参数资料
型号: MAX11646EUA+T
厂商: Maxim Integrated Products
文件页数: 8/22页
文件大小: 0K
描述: IC ADC 10BIT I2C 94.4KSPS 8UMAX
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
位数: 10
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): 362mW
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: 8-TSSOP,8-MSOP(0.118",3.00mm 宽)
供应商设备封装: 8-uMAX
包装: 带卷 (TR)
输入数目和类型: 2 个单端,单极;2 个单端,双极;1 个差分,单极;1 个差分,双极
MAX11646/MAX11647
Low-Power, 1-/2-Channel, I2C, 10-Bit ADCs
in Ultra-Tiny 1.9mm x 2.2mm Package
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
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
A
Figure 10. Internal Clock Mode Read Cycles
Internal Clock
When configured for internal clock mode (CLK = 0), the
MAX11646/MAX11647 use their internal oscillator as
the conversion clock. In internal clock mode, the
MAX11646/MAX11647 begin tracking the analog input
after a valid address on the eighth rising edge of the
clock. On the falling edge of the ninth clock, the analog
signal is acquired and the conversion begins. While
converting the analog input signal, the MAX11646/
MAX11647 hold SCL low (clock stretching). After the
conversion completes, the results are stored in internal
memory. If the scan mode is set for multiple conver-
sions, they all happen in succession with each addi-
tional result stored in memory. The MAX11646/
MAX11647 contain two 10-bit blocks of memory. Once
all conversions are complete, the MAX11646/MAX11647
release SCL, allowing it to be pulled high. The master can
now clock the results out of the memory in the same
order the scan conversion has been done at a clock
rate of up to 1.7MHz. SCL is stretched for a maximum
of 7.6s per channel (see Figure 10).
The device memory contains all of the conversion results
when the MAX11646/MAX11647 release SCL. The con-
verted results are read back in a first-in/first-out (FIFO)
sequence. The memory contents can be read continu-
ously. If reading continues past the result stored in
memory, the pointer wraps around and point to the first
result. Note that only the current conversion results are
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.
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MAX11647 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 1-/2-Channel, 2-Wire Serial, 10-Bit ADCs
MAX11647EUA+ 功能描述:模数转换器 - ADC 12-Bit 2Ch 94.4ksps 3.6V Precision 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
MAX11647EUA+T 功能描述:模数转换器 - ADC 12-Bit 2Ch 94.4ksps 3.6V Precision 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
MAX11647EWC+T 功能描述:模数转换器 - ADC 12-Bit 2Ch 94.4ksps 3.6V Precision 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
MAX1165 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Low-Power, 16-Bit Analog-to-Digital Converters with Parallel Interface