AD9040 Analog Devices, AD9040 Datasheet

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AD9040

Manufacturer Part Number
AD9040
Description
10-Bit 40 MSPS A/D Converter
Manufacturer
Analog Devices
Datasheet

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a
GENERAL DESCRIPTION
The AD9040A is a complete 10-bit monolithic sampling analog-
to-digital converter (ADC) with on-board track-and-hold and
reference. The unit is designed for low cost, high performance
applications and requires only an encode signal to achieve
40 MSPS sample rates with 10-bit resolution.
Digital inputs and outputs are CMOS compatible; the analog
input requires a signal of 2 V p-p amplitude. The two-step
architecture used in the AD9040A is optimized to provide the
best dynamic performance available while maintaining low
power requirements of only 940 mW typically; maximum dissi-
pation is 1.1 watt at 40 MSPS.
The signal-to-noise ratio (SNR), including harmonics, is 53 dB,
or 8.5 ENOB, when sampling an analog input of 10.3 MHz at
40 MSPS. Competitive devices perform at less than 7.5 ENOB
and require external references and larger input signals.
The AD9040A A/D converter is available as either a 28-lead
plastic DIP or a 28-lead SOIC. The two models operate over a
commercial temperature range of 0 C to +70 C. Contact the
factory regarding availability of ceramic military temperature
range devices.
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
FEATURES
Low Power: 940 mW
53 dB SNR @ 10 MHz A
On-Chip T/H, Reference
CMOS-Compatible
2 V p-p Analog Input
Fully Characterized Dynamic Performance
APPLICATIONS
Ultrasound Medical Imaging
Digital Oscilloscopes
Professional Video
Digital Communications
Advanced Television (MUSE Decoders)
Instrumentation
IN
PRODUCT HIGHLIGHTS
1. CMOS compatible logic for direct interface to ASICs.
2. On-board T/H provides excellent high frequency perfor-
3. High input impedance and 2 volt p-p input range reduce
4. Easy to use; no cumbersome external voltage references
5. Available in 28-lead plastic DIP and SOIC packages.
6. Evaluation board includes AD9040AJR, reconstruction
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
GND
mance on analog inputs, critical for communications and
medical imaging applications.
need for external amplifiers.
required, allowing denser packing of ADCs for multichannel
applications.
DAC, and latches. Space is available near the analog input
and digital outputs of the converter for additional circuits.
Order as part number AD9040A/PCB (schematic shown in
data sheet).
BP
V
V
OUT
REF
REF
A
IN
REFERENCE
BANDGAP
FUNCTIONAL BLOCK DIAGRAM
AD9040A
ENCODE
AMP
REF
T/H
World Wide Web Site: http://www.analog.com
5-BIT
ADC
DECODE
LOGIC
T/H
10-Bit 40 MSPS
A/D Converter
CORRECTION
© Analog Devices, Inc., 1999
ERROR
AD9040A
ARRAY
AMP
6-BIT
ADC
DECODE
LOGIC
10

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