LTC2325-12 absoluTe MaxiMuM raTingspin conFiguraTion(Notes 1, 2) Supply Voltage (V TOP VIEW DD) ..6V – + Supply Voltage (OVDD) ..3V Analog Input Voltage V DD NC NC GND NC NC GND REFOUT4 V DD REFBUFEN DNC/SCK SCK/SCK A 52 51 50 49 48 47 46 45 44 43 42 41 IN+, AIN– (Note 3) ... –0.3V to (VDD + 0.3V) A – IN4 1 40 DNC/SDOD– REFOUT1,2,3,4.. .–0.3V to (VDD + 0.3V) A + IN4 2 39 SDO4/SDOD+ CNV.. –0.3V to (OVDD + 0.3V) GND 3 38 GND Digital Input Voltage A – IN3 4 37 OVDD + (Note 3) .. (GND – 0.3V) to (OV AIN3 5 36 DNC/SDOC– DD + 0.3V) REFOUT3 6 35 SDO3/SDOC+ Digital Output Voltage GND 7 34 CLKOUTEN/CLKOUT– (Note 3) .. (GND – 0.3V) to (OV 53 DD + 0.3V) REF 8 GND 33 CLKOUT/CLKOUT+ Operating Temperature Range REFOUT2 9 32 GND – LTC2325C .. 0°C to 70°C AIN2 10 31 OVDD A + IN2 11 30 DNC/SDOB– LTC2325I ...–40°C to 85°C GND 12 29 SDO2/SDOB+ LTC2325H .. –40°C to 125°C A – IN1 13 28 DNC/SDOA– + Storage Temperature Range .. –65°C to 150°C AIN1 14 27 SDO1/SDOA+ 15 16 17 18 19 20 21 22 23 24 25 26 V DD NC NC NC NC GND V DD /DDR CNV VDS /L GND REFOUT1 SDR CMOS UKG PACKAGE 52-LEAD (7mm × 8mm) PLASTIC QFN TJMAX = 150°C, θJA = 31°C/W EXPOSED PAD (PIN 53) IS GND, MUST BE SOLDERED TO PCB orDer inForMaTion http://www.linear.com/product/LTC2325-12#orderinfoLEAD FREE FINISHTAPE AND REELPART MARKING*PACKAGE DESCRIPTIONTEMPERATURE RANGE LTC2325CUKG-12#PBF LTC2325CUKG-12#TRPBF LTC2325UKG-12 52-Lead (7mm × 8mm) Plastic QFN 0°C to 70°C LTC2325IUKG-12#PBF LTC2325IUKG-12#TRPBF LTC2325UKG-12 52-Lead (7mm × 8mm) Plastic QFN –40°C to 85°C LTC2325HUKG-12#PBF LTC2325HUKG-12#TRPBF LTC2325UKG-12 52-Lead (7mm × 8mm) Plastic QFN –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/ For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix. 232512f 2 For more information www.linear.com/LTC2325-12 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Converter Characteristics Dynamic Accuracy Internal Reference Characteristics Digital Inputs And Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Timing Diagram Applications Information Package Description Typical Application Related Parts