参数资料
| 型号： | AD7226KRZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC DAC 8BIT LC2MOS QUAD 20-SOIC |
| 产品培训模块： | Data Converter Fundamentals DAC Architectures |
| 标准包装： | 37 |
| 设置时间： | 4µs |
| 位数： | 8 |
| 数据接口： | 并联 |
| 转换器数目： | 4 |
| 电压电源： | 双 ± |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 20-SOIC W |
| 包装： | 管件 |
| 输出数目和类型： | 4 电压，单极；4 电压，双极 |
| 采样率（每秒）： | 143k |
| 产品目录页面： | 784 (CN2011-ZH PDF) |
REV.
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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. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices. Trademarks and
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Tel: 781/329-4700
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Analog Devices, Inc. All rights reserved.
AD7226
LC2MOS
Quad 8-Bit D/A Converter
FUNCTIONAL BLOCK DIAGRAM
CONTROL
LOGIC
DAC A
DAC B
DAC C
DAC D
LATCH A
LATCH B
LATCH C
LATCH D
A
B
C
D
MSB
DATA
(8-BIT)
LSB
WR
A1
A0
VSS
AGND
VREF
VDD
VOUTA
VOUTB
VOUTC
VOUTD
D
A
T
A
B
U
S
AD7226
GENERAL DESCRIPTION
The AD7226 contains four 8-bit voltage-output digital-to-
analog converters, with output buffer amplifiers and interface
logic on a single monolithic chip. No external trims are required
to achieve full specified performance for the part.
Separate on-chip latches are provided for each of the four D/A
converters. Data is transferred into one of these data latches
through a common 8-bit TTL/CMOS (5 V) compatible input
port. Control inputs A0 and A1 determine which DAC is
loaded when
WR goes low. The control logic is speed-compat-
ible with most 8-bit microprocessors.
Each D/A converter includes an output buffer amplifier capable
of driving up to 5 mA of output current. The amplifiers’ offsets
are laser-trimmed during manufacture, thereby eliminating any
requirement for offset nulling.
Specified performance is guaranteed for input reference voltages
from 2 V to 12.5 V with dual supplies. The part is also specified
for single supply operation at a reference of 10 V.
The AD7226 is fabricated in an all ion-implanted high speed
Linear Compatible CMOS (LC
2MOS) process, which has been
specifically developed to allow high speed digital logic circuits
and precision analog circuits to be integrated on the same chip.
PRODUCT HIGHLIGHTS
1. DAC-to-DAC Matching
Since all four DACs are fabricated on the same chip at the
same time, precise matching and tracking between the DACs
is inherent.
2. Single-Supply Operation
The voltage mode configuration of the DACs allows the
AD7226 to be operated from a single power supply rail.
3. Microprocessor Compatibility
The AD7226 has a common 8-bit data bus with individual
DAC latches, providing a versatile control architecture for
simple interface to microprocessors. All latch enable signals
are level triggered.
4. Small Size
Combining four DACs and four op amps plus interface logic
into a 20-pin package allows a dramatic reduction in board
space requirements and offers increased reliability in systems
using multiple converters. Its pinout is aimed at optimizing
board layout with all the analog inputs and outputs at one
end of the package and all the digital inputs at the other.
FEATURES
Four 8-Bit DACs with Output Amplifiers
Skinny 20-Lead DIP, SOIC, SSOP, and PLCC Packages
Microprocessor-Compatible
TTL/CMOS-Compatible
No User Trims
Extended Temperature Range Operation
Single Supply Operation Possible
APPLICATIONS
Process Control
Automatic Test Equipment
Automatic Calibration of Large System Parameters,
e.g., Gain/Offset
D
11
781-461-3113
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7226KRZ | 制造商:Analog Devices 功能描述:IC, DAC, 8BIT, 143KSPS, SOIC-20 |
| AD7226KRZ-REEL | 功能描述:IC DAC 8BIT QUAD W/AMP 20SOIC RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 产品培训模块:Data Converter Fundamentals DAC Architectures 标准包装:750 系列:- 设置时间:7µs 位数:16 数据接口:并联 转换器数目:1 电压电源:双 ± 功率耗散（最大）:100mW 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-LCC（J 形引线） 供应商设备封装:28-PLCC（11.51x11.51） 包装:带卷 (TR) 输出数目和类型:1 电压，单极；1 电压，双极 采样率（每秒）:143k |
| AD7226TD | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Digital-to-Analog Converter |
| AD7226TE | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Digital-to-Analog Converter |
| AD7226TE/883B | 制造商:Analog Devices 功能描述:DAC 4-CH R-2R 8BIT 20PIN LCC - Rail/Tube 制造商:Rochester Electronics LLC 功能描述:CMOS DAC IC - Bulk |
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