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參數(shù)資料
| 型號(hào)： | MAX1446 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 10-Bit, 60Msps, 3.0V, Low-Power ADC with Internal Reference |
| 中文描述： | 10位、60Msps、3.0V、低功耗ADC，內(nèi)置基準(zhǔn) |
| 文件頁數(shù)： | 12/16頁 |
| 文件大小： | 282K |
| 代理商： | MAX1446 |
10-Bit, 60Msps, 3.0V, Low-Power
ADC with Internal Reference
12
______________________________________________________________________________________
Figure 6 also shows the relationship between the input
clock parameters and the valid output data.
Applications Information
Figure 7 shows a typical application circuit containing a
single-ended to differential converter. The internal refer-
ence provides a V
DD
/2 output voltage for level shifting
purposes. The input is buffered and then split to a volt-
age follower and inverter. A lowpass filter follows the op
amps to suppress some of the wideband noise associ-
ated with high-speed op amps. The user may select the
R
ISO
and C
IN
values to optimize the filter performance
to suit a particular application. For the application in
Figure 7, an R
ISO
of 50
is placed before the capaci-
tive load to prevent ringing and oscillation. The 22pF
C
IN
capacitor acts as a small bypassing capacitor.
Using Transformer Coupling
An RF transformer (Figure 8) provides an excellent
solution for converting a single-ended source signal to
a fully differential signal, required by the MAX1446 for
optimum performance. Connecting the transformer
’
s
center tap to COM provides a V
DD
/2 DC level shift to
80
70
60
50
40
20
40
30
50
60
70
CLOCK DUTY CYCLE (%)
S
f
IN
= 12.5MHz AT -0.5dBFS
Figure 3a. SFDR vs. Clock Duty Cycle (Differential Input)
40
50
45
60
55
65
70
20
40
30
50
60
70
CLOCK DUTY CYCLE (%)
S
f
IN
= 12.5MHz AT -0.5dBFS
Figure 3b. SNR vs. Clock Duty Cycle (Differential Input)
-40
-50
-60
-70
-80
20
40
30
50
60
70
CLOCK DUTY CYCLE (%)
T
f
IN
= 12.5MHz AT -0.5dBFS
Figure 4a. THD vs. Clock Duty Cycle (Differential Input)
40
50
45
60
55
65
70
20
40
30
50
60
70
CLOCK DUTY CYCLE (%)
S
f
IN
= 12.5MHz AT -0.5dBFS
Figure 4b. SINAD vs. Clock Duty Cycle (Differential Input)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1446EHJ | 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 |
| MAX1446EHJ+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 60Msps 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 |
| MAX1446EHJ+T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 60Msps 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 |
| MAX1446EHJ-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 |
| MAX1446GHJ+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 60Msps 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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