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參數(shù)資料
| 型號： | AD9203ARUZRL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 1/28頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 10BIT 40MSPS 3V 28-TSSOP |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 位數(shù)： | 10 |
| 采樣率（每秒）： | 40M |
| 數(shù)據(jù)接口： | 并聯(lián) |
| 轉(zhuǎn)換器數(shù)目： | 5 |
| 功率耗散（最大）： | 108mW |
| 電壓電源： | 模擬和數(shù)字 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-TSSOP（0.173"，4.40mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 28-TSSOP |
| 包裝： | 帶卷 (TR) |
| 輸入數(shù)目和類型： | 2 個單端，單極；1 個差分，單極 |
| 其它名稱： | AD9203ARUZRL7-ND AD9203ARUZRL7TR |
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10-Bit, 40 MSPS, 3 V, 74 mW
A/D Converter
AD9203
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.
Specifications subject to change without notice. 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 owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.326.8703
2004 Analog Devices, Inc. All rights reserved.
FEATURES
CMOS 10-Bit, 40 MSPS sampling A/D converter
Power dissipation: 74 mW (3 V supply, 40 MSPS)
17 mW (3 V supply, 5 MSPS)
Operation between 2.7 V and 3.6 V supply
Differential nonlinearity: 0.25 LSB
Power-down (standby) mode, 0.65 mW
ENOB: 9.55 @ fIN = 20 MHz
Out-of-range indicator
Adjustable on-chip voltage reference
IF undersampling up to fIN = 130 MHz
Input range: 1 V to 2 V p-p differential or single-ended
Adjustable power consumption
Internal clamp circuit
APPLICATIONS
CCD imaging
Video
Portable instrumentation
IF and baseband communications
Cable modems
Medical ultrasound
FUNCTIONAL BLOCK DIAGRAM
00573-001
SHA
GAIN
A/D
D/A
SHA
GAIN
A/D
D/A
A/D
CORRECTION LOGIC
AD9203
OUTPUT BUFFERS
10
+
–
0.5V
BANDGAP
REFERENCE
CLK
AVDD
DRVDD
STBY
3-STATE
OTR
D9 (MSB)
D0 (LSB)
DRVSS
DFS
PWRCON
AVSS
CLAMP
CLAMPIN
AINP
AINN
REFTF
REFBF
VREF
REFSENSE
Figure 1.
GENERAL DESCRIPTION
The AD9203 is a monolithic low power, single supply, 10-bit,
40 MSPS analog-to-digital converter, with an on-chip voltage
reference. The AD9203 uses a multistage differential pipeline
architecture and guarantees no missing codes over the full
operating temperature range. Its input range may be adjusted
between 1 V and 2 V p-p.
The AD9203 has an onboard programmable reference. An
external reference can also be chosen to suit the dc accuracy
and temperature drift requirements of an application.
An external resistor can be used to reduce power consumption
when operating at lower sampling rates. This yields power
savings for users who do not require the maximum sample rate.
This feature is especially useful at sample rates far below 40
MSPS. Excellent performance is still achieved at reduced power.
For example, 9.7 ENOB performance may be realized with only
17 mW of power, using a 5 MHz clock.
A single clock input is used to control all internal conversion
cycles. The digital output data is presented in straight binary or
twos complementary output format by using the DFS pin. An
out-of-range signal (OTR) indicates an overflow condition that
can be used with the most significant bit to determine over- or
underrange.
The AD9203 can operate with a supply range from 2.7 V to 3.6
V, an attractive option for low power operation in high-speed
portable applications.
The AD9203 is specified over industrial (40°C to +85°C)
temperature ranges and is available in a 28-lead TSSOP package.
PRODUCT HIGHLIGHTS
Low Power
—The AD9203 consumes 74 mW on a 3 V supply
operating at 40 MSPS. In standby mode, power is reduced to
0.65 mW.
High Performance
—Maintains better than 9.55 ENOB at 40
MSPS input signal from dc to Nyquist.
Very Small Package
—The AD9203 is available in a 28-lead
TSSOP.
Programmable Power
—The AD9203 power can be further
reduced by using an external resistor at lower sample rates.
Built-In Clamp Function
—Allows dc restoration of video
signals.
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