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參數(shù)資料
| 型號(hào)： | AD9281-EB |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Dual Channel 8-Bit Resolution CMOS ADC |
| 中文描述： | 雙通道8位分辨率的CMOS模數(shù)轉(zhuǎn)換器 |
| 文件頁數(shù)： | 11/19頁 |
| 文件大小： | 406K |
| 代理商： | AD9281-EB |
AD9281
–11–
REV. E
QREFT
QREFB
IREFT
0.1
m
F
10
m
F
0.1
m
F
0.1
m
F
AD9281
REFSENSE
AVSS
1V
0.1
m
F
10
m
F
IREFB
VREF
0.1
m
F
0.1
m
F
10k
V
10k
V
ADC
CORE
INTERNAL
CONTROL
LOGIC
0.1
m
F
1.0
m
F
Figure 26. Reference Buffer Equivalent Circuit and
External Decoupling Recommendation
For best results in both noise suppression and robustness
against crosstalk, the 4-capacitor buffer decoupling arrangement
shown in Figure 26 is recommended. This decoupling should
–3
–0.5
T
–13
–23
–33
–43
–53
–63
–73
0
0.5
1
1.5
CML – V
2V
1V
a. Differential Input, 3 V Supplies
–35
–0.5
T
–40
–45
–50
–55
–60
–65
–70
0
0.5
1
1.5
CML – V
2
2.5
1V
2V
b. Differential Input, 5 V Supplies
Figure 27. THD vs. CML Input Span and Power Supply (Analog Input = 1 MHz)
–15
–0.5
T
–25
–35
–45
–55
–65
0
0.5
1
1.5
CML – V
2V
1V
c. Single-Ended Input, 3 V Supplies
–15
–0.5
T
–25
–35
–45
–55
–65
0
0.5
1
1.5
CML – V
2V
1V
2
2.5
d. Single-Ended Input, 5 V Supplies
feature chip capacitors located close to the converter IC. The
capacitors are connected to either IREFT/IREFB or QREFT/
QREFB. A connection to both sides is not required.
COMMON-MODE PERFORMANCE
Attention to the common-mode point of the analog input volt-
age can improve the performance of the AD9281. Figure 27
illustrates THD as a function of common-mode voltage (center
point of the analog input span) and power supply.
Inspection of the curves will yield the following conclusions:
1. An AD9281 running with AVDD = 5 V is the easiest to
drive.
2. Differential inputs are the most insensitive to common-mode
voltage.
3. An AD9281 powered by AVDD = 3 V and a single ended
input, should have a 1 V span with a common-mode voltage
of 0.75 V.
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| AD9281ARS | Dual Channel 8-Bit Resolution CMOS ADC |
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相關(guān)代理商/技術(shù)參數(shù) |
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| AD9283 | 制造商:AD 制造商全稱:Analog Devices 功能描述:8-Bit, 50 MSPS/80 MSPS/100 MSPS 3 V A/D Converter |
| AD9283/PCB | 制造商:Analog Devices 功能描述:8 BIT 100 MSPS 3.3V A/D CONVERTER - Bulk |
| AD9283BRS | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Analog Devices 功能描述: |
| AD9283BRS-100 | 功能描述:IC ADC 8BIT 100MSPS 3V 20-SSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 位數(shù):12 采樣率（每秒）:3M 數(shù)據(jù)接口:- 轉(zhuǎn)換器數(shù)目:- 功率耗散（最大）:- 電壓電源:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應(yīng)商設(shè)備封裝:SOT-23-6 包裝:帶卷 (TR) 輸入數(shù)目和類型:- |
| AD9283BRS-100Z | 制造商:Analog Devices 功能描述:ADC 8BIT 100MSPS 0.75LSB 20SSOP 制造商:Analog Devices 功能描述:ADC, 8BIT, 100MSPS, 0.75LSB, 20SSOP 制造商:Analog Devices 功能描述:ADC, 8BIT, 100MSPS, 0.75LSB, 20SSOP, Resolution (Bits):8bit, Sampling Rate:100MS 制造商:Analog Devices 功能描述:ADC, 8BIT, 100MSPS, 0.75LSB, 20SSOP, Resolution (Bits):8bit, Sampling Rate:100MSPS, Supply Voltage Type:Single, Supply Voltage Min:2.7V, Supply Voltage Max:3.6V, Digital IC Case Style:SSOP, No. of Pins:20, Input Channel , RoHS Compliant: Yes |
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