参数资料
型号: AD7992BRMZ-0
厂商: Analog Devices Inc
文件页数: 26/29页
文件大小: 0K
描述: IC ADC 12BIT 2CHAN I2C 10MSOP
标准包装: 50
位数: 12
采样率(每秒): 79k
数据接口: I²C,串行
转换器数目: 1
功率耗散(最大): 2.2mW
电压电源: 单电源
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 10-TFSOP,10-MSOP(0.118",3.00mm 宽)
供应商设备封装: 10-MSOP
包装: 管件
输入数目和类型: 2 个单端,单极
AD7992
Rev. 0 | Page 5 of 28
I2C TIMING SPECIFICATIONS
Guaranteed by initial characterization. All values measured with the input filtering enabled. CB refers to the capacitive load on the bus
line. tr and tf measured between 0.3 VDD and 0.7 VDD.
High speed mode timing specifications apply to the AD7992-1 only. Standard and fast mode timing specifications apply to both the
AD7992-0 and the AD7992-1. See Figure 2. Unless otherwise noted, VDD = 2.7 V to 5.5 V; REFIN = 2.5 V to VDD; TA =TMIN to TMAX.
Table 3.
Limit at TMIN, TMAX
Parameter
Conditions
Min
Max
Unit
Description
fSCL
Standard mode
100
kHz
Serial clock frequency
Fast mode
400
kHz
High speed mode
CB = 100 pF max
3.4
MHz
CB = 400 pF max
1.7
MHz
t1
Standard mode
4
s
tHIGH, SCL high time
Fast mode
0.6
s
High speed mode
CB = 100 pF max
60
ns
CB = 400 pF max
120
ns
t2
Standard mode
4.7
s
tLOW, SCL low time
Fast mode
1.3
s
High speed mode
CB = 100 pF max
160
ns
CB = 400 pF max
320
ns
t3
Standard mode
250
ns
tSU;DAT, data setup time
Fast mode
100
ns
High speed mode
10
ns
t41
Standard mode
0
3.45
s
tHD;DAT, data hold time
Fast mode
0
0.9
s
High Speed mode
CB = 100 pF max
0
ns
CB = 400 pF max
0
150
ns
t5
Standard mode
4.7
s
tSU;STA, setup time for a repeated START condition
Fast mode
0.6
s
High Speed mode
160
ns
t6
Standard mode
4
s
tHD;STA, hold time for a repeated START condition
Fast mode
0.6
s
High speed mode
160
ns
t7
Standard mode
4.7
s
tBUF, bus free time between a STOP and a START condition
Fast mode
1.3
s
t8
Standard mode
4
s
tSU;STO, setup time for STOP condition
Fast mode
0.6
s
High speed mode
160
ns
t9
Standard mode
1000
ns
tRDA, rise time of SDA signal
Fast mode
20 + 0.1 CB
300
ns
High speed mode
CB = 100 pF max
10
80
ns
CB = 400 pF max
20
160
ns
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