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MAX1272 Datasheet(PDF) 5 Page - Maxim Integrated Products |
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MAX1272 Datasheet(HTML) 5 Page - Maxim Integrated Products |
5 / 20 page Fault-Protected, 12-Bit ADCs with Software-Selectable Input Range _______________________________________________________________________________________ 5 TIMING CHARACTERISTICS (VDD = 4.75V to 5.25V, unipolar/bipolar input range, external reference mode, VREF = 4.096V, CREF = 1.0µF, fSCLK = 1.4MHz, 50% duty cycle, CLOAD = 50pF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Figures 1 and 4) PARAMETERS SYMBOL CONDITIONS MIN TYP MAX UNITS DIN to SCLK Setup tDS 100 ns DIN to SCLK Hold tDH 0ns SCLK Fall to Output Data Valid tDO 20 250 ns CS Fall to Output Enable tDV 100 ns CS Rise to Output Disable tTR 100 ns CS to SCLK Rise Setup tCSS 100 ns CS to SCLK Rise Hold tCSH 0ns SCLK Pulse Width High tCH 200 ns SCLK Pulse Width Low tCL 200 ns Note 1: Accuracy specifications tested at VDD = 5V. Performance at power-supply tolerance limit is guaranteed by power-supply rejection test. Note 2: Offset error nulled. The ideal last-code transition is (FS - 1.5 LSB). Note 3: PSRR measured at full scale. Tested at ±10V (MAX1272) and ±4.096V (MAX1273) input ranges. Note 4: Acquisition and conversion times are dependent on the clock speed. Typical Operating Characteristics (Typical operating circuit, BIP = RNG = 1, VDD = 5V, external reference mode, VREF = 4.096V, CREF = 1.0µF, fSCLK = 1.4MHz, 50% duty cycle, 87ksps, TA = +25°C, unless otherwise noted.) CONVERTING SUPPLY CURRENT vs. SUPPLY VOLTAGE SUPPLY VOLTAGE (V) 5.20 5.15 5.05 5.10 4.85 4.90 4.95 5.00 4.80 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0 4.75 5.25 INTERNAL REFERENCE EXTERNAL REFERENCE VAIN = 0 CONVERTING SUPPLY CURRENT vs. TEMPERATURE TEMPERATURE ( °C) 60 35 -15 10 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0 -40 85 VAIN = 0 INTERNAL REFERENCE EXTERNAL REFERENCE STANDBY SUPPLY CURRENT vs. TEMPERATURE TEMPERATURE ( °C) 60 35 10 -15 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0 -40 85 VAIN = 0 INTERNAL REFERENCE EXTERNAL REFERENCE |
Similar Part No. - MAX1272 |
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Similar Description - MAX1272 |
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