LTC2281 Просмотр технического описания (PDF) - Linear Technology
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LTC2281 Datasheet PDF : 24 Pages
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LTC2281
ABSOLUTE MAXIMUM RATINGS
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
LTC2281C ................................................ 0°C to 70°C
LTC2281I.............................................. –40°C to 85°C
Storage Temperature Range................... –65°C to 150°C
PIN CONFIGURATION
TOP VIEW
AINA+ 1
AINA– 2
REFHA 3
REFHA 4
REFLA 5
REFLA 6
VDD 7
CLKA 8
CLKB 9
65
VDD 10
REFLB 11
REFLB 12
REFHB 13
REFHB 14
AINB– 15
AINB+ 16
48 DA3
47 DA2
46 DA1
45 DA0
44 NC
43 NC
42 NC
41 NC
40 CLKOUT
39 DB9
38 DB8
37 DB7
36 DB6
35 DB5
34 DB4
33 DB3
UP PACKAGE
64-LEAD (9mm s 9mm) PLASTIC QFN
TJMAX = 150°C, θJA = 20°C/W
EXPOSED PAD (PIN 65) IS GND AND MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC2281CUP#PBF
LTC2281CUP#TRPBF LTC2281UP
64-Lead (9mm × 9mm) Plastic QFN
0°C to 70°C
LTC2281IUP#PBF
LTC2281IUP#TRPBF
LTC2281UP
64-Lead (9mm × 9mm) Plastic QFN
–40°C to 85°C
LEAD BASED FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC2281CUP
LTC2281CUP#TR
LTC2281UP
64-Lead (9mm × 9mm) Plastic QFN
0°C to 70°C
LTC2281IUP
LTC2281IUP#TR
LTC2281UP
64-Lead (9mm × 9mm) 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)
PARAMETER
CONDITIONS
MIN TYP MAX
UNITS
Resolution (No Missing Codes)
● 10
Bits
Integral Linearity Error
Differential Analog Input (Note 5)
● –0.7 ±0.1 0.7
LSB
Differential Linearity Error
Differential Analog Input
● –0.7 ±0.1 0.7
LSB
Offset Error
(Note 6)
● –12 ±2
12
mV
Gain Error
External Reference
● –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
2281fb
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