RC4152M FAIRCHILD [Fairchild Semiconductor], RC4152M Datasheet

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RC4152M

Manufacturer Part Number
RC4152M
Description
Voltage-to-Frequency Converters
Manufacturer
FAIRCHILD [Fairchild Semiconductor]
Datasheets

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
RC4152M
Manufacturer:
RAY
Quantity:
5 510
Features
• Single supply operation
• Pulse output DTL/TTL/CMOS compatible
• Programmable scale factor (K)
• High noise rejection
• Inherent monotonicity
• Easily transmittable output
• Simple full scale trim
• Single-ended input, referenced to ground
• V-F or F-V conversion
• Voltage or current input
• Wide dynamic range
Applications
• Precision voltage-to-frequency converters
• Pulse-width modulators
• Programmable pulse generators
• Frequency-to-voltage converters
• Integrating analog-to-digital converters
• Long-term analog integrators
• Signal conversion:
Functional Block Diagram
RC4152
Voltage-to-Frequency Converters
– Current-to-Frequency
– Temperature-to-Frequency
– Pressure-to-Frequency
– Capacitance-to-Frequency
– Frequency-to-Current
Open Collector
Source Output
Reference
Switched
Switched
Current
Ground
Output
Output
4
1
2
3
Reference
Switched
Switched
Voltage
Current
Source
Open Collector
Logic Output
Transistor
4152
One Shot
Precision
• Signal isolation:
• Signal encoding:
• Frequency scaling
• DC motor speed control
Description
The RC4152 is a monolithic circuit containing all of the
active components needed to build a complete voltage-to-
frequency converter. Circuits that convert a DC voltage to a
pulse train can be built by adding a few resistors and capaci-
tors to the internal comparator, one-shot, voltage reference,
and switched current source. Frequency-to-voltage convert-
ers (FVCs) and many other signal conditioning circuits are
also easily created using these converters.
The RC4151 was the first monolithic VFC available and
offers guaranteed temperature and accuracy specifications.
The converter is available in a standard 8-pin plastic DIP.
Reference
Comparator
Voltage
Open Loop
– VFC—opto-isolaton—FVC
– ADC with opto-isolation
– FSK modulation/demodulation
– Pulse-width modulation
4152-01
7
8
6
5
-V
One Shot
Timing
S
Comparator
Inputs
www.fairchildsemi.com
Rev. 1.0.1

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RC4152M Summary of contents

Page 1

RC4152 Voltage-to-Frequency Converters Features • Single supply operation • Pulse output DTL/TTL/CMOS compatible • Programmable scale factor (K) • High noise rejection • Inherent monotonicity • Easily transmittable output • Simple full scale trim • Single-ended input, referenced to ground ...

Page 2

PRODUCT SPECIFICATION Pin Assignments I 1 OUT OUT GND 4 4152-02 Absolute Maximum Ratings Parameter Supply Voltage Internal Power Dissipation Input Voltage Output Sink Current (Frequency Output) Output Short Circuit to Ground Storage Temperature Range ...

Page 3

RC4152 Electrical Characteristics (V = +15V, and T = +25°C unless otherwise noted Parameters Power Supply Requirements (Pin 8) Supply Current Supply Voltage Input Comparator (Pins 6 and Input Bias Current Input Offset Current Input ...

Page 4

PRODUCT SPECIFICATION Typical Performance Characteristics 10 KHz Current-Sourced VFC Nonlinearity vs. Input Voltage +0.01 +0.005 0 -0.005 -0.01 -0.015 ( KHz Voltage-Sourced VFC Nonlinearity vs. Input Voltage +0.01 +0.005 0 -0.005 ...

Page 5

RC4152 Principles of Operation The RC4152 contains the following components: an open loop comparator, a precision one-shot timer, a switched volt- age reference, a switched current source, and an open collec- tor logic output transistor. These functional blocks are internally ...

Page 6

PRODUCT SPECIFICATION Applications Single Supply VFC The stand-alone voltage-to-frequency converter is one of the simplest applications for the RC4152. This application uses only passive external components to create the least expen- sive VFC circuit (see Figure 1). The positive input ...

Page 7

RC4152 + 5.1K F OUT Output Frequency 0 F 10kHz O F OUT Output Frequency 0 F 10kHz OUT 0.005 F 1N914 - 100K -10V OP-27 3 10k 1 ...

Page 8

PRODUCT SPECIFICATION The input waveform must have fast slewing edges, and the differentiated input signal must be less than the timing period of the one-shot, 1 differentiator and O O divider are used to shape and ...

Page 9

RC4152 +15V 0.022 Frequency Input 0 F 10kHz O 5.0 V P-P Squarewave 6 0. ...

Page 10

PRODUCT SPECIFICATION Schematic Diagram 10 RC4152 ...

Page 11

RC4152 Notes: PRODUCT SPECIFICATION 11 ...

Page 12

... PRODUCT SPECIFICATION Ordering Information Part Number Package RC4152N N RC4152M M RV4152N N Notes 8-lead plastic DIP M = 8-lead plastic SOIC LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION ...

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