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參數(shù)資料
| 型號： | TLC1550IFK |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 10-BIT ANALOG-TO-DIGITAL CONVERTERS WITH PARALLEL OUTPUTS |
| 中文描述： | 10位模擬數(shù)字轉(zhuǎn)換器與并行輸出 |
| 文件頁數(shù)： | 7/9頁 |
| 文件大?。?/td> | 139K |
| 代理商： | TLC1550IFK |
TLC1550I, TLC1550M TLC1551I
10-BIT ANALOG-TO-DIGITAL CONVERTERS
WITH PARALLEL OUTPUTS
SLAS043C – MAY 1991 – REVISED MARCH 1995
2–7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
simplified analog input analysis
Using the circuit in Figure 2, the time required to charge the analog input capacitance from 0 to V
S
within 1/2
LSB can be derived as follows:
The capacitance charging voltage is given by
(1)
where
R
t
= R
s
+ r
i
VC
VS1–e–tcRtCi
The final voltage to 1/2 LSB is given by
(2)
V
C
(1/2 LSB) = V
S
– (V
S
/1024)
Equating equation 1 to equation 2 and solving for time t
c
gives
(3)
and
t
c
(1/2 LSB) = R
t
×
C
i
×
ln(1024)
(4)
VS
VS512
VS1–e–tcRtCi
Therefore, with the values given, the time for the analog input signal to settle is
(5)
t
c
(1/2 LSB) = (R
s
+ 1 k
)
×
60 pF
×
ln(1024)
This time must be less than the converter sample time shown in the timing diagrams.
Rs
ri
VS
VC
Ci
50 pF MAX
1 k
MAX
Driving Source
TLC1550/1
VI
VI= Input voltage at AIN
VS= External driving source voltage
Rs= Source resistance
ri = Input resistance
Ci= Input capacitance
Driving source requirements:
Noise and distortion for the source must be equivalent to the
resolution of the converter.
Rs must be real at the input frequency.
Figure 2. Input Circuit Including the Driving Source
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TLC1551IFK | 10-BIT ANALOG-TO-DIGITAL CONVERTERS WITH PARALLEL OUTPUTS |
| TLC1550IJ | 10-BIT ANALOG-TO-DIGITAL CONVERTERS WITH PARALLEL OUTPUTS |
| TLC1550I | 10-BIT ANALOG-TO-DIGITAL CONVERTERS WITH PARALLEL OUTPUTS |
| TLC1550M | 10-BIT ANALOG-TO-DIGITAL CONVERTERS WITH PARALLEL OUTPUTS |
| TLC1551I | 10-BIT ANALOG-TO-DIGITAL CONVERTERS WITH PARALLEL OUTPUTS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TLC1550IFN | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 164 kSPS Parallel Out 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 |
| TLC1550IFNG4 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10B 164kSPS ADC 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 |
| TLC1550IFNR | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 164 kSPS Parallel Out 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 |
| TLC1550IJ | 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-BIT ANALOG-TO-DIGITAL CONVERTERS WITH PARALLEL OUTPUTS |
| TLC1550INW | 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-BIT ANALOG-TO-DIGITAL CONVERTERS WITH PARALLEL OUTPUTS |
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