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ADT7484AARMZ-RL

P1-P3P4-P6P7-P9P10-P12P13-P14
ADT7484A/ADT7486A
http://onsemi.com
4
Table 5. ELECTRICAL CHARACTERISTICS (continued)
(T
A
=T
MIN
to T
MAX
, V
CC
=V
MIN
to V
MAX
, unless otherwise noted)
Parameter UnitMaxTypMinConditions
SST Timing
Bitwise Period, t
BIT
0.495 − 500
ms
High Level Time for Logic 1, t
H1
(Note 2)
t
BIT
Defined in Speed Negotiation 0.6 t
BIT
0.75 t
BIT
0.8 t
BIT
ms
High Level Time for Logic 0, t
H0
(Note 2)
0.2 t
BIT
0.25 t
BIT
0.4 t
BIT
ms
Time to Assert SST High for
Logic 1, t
SU,
HIGH
− − 0.2 t
BIT
ms
Hold Time, t
HOLD
(Note 3) See SST Specification Rev 1.0 − − 0.5 t
BIT−M
ms
Stop Time, t
STOP
Device Responding to a Constant Low Level
Driven by Originator
1.25 t
BIT
2 t
BIT
2 t
BIT
ms
Time to Respond After a Reset,
t
RESET
− − 0.4 ms
Response Time to Speed
Negotiation After Powerup
Time after Powerup when Device Can
Participate in Speed Negotiation
− 500 −
ms
1. Guaranteed by design, not production tested.
2. Minimum and maximum bit times are relative to t
BIT
defined in the timing negotiation pulse.
3. Devices compatible with hold time specification as driven by SST originator.
ADT7484A/ADT7486A
http://onsemi.com
5
TYPICAL PERFORMANCE CHARACTERISTICS
Figure 2. SST O/P Level vs. Supply Voltage Figure 3. Supply Current vs. Temperature
Figure 4. Local Temperature Error Figure 5. SST O/P Level vs. Temperature
Figure 6. Supply Current vs. Voltage Figure 7. Remote Temperature Error
V
CC
(V)
2.6
1.20
SST O/P (V)
120 W (~10.6 mA)
2.8 3.0 3.2 3.4 3.6
1.25
1.30
1.35
1.40
1.45
1.50
1.55
270 W (~5.2 mA)
750 W (~2 mA)
TEMPERATURE (C)
−45
I
DD
(mA)
3.45
−25 −51535557595115
3.46
3.47
3.48
3.49
3.50
3.51
3.52
3.53
3.54
3.55
3.56
DEV 3
DEV 2
DEV 1
TEMPERATURE (C)
−60
TEMPERATURE ERROR (C)
−1
−40 −20 0 20 40 60 80 100 120 140
0
1
2
3
4
5
6
7
HI SPEC (V
CC
= 3.0 V)
MEAN (V
CC
= 3.3 V)
LO SPEC (V
CC
= 3.6 V)
TEMPERATURE (C)
−50
1.20
SST O/P (V)
120 W (~10.6 mA)
270 W (~5.2 mA)
750 W (~2 mA)
0 50 100 150
1.25
1.30
1.35
1.40
1.45
1.50
1.55
V
CC
(V)
2.65
I
DD
(mA)
2.9
DEV1
DEV3
DEV2
2.85 3.05 3.25 3.45 3.65
3.1
3.3
3.5
3.7
3.9
TEMPERATURE (C)
−60
TEMPERATURE ERROR (C)
−2
−40 −20 0 20 40 60 80 100 120 140
−1
0
1
2
3
4
5
6
HI SPEC (V
CC
= 3.0 V)
MEAN (V
CC
= 3.3 V)
LO SPEC (V
CC
= 3.6 V)
7
ADT7484A/ADT7486A
http://onsemi.com
6
TYPICAL PERFORMANCE CHARACTERISTICS (Cont’d)
Figure 8. Remote Temperature Error vs. PCB
Resistance
Figure 9. Temperature Error vs. Common-Mode
Noise Frequency
Figure 10. Local Temperature Error vs. Power
Supply Noise
Figure 11. Remote Temperature Error
vs. Capacitance Between D1+ and D1−
Figure 12. Temperature Error vs. Differential-Mode
Noise Frequency
Figure 13. Remote Temperature Error vs. Power
Supply Noise
D+ TO GND
DEV2_EXT2
DEV3_EXT1
DEV3_EXT2
DEV1_EXT1
DEV1_EXT2
DEV2_EXT1
DEV1_EXT1
DEV1_EXT2
DEV2_EXT1
DEV2_EXT2
DEV3_EXT1
DEV3_EXT2
D+ TO V
CC
RESISTANCE (MW)
0
ERROR (C)
−40
20 40 60 80 100
−35
−30
−25
−20
−15
−10
−5
0
5
10
15
NOISE FREQUENCY (Hz)
10k
TEMPERATURE ERROR (C)
−5
100k 1M 10M 100M 1G
0
5
10
15
20
25
30
100 mV
60 mV
40 mV
POWER SUPPLY NOISE FREQUENCY (Hz)
10k
TEMPERATURE ERROR (C)
−10
100k 1M 10M 100M 1G
−5
0
10
15
20
125 mV
5
50 mV
CAPACITANCE (nF)
0
ERROR (C)
−90
EXT2
10 20 30 40 50
−80
−70
−60
−50
−40
−30
−20
−10
0
EXT1
NOISE FREQUENCY (Hz)
10k
TEMPERATURE ERROR (C)
0
100k 1M 10M 100M 1G
1
40 mV
2
3
4
5
6
7
20 mV
10 mV
POWER SUPPLY NOISE FREQUENCY (Hz)
10k
TEMPERATURE ERROR (C)
−3
100k 1M 10M 100M 1G
125 mV
50 mV
−2
−1
0
1
2
3
4
5
P1-P3P4-P6P7-P9P10-P12P13-P14

ADT7484AARMZ-RL

Mfr. #:
Buy ADT7484AARMZ-RL
Manufacturer:
ON Semiconductor
Description:
Board Mount Temperature Sensors DIGITAL TEMP SENSOR W/SST INTERFACE
Lifecycle:
New from this manufacturer.
Delivery:
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