Datasheet LTC2486 (Analog Devices) - 2

LTC2486
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Notes 1, 2)
Supply Voltage (VCC) ... –0.3V to 6V Analog Input Voltage FO 1 14 REF– (CH0 to CH3, COM) ...–0.3V to (V SDI 2 13 REF+ CC + 0.3V) SCK 3 12 VCC REF+, REF– ..–0.3V to (VCC + 0.3V) CS 4 15 11 CH3 Digital Input Voltage..–0.3V to (VCC + 0.3V) SDO 5 10 CH2 Digital Output Voltage ...–0.3V to (V GND 6 9 CH1 CC + 0.3V) Operating Temperature Range COM 7 8 CH0 LTC2486C .. 0°C to 70°C DE PACKAGE LTC2486I ...–40°C to 85°C 14-LEAD (4mm × 3mm) PLASTIC DFN TJMAX = 125°C, θJA = 37°C/W Storage Temperature Range .. –65°C to 150°C EXPOSED PAD (PIN 15) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC2486CDE#PBF LTC2486CDE#TRPBF 2486 14-Lead (4mm × 3mm) Plastic DFN 0°C to 70°C LTC2486IDE#PBF LTC2486IDE#TRPBF 2486 14-Lead (4mm × 3mm) Plastic DFN –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 (NORMAL SPEED) The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Notes 3, 4) PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution (No Missing Codes) 0.1V ≤ VREF ≤ VCC, –FS ≤ VIN ≤ +FS (Note 5) 16 Bits Integral Nonlinearity 5V ≤ VCC ≤ 5.5V, VREF = 5V, VIN(CM) = 2.5V (Note 6) l 2 20 ppm of VREF 2.7V ≤ VCC ≤ 5.5V, VREF = 2.5V, VIN(CM) = 1.25V (Note 6) 1 ppm of VREF Offset Error 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC (Note 14) l 0.5 5 µV Offset Error Drift 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC 10 nV/°C Positive Full-Scale Error 2.5V ≤ VREF ≤ VCC, IN+ = 0.75VREF, IN– = 0.25VREF l 32 ppm of VREF Positive Full-Scale Error Drift 2.5V ≤ VREF ≤ VCC, IN+ = 0.75VREF, IN– = 0.25VREF 0.1 ppm of VREF/°C Negative Full-Scale Error 2.5V ≤ VREF ≤ VCC, IN+ = 0.25VREF, IN– = 0.75VREF l 32 ppm of VREF Negative Full-Scale Error Drift 2.5V ≤ VREF ≤ VCC, IN+ = 0.25VREF, IN– = 0.75VREF 0.1 ppm of VREF/°C Total Unadjusted Error 5V ≤ VCC ≤ 5.5V, VREF = 2.5V, VIN(CM) = 1.25V 15 ppm of VREF 5V ≤ VCC ≤ 5.5V, VREF = 5V, VIN(CM) = 2.5V 15 ppm of VREF 2.7V ≤ VCC ≤ 5.5V, VREF = 2.5V, VIN(CM) = 1.25V 15 ppm of VREF Output Noise 5.5V < VCC < 2.7V, 2.5V ≤ VREF ≤ VCC, 0.6 µVRMS GND ≤ IN+ = IN– ≤ VCC (Note 13) Internal PTAT Signal TA = 27°C (Note 14) 27.8 28.0 28.2 mV Internal PTAT Temperature Coefficient 93.5 µV/°C Programmable Gain l 1 256 2486fe 2 For more information www.linear.com/LTC2486 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics (Normal Speed) Electrical Characteristics (2x Speed) Converter Characteristics Analog Input and Reference Digital Inputs and Digital Outputs Power Requirements Typical Performance Characteristics Pin Functions Functional Block Diagram Test Circuits Timing Diagrams Applications Information Package Description Revision History Typical Application Related Parts