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參數(shù)資料
| 型號(hào)： | AD9768SE |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | DAC |
| 英文描述： | Ultrahigh Speed IC D/A Converter |
| 中文描述： | PARALLEL, 8 BITS INPUT LOADING, 0.005 us SETTLING TIME, 8-BIT DAC, CQCC20 |
| 封裝： | CERAMIC, LCC-20 |
| 文件頁數(shù)： | 1/4頁 |
| 文件大小： | 103K |
| 代理商： | AD9768SE |
FUNCT IONAL BLOCK DIAGRAM
REV. A
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
Utrahigh Speed IC
D/AConverter
AD9768
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
FEATURES
5 ns Settling Time
100 MSPS Update Rate
20 mA Output Current
ECL-Compatible
40 MHz Multiplying Mode
APPLICATIONS
Raster Scan & Vector Graphic Displays
High Speed Waveform Generation
Digital VCOs
Ultrafast Digital Attenuators
GE NE RAL DE SCRIPT ION
T he Analog Devices AD9768SD D/A converter is a monolithic
current-output converter which can accept 8 bits of ECL-level
digital input voltages and convert them into analog signals at
update rates as high as 100 MSPS. In addition to its use as a
standard D/A converter, it can also be utilized as a two-quadrant
multiplying D/A at multiplying bandwidths as high as 40 MHz.
An inherently low glitch design is used, and the complementary
current outputs are suitable for driving transmission lines
directly. Nominal full-scale output is 20 mA, which corresponds
to a 1 volt drop across a 50
load, or
±
1 volt across 100
returned to +1 volt. T he actual output current is determined by
the on-chip reference voltage (V
REF
<
–1.26 V) and an external
current setting resistor, R
SET
.
Full-scale output current I
OUT
with digital “1” at all inputs is
calculated with the equation:
I
OUT
=
4
×
V
RET
±
V
REF
R
SET
T he setting resistor R
SET
and the output load resistor should
both have low temperature coefficients. A complementary
I
OUT
is also provided.
AD9768JD/SD PIN CONNE CT IONS
T he reference voltage source is a modified bandgap type
and is nominally –1.26 volts. T his reference supply requires
no external regulation. T o reduce the possibility of noise
generation and/or instability, Pin 15 (REFERENCE OUT )
can be decoupled using a high-quality ceramic chip
capacitor. Stabilization of the internal loop amplifier is by a
single capacitor connected from Pin 17 (COMPENSAT ION)
to ground. T he minimum value for this capacitor is 3900 pF,
although a 0.01
μ
F ceramic chip capacitor is recommended.
T he incredible speed characteristics of the AD9768SD D/A
converter make it attractive for a wide range of high speed
applications. T he ability of the unit to operate as a two-
quadrant multiplying D/A converter adds another dimen-
sion to its usefulness and makes the AD9768SD a truly
versatile device.
AD9768SE PIN CONNE CT IONS
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| AD976AANZ | 功能描述:IC ADC 16BIT 200KSPS 28-DIP 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:microPOWER™ 位數(shù):8 采樣率（每秒）:1M 數(shù)據(jù)接口:串行，SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:- 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:24-VQFN 裸露焊盤（4x4） 包裝:Digi-Reel® 輸入數(shù)目和類型:8 個(gè)單端，單極 產(chǎn)品目錄頁面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6 |
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| AD976AAR | 功能描述:IC ADC 16BIT 200KSPS 28-SOIC RoHS:否 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(gè)單端，雙極 |
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