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VFC121BP-BI PDF预览

VFC121BP-BI

更新时间: 2024-01-31 12:19:23
品牌 Logo 应用领域
BB 转换器
页数 文件大小 规格书
8页 102K
描述
Voltage to Frequency Converter, Bipolar, PDIP14,

VFC121BP-BI 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
Reach Compliance Code:unknown风险等级:5.86
转换器类型:VOLTAGE TO FREQUENCY CONVERTERJESD-30 代码:R-PDIP-T14
JESD-609代码:e0端子数量:14
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:DIP
封装等效代码:DIP14,.3封装形状:RECTANGULAR
封装形式:IN-LINE电源:5 V
子类别:Analog Special Function Converters最大压摆率:10 mA
标称供电电压:5 V表面贴装:NO
技术:BIPOLAR温度等级:OTHER
端子面层:Tin/Lead (Sn/Pb)端子形式:THROUGH-HOLE
端子节距:2.54 mm端子位置:DUAL
Base Number Matches:1

VFC121BP-BI 数据手册

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®
VFC121  
Precision Single Power Supply  
VOLTAGE-TO-FREQUENCY CONVERTER  
FEATURES  
APPLICATIONS  
SINGLE SUPPLY OPERATION:  
INTEGRATING A/D CONVERSION  
ANALOG SIGNAL TRANSMISSION  
PHASE-LOCKED LOOP VCO  
+4.5V to +36V  
fO = 1.5MHz max  
LOW NONLINEARITY: 0.03% max at  
GALVANICALLY ISOLATED SYSTEMS  
100kHz, 0.1% max at 1MHz  
HIGH INPUT IMPEDANCE  
VOLTAGE REFERENCE OUTPUT  
THERMOMETER OUTPUT: 1mV/°K  
DESCRIPTION  
36V may be used. A 2.6V reference voltage output  
may be used to excite sensors or bias external cir-  
cuitry. A thermometer output voltage proportional to  
absolute temperature (°K) may be used as a tempera-  
ture sensor or for temperature compensation of appli-  
cations circuits.  
The VFC121 is a monolithic voltage-to-frequency  
converter consisting of an integrating amplifier, volt-  
age reference, and one-shot charge pump circuitry.  
High-frequency complementary NPN/PNP circuitry is  
used to implement the charge-balance technique,  
achieving speed and accuracy far superior to previous  
single power supply VFCs.  
Frequency output is an open-collector transistor. A  
disable pin forces the output to the high impedance  
state, allowing multiple VFCs to share a common  
transmission path.  
The high-impedance input accepts signals from ground  
potential to V – 2.5V. Power supplies from 4.5V to  
S
+5V  
+VS  
Ground  
(Optional)  
VPULL UP  
CINT = 2700pF  
10  
9
13  
2
RPULL UP  
Integrator  
12  
11  
Comparator  
14  
8
VIN = 0 to +2V  
RBIAS = 8k  
One  
Shot  
fOUT  
0 to 100kHz  
=
VREF  
(Optional)  
IREF  
RTRIM  
VREF  
RIN = 8kΩ  
RIN  
4
6
3
5
COS = 1200pF  
2.6V  
VT  
International Airport Industrial Park  
Mailing Address: PO Box 11400  
Cable: BBRCORP  
Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd. Tucson, AZ 85706  
Tel: (520)746-1111 Twx: 910-952-1111  
Telex: 066-6491  
FAX: (520)889-1510  
Immediate Product Info: (800)548-6132  
© 1989 Burr-Brown Corporation  
PDS-971A  
Printed in U.S.A. March, 1992  

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