Datasheet LTC2480 (Analog Devices) - 4

LTC2480
CONVERTER CHARACTERISTICS The
l
denotes the 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 ≤ VREF ≤ VCC, GND ≤ IN– = IN+ ≤ VCC (Note 5) l 140 dB Input Common Mode Rejection 2.5V ≤ VREF ≤ VCC, GND ≤ IN– = IN+ ≤ VCC (Note 5) l 140 dB 50Hz ±2% Input Common Mode Rejection 2.5V ≤ VREF ≤ VCC, GND ≤ IN– = IN+ ≤ VCC (Note 5) l 140 dB 60Hz ±2% Input Normal Mode Rejection 2.5V ≤ VREF ≤ VCC, GND ≤ IN– = IN+ ≤ VCC (Notes 5, 7) l 110 120 dB 50Hz ±2% 2.5V ≤ VREF ≤ VCC, GND ≤ IN– = IN+ ≤ VCC (Notes 5, 7) (H-Grade) l 104 dB Input Normal Mode Rejection 2.5V ≤ VREF ≤ VCC, GND ≤ IN– = IN+ ≤ VCC (Notes 5, 8) l 110 120 dB 60Hz ±2% 2.5V ≤ VREF ≤ VCC, GND ≤ IN– = IN+ ≤ VCC (Notes 5, 8) (H-Grade) l 104 dB Input Normal Mode Rejection 2.5V ≤ VREF ≤ VCC, GND ≤ IN– = IN+ ≤ VCC (Notes 5, 9) l 87 dB 50Hz/60Hz ±2% Reference Common Mode 2.5V ≤ VREF ≤ VCC, GND ≤ IN– = IN+ ≤ VCC (Note 5) l 120 140 dB Rejection DC Power Supply Rejection DC VREF = 2.5V, IN– = IN+ = GND 120 dB Power Supply Rejection, 50Hz ±2% VREF = 2.5V, IN– = IN+ = GND (Notes 7, 9) 120 dB Power Supply Rejection, 60Hz ±2% VREF = 2.5V, IN– = IN+ = GND (Notes 8, 9) 120 dB
ANALOG INPUT AND REFERENCE The
l
denotes the 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 FS Full-Scale of the Differential Input (IN+ – IN–) l 0.5VREF/GAIN V LSB Least Significant Bit of the Output Code l FS/216 VIN Input Differential Voltage Range (IN+ – IN–) l –FS +FS V VREF Reference Voltage Range l 0.1 VCC V CS (IN+) IN+ Sampling Capacitance 11 pF CS (IN–) IN– Sampling Capacitance 11 pF CS (VREF) VREF Sampling Capacitance 11 pF IDC_LEAK (IN+) IN+ DC Leakage Current Sleep Mode, IN+ = GND l –10 1 10 nA IDC_LEAK (IN–) IN– DC Leakage Current Sleep Mode, IN– = GND l –10 1 10 nA IDC_LEAK (VREF) VREF DC Leakage Current Sleep Mode, VREF = VCC l –100 1 100 nA
ANALOG INPUTS AND DIGITAL OUTPUTS The
l
denotes the 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
VIH High Level Input Voltage CS, fO, SDI 2.7V ≤ VCC ≤ 5.5V (Note 16) l VCC – 0.5 V VIL Low Level Input Voltage CS, fO, SDI 2.7V ≤ VCC ≤ 5.5V l 0.5 V VIH High Level Input Voltage SCK 2.7V ≤ VCC ≤ 5.5V (Note 10) l VCC – 0.5 V VIL Low Level Input Voltage SCK 2.7V ≤ VCC ≤ 5.5V (Note 10) l 0.5 V IIN Digital Input Current CS, fO, SDI 0V ≤ VIN ≤ VCC l –10 10 µA 2480fe 4 For more information www.linear.com/LTC2480 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics (Normal Speed) Electrical Characteristics (2X Speed) Converter Characteristics Analog Input and Reference Analog Inputs and Digital Outputs Power Requirements Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Test Circuits Timing Diagrams Applications Information Package Description Revision History Typical Application Related Parts