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參數(shù)資料
| 型號： | AD9266BCPZ-20 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 10/32頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 16BIT 20MSPS 32LFCSP |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 位數(shù)： | 16 |
| 采樣率（每秒）： | 20M |
| 數(shù)據(jù)接口： | 串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 功率耗散（最大）： | 63mW |
| 電壓電源： | 模擬和數(shù)字 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 32-WFQFN 裸露焊盤，CSP |
| 供應(yīng)商設(shè)備封裝： | 32-LFCSP-WQ（5x5） |
| 包裝： | 托盤 |
| 輸入數(shù)目和類型： | 2 個單端，單極；1 個差分，單極 |
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AD9266
Data Sheet
Rev. A | Page 18 of 32
For baseband applications below ~10 MHz where SNR is a key
parameter, differential transformer coupling is the recommended
input configuration. An example is shown in Figure 38. To bias
the analog input, the VCM voltage can be connected to the
center tap of the secondary winding of the transformer.
2V p-p
49.9
0.1F
R
C
ADC
VCM
VIN+
VIN–
08678-
008
Figure 38. Differential Transformer-Coupled Configuration
The signal characteristics must be considered when selecting
a transformer. Most RF transformers saturate at frequencies
below a few megahertz (MHz). Excessive signal power can also
cause core saturation, which leads to distortion.
At input frequencies in the second Nyquist zone and above, the
noise performance of most amplifiers is not adequate to achieve
the true SNR performance of the AD9266. For applications above
~10 MHz where SNR is a key parameter, differential double balun
coupling is the recommended input configuration (see Figure 40).
An alternative to using a transformer-coupled input at frequencies
in the second Nyquist zone is to use the AD8352 differential driver.
An example is shown in Figure 41. See the AD8352 data sheet
for more information.
In any configuration, the value of Shunt Capacitor C is dependent
on the input frequency and source impedance and may need to
be reduced or removed. Table 9 displays the suggested values to set
the RC network. However, these values are dependent on the
input signal and should be used only as a starting guide.
Table 9. Example RC Network
Frequency Range (MHz)
R Series
( Each)
C Differential (pF)
0 to 70
33
22
70 to 200
125
Open
Single-Ended Input Configuration
A single-ended input can provide adequate performance in
cost-sensitive applications. In this configuration, SFDR and
distortion performance degrade due to the large input common-
mode swing. If the source impedances on each input are matched,
there should be little effect on SNR performance. Figure 39
shows a typical single-ended input configuration.
1V p-p
R
C
49.
9
0.1F
10F
0.1F
AVDD
1
k
1
k
1
k
1
k
ADC
AVDD
VIN+
VIN–
08678-
009
Figure 39. Single-Ended Input Configuration
ADC
R
0.1F
2V p-p
VCM
C
R
0.1F
S
0.1F
25
S
PA
P
VIN+
VIN–
08678-
010
Figure 40. Differential Double Balun Input Configuration
AD8352
0
CD
RD
RG
0.1F
16
1
2
3
4
5
11
0.1F
10
14
0.1F
8, 13
VCC
200
ANALOG INPUT
R
C
ADC
VCM
VIN+
VIN–
08678-
011
Figure 41. Differential Input Configuration Using the AD8352
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD9266BCPZ-40 | 制造商:Analog Devices 功能描述:16 BIT, 40 MSPS 1.8V SINGLE ADC - Trays 制造商:Analog Devices 功能描述:IC ADC 16BIT 40MSPS 32LFCSP 制造商:Analog Devices Inc. 功能描述:Analog to Digital Converters - ADC 16 Bit 40 MSPS 1.8V Single ADC 制造商:Analog Devices 功能描述:CONVERTER - ADC |
| AD9266BCPZ-65 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16 Bit 65 MSPS 1.8V Single ADC RoHS:否 制造商:Analog Devices 通道數(shù)量: 結(jié)構(gòu): 轉(zhuǎn)換速率: 分辨率: 輸入類型: 信噪比: 接口類型: 工作電源電壓: 最大工作溫度: 安裝風(fēng)格: 封裝 / 箱體: |
| AD9266BCPZ-80 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16 Bit 80 MSPS 1.8V Single ADC RoHS:否 制造商:Analog Devices 通道數(shù)量: 結(jié)構(gòu): 轉(zhuǎn)換速率: 分辨率: 輸入類型: 信噪比: 接口類型: 工作電源電壓: 最大工作溫度: 安裝風(fēng)格: 封裝 / 箱體: |
| AD9266BCPZRL7-20 | 功能描述:IC ADC 16BIT 20MSPS 32LFCSP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 位數(shù):14 采樣率（每秒）:83k 數(shù)據(jù)接口:串行，并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:95mW 電壓電源:雙 ± 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:28-DIP（0.600"，15.24mm） 供應(yīng)商設(shè)備封裝:28-PDIP 包裝:管件 輸入數(shù)目和類型:1 個單端，雙極 |
| AD9266BCPZRL7-40 | 制造商:Analog Devices 功能描述:16 BIT, 40 MSPS 1.8V SINGLE ADC - Tape and Reel 制造商:Analog Devices 功能描述:IC ADC 16BIT 40MSPS 32LFCSP 制造商:Analog Devices Inc. 功能描述:Analog to Digital Converters - ADC 16 Bit 40 MSPS 1.8V Single ADC 制造商:Analog Devices 功能描述:CONVERTER - ADC |
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