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TLC546IFN Datasheet(PDF) 7 Page - Texas Instruments |
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TLC546IFN Datasheet(HTML) 7 Page - Texas Instruments |
7 / 13 page TLC545C, TLC545I, TLC546C, TLC546I 8-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL AND 19 INPUTS SLAS066B – DECEMBER 1985 – REVISED OCTOBER 1996 7 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 operating characteristics over recommended operating free-air temperature range, VCC = Vref+ = 4.75 V to 5.5 V, fclock(I/O) = 2.048 MHz for TLC545 or 1.1 MHz for TLC546, fclock(SYS) = 4 MHz for TLC545 or 2.1 MHz for TLC546 PARAMETER TEST CONDITIONS TLC545 TLC546 UNIT PARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX UNIT EL Linearity error See Note 5 ±0.5 ±0.5 LSB EZS Zero-scale error See Note 6 ±0.5 ±0.5 LSB EFS Full-scale error See Note 6 ±0.5 ±0.5 LSB Total unadjusted error See Note 7 ±0.5 ±0.5 LSB Self-test output code INPUT A19 address = 10011 (see Note 8) 01111101 (125) 10000011 (131) 01111101 (125) 10000011 (131) tconv Conversion time See Operating Sequence 9 17 µs Total access and conversion time See Operating Sequence 13 25 µs tacq Channel acquisition time (sample cycle) See Operating Sequence 3 3 I/O clock cycles tv Time output data remains valid after I/O CLOCK ↓ 10 10 ns td Delay time, I/O CLOCK to DATA OUT valid 300 400 ns ten Output enable time See Parameter 150 150 ns tdis Output disable time See Parameter Measurement Information 150 150 ns tr(bus) Data bus rise time 300 300 ns tf(bus) Data bus fall time 300 300 ns NOTES: 5. Linearity error is the maximum deviation from the best straight line through the A/D transfer characteristics. 6. Zero-scale error is the difference between 00000000 and the converted output for zero input voltage; full-scale error is the difference between 11111111 and the converted output for full-scale input voltage. 7. Total unadjusted error is the sum of linearity, zero-scale, and full-scale errors. 8. Both the input address and the output codes are expressed in positive logic. The INPUT A19 analog input signal is internally generated and is used for test purposes. |
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