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參數(shù)資料
| 型號： | G766 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | Remote Temperature Sensor with SMBus Serial Interface |
| 中文描述： | 遠(yuǎn)程溫度傳感器，帶有SMBus串行接口 |
| 文件頁數(shù)： | 3/13頁 |
| 文件大小： | 248K |
| 代理商： | G766 |
Ver 1.0
Dec 11, 2001
TEL: 886-3-5788833
http://www.gmt.com.tw
3
Global Mixed-mode Technology Inc.
Electrical Characteristics
(continued)
(Vcc = + 3.3V, T
A
= 0 to +85°C, unless otherwise noted.)
PARAMETER
SMBus Interface
Logic Input High Voltage
G766
CONDITIONS
MIN TYP MAX UNITS
STBY
, SMBCLK, SMBDATA; Vcc = 3V to 5.5V
2.2
V
Logic Input Low Voltage
Logic Output Low Sink Current
ALERT
Output High Leakage Current
Logic Input Current
SMBus Input Capacitance
SMBus Clock Frequency
SMBCLK Clock Low Time
SMBCLK Clock High Time
SMBus Start-Condition Setup Time
SMBus Repeated Start-Condition Setup Time t
SU :
STA ,
90% to 90% points
SMBus Start-Condition Hold Time
SMBus Start-Condition Setup Time
SMBus Data Valid to SMBCLK Rising-Edge
Time
SMBus Data-Hold Time
SMBCLK Falling Edge to SMBus Data-Valid
Time
STBY
, SMBCLK, SMBDATA; Vcc = 3V to 5.5V
0.8
1
1
100
V
mA
μA
μA
pF
kHz
μs
μs
μs
ns
μs
μs
ALERT
, SMBDATA forced to 0.4V
ALERT
forced to 5.5V
Logic inputs forced to Vcc or GND
SMBCLK, SMBDATA
(Note 4)
t
LOW
, 10% to 10% points
t
HIGH
, 90% to 90% points
6
-1
DC
4.7
4
4.7
500
4
4
5
t
HD: STA ,
10% of SMBDATA to 90% of SMBCLK
t
SD: STO ,
90% of SMBDATA to 10% of SMBDATA
t
SU: DAT ,
10% or 90% of SMBDATA to 10% of
SMBCLK
t
HD : DAT
(Note 5)
800
ns
0
μs
Master clocking in data
1
μs
Electrical Characteristics
(Vcc = + 3.3V, T
A
= -5.5 to + 125°C, unless otherwise noted.) (Note 6)
PARAMETER
ADC and power supply
Temperature Resolution(Note 1)
Initial Temperature Error, Local
Diode ( Note 2)
Temperature Error, Remote Diode
(Notds2 and 3)
Supply-Voltage Range
Conversion Time
Conversion Rate Timing Error
SMBus Interface
CONDITIONS
MIN TYP MAX UNITS
Monotonicity guaranteed
T
A
= +60°C to +100°C
T
A
= -55°C to +125°C
T
R
= +60°C to +100°C
T
R
= -55°C to +125°C
From stop bit to conversion complete
Auto-convert mode
8
-2
-3
-3
-5
3.0
-25
Bits
2
3
3
5
5.5
25
°C
°C
V
ms
%
62
Vcc = 3V
2.2
2.4
6
-2
Logic Input High Voltage
STBY, SMBCLK, SMBDATA Vcc = 5.5V
STBY, SMBCLK, SMBDATA; Vcc = 3V to 5.5V
ALERT, SMBDATA forced to 0.4V
ALERT forced to 5.5V
Logic inputs forced to Vcc or GND
V
Logic Input Low Voltage
Logic Output Low Sink Current
ALERT
Output High Leakage Current
Logic Input Current
0.8
1
2
V
mA
μA
μA
Note1 :
Guaranteed but not 100% tested.
Note2 :
Quantization error is not included in specifications for temperature accuracy. For example, if the G766 de-
vice temperature is exactly +66.7°C, or +68°C (due to the quantization error plus the +1/2°C offset used for
rounding up) and still be within the guaranteed ±1°C error limits for the +60°C to 100°C temperature range.
See Table2.
Note3 :
A remote diode is any diode-connected transistor from Table1. T
R
is the junction temperature of the remote
of the remote diode. See Remote Diode Selection for remote diode forward voltage requirements.
Note4 :
The SMBus logic block is a static design that works with clock frequencies down to DC. While slow operation is
possible, it violates the 10kHz minimum clock frequency and SMBus specifications, and may monopolize the bus.
Note5 :
Note that a transition must internally provide at least a hold time in order to bridge the undefined region
(300ns max) of SMBCLK’s falling edge.
Note6 :
Specifications from -55°C to +125°C are guaranteed by design, not production tested.
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