LTC2252 datasheet(2/24 Pages) LINER

Part #	LTC2252

Description	12-Bit, 125/105Msps Low Power 3V ADCs

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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2 / 24 page

LTC2253/LTC2252

2

22532fa

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

OVDD = VDD (Notes 1, 2)

Supply Voltage (VDD) ................................................. 4V

Digital Output Ground Voltage (OGND) ....... –0.3V to 1V

Analog Input Voltage (Note 3) ..... –0.3V to (VDD + 0.3V)

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

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

Power Dissipation ............................................ 1500mW

Operating Temperature Range

LTC2253C, LTC2252C ............................. 0

°C to 70°C

LTC2253I, LTC2252I ...........................–40

°C to 85°C

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

°C to 125°C

ORDER PART

NUMBER

QFN PART*

MARKING

TJMAX = 125°C, θJA = 34°C/W

EXPOSED PAD (PIN 33) IS GND

MUST BE SOLDERED TO PCB

2253

2252

LTC2253CUH

LTC2253IUH

LTC2252CUH

LTC2252IUH

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

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

32 31 30 29 28 27 26 25

9

10 11 12

TOP VIEW

UH PACKAGE

32-LEAD (5mm

× 5mm) PLASTIC QFN

13 14 15 16

17

18

19

20

21

22

23

24

8

7

6

5

4

3

2

1

AIN

+

AIN

–

REFH

REFL

VDD

GND

D8

D7

D6

OVDD

OGND

D5

D4

D3

33

The

● denotes the specifications which apply over the full operating

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

LTC2253

LTC2252

PARAMETER

CONDITIONS

MIN

TYP

MAX

MIN

TYP

MAX

UNITS

Resolution (No Missing Codes)

●

12

Bits

Integral Linearity Error

Differential Analog Input

●

–1.5

±0.3

1.5

–1.5

±0.3

1.5

LSB

(Note 5)

Differential Linearity Error

Differential Analog Input

●

–0.7

±0.15

0.7

–0.7

±0.15

0.7

LSB

Offset Error

(Note 6)

●

–12

±212

–12

±212

mV

Gain Error

External Reference

●

–2.5

±0.5

2.5

–2.5

±0.5

2.5

%FS

Offset Drift

±10

µV/°C

Full-Scale Drift

Internal Reference

±30

ppm/

°C

External Reference

±5

ppm/

°C

Transition Noise

SENSE = 1V

0.32

LSBRMS

CO VERTER CHARACTERISTICS

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/

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LTC2252 Datasheet(PDF) 2 Page - Linear Technology

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