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參數資料
| 型號： | AD7244JRZ-REEL |
| 廠商： | Analog Devices Inc |
| 文件頁數： | 1/12頁 |
| 文件大小： | 0K |
| 描述： | IC DAC 14BIT LC2MOS DUAL 28SOIC |
| 標準包裝： | 1,000 |
| 設置時間： | 4µs |
| 位數： | 14 |
| 數據接口： | 串行 |
| 轉換器數目： | 2 |
| 電壓電源： | 雙 ± |
| 功率耗散（最大）： | 195mW |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-SOIC（0.295"，7.50mm 寬） |
| 供應商設備封裝： | 28-SOIC W |
| 包裝： | 帶卷 (TR) |
| 輸出數目和類型： | * |
| 采樣率（每秒）： | 250k |
REV. A
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
LC2MOS Dual, Complete,
12-Bit/14-Bit Serial DACs
AD7242/AD7244
FUNCTIONAL BLOCK DIAGRAM
GENERAL DESCRIPTION
The AD7242/AD7244 is a fast, complete, dual 12-bit/14-bit
voltage output D/A converter. It consists of a 12-bit/14-bit
DAC, 3 V buried Zener reference, DAC output amplifiers and
high speed serial interface logic.
Interfacing to both DACs is serial, minimizing pin count and
allowing a small package size. Standard control signals allow
interfacing to most DSP processors and microcontrollers.
Asynchronous control of DAC updating for both DACs is made
possible with a separate LDAC input for each DAC.
The AD7242/AD7244 operates from
±5 V power supplies,
providing an analog output range of
±3 V. A REF OUT/REF
IN function allows the DACs to be driven from the on-chip 3 V
reference or from an external reference source.
The AD7242/AD7244 is fabricated in Linear Compatible
CMOS (LC
2MOS), an advanced mixed technology process that
combines precision bipolar circuits with low power CMOS
logic. Both parts are available in a 24-pin, 0.3-inch wide, plastic
or hermetic dual-in-line package (DIP) and in a 28-pin, plastic
small outline (SOIC) package. The AD7242 and AD7244 are
available in the same pinout to allow easy upgrade from 12-bit
to 14-bit performance.
FEATURES
Two 12-Bit/14-Bit DACs with Output Amplifiers
AD7242: 12-Bit Resolution
AD7244: 14-Bit Resolution
On-Chip Voltage Reference
Fast Settling Time
AD7242: 3
s to
1/2 LSB
AD7244: 4
s to
1/2 LSB
High Speed Serial Interface
Operates from
5 V Supplies
Specified Over –40 C to +85 C in Plastic Packages
Low Power – 130 mW typ
PRODUCT HIGHLIGHTS
1. Complete, Dual 12-Bit/14-Bit DACs
The AD7242/AD7244 provides the complete function for
generating voltages to 12-bit/14-bit resolution. The part
features an on-chip reference, output buffer amplifiers and
two 12-bit/14-bit D/A converters.
2. High Speed Serial Interface
The AD7242/AD7244 provides a high speed, easy-to-use,
serial interface allowing direct interfacing to DSP processors
and microcontrollers. A separate serial port is provided for
each DAC.
3. Small Package Size
The AD7242/AD7244 is available in a 24-pin DIP and a 28-
pin SOIC package offering considerable space saving over
comparable solutions.
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., 1996
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| AD7245AAN | 功能描述:IC DAC 12BIT LC2MOS 24-DIP RoHS:否 類別:集成電路 (IC) >> 數據采集 - 數模轉換器 系列:DACPORT® 產品培訓模塊:Data Converter Fundamentals DAC Architectures 標準包裝:750 系列:- 設置時間:7µs 位數:16 數據接口:并聯 轉換器數目:1 電壓電源:雙 ± 功率耗散（最大）:100mW 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-LCC（J 形引線） 供應商設備封裝:28-PLCC（11.51x11.51） 包裝:帶卷 (TR) 輸出數目和類型:1 電壓，單極；1 電壓，雙極 采樣率（每秒）:143k |
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