TLC1543 概述

The TLC1543 are CMOS 10-bit switched-capacitor successive-approximation analog-to-digital converters. The TLC1543 have three inputs and a 3-state output [chip select (CS), input-output clock (I/O CLOCK), address input (ADDRESS), and data output (DATA OUT)] that provide a direct 4-wire interface to the serial port of a host processor. The TLC1543 allow high-speed data transfers from the host.

In addition to a high-speed A/D converter and versatile control capability, the TLC1543 have an on-chip 14-channel multiplexer that can select any one of 11 analog inputs or any one of three internal self-test voltages. The sample-and-hold function is automatic. At the end of A/D conversion, the end-of-conversion (EOC) output goes high to indicate that conversion is complete. The converter incorporated in the TLC1543 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 free-air temperature range.

TLC1543 特性

• 10-Bit Resolution A/D Converter
• 11 Analog Input Channels
• Three Built-In Self-Test Modes
• Inherent Sample-and-Hold Function
• Total Unadjusted Error: ±1 LSB Max
• On-Chip System Clock
• End-of-Conversion (EOC) Output
• Terminal Compatible With TLC542
• CMOS Technology