TLC549C, TLC548C Datasheet - Texas Instruments

TLC549C 8-BIT ANALOG-TO-DIGITAL CONVERTERS

The TLC548 and TLC549 are CMOS analog-to-digital converter (ADC) integrated circuits built around an 8-bit switched-capacitor successive-approximation ADC. These devices are designed for serial interface with a microprocessor or peripheral through a 3-state data output and an analog input. The TLC54.

D Microprocessor Peripheral or Standalone Operation D 8-Bit Resolution A/D Converter D Differential Reference Input Voltages D Conversion Time . . . 17 µs Max D Total Access and Conversion Cycles Per Second TLC548 . . . up to 45 500 TLC549 . . . up to 40 000 D On-Chip Software-Controllable Sample-and-Hold Function D Total Unadjusted Error . . . ± 0.5 LSB Max D 4-MHz Typical Internal System Clock D Wide Supply Range . . . 3 V to 6 V D Low Power Consumption . . . 15 mW Max D Id.

TLC549C Features

* include versatile control logic, an on-chip sample-and-hold circuit that can operate automatically or under microprocessor control, and a high-speed converter with differential high-impedance reference voltage inputs that ease ratiometric conversion, scaling, and circuit isolation from logic and sup

TLC548C-etcTI.pdf