- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄10049 > AD9640ABCPZ-80 (Analog Devices Inc)IC ADC 14BIT 80MSPS 64LFCSP PDF資料下載
參數(shù)資料
| 型號(hào)： | AD9640ABCPZ-80 |
| 廠商： | Analog Devices Inc |
| 文件頁(yè)數(shù)： | 19/52頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 14BIT 80MSPS 64LFCSP |
| 設(shè)計(jì)資源： | Interfacing ADL5534 to AD9640 High Speed ADC (CN0049) |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 位數(shù)： | 14 |
| 采樣率（每秒）： | 80M |
| 數(shù)據(jù)接口： | 串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 2 |
| 功率耗散（最大）： | 492mW |
| 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： | 64-VFQFN 裸露焊盤，CSP |
| 供應(yīng)商設(shè)備封裝： | 64-LFCSP-VQ（9x9） |
| 包裝： | 托盤 |
| 輸入數(shù)目和類型： | 4 個(gè)單端，單極；2 個(gè)差分，單極 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)當(dāng)前第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)
AD9640
Rev. B | Page 26 of 52
The output common-mode voltage of the AD8138 is easily set
with the CML pin of the AD9640 (see Figure 46), and the driver
can be configured in a Sallen-Key filter topology to provide
band limiting of the input signal.
AVDD
1V p-p
49.9
523
0.1F
R
C
499
499
499
AD8138
06
54
7-
02
5
AD9640
VIN+
VIN–
CML
Figure 46. Differential Input Configuration Using the AD8138
For baseband applications where SNR is a key parameter,
differential transformer coupling is the recommended input
configuration. An example is shown in Figure 47. To bias the
analog input, the CML voltage can be connected to the center
tap of the transformer’s secondary winding.
2V p-p
49.9
0.1F
R
C
06
54
7-
0
26
AD9640
VIN+
VIN–
CML
Figure 47. Differential Transformer-Coupled Configuration
The signal characteristics must be considered when selecting
a transformer. Most RF transformers saturate at frequencies
below a few MHz, and 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 AD9640. For applications where
SNR is a key parameter, differential double balun coupling is the
recommended input configuration (see Figure 49 for an example).
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 50. 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 13 displays recommended 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 13. Example RC Network
Frequency Range (MHz)
R Series
(Ω Each)
C Differential (pF)
0 to 70
33
15
70 to 200
33
5
200 to 300
15
5
>300
15
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 48 details a typical
single-ended input configuration.
1V p-p
R
C
49.9
0.1F
10F
0.1F
AVDD
1k
1k
1k
1k
AD9640
AVDD
06
54
7-
07
1
VIN+
VIN–
Figure 48. Single-Ended Input Configuration
AD9640
R
0.1F
2V p-p
VIN+
VIN–
CML
C
R
0.1F
S
0.1F
065
47-
02
8
25
25
S
PA
P
Figure 49. Differential Double Balun Input Configuration
AD9640
AD8352
0
R
0
CD
RD
RG
0.1F
VIN+
VIN–
CML
C
0.1F
16
1
2
3
4
5
11
R
0.1F
10
14
0.1F
8, 13
VCC
200
200
06
54
7-
07
0
ANALOG INPUT
Figure 50. Differential Input Configuration Using the AD8352
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADM5170AP-REEL | IC TXRX RS232/423 OCTAL 28PLCC |
| MS27508E12A98S | CONN RCPT 10POS BOX MNT W/SCKT |
| GTC06AF-16-11P | CONN PLUG 2POS STRAIGHT W/PINS |
| MS27508E22B55PA | CONN RCPT 55POS BOX MNT W/PINS |
| MS27467E9A35S | CONN PLUG 6POS STRAIGHT W/SCKT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD9640ABCPZRL7-105 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 14Bit 105Msps Dual 1.8V PB Free 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: |
| AD9640ABCPZRL7-125 | 功能描述:14 Bit Analog to Digital Converter 2 Input 2 Pipelined 64-LFCSP-VQ (9x9) 制造商:analog devices inc. 系列:- 包裝:帶卷（TR） 零件狀態(tài):在售 位數(shù):14 采樣率（每秒）:125M 輸入數(shù):2 輸入類型:差分，單端 數(shù)據(jù)接口:并聯(lián) 配置:S/H-ADC 無(wú)線電 - S/H:ADC:1:1 A/D 轉(zhuǎn)換器數(shù):2 架構(gòu):管線 參考類型:外部， 內(nèi)部 電壓 - 電源，模擬:1.7 V ~ 1.9 V 電壓 - 電源，數(shù)字:1.7 V ~ 1.9 V 特性:同步采樣 工作溫度:-40°C ~ 85°C 封裝/外殼:64-VFQFN 裸露焊盤，CSP 供應(yīng)商器件封裝:64-LFCSP-VQ（9x9） 標(biāo)準(zhǔn)包裝:750 |
| AD9640ABCPZRL7-80 | 制造商:AD 制造商全稱:Analog Devices 功能描述:14-Bit, 80/105/125/150 MSPS, 1.8 V Dual Analog-to-Digital Converter |
| AD9640BCPZ-105 | 制造商:Analog Devices 功能描述:ADC Dual Pipelined 105Msps 14-bit Parallel 64-Pin LFCSP EP 制造商:Analog Devices 功能描述:IC ADC 14BIT 105MSPS LFCSP-64 |
| AD9640BCPZ-125 | 制造商:Analog Devices 功能描述:IC ADC 14BIT 125MSPS LFCSP-64 制造商:Analog Devices 功能描述:IC, ADC, 14BIT, 125MSPS, LFCSP-64, Resolution (Bits):14bit, Sampling Rate:150MSP |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。