Техническая Спецификация для Linear Technology DC1338B - LTC2990 | I²C Temperature, Current & Voltage Monitor(requires DC590) DC1338B DC1338B
Модели
DC1338B
LTC2990
3
2990fc
ELECTRICAL CHARACTERISTICS
The
l
denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. V
CC
= 3.3V, unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Res
Resolution (No Missing Codes)
(Note 2)
l
14
Bits
INL
Integral Nonlinearity
2.9V ≤ V
CC
≤ 5.5V, V
IN(CM)
= 1.5V
(Note 2)
Single-Ended
Differential
Single-Ended
Differential
l
–2
–2
–2
2
2
2
LSB
LSB
LSB
C
IN
V1 Through V4 Input Sampling
Capacitance
Capacitance
(Note 2)
0.35
pF
I
IN(AVG)
V1 Through V4 Input Average Sampling
Current
Current
0V ≤ V
N
≤ 3V (Note 2)
0.6
μA
I
DC_LEAK(VIN)
V1 Through V4 Input Leakage Current
0V ≤ V
N
≤ V
CC
l
–10
10
nA
Measurement Delay
T
T
INT
, T
R1
, T
R2
Per Confi gured Temperature Measurement (Note 2)
l
37
46
55
ms
V1, V2, V3, V4
Single-Ended Voltage Measurement
(Note 2) Per Voltage, Two Minimum
l
1.2
1.5
1.8
ms
V1 – V2, V3 – V4
Differential Voltage Measurement
(Note 2)
l
1.2
1.5
1.8
ms
V
CC
V
CC
Measurement
(Note 2)
l
1.2
1.5
1.8
ms
Max Delay
Mode[4:0] = 11101, T
INT
, T
R1
, T
R2
, V
CC
(Note 2)
l
167
ms
V1, V3 Output (Remote Diode Mode Only)
I
I
OUT
Output Current
Remote Diode Mode
l
260
350
μA
V
OUT
Output Voltage
l
0
V
CC
V
I
2
C Interface
V
ADR(L)
ADR0, ADR1 Input Low Threshold Voltage Falling
l
0.3 • V
CC
V
V
ADR(H)
ADR0, ADR1 Input High Threshold Voltage Rising
l
0.7 • V
CC
V
V
OL1
SDA Low Level Maximum Voltage
I
O
= –3mA, V
CC
= 2.9V to 5.5V
l
0.4
V
V
IL
Maximum Low Level Input Voltage
SDA and SCL Pins
l
0.3 • V
CC
V
V
IH
Minimum High Level Input Voltage
SDA and SCL Pins
l
0.7 • V
CC
V
I
SDAI,SCLI
SDA, SCL Input Current
0 < V
SDA
,
SCL
< V
CC
l
±1
μA
I
ADR(MAX)
Maximum ADR0, ADR1 Input Current
ADR0 or ADR1 Tied to V
CC
or GND
l
±1
μA
I
2
C Timing (Note 2)
f
SCL(MAX)
Maximum SCL Clock Frequency
400
kHz
t
LOW
Minimum SCL Low Period
1.3
μs
t
HIGH
Minimum SCL High Period
600
ns
t
BUF(MIN)
Minimum Bus Free Time Between Stop/
Start Condition
Start Condition
1.3
μs
t
HD,STA(MIN)
Minimum Hold Time After (Repeated)
Start Condition
Start Condition
600
ns
t
SU,STA(MIN)
Minimum Repeated Start Condition Set-Up
Time
Time
600
ns
t
SU,STO(MIN)
Minimum Stop Condition Set-Up Time
600
ns
t
HD,DATI(MIN)
Minimum Data Hold Time Input
0
ns
t
HD,DATO(MIN)
Minimum Data Hold Time Output
300
900
ns
t
SU,DAT(MIN)
Minimum Data Set-Up Time Input
100
ns
t
SP(MAX)
Maximum Suppressed Spike Pulse Width
50
250
ns
C
X
SCL, SDA Input Capacitance
10
pF
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: Guaranteed by design and not subject to test.
Note 3: Integral nonlinearity is defi ned as the deviation of a code from a
straight line passing through the actual endpoints of the transfer curve.
The deviation is measured from the center of the quantization band.
straight line passing through the actual endpoints of the transfer curve.
The deviation is measured from the center of the quantization band.
Note 4: Trimmed to an ideality factor of 1.004 at 25°C. Remote diode
temperature drift (TUE) verifi ed at diode voltages corresponding to
the temperature extremes with the LTC2990 at 25°C. Remote diode
temperature drift (TUE) guaranteed by characterization over the LTC2990
operating temperature range.
temperature drift (TUE) verifi ed at diode voltages corresponding to
the temperature extremes with the LTC2990 at 25°C. Remote diode
temperature drift (TUE) guaranteed by characterization over the LTC2990
operating temperature range.