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参数资料
| 型号： | MAX192AEWP |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | ADC |
| 英文描述： | Low-Power, 8-Channel, Serial 10-Bit ADC |
| 中文描述： | 8-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20 |
| 封装： | SO-20 |
| 文件页数： | 15/24页 |
| 文件大小： | 201K |
| 代理商： | MAX192AEWP |
Power-Down
Choosing Power-Down Mode
You can save power by placing the converter in a
low-current shutdown state between conversions.
Select full power-down or fast power-down mode via
bits 1 and 0 of the DIN control byte with
SHDN
either
high or floating (see Tables 3 and 6). Pull
SHDN
low at
any time to shut down the converter completely.
SHDN
overrides bits 1 and 0 of DIN word (see Table 7).
Full power-down mode turns off all chip functions that
draw quiescent current, typically reducing I
DD
to 2μA.
Fast power-down mode turns off all circuitry except the
bandgap reference. With the fast power-down mode, the
supply current is 30μA. Power-up time can be shortened
to 5μs in internal compensation mode.
In both software shutdown modes, the serial interface
remains operational, however, the ADC will not convert.
Table 5 illustrates how the choice of reference-buffer
compensation and power-down mode affects both
power-up delay and maximum sample rate.
In external compensation mode, the power-up time is
20ms with a 4.7μF compensation capacitor when the
capacitor is fully discharged. In fast power-down, you
can eliminate start-up time by using low-leakage capaci-
M
Low-Power, 8-Channel,
S erial 10-Bit ADC
______________________________________________________________________________________
15
POWERED UP
FULL
POWER-
DOWN
POWERED
UP
POWERED UP
DATA VALID
(10 + 2 DATA BITS)
DATA VALID
(10 + 2 DATA BITS)
DATA INVALID
VALID
EXTERNAL
EXTERNAL
INTERNAL
S X X X X X 1 1
S
0 1
X
X
X
X
X
X X X X X
S
1 1
FAST
POWER-DOWN
MODE
DOUT
DIN
CLOCK
MODE
SHDN
SETS EXTERNAL
CLOCK MODE
SETS EXTERNAL
CLOCK MODE
SETS FAST
POWER-DOWN
MODE
Figure 12a. Timing Diagram Power-Down Modes, External Clock
FULL
POWER-DOWN
POWERED
UP
POWERED UP
DATA VALID
DATA VALID
INTERNAL CLOCK MODE
S X X X X X 1 0
S
0 0
X
X
X
X
X
S
MODE
DOUT
DIN
CLOCK
MODE
SETS INTERNAL
CLOCK MODE
SETS FULL
POWER-DOWN
CONVERSION
CONVERSION
SSTRB
Figure 12b. Timing Diagram Power-Down Modes, Internal Clock
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX192AEWP/GG8 | 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 |
| MAX192AEWP+ | 功能描述:模数转换器 - ADC 10-Bit 8Ch 133ksps 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 |
| MAX192AEWP+T | 功能描述:模数转换器 - ADC 10-Bit 8Ch 133ksps 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 |
| MAX192AEWP-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 |
| MAX192BCAP | 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 |
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