Datasheet LTC2986, LTC2986-1 (Analog Devices) - 3

LTC2986/LTC2986-1
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Notes 1, 2)
Supply Voltage (VDD) ... –0.3V to 6V TOP VIEW Analog Input Pins (CH1 to CH10, 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 CH10, COM) .. ±15mA 12 11 10 9 8 7 6 5 4 3 2 1 Digital Inputs (CS, SDI, SCK, RESET) .. –0.3V to (VDD + 0.3V) VREFOUT 13 48 Q1 Digital Outputs (SDO, INTERRUPT) –0.3V to (V VREFP 14 47 Q2 DD + 0.3V) GND 15 46 Q3 VREFP .. –0.3V to 2.8V CH1 16 45 VDD CH2 17 44 GND Q1, Q2, Q3, LDO, VREFOUT, VREF_BYP (Note 18) CH3 18 43 LDO Reference Short-Circuit Duration ... Indefinite CH4 19 42 RESET CH5 20 41 CS Operating Temperature Range CH6 21 40 SDI CH7 22 39 SDO LTC2986C .. 0°C to 70°C CH8 23 38 SCK CH9 24 37 INTERRUPT LTC2986I ...–40°C to 85°C LTC2986H .. –40°C to 125°C 25 26 27 28 29 30 31 32 33 34 35 36 CH10 GND GND GND GND GND GND GND GND GND GND COM LX PACKAGE 48-LEAD (7mm × 7mm) PLASTIC LQFP TJMAX = 150°C, θJA = 57°C/W
ORDER INFORMATION http://www.linear.com/product/LTC2986#orderinfo LEAD FREE FINISH TRAY PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC2986CLX#PBF LTC2986CLX#PBF LTC2986LX 48-Lead (7mm × 7mm) LQFP 0°C to 70°C LTC2986ILX#PBF LTC2986ILX#PBF LTC2986LX 48-Lead (7mm × 7mm) LQFP –40°C to 85°C LTC2986HLX#PBF LTC2986HLX#PBF LTC2986LX 48-Lead (7mm × 7mm) LQFP –40°C to 125°C LTC2986CLX-1#PBF LTC2986CLX-1#PBF LTC2986LX-1 48-Lead (7mm × 7mm) LQFP 0°C to 70°C LTC2986ILX-1#PBF LTC2986ILX-1#PBF LTC2986LX-1 48-Lead (7mm × 7mm) LQFP –40°C to 85°C LTC2986HLX-1#PBF LTC2986HLX-1#PBF LTC2986LX-1 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/ 29861fa For more information www.linear.com/LTC2986 3 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Complete System Electrical Characteristics ADC Electrical Characteristics Reference Electrical Characteristics Digital Inputs and Digital Outputs LTC2986-1 EEPROM Characteristics Typical Performance Characteristics Pin Functions Block Diagram Test Circuits Timing Diagram Overview Applications Information EEPROM Overview (LTC2986-1) EEPROM Read/Write Validation EEPROM Write Operation EEPROM Read Operation (LTC2986-1) Thermocouple Measurements Diode Measurements RTD Measurements Thermistor Measurements Global Configuration Register Input Overvoltage Protection – Overview Active Analog Temperature Sensors Direct ADC Measurements 2- and 3-Cycle Conversion Modes Running Conversions Consecutively on Multiple Channels Entering/Exiting Sleep Mode MUX Configuration Delay Reference Considerations Custom Thermocouples Custom RTDs Custom Thermistors Package Description Revision History Typical Application Related Parts