參數資料
型號： MAX1239LEEE+
廠商： Maxim Integrated Products
文件頁數： 8/22頁
文件大小： 0K
描述： IC ADC 12BIT SERIAL 16-QSOP
標準包裝： 100
位數： 12
采樣率（每秒）： 94.4k
數據接口： I²C，串行
轉換器數目： 1
功率耗散（最大）： 666.7mW
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）
供應商設備封裝： 16-QSOP
包裝： 管件
輸入數目和類型： 12 個單端，單極；12 個單端，雙極；6 個差分，單極；6 個差分，雙極
MAX1236–MAX1239
(FIFO) sequence. If AIN_/REF is set to be a reference
input or output (SEL1 = 1, Table 6), AIN_/REF is exclud-
ed from a multichannel scan. The memory contents can
be read continuously. If reading continues past the
result stored in memory, the pointer wraps around and
point to the first result. Note that only the current con-
version results is read from memory. The device must
be addressed with a read command to obtain new con-
version 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.
External Clock
When configured for external clock mode (CLK = 1),
the MAX1236–MAX1239 use the SCL as the conversion
2.7V to 3.6V and 4.5V to 5.5V, Low-Power,
4-/12-Channel, 2-Wire Serial, 12-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 4 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 ( 4MSBs)
A
1
A
8
RESULT 1 (8 LSBs) A
8
RESULT N (8LSBs)
A
1
8
RESULT N (4MSBs)
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 (4 MSBs)
A. SINGLE CONVERSION WITH EXTERNAL CLOCK
SLAVE TO MASTER
MASTER TO SLAVE
RESULT 1 (4 MSBs)
RESULT 2 (8 LSBs)
RESULT N (8 LSBs)
A
1
8
RESULT N (4 MSBs)
A
Figure 11. External Clock Mode Read Cycle
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相關代理商/技術參數
參數描述
MAX1239LEEE+ 功能描述:模數轉換器 - ADC Integrated Circuits (ICs) RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1239LEEE+T 功能描述:模數轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1239LEEE-T 功能描述:模數轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1239MEEE 功能描述:模數轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1239MEEE+ 功能描述:模數轉換器 - ADC Integrated Circuits (ICs) RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
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