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参数资料
型号： MAX11645EUA+T
厂商： Maxim Integrated Products
文件页数： 5/22页
文件大小： 0K
描述： IC ADC 12BIT I2C/SRL 1CH 8UMAX
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）： 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
MAX11644/MAX11645
Low-Power, 1-/2-Channel, I2C, 12-Bit ADCs
in Ultra-Tiny 1.9mm x 2.2mm Package
______________________________________________________________________________________
13
Slave Address
A bus master initiates communication with a slave
device by issuing a START condition followed by a
slave address. When idle, the MAX11644/MAX11645
continuously wait for a START condition followed by
their slave address. When the MAX11644/MAX11645
recognize their slave address, they are ready to accept
or send data. The slave address is factory programmed
to 0110110. The least significant bit (LSB) of the
address byte (R/W) determines whether the master is
writing to or reading from the MAX11644/MAX11645
(R/W = 0 selects a write condition, R/W = 1 selects a
read condition). After receiving the address, the
MAX11644/MAX11645 (slave) issues an acknowledge
by pulling SDA low for one clock cycle.
Bus Timing
At power-up, the MAX11644/MAX11645 bus timing is
set for fast-mode (F/S mode), which allows conversion
rates up to 22.2ksps. The MAX11644/MAX11645 must
operate in high-speed mode (HS mode) to achieve con-
version rates up to 94.4ksps. Figure 1 shows the bus
timing for the MAX11644/MAX11645’s 2-wire interface.
HS Mode
At power-up, the MAX11644/MAX11645 bus timing is
set for F/S mode. The bus master selects HS mode by
addressing all devices on the bus with the HS-mode
master code 0000 1XXX (X = don’t care). After suc-
cessfully receiving the HS-mode master code, the
MAX11644/MAX11645 issue a not-acknowledge, allow-
ing SDA to be pulled high for one clock cycle (Figure
8). After the not-acknowledge, the MAX11644/
MAX11645 are in HS mode. The bus master must then
send a repeated START followed by a slave address to
initiate HS mode communication. If the master gener-
ates a STOP condition, the MAX11644/MAX11645
return to F/S mode.
01
1
0
1
0
R/W
A
SLAVE ADDRESS
S
SCL
SDA
1
2
34
567
8
9
MAX11644/MAX11645
SEE ORDERING INFORMATION FOR SLAVE ADDRESS OPTIONS AND DETAILS.
Figure 7. MAX11644/MAX11645 Slave Address Byte
000
1
0X
X
A
HS-MODE MASTER CODE
SCL
SDA
S
Sr
F/S MODE
HS MODE
Figure 8. F/S-Mode to HS-Mode Transfer
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相关代理商/技术参数
参数描述
MAX11645EWC+ 制造商:Maxim Integrated Products 功能描述:
MAX11645EWC+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
MAX11646 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
MAX11646EUA+ 功能描述:模数转换器 - ADC 10-Bit 2Ch 94.4ksps 5.5V 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
MAX11646EUA+T 功能描述:模数转换器 - ADC 10-Bit 2Ch 94.4ksps 5.5V 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
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