Datasheet LTC2488 (Analog Devices) - 2

LTC2488
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 (VCC + 0.3V) SDI 2 13 REF+ REF+, REF– ..–0.3V to (V SCK 3 12 VCC CC + 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 (VCC + 0.3V) GND 6 9 CH1 Operating Temperature Range COM 7 8 CH0 LTC2488C .. 0°C to 70°C DE PACKAGE LTC2488I ...–40°C to 85°C 14-LEAD (4mm x 3mm) PLASTIC DFN T Storage Temperature Range .. –65°C to 150°C JMAX = 125°C, θJA = 37°C/W 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
LTC2488CDE#PBF LTC2488CDE#TRPBF 2488 14-Lead (4mm × 3mm) Plastic DFN 0°C to 70°C LTC2488IDE#PBF LTC2488IDE#TRPBF 2488 14-Lead (4mm × 3mm) Plastic DFN –40°C to 85°C Consult LTC Marketing for parts specified with wider operating temperature ranges. *Temperature grades are 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. (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 ≤ V l REF ≤ VCC, IN+ = 0.75VREF, IN– = 0.25VREF 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 ≤ V l REF ≤ VCC, IN+ = 0.25VREF, IN– = 0.75VREF 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 2.7V < VCC < 5.5V, 2.5V ≤ VREF ≤ VCC, 0.6 µVRMS GND ≤ IN+ = IN– ≤ VCC (Note 13) 2488fb 2 For more information www.linear.com/LTC2488