Datasheet LTC2472 (Analog Devices) - 3

LTC2470/LTC2472
orDer inForMaTion LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC2472CMS#PBF LTC2472CMS#TRPBF 2472 12-Lead Plastic MSOP 0°C to 70°C LTC2472IMS#PBF LTC2472IMS#TRPBF 2472 12-Lead Plastic MSOP –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/
elecTrical characTerisTics The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 2) PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution 16 Bits Integral Nonlinearity Output Rate 208sps (Note 4) l 2 8.5 LSB Output Rate 833sps (Note 4) l 8 16 LSB Offset Error l ±1 ±2.5 mV Offset Error Drift 0.05 LSB/°C Gain Error l ±0.01 ±0.25 % of FS Gain Error Drift l 0.15 LSB/°C Transition Noise 3 µVRMS Power Supply Rejection DC 80 dB
analog inpuTs The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V + IN Positive Input Voltage Range LTC2472 l 0 VREF V V – IN Negative Input Voltage Range LTC2472 l 0 VREF V VIN Input Voltage Range LTC2470 l 0 VREF V V + + – OR , VUR Overrange/Underrange Voltage, IN+ VIN = 0.625V 8 LSB V – – + OR , VUR Overrange/Underrange Voltage, IN– VIN = 0.625V 8 LSB CIN IN+, IN–, IN Sampling Capacitance 0.35 pF IDC_LEAK(IN+, IN–, IN) IN+, IN– DC Leakage Current (LTC2472) VIN = GND (Note 5) l –10 ±1 10 nA IN DC Leakage Current (LTC2470) VIN = VCC (Note 5) l –10 ±1 10 nA ICONV Input Sampling Current (Note 8) 50 nA VREF Reference Output Voltage l 1.247 1.25 1.253 V Reference Voltage Coefficient (Note 9) C-Grade l ±2 ±10 ppm/°C I-Grade ±5 ppm/°C Reference Line Regulation 2.7V ≤ VCC ≤ 5.5V –90 dB Reference Short Circuit Current VCC = 5.5, Forcing Output to GND l 35 mA COMP Pin Short Circuit Current VCC = 5.5, Forcing Output to GND l 200 µA Reference Load Regulation 2.7V ≤ VCC ≤ 5.5V, IOUT = 100μA Sourcing 3.5 mV/mA Reference Output Noise Density CCOMP= 0.1μF, CREFOUT = 0.1μF, At f = 30 nV/√Hz 1ksps 24702fb For more information www.linear.com/LTC2470 3 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Analog Inputs Power Requirements Digital Inputs and Digital Outputs Timing Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Package Description Revision History Typical Application Related Parts