- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383952 > TLC1518PW (Texas Instruments, Inc.) 5-V, 10-BIT, 400 KSPS, 4/8 CHANNEL, LOW POWER, SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTO POWER DOWN PDF資料下載
參數(shù)資料
| 型號： | TLC1518PW |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 5-V, 10-BIT, 400 KSPS, 4/8 CHANNEL, LOW POWER, SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTO POWER DOWN |
| 中文描述： | 5五，10位400 ksps的，4 / 8通道，低功耗，串行模數(shù)位自動開機和下變頻器 |
| 文件頁數(shù)： | 33/40頁 |
| 文件大小： | 609K |
| 代理商： | TLC1518PW |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁當(dāng)前第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁
TLC1514, TLC1518
5-V, 10-BIT, 400 KSPS, 4/8 CHANNEL, LOW POWER,
SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTO POWER DOWN
SLAS252 – DECEMBER 1999
33
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
simplified analog input analysis
Using the equivalent circuit in Figure 39, the time required to charge the analog input capacitance from 0 to VS
within 1/2 LSB can be derived as follows.
The capacitance charging voltage is given by:
Vc
Vs
1–EXP
–tc
Rt
Ci
Where
Rt = Rs + Zi
tc = Cycle time
(1)
The input impedance Zi is 0.5 k
at 5 V. The final voltage to 1/2 LSB is given by:
VC (1 2 LSB)
VS–
VS
2048
(2)
Equating equation 1 to equation 2 and solving for cycle time tc gives:
Vs–
VS
2048
Vs
1–EXP
–tc
Rt
Ci
(3)
and time to change to 1/2 LSB (minimum sampling time) is:
tch (1 2 LSB)
Rt
Ci
In(2048)
Where
In(2048) = 7.625
Therefore, with the values given, the time for the analog input signal to settle is:
tch (1 2 LSB)
(Rs
0.5 k )
Ci
In(2048)
(4)
This time must be less than the converter sample time shown in the timing diagrams. This is 12
×
SCLKs (if the
sampling mode is short normal sampling mode).
tch (1 2 LSB)
12
1
f(SCLK)
(5)
Therefore the maximum SCLK frequency is:
max f(SCLK)
12
tch 1 2 LSB
12
[In(2048)
Rt
Ci]
(6)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TLC1514PW | 5-V, 10-BIT, 400 KSPS, 4/8 CHANNEL, LOW POWER, SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTO POWER DOWN |
| TLC1518D | CAP METAL POLYPRO 1.6UF 400V 5% |
| TLC2252MFK | Advanced LinCMOSE RAIL-TO-RAIL VERY LOW-POWER OPERATIONAL AMPLIFIERS |
| TLC2254MFK | Advanced LinCMOSE RAIL-TO-RAIL VERY LOW-POWER OPERATIONAL AMPLIFIERS |
| TLC2252AMFK | TRANS ARRAY NPN/NPN W/RES MINI-6 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TLC154 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EPROM/ROM-Based 8-Bit Microcontroller Series |
| TLC1541 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-BIT ANALOG-TO-DIGITAL CONVERTER WITH SERIAL CONTROL AND 11 INPUTS |
| TLC1541CDW | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10bit A/D w/Ser In 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 |
| TLC1541CDWG4 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 32 kSPS Serial 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 |
| TLC1541CDWR | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 32 kSPS Serial 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。