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ZADCS1282 Datasheet(PDF) 8 Page - Zentrum Mikroelektronik Dresden AG |
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ZADCS1282 Datasheet(HTML) 8 Page - Zentrum Mikroelektronik Dresden AG |
8 / 21 page Datasheet ZADCS1282/1242/1222 Family Copyright © 2008, ZMD AG, Rev. 1.1 All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. The Information furnished in this publication is preliminary and subject to changes without notice. 8/21 1.5.2 Specific Parameters of versions with Internal Voltage Reference (ZADCS12x2V) (VDD = +2.7V to + 5.25V; fSCLK = 3.2MHz (50% duty cycle); 16 clocks/conversion cycle (200 ksps); qOP = qOPmin … qOPmax) Parameter Symbol Conditions Min Typ Max Unit Internal Reference at VREF VREF Output Voltage TA = + 25°C 2.480 2.500 2.520 V VREF Short-Circuit Current 30 mA VREF Temperature Coefficient ± 20 ± 30 ppm/°C Load Regulation 0 to 0.2mA output load 0.35 mV Capacitive Bypass at VREF 4.7 µF Capacitive Bypass at REFADJ 0.047 µF REFADJ Adjustment Range ± 1.5 % External Reference at VREF (internal buffer disabled by V(REFADJ) = VDD) VREF Input Voltage Range 1.0 VDD + 50mV V VREF Input Current VREF = 2.5V 180 215 µA VREF Input Resistance 11.5 14 k W Shutdown VREF Input Current 0.1 µA REFADJ Buffer Disable Threshold VDD- 0.5 V External Reference at VREF_ADJ Reference Buffer Gain 2.00 VREF_ADJ Input Current ±80 µA Full Power Down VREFADJ Input Current Full Power-Down mode 0.1 µA Power Requirements Positive Supply Voltage VDD 2.7 5.25 V Operating Mode ext. VREF 0.85 1.0 mA Operating Mode int. VREF 1.3 1.4 mA Fast Power-Down 250 300 Positive Supply Current ZADCS1282VI ZADCS1242VI ZADCS1222VI IDD VDD=3.6V Full Power-Down 0.5 4.0 µA Operating Mode ext. VREF 1.00 1.3 mA Operating Mode int. VREF 1.40 1.6 mA Fast Power-Down 250 300 Positive Supply Current ZADCS1282VI ZADCS1242VI ZADCS1222VI IDD VDD=5.2V Full Power-Down 0.5 4.0 µA Operating Mode ext. VREF 0.85 1.1 1) mA Operating Mode int. VREF 1.3 1.5 1) mA Fast Power-Down 250 350 1) Positive Supply Current ZADCS1282VQ ZADCS1242VQ ZADCS1222VQ IDD VDD=3.6V Full Power-Down 0.5 15 1) µA Operating Mode ext. VREF 1.00 1.4 1) mA Operating Mode int. VREF 1.40 1.7 1) mA Fast Power-Down 250 350 1) Positive Supply Current ZADCS1282VQ ZADCS1242VQ ZADCS1222VQ IDD VDD=5.2V Full Power-Down 0.5 20 1) µA 1) relaxed maximum limits are due to wider temperature range of automotive qualified version ZADCS12x2VQ |
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