Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

VFC121 Datasheet(PDF) 1 Page - Burr-Brown (TI)

[Old version datasheet] Texas Instruments acquired Burr-Brown Corporation.
Part No. VFC121
Description  Precision Single Power Supply VOLTAGE-TO-FREQUENCY CONVERTER
Download  8 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  BURR-BROWN [Burr-Brown (TI)]
Homepage  http://www.burr-brown.com
Logo 

VFC121 Datasheet(HTML) 1 Page - Burr-Brown (TI)

   
Zoom Inzoom in Zoom Outzoom out
 1 / 8 page
background image
Precision Single Power Supply
VOLTAGE-TO-FREQUENCY CONVERTER
®
VFC121
International Airport Industrial Park
Mailing Address: PO Box 11400
Tucson, AZ 85734
• Street Address: 6730 S. Tucson Blvd. • Tucson, AZ 85706
Tel: (520) 746-1111 • Twx: 910-952-1111 • Cable: BBRCORP
• Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
APPLICATIONS
q INTEGRATING A/D CONVERSION
q ANALOG SIGNAL TRANSMISSION
q PHASE-LOCKED LOOP VCO
q GALVANICALLY ISOLATED SYSTEMS
FEATURES
q SINGLE SUPPLY OPERATION:
+4.5V to +36V
q f
O = 1.5MHz max
q LOW NONLINEARITY: 0.03% max at
100kHz, 0.1% max at 1MHz
q HIGH INPUT IMPEDANCE
q VOLTAGE REFERENCE OUTPUT
q THERMOMETER OUTPUT: 1mV/
°K
DESCRIPTION
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.
The high-impedance input accepts signals from ground
potential to V
S – 2.5V. Power supplies from 4.5V to
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.
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.
2.6V
V
T
One
Shot
V
REF
V
REF
Comparator
Integrator
I
REF
12
11
10
9
13
2
14
8
63
5
4
R
TRIM
+V
S
+5V
Ground
(Optional)
R
PULL UP
V
PULL UP
C
INT = 2700pF
V
IN = 0 to +2V
R
BIAS = 8kΩ
(Optional)
R
IN
R
IN = 8kΩ
C
OS = 1200pF
f
OUT =
0 to 100kHz
© 1989 Burr-Brown Corporation
PDS-971A
Printed in U.S.A. March, 1992


Html Pages

1  2  3  4  5  6  7  8 


Datasheet Download




Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Alldatasheet API   |   Link Exchange   |   Manufacturer List
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn