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LTC2439-1IGN Datasheet(PDF) 3 Page - Linear Technology |
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LTC2439-1IGN Datasheet(HTML) 3 Page - Linear Technology |
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3 / 28 page  LTC2439-1 3 24391f PARAMETER CONDITIONS MIN TYP MAX UNITS Input Common Mode Rejection DC 2.5V ≤ REF+ ≤ VCC, REF– = GND, q 130 140 dB GND ≤ IN– = IN+ ≤ VCC (Note 5) Input Common Mode Rejection 2.5V ≤ REF+ ≤ VCC, REF– = GND, q 140 dB 49Hz to 61.2Hz GND ≤ IN– = IN+ ≤ VCC, (Note 5) Input Normal Mode Rejection (Note 5) q 87 dB 49Hz to 61.2Hz Reference Common Mode 2.5V ≤ REF+ ≤ VCC, GND ≤ REF– ≤ 2.5V, q 130 140 dB Rejection DC VREF = 2.5V, IN – = IN+ = GND (Note 5) Power Supply Rejection, DC REF+ = 2.5V, REF– = GND, IN– = IN+ = GND 120 dB Power Supply Rejection, REF+ = 2.5V, REF– = GND, IN– = IN+ = GND 120 dB Simultaneous 50Hz/60Hz ±2% The q denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Notes 3, 4) CO VERTER CHARACTERISTICS SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS IN+ Absolute/Common Mode IN+ Voltage q GND – 0.3 VCC + 0.3 V IN– Absolute/Common Mode IN– Voltage q GND – 0.3 VCC + 0.3 V VIN Input Differential Voltage Range q –VREF/2 VREF/2 V (IN+ – IN–) REF+ Absolute/Common Mode REF+ Voltage q 0.1 VCC V REF– Absolute/Common Mode REF– Voltage q GND VCC – 0.1 V VREF Reference Differential Voltage Range q 0.1 VCC V (REF+ – REF–) CS (IN+)IN+ Sampling Capacitance 18 pF CS (IN–)IN– Sampling Capacitance 18 pF CS (REF+)REF+ Sampling Capacitance 18 pF CS (REF –)REF– Sampling Capacitance 18 pF IDC_LEAK (IN +)IN+ DC Leakage Current CS = VCC = 5.5V, IN + = GND q –100 1 100 nA IDC_LEAK (IN –)IN– DC Leakage Current CS = VCC = 5.5V, IN – = 5V q –100 1 100 nA IDC_LEAK (REF+)REF+ DC Leakage Current CS = VCC = 5.5V, REF+ = 5V q –100 1 100 nA IDC_LEAK (REF–)REF– DC Leakage Current CS = VCC = 5.5V, REF– = GND q –100 1 100 nA Off Channel to On Channel Isolation DC 140 dB (RIN = 100Ω) 1Hz 140 dB fS = 15,3600Hz 140 dB tOPEN MUX Break-Before-Make Interval 2.7V ≤ VCC ≤ 5.5V 100 ns IS(OFF) Channel Off Leakage Current Channel at VCC and GND q –100 1 100 nA The q denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) A ALOG I PUT A D REFERE CE |
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