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參數(shù)資料
| 型號： | AD7248A |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | DIODE SW DUAL BAV99 70V@ 215MA SOT-23 |
| 中文描述： | LC2MOS 12位DACPORTs |
| 文件頁數(shù)： | 1/16頁 |
| 文件大小： | 306K |
| 代理商： | AD7248A |
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
LC
2
MOS
12-Bit DACPORTs
AD7245A/AD7248A
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
FEATURES
12-Bit CMOS DAC with Output Amplifier and
Reference
Improved AD7245/AD7248:
12 V to 15 V Operation
6
1/2 LSB Linearity Grade
Faster Interface–30 ns typ Data Setup Time
Extended Plastic Temperature Range (–40
8
C to +85
8
C)
Single or Dual Supply Operation
Low Power–65 mW typ in Single Supply
Parallel Loading Structure: AD7245A
(8+4) Loading Structure: AD7248A
GE NE RAL DE SCRIPT ION
T he AD7245A/AD7248A is an enhanced version of the industry
standard AD7245/AD7248. Improvements include operation
from 12 V to 15 V supplies, a
±
1/2 LSB linearity grade, faster
interface times and better full scale and reference variations with
V
DD
. Additional features include extended temperature range
operation for commercial and industrial grades.
T he AD7245A/AD7248A is a complete, 12-bit, voltage output,
digital-to-analog converter with output amplifier and Zener volt-
age reference on a monolithic CMOS chip. No external user
trims are required to achieve full specified performance.
Both parts are microprocessor compatible, with high speed data
latches and double-buffered interface logic. T he AD7245A ac-
cepts 12-bit parallel data which is loaded into the input latch on
the rising edge of
CS
or
WR
. T he AD7248A has an 8-bit wide
data bus with data loaded to the input latch in two write opera-
tions. For both parts, an asynchronous
LDAC
signal transfers
data from the input latch to the DAC latch and updates the ana-
log output. T he AD7245A also has a
CLR
signal on the DAC latch
which allows features such as power-on reset to be implemented.
T he on-chip 5 V buried Zener diode provides a low noise, tem-
perature compensated reference for the DAC. For single supply
operation, two output ranges of 0 V to +5 V and 0 V to +10 V
are available, while these two ranges plus an additional
±
5 V
range are available with dual supplies. T he output amplifiers are
capable of developing +10 V across a 2 k
load to GND.
T he AD7245A/AD7248A is fabricated in linear compatible
CMOS (LC
2
MOS), an advanced, mixed technology process that
combines precision bipolar circuits with low power CMOS logic.
T he AD7245A is available in a small, 0.3" wide, 24-pin DIP
and
DAC PORT is a registered trademark of Analog Devices, Inc.
AD7245A FUNCT IONAL BLOCK DIAGRAM
AD7248A FUNCT IONAL BLOCK DIAGRAM
SOIC and in 28-terminal surface mount packages. T he
AD7248A is packaged in a small, 0.3" wide, 20-pin DIP and
SOIC and in 20-terminal surface mount packages.
PRODUCT HIGHLIGHT S
1. T he AD7245A/AD7248A is a 12-bit DACPORT
on a single
chip. T his single chip design and small package size offer
considerable space saving and increased reliability over
multichip designs.
2. T he improved interface times on the part allows easy, direct
interfacing to most modern microprocessors.
3. T he AD7245A/AD7248A features a wide power supply range
allowing operation from 12 V supplies.
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| AD7245A | LC2MOS 12-Bit DACPORTs |
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| AD7245AAP | LC2MOS 12-Bit DACPORTs |
| AD7245AAQ | LC2MOS 12-Bit DACPORTs |
| AD7245AAR | LC2MOS 12-Bit DACPORTs |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AD7248AAN | 功能描述:IC DAC 12BIT LC2MOS 20-DIP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)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(shù):16 數(shù)據(jù)接口:并聯(lián) 轉換器數(shù)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(shù)目和類型:1 電壓，單極；1 電壓，雙極 采樣率（每秒）:143k |
| AD7248AANZ | 功能描述:IC DAC 12BIT LC2MOS 20-DIP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)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(shù):16 數(shù)據(jù)接口:并聯(lián) 轉換器數(shù)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(shù)目和類型:1 電壓，單極；1 電壓，雙極 采樣率（每秒）:143k |
| AD7248AANZ | 制造商:Analog Devices 功能描述:IC 12-BIT DAC |
| AD7248AAP | 功能描述:IC DAC 12BIT W/REF 28-PLCC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)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(shù):16 數(shù)據(jù)接口:并聯(lián) 轉換器數(shù)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(shù)目和類型:1 電壓，單極；1 電壓，雙極 采樣率（每秒）:143k |
| AD7248AAP-REEL | 功能描述:IC DAC 12BIT W/REF 28-PLCC T/R RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉換器 系列:DACPORT® 標準包裝:2,400 系列:- 設置時間:- 位數(shù):18 數(shù)據(jù)接口:串行 轉換器數(shù)目:3 電壓電源:模擬和數(shù)字 功率耗散（最大）:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:36-TFBGA 供應商設備封裝:36-TFBGA 包裝:帶卷 (TR) 輸出數(shù)目和類型:* 采樣率（每秒）:* |
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