LTC2272(RevA) 查看數據表（PDF） - Linear Technology
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LTC2272 Datasheet PDF : 44 Pages
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LTC2273/LTC2272
ABSOLUTE MAXIMUM RATINGS
OVDD = VDD (Notes 1, 2)
Supply Voltage (VDD) ................................... –0.3V to 4V
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 .............................................2000mW
Operating Temperature Range
LTC2273C/LTC2272C ............................... 0°C to 70°C
LTC2273I/LTC2272I.............................. –40°C to 85°C
Storage Temperature Range................... –65°C to 150°C
Digital Output Supply Voltage (OVDD) .......... –0.3V to 4V
PIN CONFIGURATION
TOP VIEW
40 39 38 37 36 35 34 33 32 31
VDD 1
VDD 2
GND 3
30 GND
29 SYNC–
28 SYNC+
AIN+ 4
AIN– 5
GND 6
GND 7
27 GND
26 GND
41
25 OVDD
24 CMLOUT+
GND 8
23 CMLOUT–
ENC+ 9
ENC– 10
22 OVDD
21 GND
11 12 13 14 15 16 17 18 19 20
UJ PACKAGE
40-LEAD (6mm s 6mm) PLASTIC QFN
TJMAX = 150°C, θJA = 22°C/W
EXPOSED PAD (PIN 41) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC2273CUJ#PBF
LTC2273CUJ#TRPBF
LTC2273UJ
40-Lead (6mm × 6mm) Plastic QFN
0°C to 70°C
LTC2273IUJ#PBF
LTC2273IUJ#TRPBF
LTC2273UJ
40-Lead (6mm × 6mm) Plastic QFN
–40°C to 85°C
LTC2272CUJ#PBF
LTC2272CUJ#TRPBF
LTC2272UJ
40-Lead (6mm × 6mm) Plastic QFN
0°C to 70°C
LTC2272IUJ#PBF
LTC2272IUJ#TRPBF
LTC2272UJ
40-Lead (6mm × 6mm) Plastic QFN
–40°C to 85°C
LEAD BASED FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC2273CUJ
LTC2273CUJ#TR
LTC2273UJ
40-Lead (6mm × 6mm) Plastic QFN
0°C to 70°C
LTC2273IUJ
LTC2273IUJ#TR
LTC2273UJ
40-Lead (6mm × 6mm) Plastic QFN
–40°C to 85°C
LTC2272CUJ
LTC2272CUJ#TR
LTC2272UJ
40-Lead (6mm × 6mm) Plastic QFN
0°C to 70°C
LTC2272IUJ
LTC2272IUJ#TR
LTC2272UJ
40-Lead (6mm × 6mm) 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.
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/
CONVERTER CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 4)
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Integral Linearity Error
Integral Linearity Error
Differential Analog Input (Note 5) TA = 25°C
Differential Analog Input (Note 5)
±1.2
±4
LSB
l
±1.5 ±4.5
LSB
Differential Linearity Error
Differential Analog Input
l
±0.3
±1
LSB
Offset Error
(Note 6)
l
±1
±8.5
mV
Offset Drift
±10
μV/°C
Gain Error
External Reference
l
±0.2 ±1.5
%FS
Full-Scale Drift
Internal Reference
External Reference
±30
ppm/°C
±15
ppm/°C
Transition Noise
3
LSBRMS
22732fa
2
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