Datasheet LTC2435, LTC2435-1 (Analog Devices) - 3

LTC2435/LTC2435-1
c onverTer characTerisTics The
l
denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Notes 3, 4) PARAMETER CONDITIONS MIN TYP MAX UNITS
Input Common Mode Rejection DC 2.5V ≤ REF+ ≤ VCC, REF– = GND, ● 110 120 dB GND ≤ IN– = IN+ ≤ VCC (Note 5) Input Common Mode Rejection 2.5V ≤ REF+ ≤ VCC, REF– = GND, ● 140 dB 60Hz ±2% (LTC2435) GND ≤ IN– = IN+ ≤ VCC, (Notes 5, 7) Input Common Mode Rejection 2.5V ≤ REF+ ≤ VCC, REF– = GND, ● 140 dB 50Hz ±2% (LTC2435) GND ≤ IN– = IN+ ≤ VCC, (Notes 5, 8) Input Normal Mode Rejection (Notes 5, 7) ● 110 120 dB 60Hz ±2% (LTC2435) Input Normal Mode Rejection (Notes 5, 8) ● 110 120 dB 50Hz ±2% (LTC2435) Input Common Mode Rejection 2.5V ≤ REF+ ≤ VCC, REF– = GND, ● 120 dB 49Hz to 61.2Hz (LTC2435-1) GND ≤ IN– = IN+ ≤ VCC, (Notes 5, 7) Input Normal Mode Rejection FO = GND (Note 5) ● 87 dB 49Hz to 61.2Hz (LTC2435-1) Input Normal Mode Rejection External Oscillator (Note 5) ● 87 dB External Clock fEOSC/2560 ±14% Input Normal Mode Rejection External Oscillator (Note 5) ● 110 120 dB External Clock fEOSC/2560 ±4% Reference Common Mode 2.5V ≤ REF+ ≤ VCC, GND ≤ REF– ≤ 2.5V, ● 130 140 dB Rejection DC VREF = 2.5V, IN– = IN+ = GND (Note 5) Power Supply Rejection, DC REF+ = VCC, REF– = GND, IN– = IN+ = GND 100 dB Power Supply Rejection, 60Hz ±2% REF+ = 2.5V, REF– = GND, IN– = IN+ = GND, (Note 7) 120 dB Power Supply Rejection, 50Hz ±2% REF+ = 2.5V, REF– = GND, IN– = IN+ = GND, (Note 8) 120 dB
analog inpuT anD reFerence The
●
denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
IN+ Absolute/Common Mode IN+ Voltage ● GND – 0.3V VCC + 0.3V V IN– Absolute/Common Mode IN– Voltage ● GND – 0.3V VCC + 0.3V V VIN Input Differential Voltage Range ● –VREF/2 VREF/2 V (IN+ – IN–) REF+ Absolute/Common Mode REF+ Voltage ● 0.1 VCC V REF– Absolute/Common Mode REF– Voltage ● GND VCC – 0.1V V VREF Reference Differential Voltage Range ● 0.1 VCC V (REF+ – REF–) CS (IN+) IN+ Sampling Capacitance 1.5 pF CS (IN–) IN– Sampling Capacitance 1.5 pF CS (REF+) REF+ Sampling Capacitance 1.5 pF CS (REF–) REF– Sampling Capacitance 1.5 pF IDC_LEAK (IN+) IN+ DC Leakage Current CS = VCC, IN+ = GND ● –10 1 10 nA IDC_LEAK (IN–) IN– DC Leakage Current CS = VCC, IN– = VCC ● –10 1 10 nA IDC_LEAK (REF+) REF+ DC Leakage Current CS = VCC, REF+ = VCC ● –10 1 10 nA IDC_LEAK (REF–) REF– DC Leakage Current CS = VCC, REF– = GND ● –10 1 10 nA 24351fc For more information www.linear.com/LTC2435 3 Document Outline Features Description Applications Typical Applications Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Converter Characteristics Analog Input And Reference Digital Inputs And Digital Outputs Power Requirements Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Test Circuits Applications Information Package Description Revision History Typical Application Related Parts