VFC121

更新时间： 2024-11-13 22:41:31

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
Precision Single Power Supply VOLTAGE-TO-FREQUENCY CONVERTER

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

VFC121 数据手册

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

● f_O= 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

+5V

+V_S

Ground

(Optional)

V_{PULL UP}

C_INT= 2700pF

R_{PULL UP}

Integrator

Comparator

V_IN= 0 to +2V

R_BIAS= 8kΩ

One

Shot

f_OUT

0 to 100kHz

V_REF

(Optional)

I_REF

R_TRIM

V_REF

R_IN= 8kΩ

R_IN

C_OS= 1200pF

2.6V

V_T

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

PDS-971A

Printed in U.S.A. March, 1992

12 3 4 5 6 7 8

中文翻译

下载PDF

与VFC121相关器件

型号	品牌	获取价格	描述	数据表
VFC121AP	BB	获取价格	Precision Single Power Supply VOLTAGE-TO-FREQUENCY CONVERTER
VFC121BP	BB	获取价格	Precision Single Power Supply VOLTAGE-TO-FREQUENCY CONVERTER
VFC121BP-BI	BB	获取价格	Voltage to Frequency Converter, Bipolar, PDIP14,
VFC1225SA	SYNERGY	获取价格	VOLTAGE CONTROLLED OSCILLATORS
VFC1300SA	SYNERGY	获取价格	VOLTAGE CONTROLLED OSCILLATORS
VFC1506	VISHAY	获取价格	High Precision Flip Chip
VFC150610K100TST	VISHAY	获取价格	RES,SMT,METAL FOIL,10.1K OHMS,61WV,.01% +/-TOL,-2,2PPM TC,1506 CASE
VFC150610R000CST	VISHAY	获取价格	RES,SMT,METAL FOIL,10 OHMS,61WV,.25% +/-TOL,-5,5PPM TC,1506 CASE
VFC150610R500CSW	VISHAY	获取价格	RES,SMT,METAL FOIL,10.5 OHMS,61WV,.25% +/-TOL,-5,5PPM TC,1506 CASE
VFC150611K500TSW	VISHAY	获取价格	RES,SMT,METAL FOIL,11.5K OHMS,61WV,.01% +/-TOL,-2,2PPM TC,1506 CASE