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参数资料
型号： MAX1238EEE/V+T
厂商： Maxim Integrated Products
文件页数： 8/22页
文件大小： 0K
描述： IC ADC 12BIT SRL 94.4KSPS 16QSOP
产品培训模块： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装： 2,500
位数： 12
采样率（每秒）： 94.4k
数据接口： I²C，串行
转换器数目： 1
功率耗散（最大）： 666.7mW
电压电源： 单电源
工作温度： -40°C ~ 85°C
安装类型： 表面贴装
封装/外壳： 16-SSOP（0.154"，3.90mm 宽）
供应商设备封装： 16-QSOP
包装： 带卷 (TR)
输入数目和类型： 12 个单端，单极；12 个单端，双极；6 个差分，单极；6 个差分，双极
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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相关代理商/技术参数
参数描述
MAX1238EVKIT 功能描述:数据转换 IC 开发工具 MAX1238 Eval Kit RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V
MAX1238KEEE 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
MAX1238KEEE+ 功能描述:模数转换器 - ADC Integrated Circuits (ICs) RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
MAX1238KEEE+T 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
MAX1238KEEE-T 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
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