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AD9057BRS-60 参数 Datasheet PDF下载

AD9057BRS-60图片预览
型号: AD9057BRS-60
PDF下载: 下载PDF文件 查看货源
内容描述: 8位40 MSPS / 60 MSPS / 80 MSPS A / D转换器 [8-Bit 40 MSPS/60 MSPS/80 MSPS A/D Converter]
分类和应用: 转换器模数转换器光电二极管信息通信管理
文件页数/大小: 12 页 / 186 K
品牌: AD [ ANALOG DEVICES ]
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a
8-Bit
40 MSPS/60 MSPS/80 MSPS A/D Converter
AD9057
FUNCTIONAL BLOCK DIAGRAM
V
D
PWRDN
V
DD
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 & YC/Composite Video Processing
Digital Data Storage Read Channels
Medical Imaging
Digital Instrumentation
AD9057
AIN
BIAS OUT
VREF IN
VREF OUT
+2.5V
T/H
1kΩ
ADC
8
D7–D0
GND
ENCODE
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 compo-
nent 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 con-
sumption 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.
PIN CONFIGURATION
PWRDN 1
VREF OUT 2
VREF IN 3
GND 4
V
D
5
20 D0 (LSB)
19 D1
18 D2
AD9057
17 D3
TOP VIEW 16 GND
(Not to Scale)
BIAS OUT 6
15 V
DD
AIN 7
V
D
8
GND 9
ENCODE 10
14 D4
13 D5
12 D6
11 D7 (MSB)
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
World Wide Web Site: http://www.analog.com
Fax: 617/326-8703
© Analog Devices, Inc., 1997