LTC2990CMS Просмотр технического описания (PDF) - Linear Technology
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LTC2990CMS Datasheet PDF : 24 Pages
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LTC2990
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
PARAMETER
CONDITIONS
MIN
TYP
MAX UNITS
Res
Resolution (No Missing Codes)
(Note 2)
l
14
Bits
INL
Integral Nonlinearity
2.9V ≤ VCC ≤ 5.5V, VIN(CM) = 1.5V l
(Note 2)
Single-Ended
–2
Differential
–2
2
LSB
2
LSB
CIN
V1 Through V4 Input Sampling
(Note 2)
Capacitance
0.35
pF
IIN(AVG)
V1 Through V4 Input Average Sampling 0V ≤ VN ≤ 3V (Note 2)
Current
0.6
µA
IDC_LEAK(VIN)
V1 Through V4 Input Leakage Current
Measurement Delay
0V ≤ VN ≤ VCC
l –10
10
nA
TINT , TR1, TR2
Per Configured 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
VCC
VCC Measurement
Max Delay
Mode[4:0] = 11101, TINT , TR1, TR2, VCC
V1, V3 Output (Remote Diode Mode Only)
(Note 2)
(Note 2)
l 1.2
1.5
1.8
ms
l
167
ms
IOUT
VOUT
I2C Interface
Output Current
Output Voltage
Remote Diode Mode
l
260
350
µA
l
0
VCC
V
VADR(L)
ADR0, ADR1 Input Low Threshold Voltage Falling
l
VADR(H)
ADR0, ADR1 Input High Threshold Voltage Rising
l 0.7 • VCC
VOL1
SDA Low Level Maximum Voltage
IO = –3mA, VCC = 2.9V to 5.5V
l
VIL
Maximum Low Level Input Voltage
SDA and SCL Pins
l
VIH
Minimum High Level Input Voltage
SDA and SCL Pins
l 0.7 • VCC
ISDAI,SCLI
SDA, SCL Input Current
0 < VSDA,SCL < VCC
l
IADR(MAX)
Maximum ADR0, ADR1 Input Current
I2C Timing (Note 2)
ADR0 or ADR1 Tied to VCC or GND l
0.3 • VCC
V
V
0.4
V
0.3 • VCC
V
V
±1
µA
±1
µA
fSCL(MAX)
tLOW
tHIGH
tBUF(MIN)
Maximum SCL Clock Frequency
Minimum SCL Low Period
Minimum SCL High Period
Minimum Bus Free Time Between Stop/
Start Condition
400
kHz
1.3
µs
600
ns
1.3
µs
tHD,STA(MIN)
Minimum Hold Time After (Repeated)
Start Condition
600
ns
tSU,STA(MIN)
Minimum Repeated Start Condition Set-Up
Time
600
ns
tSU,STO(MIN)
tHD,DATI(MIN)
tHD,DATO(MIN)
tSU,DAT(MIN)
tSP(MAX)
CX
Minimum Stop Condition Set-Up Time
Minimum Data Hold Time Input
Minimum Data Hold Time Output
Minimum Data Set-Up Time Input
Maximum Suppressed Spike Pulse Width
SCL, SDA Input Capacitance
600
ns
0
ns
300
900
ns
100
ns
50
250
ns
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.
Note 2: Guaranteed by design and not subject to test.
Note 3: Integral nonlinearity is defined 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.
Note 4: Trimmed to an ideality factor of 1.004 at 25°C. Remote diode
temperature drift (TUE) verified 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.
2990f
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