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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)： | 12/24頁 |
| 文件大?。?/td> | 211K |
| 代理商： | MAX192 |
M
the MAX192 and three-states DOUT, but it does not
adversely affect an internal clock-mode conversion
already in progress. When internal clock mode is
selected, SSTRB does not go into a high-impedance
Figure 10 shows the SSTRB timing in internal clock
mode. In internal clock mode, data can be shifted in
and out of the MAX192 at clock rates exceeding
4.0MHz, provided that the minimum acquisition time,
t
AZ
, is kept above 1.5μs.
Data Framing
The falling edge of–—does
not
start a conversion on the
MAX192. The first logic high clocked into DIN is inter-
preted as a start bit and defines the first bit of the control
byte. A conversion starts on the falling edge of SCLK,
after the eighth bit of the control byte (the PD0 bit) is
clocked into DIN. The start bit is defined as:
The first high bit clocked into DIN with–—low any-
time the converter is idle, e.g. after V
DD
is applied.
OR
The first high bit clocked into DIN after bit 3 of a
conversion in progress is clocked onto the DOUT pin.
If a falling edge on–—forces a start bit before bit 3
(B3) becomes available, then the current conversion
will be terminated and a new one started. Thus, the
fastest the MAX192 can run is 15 clocks per conver-
sion. Figure 11a shows the serial-interface timing nec-
essary to perform a conversion every 15 SCLK cycles
in external clock mode.
Low-Power, 8-Channel,
S erial 10-Bit ADC
12
______________________________________________________________________________________
SSTRB
CS
SCLK
DIN
DOUT
1
4
8
12
16
20
24
START
SEL2 SEL1 SEL0BIP
SCL/
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
S1
SO
ACQUISITION
AUTO ZERO
1.5μs (CLK = 2MHz)
IDLE
FILLED WITH
ZEROS
IDLE
CONVERSION
t
AZ
A/D STATE
RB1
RB1
RB2
RB3
RB2
RB3
RB2
RB3
CS
SCLK
DIN
DOUT
t
CSH
t
CSS
t
CL
t
DS
t
DH
t
DV
t
CH
t
DO
t
TR
t
CSH
Figure 6. 24-Bit External Clock Mode Conversion Timing (SPI, QSPI and Microwire Compatible)
Figure 7. Detailed Serial-Interface Timing
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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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