參數(shù)資料
型號(hào)： MAX1449EHJ
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類(lèi)： ADC
英文描述： Analog-to-Digital Converter， 10-Bit
中文描述： 1-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP32
封裝： 5 X 5 MM, 1 MM HEIGHT, MS-026, TQFP-32
文件頁(yè)數(shù)： 14/18頁(yè)
文件大?。?/td> 603K
代理商： MAX1449EHJ
M
10-Bit, 105Msps, Single +3.3V, Low-Power
ADC with Internal Reference
14
______________________________________________________________________________________
the use of a split ground plane arranged to match the
physical location of the analog ground (GND) and the
digital output driver ground (OGND) on the ADC's
package. The two ground planes should be joined at a
single point, such that the noisy digital ground currents
do not interfere with the analog ground plane. The ideal
location of this connection can be determined experi-
mentally at a point along the gap between the two
ground planes, which produces optimum results. Make
this connection with a low-value, surface-mount resistor
(1
to 5
), a ferrite bead or a direct short. Alternatively,
all ground pins could share the same ground plane, if
the ground plane is sufficiently isolated from any noisy
digital systems ground plane (e.g., downstream output
buffer or DSP ground plane). Route high-speed digital
signal traces away from sensitive analog traces. Keep
all signal lines short and free of 90
°
turns.
Static Parameter Definitions
Integral Nonlinearity (INL)
Integral nonlinearity is the deviation of the values on an
actual transfer function from a straight line. This straight
line can be either a best straight-line fit or a line drawn
between the endpoints of the transfer function, once
offset and gain errors have been nullified. The static lin-
earity parameters for the MAX1449 are measured using
the best straight-line fit method.
INPUT
300
-5V
+5V
0.1
μ
F
0.1
μ
F
0.1
μ
F
C
IN
22pF
C
IN
22pF
R
ISO
50
R
ISO
50
-5V
600
300
300
IN+
IN-
LOWPASS FILTER
COM
600
+5V
-5V
0.1
μ
F
600
300
600
300
0.1
μ
F
0.1
μ
F
0.1
μ
F
+5V
0.1
μ
F
300
MAX4108
MAX1449
MAX4108
MAX4108
LOWPASS FILTER
Figure 7. Typical Application Circuit Using the Internal Reference
相關(guān)PDF資料
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1449EHJ+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 105Msps 3V High Speed 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
MAX1449EHJ+T 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 105Msps 3V High Speed 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
MAX1449EHJ-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
MAX144ACPA 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
MAX144ACPA+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 2Ch 108ksps 5.25V High Speed 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
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