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參數(shù)資料
| 型號(hào)： | AD7991YRJZ-1RL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 28/28頁 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT 4CH I2C SOT23-8 |
| 產(chǎn)品變化通告： | AD7991,5,9 Offset Error Change 17/Sept/2010 |
| 設(shè)計(jì)資源： | Using AD8599 as an Ultralow Distortion Driver for the AD7991 (CN0043) |
| 標(biāo)準(zhǔn)包裝： | 10,000 |
| 位數(shù)： | 12 |
| 采樣率（每秒）： | 1M |
| 數(shù)據(jù)接口： | I²C，串行 |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 功率耗散（最大）： | 4.68mW |
| 電壓電源： | 單電源 |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | SOT-23-8 |
| 供應(yīng)商設(shè)備封裝： | SOT-23-8 |
| 包裝： | 帶卷 (TR) |
| 輸入數(shù)目和類型： | 4 個(gè)單端，單極 |
| 配用： | EVAL-AD7991EBZ-ND - BOARD EVAL FOR AD7991 |
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AD7991/AD7995/AD7999
Rev. B | 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
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
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
Standard mode
4.7
μs
tSU;STA, setup time for a repeated start condition
Fast mode
0.6
μs
High Speed mode
160
ns
Standard mode
4
μs
tHD;STA, hold time for a repeated start condition
Fast mode
0.6
μs
High speed mode
160
ns
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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