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| 型号： | MAX152CPP+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/12页 |
| 文件大小： | 0K |
| 描述： | IC ADC 8BIT 1UA PWR-DWN 20-DIP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 18 |
| 位数： | 8 |
| 采样率（每秒）： | 400k |
| 数据接口： | 并联 |
| 转换器数目： | 3 |
| 功率耗散（最大）： | 889mW |
| 电压电源： | 双 ± |
| 工作温度： | 0°C ~ 70°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： | 1 个单端，单极；1 个单端，双极 |
MAX152
+3V, 8-Bit ADC with 1A Power-Down
_______________________________________________________________________________________
7
Once the MAX152 is in power-down mode, lowest sup-
ply current is drawn with MODE low (RD mode) due to
an internal pull-down resistor at this pin. In addition, for
minimum current consumption, other digital inputs
should remain high in power-down. Refer to the
Reference section for information on reducing refer-
ence current during power-down.
___________________Digital Interface
The MAX152 has two basic interface modes set by the
status of the MODE input pin. When MODE is low, the
converter is in the RD mode; when MODE is high, the
converter is set up for the WR-RD mode.
Read Mode (MODE = 0)
In RD mode, conversion control and data access are
controlled by the
RD input (Figure 3). The comparator
inputs track the analog input voltage for the duration of
tP. A conversion is initiated by driving RD low. With Ps
that can be forced into a wait state, hold
RD low until
output data appears. The P starts the conversion,
waits, and then reads data with a single read instruction.
WR/RDY is configured as a status output (RDY) in RD
mode, where it can drive the ready or wait input of a
P. RDY is an open-collector output (with no internal
pull-up) that goes low after the falling edge of
CS and
goes high at the end of the conversion. If not used, the
WR/RDY pin can be left unconnected. The INT output
goes low at the end of the conversion and returns high
on the rising edge of
CS or RD.
Write-Read Mode (MODE = 1)
Figures 4 and 5 show the operating sequence for the
write-read (WR-RD) mode. The comparator inputs
track the analog input voltage for the duration of tP.
The conversion is initiated by a falling edge of
WR.
When
WR returns high, the 4 MSBs' flash result is
latched into the output buffers and the 4 LSBs' conver-
sion begins.
INT goes low, indicating conversion end,
and the lower 4 data bits are latched into the output
buffers. The data is then accessible after
RD goes low
(see
Timing Characteristics).
tUP
tCSS
tP
tCSH
tDH
tREAD2
tRD
D0-D7
RD
WR
CS
PWRDN
INT
VALID DATA
tINTL
tACC2
tWR
Figure 4. WR-RD Mode Timing (tRD > tINTL) (MODE = 1)
tUP
tCSS
tP
tCSH
tDH
tREAD1
tRD
RD
WR
CS
PWRDN
INT
VALID DATA
tINTH
tWR
tACC1
tCWR
tRI
Figure 5. WR-RD Mode Timing (tRD < tINTL), Fastest Operating
Mode (MODE = 1)
tUP
tCSS
tRDY
WITH EXTERNAL
PULL-UP
tP
tCSH
tINTH
tDH
tCRD
tACCO
D0-D7
RDY
RD
CS
PWRDN
INT
VALID DATA
Figure 3. RD Mode Timing (MODE = 0)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX152CPP+ | 功能描述:模数转换器 - ADC 8-Bit 400ksps 3V 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 |
| MAX152CWP | 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 |
| MAX152CWP+ | 功能描述:模数转换器 - ADC 8-Bit 400ksps 3V 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 |
| MAX152CWP+T | 功能描述:模数转换器 - ADC 8-Bit 400ksps 3V 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 |
| MAX152CWP-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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