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AD9057 数据表(PDF) 1 Page - Analog Devices

部件名 AD9057
功能描述  8-Bit 40 MSPS/50 MSPS/80 MSPS Converter
Download  12 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

AD9057 数据表(HTML) 1 Page - Analog Devices

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REV. C
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.
a
AD9057
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
© Analog Devices, Inc., 2001
8-Bit
40 MSPS/50 MSPS/80 MSPS Converter
FUNCTIONAL BLOCK DIAGRAM
ADC
T/H
8
D7–D0
ENCODE
AIN
VREF OUT
BIAS OUT
VD
PWRDN
VDD
AD9057
VREF IN
+2.5V
1k
GND
PRODUCT DESCRIPTION
The AD9057 is an 8-bit monolithic analog-to-digital converter
optimized for low cost, low power, small size, and ease of use.
With a 40 MSPS, 60 MSPS, or 80 MSPS encode rates capabil-
ity and full-power analog bandwidth of 120 MHz, the component
is ideal for applications requiring excellent dynamic performance.
To minimize system cost and power dissipation, the AD9057
includes an internal 2.5 V reference and a track-and-hold
circuit. The user must provide only a 5 V power supply and an
encode clock. No external reference or driver components are
required for many applications.
The AD9057’s encode input is TTL/CMOS compatible and the
8-bit digital outputs can be operated from 5 V or 3 V supplies. A
power-down function may be exercised to bring total consump-
tion to < 10 mW. In power-down mode the digital outputs are
driven to a high impedance state.
Fabricated on an advanced BiCMOS process, the AD9057 is
available in a space saving 20-lead surface mount plastic pack-
age (20 SSOP) and is specified over the industrial (–40
°C to
+85
°C) temperature range.
Customers desiring multichannel digitization may consider the
AD9059, a dual 8-bit, 60 MSPS monolithic based on the
AD9057 ADC core. The AD9059 is available in a 28-lead sur-
face mount plastic package (28 SSOP) and is specified over the
industrial temperature range.
FEATURES
8-Bit, Low Power ADC: 200 mW Typical
120 MHz Analog Bandwidth
On-Chip 2.5 V Reference and T/H
1 V p-p Analog Input Range
Single 5 V Supply Operation
5 V or 3 V Logic Interface
Power-Down Mode: < 10 mW
Three Performance Grades (40 MSPS, 60 MSPS, 80 MSPS)
APPLICATIONS
Digital Communications (QAM Demodulators)
RGB and YC/Composite Video Processing
Digital Data Storage Read Channels
Medical Imaging
Digital Instrumentation
PIN CONFIGURATION
14
13
12
11
17
16
15
20
19
18
10
9
8
1
2
3
4
7
6
5
TOP VIEW
(Not to Scale)
PWRDN
D3
D2
D1
D0 (LSB)
VREF OUT
VREF IN
GND
AD9057
D4
VDD
GND
VD
BIAS OUT
AIN
VD
GND
ENCODE
D7 (MSB)
D6
D5


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