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LM231 PDF预览

LM231

更新时间: 2024-02-06 04:15:06
品牌 Logo 应用领域
德州仪器 - TI 转换器
页数 文件大小 规格书
20页 778K
描述
LM231A/LM231/LM331A/LM331 Precision Voltage-to-Frequency Converters

LM231 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
包装说明:SOP, SOP14,.4Reach Compliance Code:unknown
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.82转换器类型:VOLTAGE TO FREQUENCY CONVERTER
JESD-30 代码:R-PDSO-G14JESD-609代码:e0
最大线性误差 (EL):0.02%功能数量:1
端子数量:14最大工作频率:0.1 MHz
最高工作温度:85 °C最低工作温度:-25 °C
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP14,.4封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):NOT SPECIFIED
电源:5 V认证状态:Not Qualified
子类别:Analog Special Function Converters最大压摆率:6 mA
最大供电电压:40 V最小供电电压:4 V
标称供电电压:5 V表面贴装:YES
技术:BIPOLAR温度等级:OTHER
端子面层:Tin/Lead (Sn/Pb)端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIEDBase Number Matches:1

LM231 数据手册

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LM231, LM331  
www.ti.com  
SNOSBI2B JUNE 1999REVISED MARCH 2013  
LM231A/LM231/LM331A/LM331 Precision Voltage-to-Frequency Converters  
Check for Samples: LM231, LM331  
1
FEATURES  
DESCRIPTION  
The LM231/LM331 family of voltage-to-frequency  
converters are ideally suited for use in simple low-  
cost circuits for analog-to-digital conversion, precision  
23  
Ensured Linearity 0.01% max  
Improved Performance in Existing Voltage-to-  
Frequency Conversion Applications  
frequency-to-voltage  
integration, linear  
conversion,  
frequency modulation  
long-term  
or  
Split or Single Supply Operation  
demodulation, and many other functions. The output  
when used as a voltage-to-frequency converter is a  
pulse train at a frequency precisely proportional to the  
applied input voltage. Thus, it provides all the  
inherent advantages of the voltage-to-frequency  
conversion techniques, and is easy to apply in all  
standard voltage-to-frequency converter applications.  
Further, the LM231A/LM331A attain a new high level  
of accuracy versus temperature which could only be  
Operates on Single 5V Supply  
Pulse Output Compatible with All Logic Forms  
Excellent Temperature Stability: ±50 ppm/°C  
max  
Low Power Consumption: 15 mW Typical at 5V  
Wide Dynamic Range, 100 dB min at 10 kHz  
Full Scale Frequency  
Wide Range of Full Scale Frequency: 1 Hz to  
100 kHz  
attained  
with  
expensive  
voltage-to-frequency  
modules. Additionally the LM231/331 are ideally  
suited for use in digital systems at low power supply  
voltages and can provide low-cost analog-to-digital  
conversion in microprocessor-controlled systems.  
And, the frequency from a battery powered voltage-  
to-frequency converter can be easily channeled  
through a simple photo isolator to provide isolation  
against high common mode levels.  
Low Cost  
The LM231/LM331 utilize  
a
new temperature-  
compensated band-gap reference circuit, to provide  
excellent accuracy over the full operating temperature  
range, at power supplies as low as 4.0V. The  
precision timer circuit has low bias currents without  
degrading the quick response necessary for 100 kHz  
voltage-to-frequency conversion. And the output are  
capable of driving 3 TTL loads, or a high voltage  
output up to 40V, yet is short-circuit-proof against  
VCC  
.
CONNECTION DIAGRAM  
Figure 1. Plastic Dual-In-Line Package (PDIP)  
See Package Number P (R-PDIP-T8)  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
Teflon is a registered trademark of E.  
2
3
All other trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 1999–2013, Texas Instruments Incorporated  

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