參數(shù)資料
型號(hào)： MAX1138KEEE+T
廠商： Maxim Integrated Products
文件頁數(shù)： 8/22頁
文件大?。?/td> 0K
描述： IC ADC 10BIT SERIAL 16-QSOP
標(biāo)準(zhǔn)包裝： 2,500
位數(shù)： 10
采樣率（每秒）： 94.4k
數(shù)據(jù)接口： I²C，串行
轉(zhuǎn)換器數(shù)目： 1
功率耗散（最大）： 3.35mW
電壓電源： 單電源
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 16-SSOP（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝： 16-QSOP
包裝： 帶卷 (TR)
輸入數(shù)目和類型： 12 個(gè)單端，單極；12 個(gè)單端，雙極；6 個(gè)差分，單極；6 個(gè)差分，雙極
MAX1136–MAX1139
The device memory contains all of the conversion
results when the MAX1136–MAX1139 release SCL. The
converted results are read back in a first-in-first-out
(FIFO) sequence. If AIN_/REF is set to be a reference
input or output (SEL1 = 1, Table 6), AIN_/REF will be
excluded from a multichannel scan. The memory con-
tents can be read continuously. If reading continues
past the result stored in memory, the pointer will wrap
around and point to the first result. Note that only the
current conversion results will be read from memory.
The device must be addressed with a read command
to obtain new conversion results.
The internal clock mode’s clock stretching quiets the
SCL bus signal reducing the system noise during con-
version. Using the internal clock also frees the bus
master (typically a microcontroller) from the burden of
running the conversion clock, allowing it to perform
other tasks that do not need to use the bus.
2.7V to 3.6V and 4.5V to 5.5V, Low-Power,
4-/12-Channel, 2-Wire Serial 10-Bit ADCs
16
______________________________________________________________________________________
B. SCAN MODE CONVERSIONS WITH INTERNAL CLOCK
S
1
SLAVE ADDRESS
A
71 1
R
CLOCK STRETCH
NUMBER OF BITS
P or Sr
1
8
RESULT 8 LSBs
8
RESULT 2 MSBs
A
1
A. SINGLE CONVERSION WITH INTERNAL CLOCK
S
1
SLAVE ADDRESS
71 1
R
CLOCK STRETCH
A
NUMBER OF BITS
P or Sr
1
8
RESULT 1 ( 2MSBs)
A
1
A
8
RESULT 1 (8 LSBs) A
8
RESULT N (8LSBs)
A
1
8
RESULT N (8MSBs)
SLAVE TO MASTER
MASTER TO SLAVE
CLOCK STRETCH
tACQ1
tCONV2
tACQ2
tCONVN
tACQN
tCONV
tACQ
1
tCONV1
Figure 10. Internal Clock Mode Read Cycles
SLAVE ADDRESS
tCONV1
tACQ1
tACQ2
tCONVN
tACQN
tCONV
tACQ
NUMBER OF BITS
1
8
A
1
S
1
A
71 1
R
S
1
71 1
R
P OR Sr
1
8
A
1
A
8
A
8
B. SCAN MODE CONVERSIONS WITH EXTERNAL CLOCK
1
SLAVE ADDRESS
P OR Sr
RESULT (8 LSBs)
8
A
1
RESULT (2 MSBs)
A. SINGLE CONVERSION WITH EXTERNAL CLOCK
SLAVE TO MASTER
MASTER TO SLAVE
RESULT 1 (2 MSBs)
RESULT 2 (8 LSBs)
RESULT N (8 LSBs)
A
1
8
RESULT N (2 MSBs)
A
Figure 11. External Clock Mode Read Cycle
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MAX1138LEEE+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
MAX1138LEEE-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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