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參數(shù)資料
| 型號： | AD9202 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Complete 10-Bit, 32 MSPS, 90 mW CMOS A/D Converter(32MSPS,10位A/D轉(zhuǎn)換器) |
| 中文描述： | 完整的10位，32 MSPS的90毫瓦的CMOS A / D轉(zhuǎn)換（32MSPS，10位的A / D轉(zhuǎn)換器） |
| 文件頁數(shù)： | 1/24頁 |
| 文件大?。?/td> | 369K |
| 代理商： | AD9202 |
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.
a
AD9202
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 1998
Complete 10-Bit, 32 MSPS, 90 mW
CMOS A/D Converter
FUNCTIONAL BLOCK DIAGRAM
A/D
A/D
AIN
REFTF
REFBF
REFSENSE
OTR
D9
(MSB)
D0
(LSB)
VREF
DRVDD
AVDD
CLK
DRVSS
AD9202
SHA
SHA
SHA
GAIN
SHA
GAIN
GAIN
D/A
A/D
D/A
A/D
D/A
CORRECTION LOGIC
OUTPUT BUFFERS
REFTS
REFBS
1V
AVSS
THREE-
STATE
MODE
STBY
CLAMP
CLAMP
IN
SHA
GAIN
A/D
D/A
FEATURES
CMOS 10-Bit, 32 MSPS Sampling A/D Converter
Power Dissipation: 90 mW (3 V Supply)
Operation Between 2.7 V and 5.5 V Supply
Differential Nonlinearity: 0.5 LSB
Power-Down (Sleep) Mode
Three-State Outputs
Out-of-Range Indicator
Built-In Clamp Function (DC Restore)
Adjustable On-Chip Voltage Reference
IF Undersampling to 135 MHz
Pin-Compatible with the AD9200
PRODUCT DESCRIPTION
The AD9202 is a monolithic, single supply, 10-bit, 32 MSPS
analog-to-digital converter with an on-chip sample-and-hold
amplifier and voltage reference. The AD9202 uses a multistage
differential pipeline architecture at 32 MSPS data rates and
guarantees no missing codes over the full operating tempera-
ture range.
The input of the AD9202 has been designed to ease the devel-
opment of both imaging and communications systems. The
user can select a variety of input ranges and offsets and can
drive the input either single-ended or differentially.
The sample-and-hold (SHA) amplifier is equally suited for
both multiplexed systems that switch full-scale voltage levels in
successive channels and sampling single-channel inputs at
frequencies up to and beyond the Nyquist rate. AC coupled
input signals can be shifted to a predetermined level, with an
onboard clamp circuit. The dynamic performance is excellent.
The AD9202 has an onboard programmable reference. An
external reference can also be chosen to suit the dc accuracy and
temperature drift requirements of the application.
A single clock input is used to control all internal conversion
cycles. The digital output data is presented in straight binary
output format. An out-of-range signal (OTR) indicates an over-
flow condition that can be used with the most significant bit to
determine low or high overflow.
The AD9202 can operate with supply range from 2.7 V to
5.5 V, ideally suiting it for low power operation in high speed
portable applications.
The AD9202 is specified over the commercial (0
°
C to +70
°
C)
temperature range.
PRODUCT HIGHLIGHTS
Low Power
The AD9202 consumes 90 mW on a 3 V supply (excluding the
reference power). In sleep mode, power is reduced to below
5 mW.
Very Small Package
The AD9202 is available in a 28-lead SSOP package.
300 MHz Onboard Sample-and-Hold
The versatile SHA input can be configured for either single-
ended or differential inputs.
Out-of-Range Indicator
The OTR output bit indicates when the input signal is beyond
the input range of the AD9202.
Built-In Clamp Function
Allows dc restoration of video signals.
Pin Compatible with AD9200
The AD9202 allows “drop-in” upgrade for AD9200 users.
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