LTC2991I(RevA) Просмотр технического описания (PDF) - Linear Technology
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LTC2991I Datasheet PDF : 32 Pages
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LTC2991
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C, VCC = 3.3V, unless otherwise noted.
SYMBOL
VDIFF(CMR)
VLSB(DIFF)
VLSB(SINGLE_ENDED)
VLSB(TEMP)
VLSB(DIODE_VOLTAGE)
TNOISE
TNOISE
RES
PARAMETER
Differential Voltage Common Mode Range
Differential Voltage LSB Weight
Single-Ended Voltage LSB Weight
Temperature LSB Weight
Diode Voltage LSB Weight
Temperature Noise
Temperature Noise
Resolution (No Missing Codes)
CONDITIONS
MIN TYP MAX
l
0
VCC
19.075
305.18
Celsius or Kelvin
0.0625
Includes Series Resistance IR Drop
38.15
Celsius or Kelvin Filter Disengaged
0.2
Celsius or Kelvin Filter Engaged
0.07
(Note 2)
l 14
UNITS
V
μV
μV
Deg
μV
°RMS
°RMS
Bits
INL
CIN
IIN(AVG)
IDC_LEAK(VIN)
PWM
Integral Nonlinearity
2.9V ≤ VCC ≤ 5.5V, VIN(CM) = 1.5V l
(Note 2)
Single-Ended
–2
Differential
–2
LSB
2
2
V1 Through V8 Input Sampling Capacitance (Note 2)
0.35
pF
V1 Through V8 Input Average Sampling
Current
(0 ≤ VN ≤ 4.9V) (Note 2)
0.6
μA
V1 Through V8 Input Leakage Current
(0 ≤ VN ≤ VCC)
l –10
10
nA
FPWM
PWM Period
DCPWM
Duty Cycle Range
SCALEPWM
0% to 100% PWM Temperature Range
www.DataSheet.net/
Measurement Delay
l 0.9
1.2
ms
l
0
99.8
%
32
Deg
TINTERNAL, TR1, TR2,
TR3, TR4
V1, V2, V3, V4, V5,
V6, V7, V8
Per Configured Temperature
Measurement
Single-Ended Voltage Measurement
V1 – V2, V3 – V4, Differential Voltage Measurement
V5 – V6, V7 – V8
VCC
VCC Measurement
Max Delay
Mode[4:0] = 11101, TINTERNAL, TR1, TR2, TR3,
TR4 VCC
V1, V3, V5, V7 OUTPUT (Remote Diode Mode Only)
l 37
46
55
ms
l 0.9
1.5
1.8
ms
l 0.9
1.5
1.8
ms
l 0.9
1.5
1.8
ms
l
277
ms
IOUT
VOUT
I2C Interface
Output Current
Output Voltage
Remote Diode Mode
l
260
350
μA
l
0
VCC
V
VADR(L)
VADR(H)
VOL1
VIL
VIH
ISDAI, SCLI
IADR(MAX)
ADR Input Low Threshold Voltage
ADR Input High Threshold Voltage
SDA Low Level Maximum Voltage
Maximum Low Level Input Voltage
Minimum High Level Input Voltage
SDA, SCL Input Current
Maximum ADR0, ADR1, ADR2 Input Current
Falling
Rising
IO = –3mA, VCC 2.9V to 5.5V
SDA and SCL Pins
SDA and SCL Pins
0 < VSDA, SCL < VCC
ADR0, ADR1 or ADR2 Tied to VCC
or GND
l
l 0.7 • VCC
l
l
l 0.7 • VCC
l
l
0.3 • VCC
V
V
0.4
V
0.3 • VCC
V
V
±1
μA
±1
μA
2991fa
3
Datasheet pdf - http://www.DataSheet4U.co.kr/
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