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SP8538KS Datasheet(PDF) 2 Page - Sipex Corporation |
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SP8538KS Datasheet(HTML) 2 Page - Sipex Corporation |
2 / 12 page SP8538DS/01 SP8538 Micropower Sampling 12-Bit A/D Converter © Copyright 1999 Sipex Corporation 2 ABSOLUTE MAXIMUM RATINGS These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability. (TA=+25˚C unless otherwise noted) ..................................................... VCC to GND ................................................................................. 7.0V Vin to GND .............................................................. -0.3 to VCC +0.3V Digital input to GND ................................................ -0.3 to VCC +0.3V Digital output to GND .............................................. -0.3 to VCC +0.3V Operating Temperature Range Commercial (J, K Version) ........................................... 0˚C to 70˚C Industrial (A, B Version) .......................................... -40˚C to +85˚C Lead Temperature (Solder 10Sec) ............................................ +300˚C Storage Temperature .................................................. -65˚C to +150˚C Power Dissipation to 70˚C ........................................................ 500mW SPECIFICATIONS Unless otherwise noted the following specifications apply for VCC=5V or 3.3V with limits applicable for Tmin to Tmax. Typical applies for Ta=25˚C. VCC=5.0V VCC=3.3V PARAMETERS MIN. TYP. MAX. MIN. TYP. MAX. UNITS CONDITIONS DC ACCURACY Resolution 12 12 Bits Integral Linearity J,A +0.6 +2.0 +0.6 +2.0 LSB K,B +0.6 +1.0 +0.6 +1.0 LSB Differential Linearity Error J,A +0.75 +2.0 +0.75 +2.0 LSB K,B +0.75 +1.0 +0.75 +1.0 LSB No Missing Codes Gain Error J,A +2.0 +10 +2.0 +10 LSB K,B +2.0 +8 +2.0 +8 LSB Offset Error J,A +1.5 +5 +3.0 +8 LSB K,B +1.5 +3 +3.0 +5 LSB ANALOG INPUT Input Signal FS Range 0 V CC 0V CC Input Impedance On Channel 20 20 pF In Parallel with 100m Ω 100 100 M Ω Off Channel 3 3 pF In Parallel with 100m Ω 100 100 M Ω Input Bias Current .001 1 .001 1 µA Analog Input Range -.05 V CC+.05 -.05 V CC+.05 Volts MULTIPLEXER Crosstalk (f D = Nyquist) -90 -90 dB Off to On Channel Feedthrough (f D = Nyquist) -90 -90 dB Off to On Channel f D= Disturbance CONVERSION SPEED Sample Time 1.5 1.5 clock See Timing Diagrams cycles Conversion Time 12 12 clock See Timing Diagrams cycles Complete Cycle 25 5.85 kHz See Timing Diagrams Clock Period 2.25 10.0 µS See Timing Diagrams Clock High Time 1.0 4.5 µS See Timing Diagrams Clock Low Time 1.0 4.5 µS See Timing Diagrams |
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