參數(shù)資料
型號(hào)： ADS7823
英文描述： CONN, M HDR 2X20 NO LATCH
中文描述： 12位，采樣A / D轉(zhuǎn)換器，帶有I2C？？接口
文件頁數(shù)： 5/15頁
文件大小： 275K
代理商： ADS7823
ADS7823
SBAS180B
5
TIMING CHARACTERISTICS
(1)
At T
A
=
–
40
°
C to +85
°
C, +V
DD
= +2.7V, unless otherwise noted.
PARAMETER
SYMBOL
CONDITIONS
MIN
MAX
UNITS
SCL Clock Frequency
f
SCL
Standard Mode
Fast Mode
100
400
3.4
1.7
kHz
kHz
MHz
MHz
High-Speed Mode, C
B
= 100pF max
High-Speed Mode, C
B
= 400pF max
Bus Free Time Between a STOP and
START Condition
t
BUF
Standard Mode
Fast Mode
4.7
1.3
μ
s
μ
s
Hold Time (Repeated) START
Condition
t
HD
;
STA
Standard Mode
Fast Mode
High-Speed Mode
4.0
600
160
μ
s
ns
ns
LOW Period of the SCL Clock
t
LOW
Standard Mode
Fast Mode
4.7
1.3
160
320
μ
s
μ
s
ns
ns
High-Speed Mode, C
B
= 100pF max
(2)
High-Speed Mode, C
B
= 400pF max
(2)
HIGH Period of the SCL Clock
t
HIGH
Standard Mode
Fast Mode
4.0
600
60
120
μ
s
ns
ns
ns
High-Speed Mode, C
B
= 100pF max
(2)
High-Speed Mode, C
B
= 400pF max
(2)
Setup Time for a Repeated START
Condition
t
SU
;
STA
Standard Mode
Fast Mode
High-Speed Mode
4.7
600
160
μ
s
ns
ns
Data Setup Time
t
SU
;
DAT
Standard Mode
Fast Mode
High-Speed Mode
250
100
10
ns
ns
ns
Data Hold Time
t
HD
;
DAT
Standard Mode
Fast Mode
0
0
3.45
0.9
70
150
μ
s
μ
s
ns
ns
High-Speed Mode, C
B
= 100pF max
(2)
High-Speed Mode, C
B
= 400pF max
(2)
0
(3)
0
(3)
Rise Time of SCL Signal
t
RCL
Standard Mode
Fast Mode
1000
300
40
80
ns
ns
ns
ns
20 + 0.1C
B
10
20
High-Speed Mode, C
B
= 100pF max
(2)
High-Speed Mode, C
B
= 400pF max
(2)
Rise Time of SCL Signal After a
Repeated START Condition and
After an Acknowledge Bit
t
RCL1
Standard Mode
Fast Mode
1000
300
80
160
ns
ns
ns
ns
20 + 0.1C
B
10
20
High-Speed Mode, C
B
= 100pF max
(2)
High-Speed Mode, C
B
= 400pF max
(2)
Fall Time of SCL Signal
t
FCL
Standard Mode
Fast Mode
300
300
40
80
ns
ns
ns
ns
20 + 0.1C
B
10
20
High-Speed Mode, C
B
= 100pF max
(2)
High-Speed Mode, C
B
= 400pF max
(2)
Rise Time of SDA Signal
t
RDA
Standard Mode
Fast Mode
1000
300
80
160
ns
ns
ns
ns
20 + 0.1C
B
10
20
High-Speed Mode, C
B
= 100pF max
(2)
High-Speed Mode, C
B
= 400pF max
(2)
Fall Time of SDA Signal
t
FDA
Standard Mode
Fast Mode
300
300
80
160
ns
ns
ns
ns
20 + 0.1C
B
10
20
High-Speed Mode, C
B
= 100pF max
(2)
High-Speed Mode, C
B
= 400pF max
(2)
Setup Time for STOP Condition
t
SU
;
STO
Standard Mode
Fast Mode
High-Speed Mode
4.0
600
160
μ
s
ns
ns
Capacitive Load for SDA and SCL
Line
C
B
400
pF
Pulse Width of Spike Suppressed
t
SP
Fast Mode
50
ns
High-Speed Mode
10
ns
Noise Margin at the HIGH Level for
Each Connected Device (Including
Hysteresis)
Standard Mode
Fast Mode
High-Speed Mode
V
NH
0.2V
DD
V
Noise Margin at the LOW Level for
Each Connected Device (Including
Hysteresis)
Standard Mode
Fast Mode
High-Speed Mode
V
NL
0.1V
DD
V
NOTES: (1) All values referred to V
and V
levels. (2) For bus line loads C
between 100pF and 400pF the timing parameters must be linearly interpolated.
(3) A device must internally provide a data hold time to bridge the undefined part between V
and V
IL
of the falling edge of the SCLH signal. An input circuit with
a threshold as low as possible for the falling edge of the SCLH signal minimizes this hold time.
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參數(shù)描述
ADS7823-28EVM 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 ADS7823-28 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V
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ADS7823E/250 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit Low Power I2C Serial Sampling RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS7823E/250G4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit Low Power I2C Serial Sampling RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS7823E/2K5 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit Low Power I2C Serial Sampling RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
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