參數(shù)資料
型號(hào)： MAX148
廠商： Maxim Integrated Products, Inc.
英文描述： +2.7V to +5.25V, Low-Power, 8-Channel, Serial 10-Bit ADCs(8通道，133ksps，串行10位A/D轉(zhuǎn)換器)
中文描述： +2.7V至+5.25V、低功耗、8通道、串行10位ADC
文件頁(yè)數(shù)： 14/20頁(yè)
文件大小： 200K
代理商： MAX148
M
+2.7V, Low-Power, 8-Channel,
S erial 10-Bit ADC
14
______________________________________________________________________________________
__________ Applic ations Information
Power-On Reset
When power is first applied, and if
SHDN
is not pulled
low, internal power-on reset circuitry will activate the
MAX148 in internal clock mode, ready to convert with
SSTRB = high. After the power supplies have been sta-
bilized, the internal reset time is 10μs, and no conver-
sions should be performed during this phase. SSTRB is
high on power-up and, if
CS
is low, the first logical 1 on
DIN will be interpreted as a start bit. Until a conversion
takes place, DOUT will shift out zeros.
Power-Down
The MAX148’s automatic power-down mode can save
considerable power when operating at speeds below
the maximum sampling rate.
Figure 13 shows the average supply current as a func-
tion of the sampling rate. You can save power by plac-
ing the converter in a low-current shutdown state
between conversions.
Select power-down via bits 1 and 0 of the DIN control
byte with
SHDN
high (Tables 1 and 4). Pull
SHDN
low at
any time to shut down the converter completely.
SHDN
overrides bits 1 and 0 of the control byte (Table 6).
Power-down mode turns off all chip functions that draw
quiescent current, reducing I
DD
typically to 1.2μA.
Figures 12a and 12b illustrate the various power-down
sequences in both external and internal clock modes.
POWERED UP
HARDWARE
POWER-
DOWN
POWERED UP
POWERED UP
10+2 DATA BITS
10+2 DATA BITS
INVALID
DATA
VALID
ATA
EXTERNAL
EXTERNAL
S X X X X X 1 1
S
0 0
X
X
X
X
X
X X X X X
S
1 1
SOFTWARE
POWER-DOWN
MODE
DOUT
DIN
CLOCK
MODE
SHDN
SETS EXTERNAL
CLOCK MODE
SETS EXTERNAL
CLOCK MODE
SETS SOFTWARE
POWER-DOWN
POWER-DOWN
POWERED UP
POWERED UP
DATA VALID
DATA VALID
INTERNAL
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
POWER-DOWN
CONVERSION
CONVERSION
SSTRB
Figure 12a. Timing Diagram Power-Down Modes, External Clock
Figure 12b. Timing Diagram Power-Down Modes, Internal Clock
相關(guān)PDF資料
PDF描述
MAX15003 Triple-Output Buck Controller with Tracking/Sequencing
MAX15008 Automotive 300mA LDO Voltage Regulators with Tracker Output and Overvoltage Protector
MAX15010 Automotive 300mA LDO Voltage Regulators with Tracker Output and Overvoltage Protector
MAX15009 Automotive 300mA LDO Regulators with Switched Output and Overvoltage Protector
MAX15011 Automotive 300mA LDO Regulators with Switched Output and Overvoltage Protector
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX14800CCM+ 功能描述:模擬開關(guān) IC RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:2 開關(guān)配置:SPDT 開啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-16
MAX14800CCM+T 功能描述:模擬開關(guān) IC RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:2 開關(guān)配置:SPDT 開啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-16
MAX14801CCM+ 功能描述:模擬開關(guān) IC RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:2 開關(guān)配置:SPDT 開啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-16
MAX14801CCM+T 功能描述:模擬開關(guān) IC RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:2 開關(guān)配置:SPDT 開啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-16
MAX14802CCM+ 功能描述:模擬開關(guān) IC 16Ch Low Charge Inj High V A Switch RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:2 開關(guān)配置:SPDT 開啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-16
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*