LTC2500-32 ABSOLUTE MAXIMUM RATINGSPIN CONFIGURATION(Notes 1, 2) Supply Voltage (VDD) ...2.8V Supply Voltage (OVDD) ..6V Reference Input (REF) ...6V TOP VIEW Analog Input Voltage (Note 3) RDLA 1 24 GND IN+, IN– ...(GND – 0.3V) to (REF + 0.3V) RDLB 2 23 GND Digital Input Voltage VDD 3 22 OVDD GND 4 21 BUSY (Note 3) .. (GND – 0.3V) to (OV IN+ 5 20 SDOB DD + 0.3V) IN– 6 25 19 SCKB Digital Output Voltage GND 7 GND 18 SCKA (Note 3) .. (GND – 0.3V) to (OV REF 8 17 SDOA DD + 0.3V) REF 9 16 SDI Power Dissipation .. 500mW PRE 10 15 DRL Operating Temperature Range GND 11 14 SYNC GND 12 13 MCLK LTC2500C-32 ... 0°C to 70°C LTC2500I-32 ..–40°C to 85°C DKD PACKAGE Storage Temperature Range .. –65°C to 150°C 24-LEAD (7mm × 4mm) PLASTIC DFN TJMAX = 125°C, θJA = 40°C/W EXPOSED PAD (PIN 25) IS GND, MUST BE SOLDERED TO PCB ORDER INFORMATION http://www.linear.com/product/LTC2500-32#orderinfoLEAD FREE FINISHTAPE AND REELPART MARKING*PACKAGE DESCRIPTIONTEMPERATURE RANGE LTC2500CDKD-32#PBF LTC2500CDKD-32#TRPBF 250032 24-Lead (7mm × 4mm) Plastic DFN 0°C to 70°C LTC2500IDKD-32#PBF LTC2500IDKD-32#TRPBF 250032 24-Lead (7mm × 4mm) Plastic DFN –40°C to 85°C Consult ADI 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. 250032fb For more information www.linear.com/LTC2500-32 3 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Converter Characteristics for Filtered Output (SDOA) Dynamic Accuracy for Filtered Output (SDOA) Converter Characteristics for No latency Output (SDOB) Dynamic Accuracy for No Latency Output (SDOB) Reference Input Digital Inputs and Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Timing Diagram Applications Information Overview Converter Operation Transfer Function Analog Input Input Drive Circuits ADC Reference Dynamic Performance Power Considerations Timing and Control Decimation Filters Digital Filter Types Digital Interface Preset Filter Modes Filtered Output Data No Latency Output Data Board Layout Package Description Revision History Typical Application Related Parts