參數(shù)資料
型號(hào)： TLC1514DW
廠商： Texas Instruments, Inc.
英文描述： CAP, CERAMIC, 22PF, 50V, NPO, 0603
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(dòng)開(kāi)機(jī)和下變頻器
文件頁(yè)數(shù)： 34/40頁(yè)
文件大?。?/td> 609K
代理商： TLC1514DW
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
34
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
Rs
ri
VS
VC
Driving Source
TLC1514/18
Ci
VI
VI= Input Voltage at AIN
VS= External Driving Source Voltage
Rs= Source Resistance
ri = Input Resistance (MUX on Resistance)
Ci= Input Capacitance
VC= Capacitance Charging Voltage
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 38. Equivalent Input Circuit Including the Driving Source
maximum conversion throughput
For a supply voltage of 5 V, if the source impedance is less than 1 k
, and the ADC analog input capacitance
Ci is less than 50 pF, this equates to a minimum sampling time tch(0.5 LSB) of 0.571
μ
s. Since the sampling
time requires 12 SCLKs, the fastest SCLK frequency is 12/tch = 20 MHz.
The minimal total cycle time is given as:
tc
tcommand
tch
tconv
td(EOCH–CSL)
4
1
f(SCLK)
12
1
f(SCLK)
1.4
s
0.1
s
16
1
20 MHz
1.5
s
2.3
s
This is equivalent to a maximum throughput of 400 KSPS. The throughput can be even higher with a smaller
source impedance.
相關(guān)PDF資料
PDF描述
TLC1518PW 5-V, 10-BIT, 400 KSPS, 4/8 CHANNEL, LOW POWER, SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTO POWER DOWN
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
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TLC1514ID 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10bit 400kSPS SAR 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
TLC1514ID 制造商:Texas Instruments 功能描述:IC 10BIT ADC 400KSPS SMD SOIC16 制造商:Texas Instruments 功能描述:IC, 10BIT ADC, 400KSPS, SMD, SOIC16
TLC1514IDG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 400 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
TLC1514IDR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 400 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
TLC1514IDRG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 400 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
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