC) Output

Unipolar or Bipolar Output Operation

(Signed Binary With Respect to Half of the

Applied Referenced Voltage)

Programmable MSB or LSB First

Programmable Power Down

Programmable Output Data Length

CMOS Technology

description

The TLV2543C and TLV2543I are 12-bit, switched-capacitor, successive-approximation, analog-to-digital

converters (ADCs). Each device has three control inputs [chip select (CS), the input-output clock (I/O CLOCK),

and the address input (DATA INPUT)] and is designed for communication with the serial port of a host processor

or peripheral through a serial 3-state output. The device allows high-speed data transfers from the host.

In addition to the high-speed converter and versatile control capability, the device has an on-chip 14-channel

multiplexer that can select any one of 11 inputs or any one of three internal self-test voltages. The

sample-and-hold function is automatic. At the end of conversion, the end-of-conversion (EOC) output goes high

to indicate that conversion is complete. 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 low-error conversion over the full operating

temperature range.

The TLV2543 is available in the DW, DB, and N packages. The TLV2543C is characterized for operation from

0°C to 70°C, and the TLV2543I is characterized for operation from –40°C to 85°C.