LTC2486IDE datasheet(2/36 Pages) LINER

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LTC2486

2486f

PACKAGE/ORDER INFORMATION

ELECTRICAL CHARACTERISTICS (NORMAL SPEED)

ABSOLUTE MAXIMUM RATINGS

Supply Voltage (VCC) ................................... –0.3V to 6V

Analog Input Voltage

(CH0 to CH3, COM) .................. –0.3V to (VCC + 0.3V)

REF+, REF–................................ –0.3V to (VCC + 0.3V)

Digital Input Voltage...................... –0.3V to (VCC + 0.3V)

Digital Output Voltage ................... –0.3V to (VCC + 0.3V)

Operating Temperature Range

LTC2486C ................................................ 0°C to 70°C

LTC2486I ............................................. –40°C to 85°C

Storage Temperature Range................... –65°C to 150°C

(Notes 1, 2)

REF–

REF+

VCC

CH3

CH2

CH1

CH0

SDI

SCK

SDO

GND

COM

DE PACKAGE

14-LEAD (4mm

× 3mm) PLASTIC DFN

TJMAX = 125°C, θJA = 37°C/W

EXPOSED PAD (PIN 15) IS GND, MUST BE SOLDERED TO PCB

ORDER PART NUMBER

DE PART MARKING*

LTC2486CDE

LTC2486IDE

2486

Order Options Tape and Reel: Add #TR

Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF

Lead Free Part Marking: http://www.linear.com/leadfree/

Consult LTC Marketing for parts speciﬁed with wider operating temperature ranges.

*The temperature grade is identiﬁed by a label on the shipping container.

The

● 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)

Bits

Integral Nonlinearity

5V ≤ VCC ≤ 5.5V, VREF = 5V, VIN(CM) = 2.5V (Note 6)

2.7V ≤ VCC ≤ 5.5V, VREF = 2.5V, VIN(CM) = 1.25V (Note 6)

●

ppm of VREF

Offset Error

2.5V ≤ VREF ≤ VCC, GND ≤ IN

+ = IN– ≤ VCC (Note 14)

●

0.5

µV

Offset Error Drift

2.5V ≤ VREF ≤ VCC, GND ≤ IN

+ = IN– ≤ VCC

nV/°C

Positive Full-Scale Error

2.5V ≤ VREF ≤ VCC, IN

+ = 0.75VREF, IN– = 0.25VREF

●

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

●

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

5V ≤ VCC ≤ 5.5V, VREF = 5V, VIN(CM) = 2.5V

2.7V ≤ VCC ≤ 5.5V, VREF = 2.5V, VIN(CM) = 1.25V

ppm of VREF

Output Noise

5.5V < VCC < 2.7V, 2.5V ≤ VREF ≤ VCC,

GND ≤ IN+ = IN– ≤ VCC (Note 13)

0.6

µVRMS

Internal PTAT Signal

TA = 27°C (Note 14)

27.8

28.0

28.2

Internal PTAT Temperature Coefﬁcient

93.5

µV/°C

Programmable Gain

●

256

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