廬
VFC101
Synchronized
VOLTAGE-TO-FREQUENCY CONVERTER
FEATURES
q
FULL-SCALE FREQUENCY SET BY
SYSTEM CLOCK
q
MULTIPLE INPUT RANGES:
5V, 8V, 10V Full Scale
q
ACCURATE 5V REFERENCE VOLTAGE
q
LOW NONLINEARITY:
0.02% max at 100kHz FS
q
LOW GAIN DRIFT: 40ppm/
擄
C
DESCRIPTION
The VFC101 voltage-to-frequency converter uses the
proven charge-balance technique with internal digital
logic to control the critical reference integration pe-
riod. Reference timing is derived from an external
clock signal which accurately sets the full-scale fre-
quency. This technique eliminates the errors and drift
from external timing components which are required
with other VFCs.
Internal resistors provide accurate full-scale input
ranges of 5V, 8V or 10V inputs without external
resistors or trimming. An accurate 5V reference volt-
age output is useful for bridge or sensor excitation.
With simple pin interconnections, it can provide half-
scale offset to allow bipolar input voltages.
The open-collector frequency output interfaces easily
to CMOS or TTL circuitry. Output one-shot circuitry
may be used to optimize the output pulse width for
optical couplers or transformers.
The VFC101 is packaged in a surface-mount 20-pin
PLCC (plastic leaded chip carrier) package.
APPLICATIONS
q
INTEGRATING A/D CONVERTER
q
MULTICHANNEL DATA ACQUISITION
q
FREQUENCY-TO-VOLTAGE CONVERSION
q
VOLTAGE ISOLATION
+V
CC
8
5
4
17
13
2
14
10k鈩?/div>
10k鈩?/div>
16k鈩?/div>
Integrator
Comparator
Clocked
Logic
Output
One-Shot
15
7
9
4k鈩?/div>
10
6
1mA
I
1
鈥揤
CC
16
18
20
12
11
鈥揤
CC
5V
Reference
Tel: (520) 746-1111 鈥?Twx: 910-952-1111 鈥?Cable: BBRCORP 鈥?/div>
漏 1988 Burr-Brown Corporation
鈥?Tucson, AZ 85734 鈥?Street Address: 6730 S. Tucson Blvd. 鈥?Tucson, AZ 85706
Telex: 066-6491 鈥?FAX: (520) 889-1510 鈥?Immediate Product Info: (800) 548-6132
PDS-779B
Printed in U.S.A. October, 1993
VFC101JN相關(guān)型號(hào)PDF文件下載
-
型號(hào)
版本
描述
廠商
下載
-
英文版
Synchronized VOLTAGE-TO-FREQUENCY CONVERTER
BB
-
英文版
Synchronized VOLTAGE-TO-FREQUENCY CONVERTER
BURR-BROWN ...
-
英文版
Synchronized VOLTAGE-TO-FREQUENCY CONVERTER
BB
-
英文版
Synchronized VOLTAGE-TO-FREQUENCY CONVERTER
BURR-BROWN ...
-
英文版
High-Frequency VOLTAGE-TO-FREQUENCY CONVERTER
BB
-
英文版
High-Frequency VOLTAGE-TO-FREQUENCY CONVERTER
BURR-BROWN ...
-
英文版
Precision Single Power Supply VOLTAGE-TO-FREQUENCY CONVERTER
BB
-
英文版
Precision Single Power Supply VOLTAGE-TO-FREQUENCY CONVERTER
BURR-BROWN ...
-
英文版
High Precision Flip Chip, Patents Pending (Industrialized Co...
-
英文版
High Precision Flip Chip, Patents Pending (Industrialized Co...
VISAY [Vis...
-
英文版
High Precision Flip Chip
VISAY [Vis...
-
英文版
Synchronized VOLTAGE-TO-FREQUENCY CONVERTER
BB
-
英文版
Synchronized VOLTAGE-TO-FREQUENCY CONVERTER
BURR-BROWN ...
-
英文版
Synchronized VOLTAGE-TO-FREQUENCY CONVERTER
BB
-
英文版
Synchronized VOLTAGE-TO-FREQUENCY CONVERTER
BURR-BROWN ...
-
英文版
Voltage to Frequency Converter, Bipolar, PQCC20,
BB
-
英文版
Synchronized VOLTAGE-TO-FREQUENCY CONVERTER
BB
-
英文版
Synchronized VOLTAGE-TO-FREQUENCY CONVERTER
BURR-BROWN ...
-
英文版
Synchronized VOLTAGE-TO-FREQUENCY CONVERTER
BB
-
英文版
Synchronized VOLTAGE-TO-FREQUENCY CONVERTER
BURR-BROWN ...
1
2
3
4
5
6
7
8
9
10
