LTC2250 Просмотр технического описания (PDF) - Linear Technology
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LTC2250 Datasheet PDF : 24 Pages
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LTC2251/LTC2250
ABSOLUTE AXI U RATI GS
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
LTC2251C, LTC2250C ............................. 0°C to 70°C
LTC2251I, LTC2250I ...........................–40°C to 85°C
Storage Temperature Range ..................–65°C to 125°C
UW U
PACKAGE/ORDER I FOR ATIO
TOP VIEW
AIN+ 1
AIN– 2
32 31 30 29 28 27 26 25
24 D6
23 D5
REFH 3
22 D4
REFH 4
REFL 5
33
21 OVDD
20 OGND
REFL 6
19 D3
VDD 7
GND 8
18 D2
17 D1
9 10 11 12 13 14 15 16
ORDER PART
NUMBER
LTC2251CUH
LTC2251IUH
LTC2250CUH
LTC2250IUH
QFN PART*
MARKING
UH PACKAGE
32-LEAD (5mm × 5mm) PLASTIC QFN
TJMAX = 125°C, θJA = 34°C/W
EXPOSED PAD (PIN 33) IS GND
MUST BE SOLDERED TO PCB
2251
2250
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/
Consult LTC Marketing for parts specified with wider operating temperature ranges.
*The temperature grade is identified by a label on the shipping container.
CO VERTER CHARACTERISTICS The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 4)
PARAMETER
Resolution (No Missing Codes)
Integral Linearity Error
Differential Linearity Error
Offset Error
Gain Error
Offset Drift
Full-Scale Drift
Transition Noise
CONDITIONS
Differential Analog Input
(Note 5)
Differential Analog Input
(Note 6)
External Reference
Internal Reference
External Reference
SENSE = 1V
LTC2251
LTC2250
MIN TYP MAX MIN TYP MAX
● 10
10
● –0.6 ±0.1 0.6 –0.6 ±0.1 0.6
UNITS
Bits
LSB
● –0.6 ±0.05 0.6 –0.6 ±0.05 0.6
LSB
● –12 ±2 12 –12 ±2 12
mV
● –2.5 ±0.5 2.5 –2.5 ±0.5 2.5
%FS
±10
±10
µV/°C
±30
±30
ppm/°C
±5
±5
ppm/°C
0.08
0.08
LSBRMS
22510fa
2
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