TLC549C

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 Ideal for Cost-Effective, High-Performance Applications including Battery-Operated Portable Instrumentation D Pinout and Control Signals Compatible With the TLC540 and TLC545 8-Bit A/D Converters and with the TLC1540 10-Bit A/D Converter D CMOS Technology TLC548C, TLC548I, TLC549C, TLC549I 8-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL SLAS067C – NOVEMBER 1983 – REVISED SEPTEMBER 1996 D OR P PACKAGE (TOP VIEW) REF + ANALOG IN REF – GND 1 2 3 4 8 VCC 7 I/O CLOCK 6 DATA OUT 5 CS description 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 TLC548 and TLC549 use only the input/output clock (I/O CLOCK) input along with the chip select (CS) input for data control. The maximum I/O CLOCK input frequency of the TLC548 is 2.048 MHz, and the I/O CLOCK input fr...