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Analog Devices Semiconductor Electronic Components Datasheet

AD9060 Datasheet

10-Bit 75 MSPS A/D Converter

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a
10-Bit 75 MSPS
A/D Converter
AD9060
FEATURES
Monolithic 10-Bit/75 MSPS Converter
ECL Outputs
Bipolar (؎1.75 V) Analog Input
57 dB SNR @ 2.3 MHz Input
Low (45 pF) Input Capacitance
APPLICATIONS
Digital Oscilloscopes
Medical Imaging
Professional Video
Radar Warning/Guidance Systems
Infrared Systems
GENERAL DESCRIPTION
The AD9060 A/D converter is a 10-bit monolithic converter
capable of word rates of 75 MSPS and above. Innovative
architecture using 512 input comparators instead of the tradi-
tional 1024 required by other flash converters reduces input
capacitance and improves linearity.
Inputs and outputs are ECL compatible, which makes the
AD9060 the recommended choice for systems with conversion
rates >30 MSPS to minimize system noise. An overflow bit is
provided to indicate analog input signals greater than +VSENSE.
Voltage sense lines are provided to ensure accurate driving of
the ± VREF voltages applied to the units. Quarter point taps on
the resistor ladder help optimize the integral linearity of the unit.
The AD9060 is available in a 68-lead ceramic leaded (gull wing)
chip carrier package specifically designed for low thermal imped-
ances. Two performance grades for temperatures of both 0°C to
+70°C and –55°C to +125°C ranges are offered to allow the user
to select the linearity best suited for each application. Dynamic
performance is fully characterized and production tested at 25°C.
AIN
+VREF
+VSENSE
FUNCTIONAL BLOCK DIAGRAM
OVERFLOW
MSB LSBs
INVERT INVERT
61 59
R/2
512
AD9060
3/4REF
R
R/2
R/2
R
R
1/2REF
R/2
R/2
R
R
1/4REF 63
R/2
R/2
R
385
384
C 51 OVERFLOW
O
M 50 D9 (MSB)
257
PD
AE
RC
A
T
OVERFLOW
O
D
OVERFLOW
OE
L
A
49 D8
48 D7
47 D6
R T 46 D5
256 L C
L
A
T
1024
O
G
I
10
H 23 D4
22 D3
CC
H
21 D2
129 E
S
20 D1
19 D0 (LSB)
128
R
2
R
–VSENSE 57
–VREF 56
R/2
ENCODE
ENCODE
1
–VS +VS GND
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. 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

AD9060 Datasheet

10-Bit 75 MSPS A/D Converter

No Preview Available !

AD9060–SPECIFICATIONS
ELECTRICAL CHARACTERISTICS (+VS = +5 V; –VS = –5.2 V; ؎VSENSE = ؎1.75 V; ENCODE = 60 MSPS, unless otherwise noted.)1
Parameter
Test
Temp Level
AD9060JZ
Min Typ
Max
AD9060KZ
Min Typ
Max
Unit
RESOLUTION
10 10
Bits
DC ACCURACY1
Differential Nonlinearity
Integral Nonlinearity
No Missing Codes
25°C
Full
25°C
Full
Full
I
VI
I
VI
VI
1.0 1.25
1.5
1.25 2.0
2.5
0.75
1.0
Guaranteed
1.0
1.25
1.5
2.0
LSB
LSB
LSB
LSB
ANALOG INPUT
Input Bias Current2
Input Resistance
Input Capacitance2
Analog Bandwidth
25°C
Full
25°C
25°C
25°C
I
VI
I
V
V
0.4 1.0
0.4
2.0
2.0 7.0
2.0 7.0
45 45
175 175
1.0 mA
2.0 mA
k
pF
MHz
REFERENCE INPUT
Reference Ladder Resistance
Ladder Tempco
Reference Ladder Offset
Top of Ladder
Bottom of Ladder
Offset Drift Coefficient
25°C
Full
Full
25°C
Full
25°C
Full
Full
I
VI
V
I
VI
I
VI
V
22 37
56 22 37
14 66 14
0.1 0.1
45 90
90
45 90
90
50
45
45
50
56
66
/°C
90 mV
90 mV
90 mV
90 mV
µV/°C
SWITCHING PERFORMANCE
Conversion Rate
Aperture Delay (tA)
Aperture Uncertainty (Jitter)
Output Delay (tOD)3
Output Rise Time
Output Fall Time
Output Time Slew3
25°C
25°C
25°C
25°C
25°C
25°C
25°C
I
V
V
I
I
I
I
75
1
5
24
1
1
1.5
9
3
3
3
75
1
5
24
1
1
1.5
MSPS
ns
ps, rms
9 ns
3 ns
3 ns
3 ns
DYNAMIC PERFORMANCE
Transient Response
25°C
Overvoltage Recovery Time
25°C
Effective Number of Bits (ENOB)
fIN = 2.3 MHz
fIN = 10.3 MHz
fIN = 29.3 MHz
Signal-to-Noise Ratio4
25°C
25°C
25°C
fIN = 2.3 MHz
fIN = 10.3 MHz
fIN = 29.3 MHz
25°C
25°C
25°C
V
V
I
IV
IV
I
I
I
10
10
8.7 9.1
8.0 8.6
7.0 7.4
54 56
51 54
44 47
10
10
8.7 9.1
8.0 8.6
7.0 7.4
54 56
51 54
44 47
ns
ns
Bits
Bits
Bits
dB
dB
dB
–2– REV. B


Part Number AD9060
Description 10-Bit 75 MSPS A/D Converter
Maker Analog Devices
Total Page 12 Pages
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