Datasheet LTC2983 (Analog Devices) - 3
| Manufacturer | Analog Devices |
| Description | Multi-Sensor High Accuracy Digital Temperature Measurement System |
| Pages / Page | 72 / 3 — ABSOLUTE MAXIMUM RATINGS. PIN CONFIGURATION. (Notes 1, 2). ORDER … |
| File Format / Size | PDF / 790 Kb |
| Document Language | English |
ABSOLUTE MAXIMUM RATINGS. PIN CONFIGURATION. (Notes 1, 2). ORDER INFORMATION LEAD FREE FINISH. TRAY. PART MARKING*
Model Line for this Datasheet
Text Version of Document
LTC2983
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Notes 1, 2)
Supply Voltage (VDD) ... –0.3V to 6V TOP VIEW Analog Input Pins (CH1 to CH20, COM) ... –0.3V to (VDD + 0.3V) GND V REF_BYP NC GND V DD GND V DD GND V DD GND V DD GND Input Current (CH1 to CH20, COM) .. ±15mA 12 11 10 9 8 7 6 5 4 3 2 1 Digital Inputs (CS, SDI, SCK, RESET) .. –0.3V to (V VREFOUT 13 48 Q1 DD + 0.3V) VREFP 14 47 Q2 Digital Outputs (SDO, INTERRUPT) –0.3V to (V GND 15 46 Q3 DD + 0.3V) CH1 16 45 VDD VREFP .. –0.3V to 2.8V CH2 17 44 GND CH3 18 43 LDO Q1, Q2, Q3, LDO, VREFOUT, VREF_BVP (Note 17) CH4 19 42 RESET CH5 20 41 CS Reference Short-Circuit Duration ... Indefinite CH6 21 40 SDI Operating Temperature Range CH7 22 39 SDO CH8 23 38 SCK LTC2983C ...0ºC to 70ºC CH9 24 37 INTERRUPT LTC2983I ... –40ºC to 85ºC LTC2983H ...–40ºC to 125ºC 25 26 27 28 29 30 31 32 33 34 35 36 CH10 CH11 CH12 CH13 CH14 CH15 CH16 CH17 CH18 CH19 CH20 COM LX PACKAGE 48-LEAD (7mm × 7mm) PLASTIC LQFP TJMAX = 150°C, θJA = 57°C/W
ORDER INFORMATION LEAD FREE FINISH TRAY PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC2983CLX#PBF LTC2983CLX#PBF LTC2983LX 48-Lead (7mm × 7mm) LQFP 0°C to 70°C LTC2983ILX#PBF LTC2983ILX#PBF LTC2983LX 48-Lead (7mm × 7mm) LQFP –40°C to 85°C LTC2983HLX#PBF LTC2983HLX#PBF LTC2983LX 48-Lead (7mm × 7mm) LQFP –40°C to 125°C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. For more information on lead free part marking, go to: http://www.linear.com/leadfree/
COMPLETE SYSTEM ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. PARAMETER CONDITIONS MIN TYP MAX UNITS
Supply Voltage l 2.85 5.25 V Supply Current l 15 20 mA Sleep Current l 25 60 µA Input Range All Analog Input Channels l –0.05 VDD – 0.3 V Output Rate Two Conversion Cycle Mode (Notes 6, 9) l 150 164 170 ms Output Rate Three Conversion Cycle Mode (Notes 6, 9) l 225 246 255 ms Input Common Mode Rejection 50Hz/60Hz (Note 4) l 120 dB Input Normal Mode Rejection 60Hz (Notes 4, 7) l 120 dB 2983fc For more information www.linear.com/LTC2983 3 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Complete System Electrical Characteristics Pin Configuration ADC Electrical Characteristics Reference Electrical Characteristics Digital Inputs and Digital Outputs Typical Performance Characteristics Pin Functions Block Diagram Test Circuits Timing Diagram Overview Applications Information Thermocouple Measurements Diode Measurements RTD Measurements Thermistor Measurements Direct ADC Measurements Supplemental Information Fault Protection and Anti-Aliasing 2- and 3-Cycle Conversion Modes Running Conversions Consecutively on Multiple Channels MUX Configuration Delay Global Configuration Register Custom Thermocouples Custom RTDs Custom Thermistors Package Description Revision History Typical Application Related Parts
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Notes 1, 2)
Supply Voltage (VDD) ... –0.3V to 6V TOP VIEW Analog Input Pins (CH1 to CH20, COM) ... –0.3V to (VDD + 0.3V) GND V REF_BYP NC GND V DD GND V DD GND V DD GND V DD GND Input Current (CH1 to CH20, COM) .. ±15mA 12 11 10 9 8 7 6 5 4 3 2 1 Digital Inputs (CS, SDI, SCK, RESET) .. –0.3V to (V VREFOUT 13 48 Q1 DD + 0.3V) VREFP 14 47 Q2 Digital Outputs (SDO, INTERRUPT) –0.3V to (V GND 15 46 Q3 DD + 0.3V) CH1 16 45 VDD VREFP .. –0.3V to 2.8V CH2 17 44 GND CH3 18 43 LDO Q1, Q2, Q3, LDO, VREFOUT, VREF_BVP (Note 17) CH4 19 42 RESET CH5 20 41 CS Reference Short-Circuit Duration ... Indefinite CH6 21 40 SDI Operating Temperature Range CH7 22 39 SDO CH8 23 38 SCK LTC2983C ...0ºC to 70ºC CH9 24 37 INTERRUPT LTC2983I ... –40ºC to 85ºC LTC2983H ...–40ºC to 125ºC 25 26 27 28 29 30 31 32 33 34 35 36 CH10 CH11 CH12 CH13 CH14 CH15 CH16 CH17 CH18 CH19 CH20 COM LX PACKAGE 48-LEAD (7mm × 7mm) PLASTIC LQFP TJMAX = 150°C, θJA = 57°C/W
ORDER INFORMATION LEAD FREE FINISH TRAY PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC2983CLX#PBF LTC2983CLX#PBF LTC2983LX 48-Lead (7mm × 7mm) LQFP 0°C to 70°C LTC2983ILX#PBF LTC2983ILX#PBF LTC2983LX 48-Lead (7mm × 7mm) LQFP –40°C to 85°C LTC2983HLX#PBF LTC2983HLX#PBF LTC2983LX 48-Lead (7mm × 7mm) LQFP –40°C to 125°C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. For more information on lead free part marking, go to: http://www.linear.com/leadfree/
COMPLETE SYSTEM ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. PARAMETER CONDITIONS MIN TYP MAX UNITS
Supply Voltage l 2.85 5.25 V Supply Current l 15 20 mA Sleep Current l 25 60 µA Input Range All Analog Input Channels l –0.05 VDD – 0.3 V Output Rate Two Conversion Cycle Mode (Notes 6, 9) l 150 164 170 ms Output Rate Three Conversion Cycle Mode (Notes 6, 9) l 225 246 255 ms Input Common Mode Rejection 50Hz/60Hz (Note 4) l 120 dB Input Normal Mode Rejection 60Hz (Notes 4, 7) l 120 dB 2983fc For more information www.linear.com/LTC2983 3 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Complete System Electrical Characteristics Pin Configuration ADC Electrical Characteristics Reference Electrical Characteristics Digital Inputs and Digital Outputs Typical Performance Characteristics Pin Functions Block Diagram Test Circuits Timing Diagram Overview Applications Information Thermocouple Measurements Diode Measurements RTD Measurements Thermistor Measurements Direct ADC Measurements Supplemental Information Fault Protection and Anti-Aliasing 2- and 3-Cycle Conversion Modes Running Conversions Consecutively on Multiple Channels MUX Configuration Delay Global Configuration Register Custom Thermocouples Custom RTDs Custom Thermistors Package Description Revision History Typical Application Related Parts
