LTC2945IMS-1-PBF データシートの表示（PDF） - Linear Technology
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LTC2945IMS-1-PBF Datasheet PDF : 32 Pages
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LTC2945
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VDD is from 4V to 80V unless otherwise noted. (Note 2)
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
ADC
RES
Resolution (No missing codes)
(Note 5)
l 12
Bits
VFS
Full-Scale Voltage
ΔSENSE (Note 7)
VIN
ADIN
102.4
mV
102.4
V
2.048
V
LSB
LSB Step Size
ΔSENSE
VIN
ADIN
25
μV
25
mV
0.5
mV
TUE
Total Unadjusted Error (Note 6)
ΔSENSE
VIN
ADIN
l
±0.75
%
l
±0.75
%
l
±0.75
%
VOS
Offset Error
ΔSENSE
VIN
ADIN
l
±3.1
LSB
l
±1.5
LSB
l
±1.1
LSB
INL
Integral Nonlinearity
ΔSENSE
VIN
ADIN
l
±3
LSB
l
±2
LSB
l
±2
LSB
σT
Transition Noise
fCONV
tCONV
Conversion Rate (Continuous Mode)
Conversion Time (Snapshot Mode)
RADIN
ADIN Pin Input Resistance
IADIN
ADIN Pin Input Current
I2C INTERFACE (VDD = 48V)
VADR(H)
ADR0, ADR1 Input High Threshold
ΔSENSE
VIN
ADIN
ΔSENSE
VIN, ADIN
VDD = 48V, ADIN = 3V
VDD = 48V, ADIN = 3V
1.2
μVRMS
0.3
mVRMS
10
μVRMS
l
6
7.5
9
Hz
l 60
66
72
ms
l 30
33
36
ms
l
3
10
MΩ
l
±1
μA
l 2.1
2.4
2.7
V
VADR(L)
IADR(IN)
IADR(IN,Z)
VOD(OL)
ISDA,SCL(IN)
VSDA,SCL(TH)
VSDA,SCL(CL)
IALERT(IN)
ADR0, ADR1 Input Low Threshold
ADR0, ADR1 Input Current
Allowable Leakage When Open
SDAO, SDAO, ALERT Output Low Voltage
SDAI, SDAO, SDAO, SCL Input Current
SDAI, SCL Input Threshold
SDAI, SCL Clamp Voltage
ALERT Input Current
ADR0, ADR1 = 0V, 3V
ISDAO, ISDAO, IALERT = 8mA
SDAI, SDAO, SDAO, SCL = 5V
ISDAI, ISCL = 3mA
ALERT = 5V
l 0.3
0.6
0.9
V
l
±13
μA
l
±7
μA
l
0.15
0.4
V
l
0
±1
μA
l 1.5
1.9
2.2
V
l 5.9
6.4
6.9
V
l
0
±1
μA
2945f
4
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