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TLC542CDWG4 Datasheet(PDF) 1 Page - Texas Instruments |
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TLC542CDWG4 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 12 page TLC542C, TLC542I 8-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL AND 11 INPUTS SLAS075C – FEBRUARY 1989 – REVISED JUNE 2001 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D 8-Bit Resolution A/D Converter D Microprocessor Peripheral or Stand-Alone Operation D On-Chip 12-Channel Analog Multiplexer D Built-In Self-Test Mode D Software-Controllable Sample and Hold D Total Unadjusted Error ... ±0.5 LSB Max D Direct Replacement for Motorola MC145041 D Onboard System Clock D End-of-Conversion (EOC) Output D Pinout and Control Signals Compatible With the TLC1542/3 10-Bit A/D Converters D CMOS Technology PARAMETER VALUE Channel Acquisition/Sample Time 16 µs Conversion Time (Max) 20 µs Samples per Second (Max) 25 × 103 Power Dissipation (Max) 10 mW description The TLC542 is a CMOS converter built around an 8-bit switched-capacitor successive-approximation analog-to-digital converter. The device is designed for serial interface to a microprocessor or peripheral via a 3-state output with three inputs [including I/O CLOCK, CS (chip select), and ADDRESS INPUT]. The TLC542 allows high-speed data transfers and sample rates of up to 40,000 samples per second. In addition to the high-speed converter and versatile control logic, an on-chip 12-channel analog multiplexer can sample any one of 11 inputs or an internal self-test voltage, and the sample and hold is started under microprocessor control. At the end of conversion, the end-of- conversion (EOC) output pin goes high to indicate that conversion is complete. The converter incorporated in the TLC542 features differential high-impedance reference inputs that facilitate ratiometric conversion, scaling, and isolation of analog circuitry from logic and supply noises. A switched- capacitor design allows low-error ( ±0.5 LSB) conversion in 20 µs over the full operating temperature range. The TLC542C is characterized for operation from 0 °C to 70°C and the TLC542I is characterized for operation from – 40 °C to 85°C. AVAILABLE OPTIONS PACKAGE TA CHIP CARRIER (FN) PLASTIC DIP (N) SMALL OUTLINE (DW) 0 °C to 70°C — TLC542CN TLC542CDW –40 °C to 85°C TLC542IFN TLC542IN TLC542IDW Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. Copyright 2001, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 INPUT A0 INPUT A1 INPUT A2 INPUT A3 INPUT A4 INPUT A5 INPUT A6 INPUT A7 INPUT A8 GND VCC EOC I/O CLOCK ADDRESS INPUT DATA OUT CS REF+ REF– INPUT A10 INPUT A9 DW OR N PACKAGE (TOP VIEW) 32 1 20 19 910 11 12 13 4 5 6 7 8 18 17 16 15 14 I/O CLOCK ADDRESS INPU DATA OUT CS REF+ INPUT A3 INPUT A4 INPUT A5 INPUT A6 INPUT A7 FN PACKAGE (TOP VIEW) |
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