参数资料
型号: ADM1034ARQZ-REEL
厂商: ANALOG DEVICES INC
元件分类: 模拟信号调理
英文描述: SPECIALTY ANALOG CIRCUIT, PDSO16
封装: LEAD FREE, MO-137AB, QSOP-16
文件页数: 36/40页
文件大小: 1318K
代理商: ADM1034ARQZ-REEL
ADM1034
Rev. 0 | Page 5 of 40
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
ANALOG INPUTS
(LOCATION, REF)
Input Resistance
80
125
160
k
AGTL + INPUT
(THERM)
Input High Level
0.75 ×
REF
V
Input Low Level
0.4
V
TACHOMETER ACCURACY
Fan Speed Measurement Accuracy
±4
%
SERIAL BUS TIMING4
Clock Frequency, fSCLK
400
kHz
Glitch Immunity, tSW
50
ns
Bus Free Time, tBUF
1.3
s
Start Setup Time, tSU:STA
0.6
s
Start Hold Time, tHD:STA
0.6
s
Stop Condition Setup Time tSU:STO
0.6
s
SCL Low Time, tLOW
1.3
s
SCL High Time, tHIGH
0.6
s
SCL, SDA Rise Time, tr
1000
ns
SCL, SDA Fall Time, tf
300
ns
Data Setup Time, tSU:DAT
100
ns
Detect Clock Low Timeout, tTIMEOUT
25
35
ms
See Note 5
1 Typicals are at TA = 25°C and represent most likely parametric norm. Standby current typ is measured with VCC = 3.3 V. Timing specifications are tested at logic levels of
VIL = 0.8 V for a falling edge and VIH = 2.1 V for a rising edge.
2 Operation at 5.5 V is guaranteed by design, not production tested.
3 Recommend use of 100 k pull-up resistors for all open-drain outputs from the ADM1034.
4 Guaranteed by design, not production tested.
5 SMBus timeout disabled by default. See the
section for more information.
SMBUS
P
S
tLOW
tR
tF
tHD:STA
tHD:DAT
tSU:DAT
tSU:STA
tHD:STA
tSU:STO
tHIGH
SCL
PS
SDA
tBUF
04918-0-002
Figure 2. Serial Bus Timing Diagram
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