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Analog Devices Semiconductor Electronic Components Datasheet

AD9040A Datasheet

10-Bit 40 MSPS A/D Converter

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10-Bit 40 MSPS
A/D Converter
AD9040A
FEATURES
Low Power: 940 mW
53 dB SNR @ 10 MHz AIN
On-Chip Track-and-Hold, Reference
CMOS Compatible
2 V p-p Analog Input
Fully Characterized Dynamic Performance
AIN
GND
FUNCTIONAL BLOCK DIAGRAM
ENCODE
T/H
AMP
ARRAY
T/H T/H
APPLICATIONS
Ultrasound Medical Imaging
Digital Oscilloscopes
Professional Video
Digital Communications
Advanced Television (MUSE Decoders)
OInstrumentation
VOUT
BAND GAP
REFERENCE
5-BIT
ADC
6-BIT
ADC
VREF
BPREF
REF
AMP
AD9040A
DECODE
LOGIC
ERROR
CORRECTION
DECODE
LOGIC
10
BSOGENERAL DESCRIPTION
The AD9040A is a complete 10-bit monolithic sampling analog-
Lto-digital converter (ADC) with on-board track-and-hold (T/H)
and reference. The unit is designed for low cost, high perfor-
Emance applications and requires only an encode signal to achieve
T40 MSPS sample rates with 10-bit resolution.
EDigital inputs and outputs are CMOS compatible; the analog
PRODUCT HIGHLIGHTS
1. CMOS compatible logic for direct interface to ASICs.
2. On-board track-and-hold provides excellent high frequency
performance on analog inputs, critical for communications
and medical imaging applications.
3. High input impedance and 2 V p-p input range reduce need
for external amplifiers.
input requires a signal of 2 V p-p amplitude. The two-step
4. Easy to use; no cumbersome external voltage references
architecture used in the AD9040A is optimized to provide the
required, allowing denser packing of ADCs for multichannel
best dynamic performance available while maintaining low
applications.
power requirements of only 940 mW typically; maximum dissi-
5. Available in 28-lead PDIP and SOIC packages.
pation is 1.1 W at 40 MSPS.
6. Evaluation board includes AD9040AJR, reconstruction DAC,
and latches. Space is available near the analog input and digital
The signal-to-noise ratio (SNR), including harmonics, is 53 dB,
outputs of the converter for additional circuits. Order as part
or 8.5 ENOB, when sampling an analog input of 10.3 MHz at
number AD9040A/PCB (schematic shown in data sheet).
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 in either a 28-lead
PDIP or a 28-lead SOIC package. 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. D
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. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective companies.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703 © 2003 Analog Devices, Inc. All rights reserved.


Analog Devices Semiconductor Electronic Components Datasheet

AD9040A Datasheet

10-Bit 40 MSPS A/D Converter

No Preview Available !

AD9040A–SPECIFICATIONS (+VS = VD = +5 V; –VS = –5 V; internal reference: Encode = 40.5 MSPS, unless
otherwise noted.)
Parameter (Conditions)
Temp
Test
Level
AD9040AJN/AD9040AJR
Min Typ
Max
Unit
RESOLUTION
10 Bits
DC ACCURACY
Differential Nonlinearity
25°C
I
1.0 2.0 LSB
Full VI
2.5 LSB
Integral Nonlinearity
25°C
I
1.0 2.25 LSB
Full VI
2.5 LSB
No Missing Codes
Full VI
Guaranteed
Gain Error
25°C
I
± 0.5 ± 1.5 % FS
Full VI
Gain Temperature Coefficient1 Full V
±2
± 70
% FS
ppm/°C
ANALOG INPUT
Input Voltage Range
Input Offset Voltage
Input Bias Current
OInput Resistance
BInput Capacitance
Analog Bandwidth
SBAND GAP REFERENCE
OOutput Voltage
Temperature Coefficient1
LSWITCHING PERFORMANCE
EMaximum Conversion Rate
Minimum Conversion Rate
TEAperture Delay (tA)
25°C
25°C
Full
25°C
Full
25°C
25°C
25°C
Full
Full
25°C
25°C
25°C
V
I
VI
I
VI
I
V
V
VI
V
I
IV
V
2
±2
7
200 350
5
48
2.4
± 40
40
2
1.9
V p-p
± 25 mV
± 30 mV
15 µA
25 µA
k
pF
MHz
2.6 V
ppm/°C
MSPS
10 MSPS
ns
Aperture Uncertainty (Jitter)
25°C
V
7
ps, rms
Output Propagation Delay (tPD)2
25°C
I
7.5 10
12 ns
Full IV
6
14 ns
DYNAMIC PERFORMANCE3
Transient Response
Overvoltage Recovery Time
Signal-to-Noise Ratio4
fIN = 2.3 MHz
fIN = 10.3 MHz
Signal-to-Noise Ratio4
(Without Harmonics)
fIN = 2.3 MHz
fIN = 10.3 MHz
Signal-to-Noise Ratio4, 5
fIN = 2.3 MHz
fIN = 10.3 MHz
Signal-to-Noise Ratio4, 5
(Without Harmonics)
fIN = 2.3 MHz
fIN = 10.3 MHz
Second Harmonic Distortion
fIN = 2.3 MHz
fIN = 10.3 MHz
Third Harmonic Distortion
fIN = 2.3 MHz
fIN = 10.3 MHz
Two-Tone Intermodulation6
Distortion Rejections
Differential Phase
Differential Gain
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
V
V
I
I
I
I
I
I
I
I
I
I
I
I
V
III
III
25
40
48 54
47 53
49 55
48 54
56
55
57
56
56 67
56 65
57 73
57 70
62
0.15
0.25
0.5
1.0
ns
ns
dB
dB
dB
dB
dB
dB
dB
dB
dBc
dBc
dBc
dBc
dBc
Degrees
%
–2– REV. D


Part Number AD9040A
Description 10-Bit 40 MSPS A/D Converter
Maker Analog Devices
Total Page 16 Pages
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