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參數(shù)資料
| 型號： | MAX192 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Low-Power, 8-Channel,Serial 10-Bit ADC(8通道,133ksps串行10位A/D轉(zhuǎn)換器) |
| 中文描述： | 低功耗、8通道、串行10位ADC |
| 文件頁數(shù)： | 15/24頁 |
| 文件大?。?/td> | 211K |
| 代理商： | MAX192 |
only available using an external clock and reduces the
maximum clock rate to 400kHz.
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
(see Tables 3 and 6). Pull–———Nlow at any time to shut
down the converter completely. –———Noverrides bits 7
and 8 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 short-
ened 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.
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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| MAX1920ETT | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
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| MAX1920EUT+ | 制造商:Maxim Integrated Products 功能描述:CONV DC-DC SGL-OUT STEP DOWN 6PIN SOT-23 - Rail/Tube 制造商:Maxim Integrated Products 功能描述:Step-down DC-DC converter, MAX1920EUT+ |
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