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ADM1021A датащи(PDF) 2 Page - Analog Devices

номер детали ADM1021A
подробное описание детали  Low-Cost Microprocessor System Temperature Monitor
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производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
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ADM1021A датащи(HTML) 2 Page - Analog Devices

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–2–
REV. D
ADM1021A–SPECIFICATIONS (T
A = TMIN to TMAX
1, V
DD = 3.0 V to 3.6 V, unless otherwise noted.)
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
POWER SUPPLY AND ADC
Temperature Resolution
1
°C
Guaranteed No Missed Codes
Temperature Error, Local Sensor
±1
°C
–3
+3
°C
Temperature Error, Remote Sensor
–3
+3
°CT
A = 60
°C to 100°C
–5
+5
°C
Supply Voltage Range
3
3.6
V
Note 2
Undervoltage Lockout Threshold
2.5
2.7
2.95
V
VDD Input, Disables ADC, Rising Edge
Undervoltage Lockout Hysteresis
25
mV
Power-On Reset Threshold
0.9
1.7
2.2
V
VDD, Falling Edge
3
POR Threshold Hysteresis
50
mV
Standby Supply Current
1
5
µAV
DD = 3.3 V, No SMBus Activity
4
µA
SCLK at 10 kHz
Average Operating Supply Current
130
200
µA
0.25 Conversions/Sec Rate
Autoconvert Mode, Averaged Over 4 Seconds
225
330
µA2 Conversions/Sec Rate
Conversion Time
65
115
170
ms
From Stop Bit to Conversion Complete
(Both Channels)
D+ Forced to D– + 0.65 V
Remote Sensor Source Current
120
205
300
µAHigh Level3
712
16
µALow Level3
D-Source Voltage
0.7
V
Address Pin Bias Current (ADD0, ADD1)
50
µAMomentary at Power-On Reset
SMBUS INTERFACE
Logic Input High Voltage, VIH
2.2
V
VDD = 3 V to 5.5 V
STBY, SCLK, SDATA
Logic Input Low Voltage, VIL
0.8
V
VDD = 3 V to 5.5 V
STBY, SCLK, SDATA
SMBus Output Low Sink Current
6
mA
SDATA Forced to 0.6 V
ALERT Output Low Sink Current
1
mA
ALERT Forced to 0.4 V
Logic Input Current, IIH, IIL
–1
+1
µA
SMBus Input Capacitance, SCLK, SDATA
5
pF
SMBus Clock Frequency
100
kHz
SMBus Clock Low Time, tLOW
4.7
µst
LOW between 10% Points
SMBus Clock High Time, tHIGH
4
µstHIGH between 90% Points
SMBus Start Condition Setup Time, tSU:STA
4.7
µs
SMBus Repeat Start Condition
250
ns
Between 90% and 90% Points
Setup Time, tSU:STA
SMBus Start Condition Hold Time, tHD:STA
4
µsTime from 10% of SDATA to 90% of SCLK
SMBus Stop Condition Setup Time, tSU:STO
4
µsTime from 90% of SCLK to 10% of SDATA
SMBus Data Valid to SCLK
250
ns
Time from 10% or 90% of SDATA to 10%
Rising Edge Time, tSU:DAT
of SCLK
SMBus Data Hold Time, tHD:DAT
0
µs
SMBus Bus Free Time, tBUF
4.7
µsBetween Start/Stop Conditions
SCLK Falling Edge to SDATA
1
µsMaster Clocking in Data
Valid Time, tVD, DAT
NOTES
1T
MAX = 100
°C; T
MIN = 0
°C.
2Operation at V
DD = 5 V guaranteed by design, not production tested.
3Guaranteed by design, not production tested.
Specifications subject to change without notice.


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