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TLC2552 Datasheet(PDF) 11 Page - Texas Instruments |
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TLC2552 Datasheet(HTML) 11 Page - Texas Instruments |
11 / 28 page TLC2551, TLC2552, TLC2555 5-V, LOW-POWER, 12-BIT, 175/360 KSPS, SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTOPOWER DOWN SLAS276D – MARCH 2000 – REVISED MAY 2003 11 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 ac specifications (fi = 20 kHz) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SINAD Signal-to-noise ratio + distortion 400 KSPS, VDD = VREF = 5 V 70 72 dB THD Total harmonic distortion 400 KSPS, VDD = VREF = 5 V –84 –80 dB ENOB Effective number of bits 400 KSPS, VDD = VREF = 5 V 11.8 bits SFDR Spurious free dynamic range 400 KSPS, VDD = VREF = 5 V –84 –80 dB Analog Input Full-power bandwidth, –3 dB 1 MHz Full-power bandwidth, –1 dB 500 kHz external reference specifications PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Reference input voltage VDD = 4.5 V to 5.5 V 2 VDD V Reference input impedance V5 5 V CS = 1, SCLK = 0 100 M Ω Reference input impedance VDD = 5.5 V CS = 0, SCLK = 20 MHz 20 25 k Ω Reference current VDD = VREF = 5.5 V 100 400 µA Reference input capacitance VV 5 5 V CS = 1, SCLK = 0 5 15 pF Reference input capacitance VDD = VREF = 5.5 V CS = 0, SCLK = 20 MHz 20 45 50 pF VREF Reference voltage VDD = 4.5 V to 5.5 V VDD V dc specification, VDD = VREF = 4.5 V to 5.5 V, SCLK frequency = 20 MHz (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT INL Integral linearity error (see Note 4) ±0.6 ±1 LSB DNL Differential linearity error See Note 3 ±0.5 ±1 LSB E Offset error (see Note 5) See Note 3 TLC2551/52 ±1.5 LSB EO Offset error (see Note 5) See Note 3 TLC2555 ±2.5 LSB E Gain error (see Note 5) See Note 3 TLC2551/52 ±2 LSB EG Gain error (see Note 5) See Note 3 TLC2555 ±5 LSB E Total unadjusted error (see Note 6) See Note 3 TLC2551/52 ±2 LSB Et Total unadjusted error (see Note 6) See Note 3 TLC2555 ±5 LSB NOTES: 3. Analog input voltages greater than that applied to VREF convert as all ones (111111111111). 4. Linear error is the maximum deviation from the best straight line through the A/D transfer characteristics. 5. Zero error is the difference between 000000000000 and the converted output for zero input voltage: full-scale error is the difference between 111111111111 and the converted output for full-scale input voltage. 6. Total unadjusted error comprises linearity, zero, and full-scale errors. |
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