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AD7991 датащи(PDF) 9 Page - Analog Devices

номер детали AD7991
подробное описание детали  4-Channel, 12-/10-/8-Bit ADC with I2C-Compatible Interface in 8-Lead SOT-23
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производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
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AD7991 датащи(HTML) 9 Page - Analog Devices

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AD7991/AD7995/AD7999
Rev. A | Page 9 of 28
I2C TIMING SPECIFICATIONS
Guaranteed by initial characterization. All values were measured with the input filtering enabled. CB refers to the capacitive load on the bus line,
with tr and tf measured between 0.3 VDD and 0.7 VDD (see Figure 2). Unless otherwise noted, VDD = 2.7 V to 5.5 V and TA = TMIN to TMAX.
Table 5.
Limit at tMIN, tMAX
Parameter
Conditions
Min
Typ
Max
Unit
Description
fSCL1
Standard mode
100
kHz
Serial clock frequency
Fast mode
400
kHz
High speed mode
CB = 100 pF maximum
3.4
MHz
CB = 400 pF maximum
1.7
MHz
t11
Standard mode
4
μs
tHIGH, SCL high time
Fast mode
0.6
μs
High speed mode
CB = 100 pF maximum
60
ns
CB = 400 pF maximum
120
ns
t21
Standard mode
4.7
μs
tLOW, SCL low time
Fast mode
1.3
μs
High speed mode
CB = 100 pF maximum
160
ns
CB = 400 pF maximum
320
ns
t31
Standard mode
250
ns
tSU;DAT, data setup time
Fast mode
100
ns
High speed mode
10
ns
t41, 2
Standard mode
0
3.45
μs
tHD;DAT, data hold time
Fast mode
0
0.9
μs
High Speed mode
CB = 100 pF maximum
0
703
ns
CB = 400 pF maximum
0
150
ns
t51
Standard mode
4.7
μs
tSU;STA, setup time for a repeated start condition
Fast mode
0.6
μs
High Speed mode
160
ns
t61
Standard mode
4
μs
tHD;STA, hold time for a repeated start condition
Fast mode
0.6
μs
High speed mode
160
ns
t71
Standard mode
4.7
μs
tBUF, bus-free time between a stop and a start condition
Fast mode
1.3
μs
t81
Standard mode
4
μs
tSU;STO, setup time for a stop condition
Fast mode
0.6
μs
High speed mode
160
ns
t9
Standard mode
1000
ns
tRDA, rise time of the SDA signal
Fast mode
20 + 0.1 CB
300
ns
High speed mode
CB = 100 pF maximum
10
80
ns
CB = 400 pF maximum
20
160
ns


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Аналогичное описание - AD7991_09

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logo
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