TLC541I

Product Summary

The TLC541I is a CMOS A/D converter. It is built around an 8-bit switchedcapacitor successive-approximation A/D converters. The TLC541I is designed for serial interface to a microprocessor or peripheral via a 3-state output with up to four control inputs, including independent SYSTEM CLOCK, I/O CLOCK, chip select (CS), and ADDRESS INPUT. A 4-MHz system clock for the TLC541I with a design that includes simultaneous read/write operation allow high-speed data transfers and sample rates of up to 75,180samples per second for the TLC540 and 40,000 samples per second for the TLC541I. In addition to the high-speed converter and versatile control logic, there is an on-chip 12-channel analog multiplexer that can be used to sample any one of 11 inputs or an internal self-test voltage, and a sample-and-hold that can operate automatically or under microprocessor control. Detailed information on interfacing to most popular microprocessors is readily available from the factory.

Parametrics

TLC541I absolute maximum ratings: (1)Supply voltage: 6.5 V; (2)Input voltage range: – 0.3 V to VCC +0.3 V; (3)Output voltage range: – 0.3 V to VCC +0.3 V; (4)Peak input current range (any input): ±10 mA; (5)Peak total input current (all inputs): ±30 mA; (6)Operating free-air temperature range: –40℃ to 85℃; (7)Storage temperature range: –65℃ to 150℃; (8)Case temperature for 10 seconds: 260℃; (9)Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: 260℃.

Features

TLC541I features: (1)8-Bit Resolution A/D Converter; (2)Microprocessor Peripheral or Stand-Alone Operation; (3)On-Chip 12-Channel Analog Multiplexer; (4)Built-in Self-Test Mode; (5)Software-Controllable Sample and Hold; (6)Total Unadjusted Error : ±0.5 LSB Max; (7)TLC541 is Direct Replacement for Motorola MC145040 and National Semiconductor ADC0811. TLC540 is Capable of Higher Speed; (8)Pinout and Control Signals Compatible with TLC1540 Family of 10-Bit A/D Converters; (9)CMOS Technology.

Diagrams