參數(shù)資料
型號(hào)： MAX144AEPA+
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 3/16頁(yè)
文件大?。?/td> 0K
描述： IC ADC 12BIT 108KSPS 8-DIP
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 50
位數(shù)： 12
采樣率（每秒）： 108k
數(shù)據(jù)接口： MICROWIRE?，QSPI?，串行，SPI?
轉(zhuǎn)換器數(shù)目： 1
功率耗散（最大）： 727mW
電壓電源： 單電源
工作溫度： -40°C ~ 85°C
安裝類(lèi)型： 通孔
封裝/外殼： 8-DIP（0.300"，7.62mm）
供應(yīng)商設(shè)備封裝： 8-PDIP
包裝： 管件
輸入數(shù)目和類(lèi)型： 2 個(gè)單端，單極
DOUT valid timing characteristic. Data should be
clocked into the P on SCLK’s rising edge.
4) Pull CS/SHDN high at or after the 16th falling clock
edge. If CS/SHDN remains low, trailing zeros will be
clocked out after the LSB.
5) With CS/SHDN high, wait at least 60ns (tCS) before
starting a new conversion by pulling CS/SHDN low.
A conversion can be aborted by pulling CS/SHDN
high before the conversion ends; wait at least 60ns
before starting a new conversion.
Data can be output in two 8-bit sequences or continu-
ously. The bytes will contain the result of the conversion
padded with three leading ones and the channel identi-
fication before the MSB. If the serial clock hasn’t been
idled after the last LSB and CS/SHDN is kept low,
DOUT sends trailing zeros.
SPI and MICROWIRE Interface
When using SPI (Figure 8a) or MICROWIRE (Figure 8b)
interfaces, set CPOL = 0 and CPHA = 0. Conversion
begins with a falling edge on CS/SHDN (Figure 8c).
Two consecutive 8-bit readings are necessary to obtain
the entire 12-bit result from the ADC. DOUT data transi-
tions on the serial clock’s falling edge and is clocked
into the P on SCLK’s rising edge. The first 8-bit data
stream contains three leading ones, the channel identi-
MAX144/MAX145
+2.7V, Low-Power, 2-Channel, 108ksps,
Serial 12-Bit ADCs in 8-Pin MAX
______________________________________________________________________________________
11
CS/SHDN
SCLK
DOUT
tCL
tDV
tCH
tSCLKS
HIGH-Z
tCS
tDO
tTR
Figure 7. Detailed Serial-Interface Timing Sequence
MAX144
MAX145
CS/SHDN
SCLK
DOUT
I/O
SK
SI
MICROWIRE
CS/SHDN
SCLK
DOUT
I/O
SCK
MISO
VDD
SS
MAX144
MAX145
SPI
Figure 8a. SPI Connections
8b. MICROWIRE Connections
CHID
D11
D10
D9
D8
1
2
3
4
5
6
7
8
9
10
11
121314
15
16
D7
D6
D5
D4
D3
HIGH-Z
DOUT*
CS/SHDN
SCLK
1ST BYTE READ
2ND BYTE READ
SAMPLING INSTANT
*WHEN CS/SHDN IS HIGH, DOUT = HIGH-Z
MSB
LSB
D2
D1
D0
Figure 8c. SPI/MICROWIRE Interface Timing Sequence (CPOL = CPHA = 0)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX144AEPA+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 2Ch 108ksps 5.25V High Speed 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
MAX144AEUA 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Integrated Circuits (ICs) 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
MAX144AEUA+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 2Ch 108ksps 5.25V High Speed 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
MAX144AEUA+T 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 2Ch 108ksps 5.25V High Speed 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
MAX144AEUA-T 功能描述:模數(shù)轉(zhuǎn)換器 - 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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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