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參數(shù)資料
| 型號： | MAX1108 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Single-Supply, Low-Power, 2-Channel, Serial 8-Bit ADCs |
| 中文描述： | 單電源、低功耗、2通道、串行8位ADC |
| 文件頁數(shù)： | 16/20頁 |
| 文件大?。?/td> | 185K |
| 代理商： | MAX1108 |
M
S ingle-S upply, Low-Power,
2-Channel, S erial 8-Bit ADCs
16
______________________________________________________________________________________
to the SCLK pin; varying the analog input alters the
result of conversion that is clocked out at the DOUT pin.
A total of 10 clock cycles is required per conversion.
Data Framing
The falling edge of
CS
does not start a conversion. The
first logic high clocked into DIN is interpreted as a start
bit and defines the first bit of the control byte.
Acquisition starts on the falling edge of the fourth SCLK
and lasts for two SCLKs in external clock mode or four
SCLKs in internal clock mode. Conversion starts imme-
diately after acquisition is completed. The start bit is
defined as:
The first high bit clocked into DIN with
CS
low any time the converter is idle; e.g., after
V
DD
is applied.
OR
In external clock mode, the first high bit
clocked into DIN after the bit 5 (D5) of a con-
version in progress is clocked onto the
DOUT pin.
OR
In internal clock mode, the first high bit
clocked into DIN after the bit 4 (D4) is
clocked onto the DOUT pin.
The MAX1108/MAX1109 can run at a maximum speed
of 10 clocks per conversion. Figure 10 shows the serial-
interface timing necessary to perform a conversion
every 10 SCLK cycles in external clock mode.
Many microcontrollers require that conversions occur in
multiples of 8 SCLK clocks; 16 clocks per conversion is
typically the fastest that a microcontroller can drive the
MAX1108/MAX1109. Figure 11 shows the serial-inter-
face timing necessary to perform a conversion every 16
SCLK cycles in external clock mode.
SCLK
DIN
DOUT
CS
S
CONTROL BYTE 0
CONTROL BYTE 1
S
CONVERSION RESULT 0
D7 D5 D0
D7 D5 D0
D7
CONVERSION RESULT 1
CONTROL BYTE 2
S
1
8
10
1
10
1
10 1
S
t
ACQ
t
ACQ
t
ACQ
IDLE
A/D STATE
t
CONV
t
CONV
t
CONV
Figure 10. Continuous Conversion, External Clock Mode, 10 Clocks/Conversion Timing
SCLK
DIN
DOUT
CS
S
CONTROL BYTE 0
CONTROL BYTE 1
S
CONVERSION RESULT 0
D7 D0
D7 D0
CONVERSION RESULT 1
S
1
8
17
25
Figure 11. Continuous Conversion, External Clock Mode, 16 Clocks/Conversion Timing
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1108_03 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Single-Supply, Low-Power, 2-Channel, Serial 8-Bit ADCs |
| MAX11080 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:12-Channel, High-Voltage Battery-Pack Fault Monitor |
| MAX11080EVKIT | 功能描述:電源管理IC開發(fā)工具 Programmers, Development Systems Eval and Demo Boards and Kits - KIT FAULT MONITOR 12CH HV RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| MAX11080EVKIT+ | 功能描述:電源管理IC開發(fā)工具 Programmers, Development Systems Eval and Demo Boards and Kits - KIT FAULT MONITOR 12CH HV RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| MAX11080GUU/V+ | 功能描述:電池管理 12 Ch Hi Volt Batt Pack Fault Monitor RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
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