LTC2460/LTC2462 Ultra-Tiny, 16-Bit ADCs with 10ppm/C Max Precision Reference Fea T Descrip T n 16-Bit Resolution, No Missing Codes The LTC 2460/LTC2462 are ultra tiny, 16-Bit analog-to- n Internal Reference, High Accuracy 10ppm/C (Max) digital converters with an integrated precision reference. n Single-Ended (LTC2460) or Differential (LTC2462) They use a single 2.7V to 5.5V supply and communicate n 2LSB Offset Error through an SPI Interface. The LTC2460 is single-ended n 0.01% Gain Error with a 0V to V input range and the LTC2462 is dif- REF n 60 Conversions Per Second ferential with a V input range. Both ADCs include REF n Single Conversion Settling Time for Multiplexed a 1.25V integrated reference with 2ppm/C drift per- Applications formance and 0.1% initial accuracy. The converters are n Single-Cycle Operation with Auto Shutdown available in a 12-pin DFN 3mm 3mm package or an n 1.5mA Supply Current MSOP-12 package. They include an integrated oscillator n 2A (Max) Sleep Current and perform conversions with no latency for multiplexed n Internal OscillatorNo External Components Required applications. The LTC2460/LTC2462 include a proprietary n SPI Interface input sampling scheme that reduces the average input n Ultra-Tiny 12-Lead 3mm 3mm DFN and MSOP current several orders of magnitude when compared to Packages conventional delta sigma converters. Following a single conversion, the LTC2460/LTC2462 a T automatically power down the converter and can also be n System Monitoring configured to power down the reference. When both the n Environmental Monitoring ADC and reference are powered down, the supply current n Direct Temperature Measurements is reduced to 200nA. n Instrumentation n The LTC2460/LTC2462 can sample at 60 conversions per Industrial Process Control n second, and due to the very large oversampling ratio, Data Acquisition n have extremely relaxed antialiasing requirements. Both Embedded ADC Upgrades include continuous internal offset and fullscale calibration L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and No Latency is a trademark of Linear Technology Corporation. All other trademarks are the algorithms which are transparent to the user, ensuring property of their respective owners. Protected by U.S. Patents including 6208279, 6411242, 7088280, 7164378. accuracy over time and the operating temperature range. Typical a T V vs Temperature REF 1.2520 2.7V TO 5.5V 1.2515 0.1F 0.1F 0.1F 10F 1.2510 0.1F 1.2505 REFOUT COMP V CC + 1.2500 IN SCK 10k 10k SPI LTC2462 SDO INTERFACE 1.2495 IN CS 0.1F 1.2490 REF GND 10k R 1.2485 24602 TA01a 1.2480 50 30 10 10 30 50 70 90 TEMPERATURE (C) 24602 TA01b 24602fa 1 REFERENCE OUTPUT VOLTAGE (V) ion pplica ions pplica ion uresLTC2460/LTC2462 a Te Maxi Mu M r a T (Notes 1, 2) Supply Voltage (V ) ................................... 0.3V to 6V Storage Temperature Range .................. 65C to 150C CC Analog Input Voltage Operating Temperature Range + (IN , IN , IN, REF , LTC2460C/LTC2462C ............................... 0C to 70C COMP, REFOUT) ...........................0.3V to (V + 0.3V) LTC2460I/LTC2462I .............................40C to 85C CC Digital Voltage (V , V , V , V ) ................0.3V to (V + 0.3V) SDI SDO SCK CS CC p in c F T LTC2462 LTC2462 TOP VIEW TOP VIEW 1 V REFOUT 12 CC REFOUT 1 12 V GND CC COMP 2 11 COMP 2 11 GND 3 CS 10 IN CS 3 10 IN + 4 + SDI 9 IN SDI 4 9 IN SCK 5 8 REF SCK 5 8 REF SDO 6 7 GND SDO 6 7 GND DD PACKAGE MS PACKAGE 12-LEAD (3mm 3mm) PLASTIC DFN 12-LEAD PLASTIC MSOP T = 125C, = 120C/W T = 125C, = 43C/W JMAX JA JMAX JA EXPOSED PAD (PIN 13) PCB GROUND CONNECTION OPTIONAL LTC2460 LTC2460 TOP VIEW TOP VIEW REFOUT 1 12 V CC REFOUT 1 12 V 2 11 GND CC COMP COMP 2 11 GND 3 GND CS 10 CS 3 10 GND 4 IN SDI 9 SDI 4 9 IN 5 REF 5 SCK 8 SCK 8 REF 6 SDO 7 GND 6 7 SDO GND DD PACKAGE MS PACKAGE 12-LEAD (3mm 3mm) PLASTIC DFN 12-LEAD PLASTIC MSOP T = 125C, = 43C/W T = 125C, = 120C/W JMAX JA JMAX JA EXPOSED PAD (PIN 13) PCB GROUND CONNECTION OPTIONAL Der in F Ma T LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC2460CDD PBF LTC2460CDD TRPBF LFDQ 12-Lead Plastic (3mm 3mm) DFN 0C to 70C LTC2460IDD PBF LTC2460IDD TRPBF LFDQ 12-Lead Plastic (3mm 3mm) DFN 40C to 85C LTC2460CMS PBF LTC2460CMS TRPBF 2460 12-Lead Plastic MSOP-12 0C to 70C LTC2460IMS PBF LTC2460IMS TRPBF 2460 12-Lead Plastic MSOP-12 40C to 85C LTC2462CDD PBF LTC2462CDD TRPBF LDXM 12-Lead Plastic (3mm 3mm) DFN 0C to 70C LTC2462IDD PBF LTC2462IDD TRPBF LDXM 12-Lead Plastic (3mm 3mm) DFN 40C to 85C LTC2462CMS PBF LTC2462CMS TRPBF 2462 12-Lead Plastic MSOP-12 0C to 70C LTC2462IMS PBF LTC2462IMS TRPBF 2462 12-Lead Plastic MSOP-12 40C to 85C 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: