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Analog Devices - Monolithic ADC

Numéro de référence AD9042
Description Monolithic ADC
Fabricant Analog Devices 
Logo Analog Devices 





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AD9042 fiche technique
FEATURES
41 MSPS minimum sample rate
80 dB spurious-free dynamic range
595 mW power dissipation
Single 5 V supply
On-chip track-and-hold (T/H) and reference
Twos complement output format
CMOS-compatible output levels
APPLICATIONS
Cellular/PCS base stations
GPS anti jamming receivers
Communications receivers
Spectrum analyzers
Electro-optics
Medical imaging
ATE
GENERAL DESCRIPTION
The AD9042 is a high speed, high performance, low power,
monolithic 12-bit analog-to-digital converter (ADC). All
necessary functions, including track-and-hold (T/H) and
reference, are included on chip to provide a complete conversion
solution. The AD9042 operates from a single 5 V supply and
provides CMOS-compatible digital outputs at 41 MSPS.
Designed specifically to address the needs of wideband, multi-
channel receivers, the AD9042 maintains 80 dB spurious-free
dynamic range (SFDR) over a bandwidth of 20 MHz. Noise
performance is also exceptional; typical signal-to-noise ratio
(SNR) is 68 dB.
The AD9042 is built on a high speed complementary bipolar
process (XFCB) used by Analog Devices, Inc., and uses an
innovative multipass architecture. Units are packaged in a
44-lead LQFP low profile quad flat package. The AD9042
12-Bit, 41 MSPS
Monolithic ADC
AD9042
AIN
VOFFSET
VREF
ENCODE
ENCODE
FUNCTIONAL BLOCK DIAGRAM
AVCC
DVCC
A1 TH1
TH2
TH3 A2
ADC
2.4V
REFERENCE
ADC
DAC
6
AD9042
7
INTERNAL
TIMING MSB
DIGITAL ERROR CORRECTION LOGIC
LSB
GND
D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Figure 1.
industrial grade is specified from −40°C to +85°C. However,
the AD9042 was designed to perform over the full military
temperature range (−55°C to +125°C); consult the factory for
military grade product options.
PRODUCT HIGHLIGHTS
1. Guaranteed sample rate is 41 MSPS.
2. Dynamic performance specified over entire Nyquist band;
spurious signals 80 dBc typical for −1 dBFS input signals.
3. Low power dissipation: 595 mW off a single 5 V supply.
4. Reference and track-and-hold included on chip.
5. Packaged in 44-lead LQFP.
Rev. B
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 that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113 ©1995–2009 Analog Devices, Inc. All rights reserved.

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