LTC2494 absolute MaxiMuM ratingspin conFiguration(Notes 1, 2) Supply Voltage (VCC) ... –0.3V to 6V TOP VIEW Analog Input Voltage (CH0 to CH15, COM) ...–0.3V to (V SCK SDO CS f O SDI GND GND CC + 0.3V) 38 37 36 35 34 33 32 REF+, REF– ..–0.3V to (VCC + 0.3V) GND 1 31 GND ADCINN, ADCINP, MUXOUTP, NC 2 30 REF– MUXOUTN ..–0.3V to (VCC + 0.3V) GND 3 29 REF+ Digital Input Voltage..–0.3V to (V GND 4 28 V CC + 0.3V) CC Digital Output Voltage ...–0.3V to (V GND 5 27 MUXOUTN CC + 0.3V) Operating Temperature Range GND 6 26 ADCINN 39 COM 7 25 ADCINP LTC2494C .. 0°C to 70°C CH0 8 24 MUXOUTP LTC2494I ...–40°C to 85°C CH1 9 23 CH15 Storage Temperature Range .. –65°C to 150°C CH2 10 22 CH14 CH3 11 21 CH13 CH4 12 20 CH12 13 14 15 16 17 18 19 CH5 CH6 CH7 CH8 CH9 CH10 CH11 UHF PACKAGE 38-LEAD (5mm × 7mm) PLASTIC QFN TJMAX = 125°C, θJA = 34°C/W EXPOSED PAD (PIN 39) IS GND, MUST BE SOLDERED TO PCB orDer inForMation LEAD FREE FINISHTAPE AND REELPART MARKING*PACKAGE DESCRIPTIONTEMPERATURE RANGE LTC2494CUHF#PBF LTC2494CUHF#TRPBF 2494 38-Lead (5mm × 7mm) Plastic QFN 0°C to 70°C LTC2494IUHF#PBF LTC2494IUHF#TRPBF 2494 38-Lead (5mm × 7mm) Plastic QFN –40°C to 85°C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. Consult LTC Marketing for information on non-standard lead based finish parts. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/ 2494fe 2 For more information www.linear.com/LTC2494