TLC548CDG4

模数转换器 - ADC 8bit A/D w/Serial

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 frequency of the TLC549 is specified up to 1.1 MHz.

Microprocessor Peripheral or Standalone Operation

8-Bit Resolution A/D Converter

Differential Reference Input Voltages

Conversion Time...17 µs Max

Total Access and Conversion Cycles Per Second

  – TLC548...up to 45500

  – TLC549...up to 40000

On-Chip Software-Controllable Sample-and-Hold Function

Total Unadjusted Error...±0.5 LSB Max

4-MHz Typical Internal System Clock

Wide Supply Range...3 V to 6 V

Low Power Consumption...15 mW Max

Ideal for Cost-Effective, High-Performance Applications including Battery-Operated Portable Instrumentation

Pinout and Control Signals Compatible With the TLC540 and TLC545 8-Bit A/D Converters and with the TLC1540 10-Bit A/D Converter

CMOS Technology