參數(shù)資料
型號(hào)： MAX110BEWE+
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 11/24頁(yè)
文件大?。?/td> 0K
描述： IC ADC 14BIT 2CH 16-SOIC
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 46
位數(shù)： 14
采樣率（每秒）： 50
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）： 762mW
電壓電源： 單電源
工作溫度： 0°C ~ 70°C
安裝類(lèi)型： 表面貼裝
封裝/外殼： 16-SOIC（0.295"，7.50mm 寬）
供應(yīng)商設(shè)備封裝： 16-SOIC W
包裝： 管件
輸入數(shù)目和類(lèi)型： 4 個(gè)單端，單極；2 個(gè)差分，雙極
MAX110/MAX111
Low-Cost, 2-Channel, ±14-Bit Serial ADCs
______________________________________________________________________________________
19
A 100ms conversion time cannot be achieved with either
10,240 CCPC or 20,480 CCPC modes because fOSC
would be below the minimum 250kHz requirement.
When the gain calibration is performed, the conversion
times change approximately 1% to compensate for the
modulator’s gain error. This slightly degrades the line-
frequency rejection, because the corrected conversion
time is no longer an exact multiple of the line frequency.
Typically, the rejection of 50Hz/60Hz from the converter
is 55dB; i.e., if there is 100mV injection at the reference
or the analog input pin, it will cause an uncertainty of
±0.006%. If the system has large 50Hz/60Hz noise, the
use of internal auto gain calibration is not recommend-
ed. Instead, gain calibration should be done off-chip,
using numerical computation methods.
If you wish to use a configuration other than those sug-
gested in Table 6, you can accomplish similar 50Hz
and 60Hz line-frequency rejection off-chip by averag-
ing several conversions.
__________Applications Information
Layout, Grounding, Bypassing
For minimal noise, bypass each supply to GND with a
0.1F capacitor. A ground plane should also be placed
under the analog circuitry. To minimize the coupling
effects of stray capacitance, keep digital lines as far
from analog components and lines as possible. Figure
10 shows the suggested power-supply and ground-
plane connections.
*R = 10
*OPTIONAL
DIGITAL
CIRCUITRY
POWER
SUPPLIES
VDD
VSS
+5V
DGND
+5V
-5V
GND
4.7
F
0.1
F
0.1
F
4.7
F
MAX110
Figure 10a. MAX110 Power-Supply Grounding Connections
*R = 10
*OPTIONAL
DIGITAL
CIRCUITRY
POWER
SUPPLIES
VDD
AGND
+5V
DGND
+5V
GND
4.7
F
0.1
F
MAX111
Figure 10b. MAX111 Power-Supply Grounding Connections
CCPC = Clock Cycles per Conversion
Table 6. Suggested XCLK Frequencies to Achieve Maximum Rejection of Both 50Hz/60Hz Line
Frequencies
MAX111 (tCONVERT = 200ms)
81,240 CCPC
102,400 CCPC
DIVIDER
RATIO
fXCLK
(MHz)
RELATIVE
ACCURACY
(%)
fXCLK
(MHz)
RELATIVE
ACCURACY
(%)
1:1
0.4062
0.030
0.512
0.030
2:1
0.8124
0.025
1.024
0.025
4:1
1.6248
0.022
2.048
0.023
MAX110 (tCONVERT = 100ms)
81,240 CCPC
102,400 CCPC
DIVIDER
RATIO
fXCLK
(MHz)
RELATIVE
ACCURACY
(%)
fXCLK
(MHz)
RELATIVE
ACCURACY
(%)
1:1
0.8124
0.025
1.024
0.065
2:1
1.6248
0.018
2.048
0.045
4:1
3.2496
0.016
4.096
0.030
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX110BEWE+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 2Ch +/-14Bit Serial 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
MAX110BEWE+T 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 2Ch +/-14Bit Serial 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
MAX110BEWE-T 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
MAX110BMJE 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
MAX110CAP 制造商:MAXIM 制造商全稱(chēng):Maxim Integrated Products 功能描述:Analog-to-Digital Converter， 15-Bit
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