LTC2439-1 datasheet(2/28 Pages) LINER

Part #	LTC2439-1

Description	8-/16-Channel 16-Bit No Latency Delta-Sigma ADC

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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LTC2439-1

2

24391f

(Notes 1, 2)

Supply Voltage (VCC) to GND.......................– 0.3V to 7V

Analog Input Voltage to GND ....... – 0.3V to (VCC + 0.3V)

Reference Input Voltage to GND .. – 0.3V to (VCC + 0.3V)

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

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

Operating Temperature Range

LTC2439-1C ............................................ 0

°C to 70°C

LTC2439-1I ........................................ – 40

°C to 85°C

Storage Temperature Range ................. – 65

°C to 150°C

Lead Temperature (Soldering, 10 sec).................. 300

°C

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

ORDER PART

NUMBER

LTC2439-1CGN

LTC2439-1IGN

TJMAX = 125°C, θJA = 110°C/W

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

1

2

3

4

5

6

7

8

9

10

11

12

13

14

TOP VIEW

GN PACKAGE

28-LEAD PLASTIC SSOP

28

27

26

25

24

23

22

21

20

19

18

17

16

15

CH8

CH9

CH10

CH11

CH12

CH13

CH14

CH15

VCC

COM

REF+

REF–

NC

CH7

CH6

CH5

CH4

CH3

CH2

CH1

CH0

SDI

FO

SCK

SDO

CS

GND

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Resolution (No Missing Codes)

0.1V

≤ VREF ≤ VCC, –0.5 • VREF ≤ VIN ≤ 0.5 • VREF, (Note 5)

q

16

Bits

Integral Nonlinearity

4.5V

≤ VCC ≤ 5.5V, REF+ = 2.5V, REF– = GND, VINCM = 1.25V, (Note 6)

0.06

LSB

5V

≤ VCC ≤ 5.5V, REF+ = 5V, REF– = GND, VINCM = 2.5V, (Note 6)

q

0.12

1.25

LSB

REF+ = 2.5V, REF– = GND, VINCM = 1.25V, (Notes 6, 15)

0.30

LSB

Offset Error

2.5V

≤ REF+ ≤ VCC, REF– = GND,

q

520

µV

GND

≤ IN+ = IN– ≤ VCC, (Notes 12,15)

Offset Error Drift

2.5V

≤ REF+ ≤ VCC, REF– = GND,

10

nV/

°C

GND

≤ IN+ = IN– ≤ VCC

Positive Full-Scale Error

2.5V

≤ REF+ ≤ VCC, REF– = GND,

q

0.16

1.25

LSB

IN+ = 0.75REF+, IN– = 0.25 • REF+ (Note 15)

Positive Full-Scale Error Drift

2.5V

≤ REF+ ≤ VCC, REF– = GND,

0.03

ppm of VREF/°C

IN+ = 0.75REF+, IN– = 0.25 • REF+

Negative Full-Scale Error

2.5V

≤ REF+ ≤ VCC, REF– = GND,

q

0.16

1.25

LSB

IN+ = 0.25 • REF+, IN– = 0.75 • REF+ (Note 15)

Negative Full-Scale Error Drift

2.5V

≤ REF+ ≤ VCC, REF– = GND,

0.03

ppm of VREF/°C

IN+ = 0.25 • REF+, IN– = 0.75 • REF+

Total Unadjusted Error

5V

≤ VCC ≤ 5.5V, REF+ = 2.5V, REF– = GND, VINCM = 1.25V

0.20

LSB

5V

≤ VCC ≤ 5.5V, REF+ = 5V, REF– = GND, VINCM = 2.5V

0.20

LSB

REF+ = 2.5V, REF– = GND, VINCM = 1.25V, (Note 6)

0.25

LSB

Output Noise

5V

≤ VCC ≤ 5.5V, REF+ = 5V, VREF– = GND,

1

µVRMS

GND

≤ IN– = IN+ ≤ 5V (Note 12)

The q denotes specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. (Notes 3, 4)

ELECTRICAL CHARACTERISTICS

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