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參數(shù)資料
| 型號： | VFC100AG |
| 英文描述： | Synchronized VOLTAGE-TO-FREQUENCY CONVERTER |
| 中文描述： | 同步電壓頻率轉(zhuǎn)換器 |
| 文件頁數(shù)： | 1/15頁 |
| 文件大?。?/td> | 205K |
| 代理商： | VFC100AG |
1984 Burr-Brown Corporation
PDS-547H
Printed in U.S.A. June, 1995
FPO
VFC100
FEATURES
G
FULL-SCALE FREQUENCY SET BY
SYSTEM CLOCK; NO CRITICAL
EXTERNAL COMPONENTS REQUIRED
G
PRECISION 10V FULL-SCALE INPUT,
0.5% max GAIN ERROR
G
ACCURATE 5V REFERENCE VOLTAGE
G
EXCELLENT LINEARITY:
0.02% max at 100kHz FS
0.1% max at 1MHz FS
G
VERY LOW GAIN DRIFT: 50ppm/
°
C
APPLICATIONS
G
A/D CONVERSION
G
PROCESS CONTROL
G
DATA ACQUISITION
G
VOLTAGE ISOLATION
DESCRIPTION
The VFC100 voltage-to-frequency converter is an
important advance in VFCs. The well-proven charge
balance technique is used; however, the critical reset
integration period is derived from an external clock
frequency. The external clock accurately sets an out-
put full-scale frequency, eliminating error and drift
from the external timing components required for
other VFCs. A precision input resistor is provided
which accurately sets a 10V full-scale input voltage.
In many applications the required accuracy can be
achieved without external adjustment.
The open collector active-low output provides fast fall
time on the important leading edge of output pulses,
and interfaces easily with TTL and CMOS circuitry.
An output one-shot circuit is particularly useful to
provide optimum output pulse widths for optical cou-
plers and transformers to achieve voltage isolation. An
accurate 5V reference is also provided which is useful
for applications such as offsetting for bipolar input
voltages, exciting bridges and sensors, and autocali-
bration schemes.
Synchronized
VOLTAGE-TO-FREQUENCY CONVERTER
V
IN
R
IN
–V
CC
Integrator
Amplifier
Comparator
Clocked
Logic
Output
One-Shot
5
4
14
10
7
6
Non-Inverting
Input
– Comparator
Input
Clock
Input
SW
1
1mA
15
1
+V
CC
11
12
f
OUT
Digital
Common
9
8
–V
CC
C
OS
+ Comparator
Input
20k
13
Analog
Common
5V
Reference
16
V
REF
C
INT
V
OUT
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
Internet: http://www.burr-brown.com/ FAXLine: (800) 548-6133 (US/Canada Only) Cable: BBRCORP Telex: 066-6491 FAX: (520) 889-1510 Immediate Product Info: (800) 548-6132
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| VFC100BG | Synchronized VOLTAGE-TO-FREQUENCY CONVERTER |
| VFC101 | Synchronized VOLTAGE-TO-FREQUENCY CONVERTER |
| VFC101JN | Synchronized VOLTAGE-TO-FREQUENCY CONVERTER |
| VFC101KN | Synchronized VOLTAGE-TO-FREQUENCY CONVERTER |
| VFC110 | High-Frequency VOLTAGE-TO-FREQUENCY CONVERTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| VFC100BG | 制造商:BB 制造商全稱:BB 功能描述:Synchronized VOLTAGE-TO-FREQUENCY CONVERTER |
| VFC101 | 制造商:BB 制造商全稱:BB 功能描述:Synchronized VOLTAGE-TO-FREQUENCY CONVERTER |
| VFC101JN | 制造商:BB 制造商全稱:BB 功能描述:Synchronized VOLTAGE-TO-FREQUENCY CONVERTER |
| VFC101KN | 制造商:BB 制造商全稱:BB 功能描述:Synchronized VOLTAGE-TO-FREQUENCY CONVERTER |
| VFC110 | 制造商:BB 制造商全稱:BB 功能描述:High-Frequency VOLTAGE-TO-FREQUENCY CONVERTER |
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