参数资料
| 型号： | AD7538JR |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC DAC 14BIT W/BUFF 24-SOIC |
| 产品培训模块： | Data Converter Fundamentals DAC Architectures |
| 标准包装： | 31 |
| 设置时间： | 1.5µs |
| 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）： | 1W |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 24-SOIC W |
| 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）： | 667k |
LC2MOS
Microprocessor-Compatible 14-Bit DAC
AD7538
Rev. B
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
2009 Analog Devices, Inc. All rights reserved.
FEATURES
All grades 14-bit monotonic over the full temperature range
Low cost, 14-bit upgrade for 12-bit systems
14-bit parallel load with double buffered inputs
Small 24-pin, 0.30” DIP and SOIC
Low output leakage (<20 nA) over the full temperature range
APPLICATIONS
Microprocessor-based control systems
Digital audio
Precision servo control
Control and measurement in high temperature environments
FUNCTIONAL BLOCK DIAGRAM
2
23
1
3
4
20
21
22
24
5
619
14-BIT DAC
DAC REGISTER
INPUT
REGISTER
14
AD7538
DB13 TO DB0
DGND
VDD
VSS
WR
CS
LDAC
AGND
IOUT
VREF
RFB
0
1
13
9-
0
01
Figure 1.
GENERAL DESCRIPTION
The AD7538 is a 14-bit monolithic CMOS digital-to-analog
converter (DAC) that uses laser trimmed thin-film resistors to
achieve excellent linearity.
The DAC is loaded by a single 14-bit wide word using standard
chip select and memory write logic. Double buffering, which is
optional using LDAC, allows simultaneous updates in a system
containing multiple AD7538s.
A novel low leakage configuration enables the AD7538 to
exhibit excellent output leakage current characteristics over
the specified temperature range.
The AD7538 is manufactured using the linear-compatible
CMOS (LC2MOS) process. It is speed compatible with most
microprocessors and accepts TTL or CMOS logic level inputs.
PRODUCT HIGHLIGHTS
1.
Guaranteed Monotonicity.
The AD7538 is guaranteed monotonic to 14-bits over the
full temperature range for all grades.
2.
Low Cost.
The AD7538, with its 14-bit dynamic range, affords a low
cost solution for 12-bit system upgrades.
3.
Small Package Size.
The AD7538 is packaged in a small 24-pin, 0.3" DIP and a
24-pin SOIC.
4.
Low Output Leakage.
By tying VSS (Pin 24) to a negative voltage, it is possible to
achieve a low output leakage current at high temperatures.
5.
Wide Power Supply Tolerance.
The device operates on a +12 V to +15 V VDD, with a ±5%
tolerance on this nominal figure. All specifications are
guaranteed over this range.
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相关代理商/技术参数 |
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|---|---|
| AD7538JR-REEL | 制造商:Analog Devices 功能描述:DAC 1CH R-2R 14BIT 24SOIC W - Tape and Reel 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel |
| AD7538JRZ | 功能描述:IC DAC 14BIT W/BUFF 24-SOIC RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 标准包装:1 系列:- 设置时间:4.5µs 位数:12 数据接口:串行，SPI? 转换器数目:1 电压电源:单电源 功率耗散（最大）:- 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 供应商设备封装:8-SOICN 包装:剪切带 (CT) 输出数目和类型:1 电压，单极；1 电压，双极 采样率（每秒）:* 其它名称:MCP4921T-E/SNCTMCP4921T-E/SNRCTMCP4921T-E/SNRCT-ND |
| AD7538JRZ1 | 制造商:AD 制造商全称:Analog Devices 功能描述:LC2MOS Microprocessor-Compatible 14-Bit DAC |
| AD7538JRZ-REEL | 功能描述:IC DAC 14BIT LC2MOS 24SOIC 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 |
| AD7538JRZ-REEL1 | 制造商:AD 制造商全称:Analog Devices 功能描述:LC2MOS Microprocessor-Compatible 14-Bit DAC |
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