參數(shù)資料
型號(hào)： MAX1112CPP+
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 3/20頁(yè)
文件大?。?/td> 0K
描述： IC ADC 8BIT LP 20-DIP
標(biāo)準(zhǔn)包裝： 18
位數(shù)： 8
采樣率（每秒）： 50k
數(shù)據(jù)接口： MICROWIRE?，QSPI?，串行，SPI?
轉(zhuǎn)換器數(shù)目： 1
功率耗散（最大）： 680µW
電壓電源： 單電源
工作溫度： 0°C ~ 70°C
安裝類型： 通孔
封裝/外殼： 20-DIP（0.300"，7.62mm）
供應(yīng)商設(shè)備封裝： 20-PDIP
包裝： 管件
輸入數(shù)目和類型： 8 個(gè)單端，單極；8 個(gè)單端，雙極；4 個(gè)偽差分，單極；4 個(gè)偽差分，雙極
MAX1112/MAX1113
+5V, Low-Power, Multi-Channel,
Serial 8-Bit ADCs
______________________________________________________________________________________
11
in control bytes of $FF (hex), which trigger single-
ended, unipolar conversions on CH7 (MAX1112) or
CH3 (MAX1113) in external clock mode without power-
ing down between conversions. In external clock mode,
the SSTRB output pulses high for two clock periods
before the most significant bit (MSB) of the 8-bit con-
version result is shifted out of DOUT. Varying the ana-
log input alters the output code. A total of 10 clock
cycles is required per conversion. All transitions of the
SSTRB and DOUT outputs occur on SCLK’s falling
edge.
How to Start a Conversion
A conversion is started by clocking a control byte into
DIN. With CS low, each rising edge on SCLK clocks a bit
from DIN into the MAX1112/MAX1113’s internal shift reg-
ister. After CS falls, the first arriving logic “1” bit at DIN
defines the MSB of the control byte. Until this first start bit
arrives, any number of logic “0” bits can be clocked into
DIN with no effect. Table 3 shows the control-byte format.
The
MAX1112/MAX1113
are
compatible
with
MICROWIRE, SPI, and QSPI devices. For SPI, select the
correct clock polarity and sampling edge in the SPI con-
trol registers: set CPOL = 0 and CPHA = 0. MICROWIRE,
SPI, and QSPI all transmit a byte and receive a byte at the
same time. Using the Typical Operating Circuit (Figure 3),
the simplest software interface requires three 8-bit trans-
fers to perform a conversion (one 8-bit transfer to config-
ure the ADC, and two more 8-bit transfers to clock out the
1F
0.1F
VDD
DGND
AGND
CS
SCLK
DIN
DOUT
SSTRB
SHDN
+5V
N.C.
0.01F
CH7 (CH3)
COM
REFOUT
REFIN
C1
1F
0V TO
+4.096V
ANALOG
INPUT
OSCILLOSCOPE
CH1
CH2
CH3
CH4
*FULL-SCALE ANALOG INPUT, CONVERSION RESULT = $FF (HEX)
( ) ARE FOR THE MAX1113.
MAX1112
MAX1113
+5V
500kHz
OSCILLATOR
SCLK
SSTRB
DOUT*
Figure 5. Quick-Look Circuit
Table 4. Full-Scale and Zero-Scale Voltages
UNIPOLAR MODE
VREFIN + COM
+VREFIN/2
+ COM
Full Scale
COM
-VREFIN/2
+ COM
Positive
Full Scale
Zero Scale
Zero
Scale
BIPOLAR MODE
Negative
Full Scale
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1112CPP+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 5V Low-Power Multi Ch Serial 8-Bit RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1112D 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:5V, Low-Power, Multi-Channel, Serial 8-Bit ADCs Internal 4.096V Reference
MAX1112EAP 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1112EAP+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 5V Low-Power Multi Ch Serial 8-Bit RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1112EAP+T 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 5V Low-Power Multi Ch Serial 8-Bit RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
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