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参数资料
| 型号： | MAX148AEPP+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 4/23页 |
| 文件大小： | 0K |
| 描述： | IC ADC 10BIT SERIAL 20-DIP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 18 |
| 位数： | 10 |
| 采样率（每秒）： | 133k |
| 数据接口： | MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 889mW |
| 电压电源： | 单电源 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 20-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 20-PDIP |
| 包装： | 管件 |
| 输入数目和类型： | 8 个单端，单极；8 个单端，双极；4 个差分，单极；4 个差分，双极 |
+2.7V to +5.25V, Low-Power, 8-Channel,
Serial 10-Bit ADCs
MAX148/MAX149
12
Figure 7. Detailed Serial-Interface Timing
Figure 8. External Clock Mode SSTRB Detailed Timing
The T/H acquires the input signal as the last three bits of
the control byte are clocked into DIN. Bits PD1 and PD0
of the control byte program the clock mode. Figures 7–10
show the timing characteristics common to both modes.
External Clock
In external clock mode, the external clock not only shifts
data in and out, but it also drives the analog-to-digital
conversion steps. SSTRB pulses high for one clock period
after the last bit of the control byte. Successive- approxi-
mation bit decisions are made and appear at DOUT on
each of the next 12 SCLK falling edges (Figure 6). SSTRB
and DOUT go into a high-impedance state when CS goes
high; after the next CS falling edge, SSTRB outputs a
logic-low. Figure 8 shows the SSTRB timing in external
clock mode.
The conversion must complete in some minimum time, or
droop on the sample-and-hold capacitors may degrade
conversion results. Use internal clock mode if the serial-
clock frequency is less than 100kHz, or if serial-clock
interruptions could cause the conversion interval to
exceed 120Fs.
tDO
SCLK
DIN
DOUT
CS
tCSS
tDS
tDH
tDV
tTR
tCSH
tCL
tCH
tCSH
PD0 CLOCKED IN
SCLK
tSSTRB
SSRTB
CS
tSDV
tSTR
tSSTRB
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX148AEPP+ | 功能描述:模数转换器 - ADC 10-Bit 8Ch 133ksps 5.25V 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 |
| MAX148AMJP | 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 |
| MAX148BC/D | 功能描述:模数转换器 - ADC +2.7V to +5.25V Low-Power 8-Channel Serial 10-Bit ADCs 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 |
| MAX148BCAP | 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 |
| MAX148BCAP+ | 功能描述:模数转换器 - ADC 10-Bit 8Ch 133ksps 5.25V 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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