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參數(shù)資料
| 型號： | AD7667 |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | 圓形連接器 |
| 英文描述： | Circular Connector; No. of Contacts:8; Series:D38999; Body Material:Metal; Connecting Termination:Crimp; Connector Shell Size:13; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:13-8 |
| 中文描述： | 16位1 MSPS的特區(qū)單極型ADC檔 |
| 文件頁數(shù)： | 22/23頁 |
| 文件大小： | 336K |
| 代理商： | AD7667 |
REV. PrA
PRELIMINARY TECHNICAL DATA
–22–
AD7667
at right angles to each other. T his will reduce the effect of
feedthrough through the board.
T he power supplies lines to the AD7667 should use as
large trace as possible to provide low impedance paths and
reduce the effect of glitches on the power supplies lines.
Good decoupling is also important to lower the supplies
impedance presented to the AD7667 and reduce the magni-
tude of the supply spikes. Decoupling ceramic capacitors,
typically 100 nF, should be placed on each power supplies
pins AVDD, DVDD, and OVDD close to, and ideally right
up against, these pins and their corresponding ground pins.
Additionally, low ESR 10 μF capacitors should be located in
the vicinity of the ADC to further reduce low frequency
ripple.
T he DVDD supply of the AD7667 can be either a separate
supply or come from the analog supply AVDD or the digi-
tal interface supply OVDD. When the system digital supply
is noisy, or fast switching digital signals are present, it is
recommended that if no separate supply available, connect
the DVDD digital supply to the analog supply, AVDD,
through an RC filter as shown in Figure 5, and connect
the system supply to the interface digital supply, OVDD,
and the remaining digital circuitry. When DVDD is powered
from the system supply, it is useful to insert a bead to fur-
ther reduce high-frequency spikes.
T he AD7667 has five different ground pins: INGND, REF-
GND, AGND, DGND, and OGND. INGND is used to
sense the analog input signal. REFGND senses the refer-
ence voltage and should be a low impedance return to the
reference because it carries pulsed currents. AGND is the
ground to which most internal ADC analog signals are
referenced. T his ground must be connected with the least
resistance to the analog ground plane. DGND must be
tied to the analog or digital ground plane depending on the
configuration. OGND is connected to the digital system
ground.
E valuating the AD 7667 Performance
A recommended layout for the AD7667 is outlined in the
evaluation board for the AD7667. T he evaluation board
package includes a fully assembled and tested evaluation
board, documentation, and software for controlling the board
from a PC via the Eval-Control Board.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD7667ACP | 制造商:Analog Devices 功能描述:ADC Single SAR 1Msps 16-bit Parallel/Serial 48-Pin LFCSP EP 制造商:Rochester Electronics LLC 功能描述:1MSPS, 16-BIT ADC INT REF, 2.5LSB - Bulk 制造商:Analog Devices 功能描述:16BIT ADC INT REF 7667 LFSCP-48 |
| AD7667ACPRL | 制造商:Analog Devices 功能描述:ADC Single SAR 1Msps 16-bit Parallel/Serial 48-Pin LFCSP EP T/R |
| AD7667ACPZ | 功能描述:IC ADC 16BIT UNIPOLAR 48LFCSP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:PulSAR® 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個單端，單極；1 個單端，雙極 |
| AD7667ACPZRL | 功能描述:IC ADC 16BIT UNIPOLAR 48LFCSP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:PulSAR® 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個單端，單極；1 個單端，雙極 |
| AD7667AST | 制造商:Analog Devices 功能描述:ADC Single SAR 1Msps 16-bit Parallel/Serial 48-Pin LQFP 制造商:Rochester Electronics LLC 功能描述:1MSPS, 16-BIT ADC INT REF, 2.5LSB - Tape and Reel 制造商:Analog Devices 功能描述:16BIT ADC INT REF 7667 LQFP48 |
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