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參數資料
| 型號： | AD9101 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 125 MSPS Monolithic Sampling Amplifier(125MSPS單片采樣放大器) |
| 中文描述： | 125 MSPS的采樣單片放大器（125MSPS單片采樣放大器） |
| 文件頁數： | 1/12頁 |
| 文件大小： | 213K |
| 代理商： | AD9101 |
REV. 0
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
125 MSPS Monolithic
Sampling Amplifier
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
World Wide Web Site: http://www.analog.com
Fax: 617/326-8703
Analog Devices, Inc., 1997
FUNCT IONAL BLOCK DIAGRAM
CLOCK
CLOCK
V
IN
C
HOLD
4X
AMP
–
+
RTN
R
3R
–
+
SAMPLER
AD9101
V
OUT
FEATURES
350 MHz Sampling Bandwidth
125 MHz Sampling Rate
Excellent Hold Mode Distortion
–75 dB @ 50 MSPS (25 MHz V
IN
)
–57 dB @ 125 MSPS (50 MHz V
IN
)
7 ns Acquisition Time to 0.1%
<1 ps Aperture J itter
66 dB Feedthrough Rejection @ 50 MHz
3.3 nV/
√
Hz
Spectral Noise Density
APPLICATIONS
Direct IF Sampling
Digital Sampling Oscilloscopes
HDTV Cameras
Peak Detectors
Radar/EW/ECM
Spectrum Analysis
Test Equipment/CCD Testers
DDS DAC Deglitcher
GE NE RAL DE SCRIPT ION
T he AD9101 is an extremely accurate, general purpose, high
speed sampling amplifier. Its fast and accurate acquisition speed
allows for a wide range of frequency vs. resolution performance.
T he AD9101 is capable of 8 to 12 bits of accuracy at clock rates
of 125 MSPS or 50 MSPS, respectively. T his level of perfor-
mance makes it an ideal driver for almost all 8- to 12-bit A/D
encoders on the market today.
In effect, the AD9101 is a track-and-hold with a post amplifier.
T his configuration allows the front end sampler to operate at
relatively low signal amplitudes. T his results in dramatic im-
provement in both track and hold mode distortion while keeping
power low.
T he gain-of-four output amplifier has been optimized for fast
and accurate large signal step settling characteristics even when
heavily loaded. T his amplifier’s fast Settling T ime Linearity
(ST L) characteristic causes the amplifier to be transparent to
the low signal level distortion of the sampler. When sampled,
output distortion levels reflect only the distortion performance
of the sampler.
Dramatic SNR and distortion improvements can be realized
when using the AD9101 with high speed flash converters. Flash
converters generally have excellent linearity at dc and low fre-
quencies. However, as signal slew rate increases, their perfor-
mance degrades due to the internal comparators’ aperture delay
variations and finite gain bandwidth product.
T he benefits of using a track-and-hold ahead of a flash converter
have been well known for many years. However, before the
AD9101, there was no track-and-hold amplifier with sufficient
bandwidth and linearity to markedly increase the dynamic per-
formance of such flashes as the AD9002, AD9012, AD9020,
and AD9060.
A new application made possible by the AD9101 is direct IF-
to-digital conversion. Using the Nyquist principle, the IF
frequency can be rejected and the baseband signal can be
recovered. As an example, a 40 MHz IF is modulated by a
10 MHz bandwidth signal. By sampling at 25 MSPS, the signal
of interest is detected.
T he AD9101 is offered in commercial and military temperature
ranges. Commercial versions include the AD9101AR in plastic
SOIC and AD9101AE in ceramic LCC. Military devices are
available in ceramic LCC. Contact the factory for availability of
versions in DIP and/or military versions.
PRODUCT HIGHLIGHT S
1. Guaranteed Hold-Mode Distortion
2. 125 MHz Sampling Rate to 8 Bits; 50 MHz to 12 Bits
3. 350 MHz Sampling Bandwidth
4. Super-Nyquist Sampling Capability
5. Output Offset Adjustable
AD9101
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相關代理商/技術參數 |
參數描述 |
|---|---|
| AD9101AE | 制造商:AD 制造商全稱:Analog Devices 功能描述:125 MSPS Monolithic Sampling Amplifier |
| AD9101AR | 制造商:Analog Devices 功能描述: |
| AD9101AR-REEL | 制造商:Analog Devices 功能描述:SAMPLE AND HOLD 1CH 0.016US 20SOIC W - Tape and Reel |
| AD9101ARZ | 制造商:Analog Devices 功能描述:- Bulk |
| AD9101SE | 制造商:AD 制造商全稱:Analog Devices 功能描述:125 MSPS Monolithic Sampling Amplifier |
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