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| 型号： | AD7224LNZ |
| 厂商： | ANALOG DEVICES INC |
| 元件分类： | DAC |
| 英文描述： | LC2MOS 8-Bit DAC with Output Amplifiers |
| 中文描述： | PARALLEL, 8 BITS INPUT LOADING, 8-BIT DAC, PDIP18 |
| 封装： | PLASTIC, DIP-18 |
| 文件页数： | 1/8页 |
| 文件大小： | 228K |
| 代理商： | AD7224LNZ |
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
LC2MOS
8-Bit DAC with Output Amplifiers
AD7224
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
FUNCTIONAL BLOCK DIAGRAM
FEATURES
8-Bit CMOS DAC with Output Amplifiers
Operates with Single or Dual Supplies
Low Total Unadjusted Error:
Less Than 1 LSB Over Temperature
Extended Temperature Range Operation
P-Compatible with Double Buffered Inputs
Standard 18-Pin DIPs, and 20-Terminal Surface
Mount Package and SOIC Package
PRODUCT HIGHLIGHTS
1. DAC and Amplifier on CMOS Chip
The single-chip design of the 8-bit DAC and output amplifier
is inherently more reliable than multi-chip designs. CMOS
fabrication means low power consumption (35 mW typical
with single supply).
2. Low Total Unadjusted Error
The fabrication of the AD7224 on Analog Devices Linear
Compatible CMOS (LC
2MOS) process coupled with a novel
DAC switch-pair arrangement, enables an excellent total un-
adjusted error of less than 1 LSB over the full operating tem-
perature range.
3. Single or Dual Supply Operation
The voltage-mode configuration of the AD7224 allows opera-
tion from a single power supply rail. The part can also be op-
erated with dual supplies giving enhanced performance for
some parameters.
4. Versatile Interface Logic
The high speed logic allows direct interfacing to most micro-
processors. Additionally, the double buffered interface en-
ables simultaneous update of the AD7224 in multiple DAC
systems. The part also features a zero override function.
GENERAL DESCRIPTION
The AD7224 is a precision 8-bit voltage-output, digital-to-
analog converter, with output amplifier and double buffered
interface logic on a monolithic CMOS chip. No external trims
are required to achieve full specified performance for the part.
The double buffered interface logic consists of two 8-bit regis-
ters–an input register and a DAC register. Only the data held in
the DAC registers determines the analog output of the con-
verter. The double buffering allows simultaneous update in a
system containing multiple AD7224s. Both registers may be
made transparent under control of three external lines, CS, WR
and LDAC. With both registers transparent, the RESET line
functions like a zero override; a useful function for system cali-
bration cycles. All logic inputs are TTL and CMOS (5 V) level
compatible and the control logic is speed compatible with most
8-bit microprocessors.
Specified performance is guaranteed for input reference voltages
from +2 V to +12.5 V when using dual supplies. The part is also
specified for single supply operation using a reference of +10 V.
The output amplifier is capable of developing +10 V across a
2 k
load.
The AD7224 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.
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| AD7224LP | 功能描述:IC DAC 8BIT LC2MOS W/AMP 20PLCC RoHS:否 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 |
| AD7224LP-REEL | 功能描述:IC DAC 8BIT LC2MOS W/AMP 20PLCC RoHS:否 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 标准包装:47 系列:- 设置时间:2µs 位数:14 数据接口:并联 转换器数目:1 电压电源:单电源 功率耗散（最大）:55µW 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:28-SSOP（0.209"，5.30mm 宽） 供应商设备封装:28-SSOP 包装:管件 输出数目和类型:1 电流，单极；1 电流，双极 采样率（每秒）:* |
| AD7224LPZ | 功能描述:IC DAC 8BIT LC2MOS W/AMP 20PLCC 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 |
| AD7224LPZ-REEL | 功能描述:IC DAC 8BIT LC2MOS W/AMP 20PLCC RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 标准包装:47 系列:- 设置时间:2µs 位数:14 数据接口:并联 转换器数目:1 电压电源:单电源 功率耗散（最大）:55µW 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:28-SSOP（0.209"，5.30mm 宽） 供应商设备封装:28-SSOP 包装:管件 输出数目和类型:1 电流，单极；1 电流，双极 采样率（每秒）:* |
| AD7224LR-1 | 制造商:AD 制造商全称:Analog Devices 功能描述:LC2MOS 8-Bit DAC with Output Amplifiers |
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