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PDF AD9058 Data sheet ( Hoja de datos )
| Número de pieza | AD9058 | |
| Descripción | Dual 8-Bit 50 MSPS A/D Converter | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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FEATURES
2 Matched ADCs on Single Chip
50 MSPS Conversion Speed
On-Board Voltage Reference
Low Power (<1 W)
Low Input Capacitance (10 pF)
65 V Power Supplies
Flexible Input Range
APPLICATIONS
Quadrature Demodulation for Communications
Digital Oscilloscopes
Electronic Warfare
Radar
GENERAL DESCRIPTION
The AD9058 combines two independent, high performance,
8-bit analog-to-digital converters (ADCs) on a single monolithic
IC. Combined with an optional on-board voltage reference,
the AD9058 provides a cost-effective alternative for systems
requiring two or more ADCs.
Dynamic performance (SNR, ENOB) is optimized to provide
up to 50 MSPS conversion rates. The unique architecture
results in low input capacitance while maintaining high per-
formance and low power (<0.5 W/channel). Digital inputs
and outputs are TTL compatible.
Performance has been optimized for an analog input of 2 V p-p
(± 1 V; 0 V to 2 V). Using the on-board 2 V voltage reference,
the AD9058 can be set up for unipolar positive operation
(0 V to 2 V). This internal voltage reference can drive
both ADCs.
Commercial (0°C to 70°C) and military (–55°C to +125°C)
temperature range parts are available. Parts are supplied in
hermetic 48-lead DIP and 44-lead “J” lead packages.
Dual 8-Bit 50 MSPS
A/D Converter
AD9058
FUNCTIONAL BLOCK DIAGRAM
ENCODE
AIN
AD9058
+VREF
8-BIT
ANALOG-
TO-DIGITAL
CONVERTER
–VREF
8
A
2VREF
ENCODE
AIN
+VREF
8-BIT
ANALOG-
TO-DIGITAL
CONVERTER
–VREF
8
B
QUADRATURE RECEIVER
G8
Q
RF 90؇ AD9058
8
GI
LO
REV. E
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
Fax: 781/461-3113
www.analog.com
© 2012 Analog Devices, Inc. All rights reserved.
1 page  
AD9058
ABSOLUTE MAXIMUM RATINGS1
Analog Input . . . . . . . . . . . . . . . . . . . . . . . . –1.5 V to +2.5 V
+VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 V
–VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.8 V to –6 V2
Digital Inputs . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to +VS
Digital Output Current . . . . . . . . . . . . . . . . . . . . . . . . 20 mA
Voltage Reference Current . . . . . . . . . . . . . . . . . . . . . . 53 mA
+VREF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5 V
–VREF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –1.5 V
Operating Temperature Range
AD9058AJD/AJJ/AKD/AKJ . . . . . . . . . . . . . . . 0°C to 70°C
Maximum Junction Temperature3
AD9058AJD/AJJ/AKD/AKJ . . . . . . . . . . . . . . . . . . . 150°C
Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . . 300°C
NOTES
1Absolute maximum ratings are limiting values to be applied individually, and
beyond which the serviceability of the circuit may be impaired. Functional
operability is not necessarily implied. Exposure to absolute maximum rating
conditions for an extended period of time may affect device reliability.
2For applications in which +VS may be applied before –VS, or +VS current is
not limited to 500 mA, a reverse-biased clamping diode should be inserted
between ground and –VS to prevent destructive latch up. See section entitled
“Using the AD9058.”
3Typical thermal impedances: 44-lead hermetic J-leaded ceramic package: θJA = 86.4°C/W;
θJC = 24.9°C/W; 48-lead hermetic: DIP θJA = 40°C/W; θJC = 12°C/W.
EXPLANATION OF TEST LEVELS
Test Level
I. 100% production tested.
II. 100% production tested at 25°C, and sample tested at
specified temperatures.
III. Sample tested only.
IV. Parameter is guaranteed by design and characterization
testing.
V. Parameter is a typical value only.
VI. All devices are 100% production tested at 25°C. 100%
production tested at temperature extremes for extended
temperature devices; sample tested at temperature
extremes for commercial/industrial devices.
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although
the AD9058 features proprietary ESD protection circuitry, permanent damage may occur on
devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are
recommended to avoid performance degradation or loss of functionality.
WARNING!
ESD SENSITIVE DEVICE
+VS
DIGITAL BITS
Equivalent Digital Outputs
ENCODE
5V
13k⍀
Equivalent Encode Circuit
–4–
+VS
0.1F
D0–D7*
–VREF
+VINT
AIN**
ENCODE**
+VREF
COMP
+VS
AD9058
GROUND
–VS
+5V
–5.2V
* INDICATES EACH PIN IS CONNECTED THROUGH 2k⍀
** INDICATES EACH PIN IS CONNECTED THROUGH 100⍀
Burn-In Connections
REV. E
5 Page 
AD9058
OUTLINE DIMENSIONS
0.025 (0.64)
MIN
0.078 (1.98)
0.054 (1.37)
0.032 (0.81)
0.020 (0.51)
39
40
0.650 (16.51)
0.610 (15.49)
0.050
(1.27)
BSC
0.023 (0.58)
0.013 (0.33)
0.662 (16.82)
0.628 (15.95)SQ
PIN 1
TOP VIEW
29
28
0.040 (1.02)
REF
45°
3 PLACES
0.500 (12.70)
0.492 (12.50)
PIN 1 INDEX
0.065 (1.65)
BOTTOM VIEW
0.135 (3.43)
0.100 (2.54)
6
7
18
17
0.700 (17.78)
0.680 (17.27) SQ
CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETERS DIMENSIONS
(IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR
REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN.
44-Lead Ceramic Leaded Chip Carrier — J-Formed Leads [JLCC]
(J-44)
Dimensions shown in inches and (millimeters)
0.020 (0.51)
REF
45°
0.005 (0.13)
MIN
48
PIN 1
1
0.225 (5.72)
MAX
2.424 (63.57) MAX
0.200 (5.08)
0.125 (3.18)
0.023 (0.58)
0.014 (0.36)
0.110 (2.79)
0.090 (2.29)
0.098 (2.49)
MAX
25
0.620 (15.75)
0.590 (14.99)
24
0.070 (1.78)
0.030 (0.76)
0.060 (1.52)
0.015 (0.38)
0.150
(3.81)
MIN
SEATING
PLANE
0.630 (16.00)
0.520 (13.21)
0.015 (0.38)
0.008 (0.20)
ORDERING GUIDE
Model1
AD9058AJJ
AD9058AJJ-REEL
AD9058AKJ
AD9058ATJ/883B
AD9058AJD
AD9058AKD
AD9058ATD/883B
CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETER DIMENSIONS
(IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR
REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN.
48-Lead Side-Brazed Ceramic Dual In-Line Package [SBDIP]
(D-48)
Dimensions shown in inches and (millimeters)
Temperature Range
0°C to 70°C
0°C to 70°C
0°C to 70°C
–55°C to +125°C
0°C to 70°C
0°C to 70°C
–55°C to +125°C
Package Description
44-Lead JLCC
44-Lead JLCC
44-Lead JLCC
44-Lead JLCC
48-Lead SBDIP
48-Lead SBDIP
48-Lead SBDIP
1 For AD9058ATJ/883B and AD9058ATD/883B specifications, refer to Analog Devices Military Products Databook.
2 D = Hermetic ceramic DIP package; J = leaded ceramic package.
Package Option2
J-44
J-44
J-44
J-44
D-48
D-48
D-48
Rev. E | Page 10
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet AD9058.PDF ] | |
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