LTC2499_1 datasheet(2/34 Pages) LINER

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LTC2499

2499fc

ABSOLUTE MAXIMUM RATINGS

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

Analog Input Voltage

(CH0-CH15, COM) ....................–0.3V to (VCC + 0.3V)

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

ADCINN, ADCINP, MUXOUTP,

MUXOUTN ................................–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

LTC2499C ................................................ 0°C to 70°C

LTC2499I..............................................–40°C to 85°C

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

(Notes 1, 2)

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 13)

0.5

2.5

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

PIN CONFIGURATION

13 14 15 16

TOP VIEW

UHF PACKAGE

38-LEAD (5mm

7mm) PLASTIC QFN

17 18 19

38 37 36 35 34 33 32

GND

SCL

SDA

GND

COM

CH0

CH1

CH2

CH3

CH4

GND

REF–

REF+

VCC

MUXOUTN

ADCINN

ADCINP

MUXOUTP

CH15

CH14

CH13

CH12

TJMAX = 125°C, θJA = 34°C/W

EXPOSED PAD (PIN #39) IS GND, MUST BE SOLDERED TO PCB

ORDER INFORMATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC2499CUHF#PBF

LTC2499CUHF#TRPBF

2499

38-Lead (5mm

× 7mm) Plastic QFN

0°C to 70°C

LTC2499IUHF#PBF

LTC2499IUHF#TRPBF

2499

38-Lead (5mm

× 7mm) Plastic QFN

–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)

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