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TLC541MN Datasheet(PDF) 6 Page - Texas Instruments |
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TLC541MN Datasheet(HTML) 6 Page - Texas Instruments |
6 / 19 page TLC540I, TLC541I 8-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL AND 11 INPUTS SLAS065B – OCTOBER 1983 – REVISED JUNE 2001 6 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 TLC540 or 1.1 MHz for TLC541, fclock(SYS) = 4 MHz for TLC540 or 2.1 MHz for TLC541 PARAMETER TEST CONDITIONS TLC540 TLC541 UNIT PARAMETER TEST CONDITIONS MIN MAX MIN MAX UNIT EL Linearity error See Note 5 ±0.5 ±0.5 LSB EZS Zero–scale error See Notes 2 and 6 ±0.5 ±0.5 LSB EFS Full-scale error See Notes 2 and 6 ±0.5 ±0.5 LSB Total unadjusted error See Note 7 ±0.5 ±0.5 LSB Self-test output code Input A11 address = 1011, (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 13.3 25 µs ta Channel acquisition time (sample cycle) See operating sequence 4 4 I/O clock cylces tv Time output data remains valid after I/O CLOCK ↓ 10 10 ns td Delay time, I/O CLOCK ↓ to data output 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: 2. Analog input voltages greater than that applied to REF+ convert to all 1s (11111111) while input voltages less than that applied to REF– convert to all 0s (00000000). For proper operation, REF+ voltage must be at least 1 V higher than REF– voltage. Also, the total unadjusted error may increase as this differential reference voltage falls below 4.75 V. 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. |
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