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參數(shù)資料
| 型號(hào)： | AD9633BCPZRL7-80 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 16/40頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 12BIT SRL 80MSPS 48LFCSP |
| 標(biāo)準(zhǔn)包裝： | 750 |
| 位數(shù)： | 12 |
| 采樣率（每秒）： | 80M |
| 數(shù)據(jù)接口： | LVDS，串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 4 |
| 功率耗散（最大）： | 389mW |
| 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： | 48-WFQFN 裸露焊盤，CSP |
| 供應(yīng)商設(shè)備封裝： | 48-LFCSP-WQ（7x7） |
| 包裝： | 帶卷 (TR) |
| 輸入數(shù)目和類型： | 4 個(gè)差分，雙極 |
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Data Sheet
AD9633
Rev. 0 | Page 23 of 40
Differential Input Configurations
There are several ways to drive the AD9633 either actively or
passively. However, optimum performance is achieved by driving
the analog inputs differentially. Using a differential double balun
configuration to drive the AD9633 provides excellent perfor-
mance and a flexible interface to the ADC (see Figure 57) for
baseband applications.
For applications where SNR is a key parameter, differential trans-
former coupling is the recommended input configuration (see
Figure 58), because the noise performance of most amplifiers is
not adequate to achieve the true performance of the AD9633.
Regardless of the configuration, the value of the shunt capacitor,
C, is dependent on the input frequency and may need to be
reduced or removed.
It is not recommended to drive the AD9633 inputs single-ended.
VOLTAGE REFERENCE
A stable and accurate 1.0 V voltage reference is built into the
AD9633. VREF can be configured using either the internal 1.0 V
reference or an externally applied 1.0 V reference voltage. The
various reference modes are summarized in the Internal Reference
Connection section and the External Reference Operation
section. The VREF pin should be externally decoupled to
ground with a low ESR, 1.0 μF capacitor in parallel with a low
ESR, 0.1 μF ceramic capacitor.
Internal Reference Connection
A comparator within the AD9633 detects the potential at the
SENSE pin and configures the reference into two possible modes,
which are summarized in Table 9. If SENSE is grounded, the
reference amplifier switch is connected to the internal resistor
divider (see Figure 56), setting VREF to 1.0 V.
Table 9. Reference Configuration Summary
Selected
Mode
SENSE Voltage (V)
Resulting
VREF (V)
Resulting
Differential
Span (V p-p)
Fixed
Internal
Reference
AGND to 0.2
1.0 internal
2.0
Fixed
External
Reference
AVDD
1.0 applied
to external
VREF pin
2.0
VREF
SENSE
0.5V
ADC
SELECT
LOGIC
0.1F
1.0F
VIN–A/VIN–B
VIN+A/VIN+B
ADC
CORE
10
07
3-
06
0
Figure 56. Internal Reference Configuration
ADC
R
0.1F
2V p-p
VCM
C
*C1
C
R
0.1F
33
200
33
VIN+x
VIN–x
1
00
73-
05
9
ET1-1-I3
C
5pF
R
*C1 IS OPTIONAL
Figure 57. Differential Double Balun Input Configuration for Baseband Applications
2V p-p
R
*C1
*C1 IS OPTIONAL
49.9
0.1μF
ADT1-1WT
1:1 Z RATIO
VIN–x
ADC
VIN+x
*C1
C
VCM
100
73-
056
33
200
0.1F
5pF
Figure 58. Differential Transformer-Coupled Configuration
for Baseband Applications
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD9634 | 制造商:AD 制造商全稱:Analog Devices 功能描述:12-Bit, 170 MSPS/210 MSPS/250 MSPS |
| AD9634-170EBZ | 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 12 Bit 170 Msps ADC RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評(píng)估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V |
| AD9634-210EBZ | 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 12 Bit 210 Msps ADC RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評(píng)估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V |
| AD9634-250EBZ | 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 12 Bit 250 Msps ADC RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評(píng)估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V |
| AD9634BCPZ-170 | 功能描述:IC ADC 12BIT 170MSPS 32-LFCSP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 其它有關(guān)文件:TSA1204 View All Specifications 標(biāo)準(zhǔn)包裝:1 系列:- 位數(shù):12 采樣率（每秒）:20M 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:155mW 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:48-TQFP 供應(yīng)商設(shè)備封裝:48-TQFP（7x7） 包裝:Digi-Reel® 輸入數(shù)目和類型:4 個(gè)單端，單極；2 個(gè)差分，單極 產(chǎn)品目錄頁面:1156 (CN2011-ZH PDF) 其它名稱:497-5435-6 |
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