LTC2271_15 datasheet(2/24 Pages) LINER

Part #	LTC2271

Description	16-Bit, 20Msps Serial Low Noise Dual ADC

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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LTC2271

2

2271f

Supply Voltages

VDD, OVDD................................................ –0.3V to 2V

Analog Input Voltage

AIN+, AIN–, PAR/SER, SENSE

(Note 3) ....................................–0.3V to (VDD + 0.2V)

Digital Input Voltage

ENC+, ENC–, CS, SDI, SCK (Note 4)...... –0.3V to 3.9V

SDO (Note 4) ............................................ –0.3V to 3.9V

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

Operating Temperature Range

LTC2271C ................................................ 0°C to 70°C

LTC2271I.............................................. –40°C to 85°C

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

(Notes 1, 2)

16

15

17 18 19

TOP VIEW

53

GND

UKG PACKAGE

52-LEAD (7mm

8mm) PLASTIC QFN

20 21 22 23 24 25 26

51

52

50 49 48 47 46 45 44 43 42 41

33

34

35

36

37

38

39

40

8

7

6

5

4

3

2

1

VCM1

GND

AIN1+

AIN1–

GND

REFH

REFL

REFH

REFL

PAR/SER

AIN2+

AIN2–

GND

VCM2

OUT1C+

OUT1C–

OUT1D+

OUT1D–

DCO+

DCO–

OVDD

OGND

FR+

FR–

OUT2A+

OUT2A–

OUT2B+

OUT2B–

32

31

30

29

28

27

9

10

11

12

13

14

TJMAX = 150°C, θJA = 29°C/W

EXPOSED PAD (PIN 53) IS GND, MUST BE SOLDERED TO PCB

ORDER INFORMATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC2271CUKG#PBF

LTC2271CUKG#TRPBF

LTC2271UKG

52-Lead (7mm × 8mm) Plastic QFN

0°C to 70°C

LTC2271IUKG#PBF

LTC2271IUKG#TRPBF

LTC2271UKG

52-Lead (7mm × 8mm) 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/

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

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