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参数资料
型号： MAX1296ACEG
厂商： MAXIM INTEGRATED PRODUCTS INC
元件分类： ADC
英文描述： 420ksps, +5V, 6-/2-Channel, 12-Bit ADCs with +2.5V Reference and Parallel Interface
中文描述： 2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PDSO24
封装： 0.150 INCH, 0.025 INCH PITCH, QSOP-24
文件页数： 13/20页
文件大小： 226K
代理商： MAX1296ACEG
M
420ksps, +5V, 6-/2-Channel, 12-Bit ADCs
with +2.5V Reference and Parallel Interface
______________________________________________________________________________________
13
External Clock Mode
To select external clock mode, bits D6 and D7 of the
control byte must be set to zero. Figure 6 shows the
clock and
WR
timing relationship for internal (Figure 6a)
and external (Figure 6b) acquisition modes with an exter-
nal clock. For proper operation, a 100kHz to 7.6MHz
clock frequency with 30% to 70% duty cycle is recom-
mended. Operating the MAX1294/MAX1296 with clock
frequencies lower than 100kHz is not recommended
because the resulting voltage droop across the hold
capacitor in the T/H stage will degrade performance.
Digital Interface
The input and output data are multiplexed on a three-
state parallel interface (I/O) that can easily be inter-
faced with standard μPs. The signals
CS
,
WR
, and
RD
control the write and read operations.
CS
represents
the chip-select signal, which enables a μP to address
the MAX1294/MAX1296 as an I/O port. When high,
CS
disables the CLK,
WR
, and
RD
inputs and forces the
interface into a high-impedance (high-Z) state.
Figure 6a. External Clock and
WR
Timing (Internal Acquisition Mode)
Figure 6b. External Clock and
WR
Timing (External Acquisition Mode)
WR
CLK
CLK
WR
WR GOES HIGH WHEN CLK IS HIGH
WR GOES HIGH WHEN CLK IS LOW
t
CWS
t
CH
t
CL
t
CP
t
CWH
ACQUISITION STARTS
ACQUISITION STARTS
CONVERSION STARTS
CONVERSION STARTS
ACQUISITION ENDS
ACQUISITION ENDS
ACQMOD = "0"
ACQMOD = "0"
WR
CLK
CLK
WR
WR GOES HIGH WHEN CLK IS HIGH
WR GOES HIGH WHEN CLK IS LOW
t
DH
t
DH
t
CWH
t
CWS
ACQUISITION STARTS
ACQUISITION STARTS
CONVERSION STARTS
CONVERSION STARTS
ACQUISITION ENDS
ACQUISITION ENDS
ACQMOD = "1"
ACQMOD = "1"
ACQMOD = "0"
ACQMOD = "0"
相关PDF资料
PDF描述
MAX1296AEEG 420ksps, +5V, 6-/2-Channel, 12-Bit ADCs with +2.5V Reference and Parallel Interface
MAX1296BEEG 420ksps, +5V, 6-/2-Channel, 12-Bit ADCs with +2.5V Reference and Parallel Interface
MAX1294AEEI 420ksps, +5V, 6-/2-Channel, 12-Bit ADCs with +2.5V Reference and Parallel Interface
MAX1296BCEG 420ksps, +5V, 6-/2-Channel, 12-Bit ADCs with +2.5V Reference and Parallel Interface
MAX1295BEEI 265ksps, +3V, 6-/2-Channel, 12-Bit ADCs with +2.5V Reference and Parallel Interface
相关代理商/技术参数
参数描述
MAX1296ACEG+ 功能描述:模数转换器 - ADC 12-Bit 2Ch 420ksps 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
MAX1296ACEG+T 功能描述:模数转换器 - ADC 12-Bit 2Ch 420ksps 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
MAX1296ACEG-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
MAX1296AEEG 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
MAX1296AEEG+ 功能描述:模数转换器 - ADC 12-Bit 2Ch 420ksps 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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