LTC6945 datasheet(2/24 Pages) LINER

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LTC2271

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)

17 18 19

TOP VIEW

GND

UKG PACKAGE

52-LEAD (7mm

8mm) PLASTIC QFN

20 21 22 23 24 25 26

50 49 48 47 46 45 44 43 42 41

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–

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

LTC6945 Datenblatt(PDF) 2 Page - Linear Technology

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