PRINCIPLE FUNCTION Amplification Single Ended Signals (Voltage) P

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PRINCIPLE FUNCTION Amplification Single Ended Signals (Voltage) P

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AMPLIFIER PROTECTION
PRINCIPLE FUNCTION
Amplification Single Ended Signals (Voltage) Protection Functions External Devices Additional Adjustable Current/Voltage Source
AM461
6.35V
Input voltage single ended
VOUT e.g. 0.5/10V
AM461
e.g. 0.1V, 0.5V
VREF z.B. 3.3V
1.5mA
TYPICAL APPLICATIONS
Impedance Converter Adjustable Voltage Source Voltage Regulator with Additional Functions Protection Microcontroller (Frame ASIC Concept [1]) Protected Current Source
analog microelectronics
Analog Microelectronics GmbH Fahrt 55124 Mainz, Germany Internet: http://www.analogmicro.info Phone: Fax: E-mail: (0)6131/91 (0)6131/91 info@analogmicro.info
October 2002 Rev.
AMPLIFIER PROTECTION
TABLE CONTENTS
Features Description Block Diagram Electrical Specifications Block diagram Pinout AM461 Principial Application Examples Delivery Additional Literature
AM461
TABLE FIGURES
Table1: Pinout AM461 Figure Block diagram AM461 Figure Block diagram AM461 Figure Pinout AM461 Figure Application processor interface Figure Application amplifiers impedance converter Figure Application voltage regulator protection controllers
analog microelectronics
October 2002
AMPLIFIER PROTECTION
FEATURES
Supply Voltage Range: 6.35V Wide Operating Temperature Range: -40°C.+85°C Voltage Reference: Additional Voltage/Current Source Operational Amplifier Stage with Integrated Driver Output Adjustable Gain Adjustable Output Voltage Range e.g. 0.5/10V, others Reverse Polarity Protection Short Circuit Protection Output Current Limitation Low-Cost: Replaces Multitude Number Discrete Components
AM461
DESCRIPTION
AM461 universal useable amplifier protection with multitude additional functions. contains externally adjustable operational amplifier conditioning single ended input signals. This amplifier integrated output driver stage with ability source without need external transistor. addition, voltage reference supply external components another operational amplifier that used current/voltage source comparator integrated. Basic features wide range integrated protection functions. protected against reverse polarity build-in output current limitation. Using amplifier AM461 possible generate stable standard voltages ranges (e.g. 0-5/10V) easy low-cost way.
BLOCK DIAGRAM
CVREF
VREF
AM461
CVSET
Voltage Reference
VOUT
Figure Block diagram AM461
analog microelectronics
October 2002
AMPLIFIER PROTECTION
ELECTRICAL SPECIFICATIONS
Tamb 25°C, 24V, IREF 1mA, 2.2µF (unless otherwise noted)
Parameter Voltage Range Quiescent Current Temperature Specifications Operating Storage Junction Thermal Resistance Tamb Voltage Reference Voltage Current VREF Temperature Line Regulation VREF IREF dVREF/dT dVREF/dV dVREF/dV Load Regulation dVREF/dI dVREF/dI Current/Voltage Source Internal Reference Temperature Current Source: VBG/RSET Adjustable Current Range Output Voltage ICVREF VCVREF VCVREF Voltage Source: Adjustable Voltage Range VCVREF VCVREF Output Current ICVREF ICVREF Load Capacitance CVREF CCVREF Source, 100k Sink Source mode dVBG/dT Tamb 40.+85°C 1.20 1.27 IREF Tamb 40.+85°C 6V.35V 6V.35V, IREF 4.75 0.05 0.06 5.00 DIL8 plastic package plastic package Symbol Tamb 40.+85°C, IREF Conditions Min. Typ.
AM461
Max.
Unit
°C/W °C/W
5.25 10.0 ±140 0.10 0.15
ppm/°C ppm/V ppm/V %/mA %/mA
1.35 ±140
ppm/°C
-100
analog microelectronics
October 2002
AMPLIFIER PROTECTION
Parameter Voltage Output Stage Adjustable Gain Input Range GOP1 Power Supply Rejection Ratio Offset Voltage Temperature Input Bias Current Temperature Output Voltage Range PSRR dVOS/dT dIB/dT VOUT VOUT Output Current Limitation Output Current Output Resistance Load Resistance Load Capacitance VOUT Protection Functions Protection against reverse polarity Ground VOUT, ILIM IOUT ROUT VOUT 10V, 100k Source Source ±0.5 Symbol Conditions Min. Typ.
AM461
Max. Unit
ILIM
µV/°C pA/°C
Currents flowing into negative
BOUNDARY CONDITIONS
Parameter Gain Resistors Reference Adjustment Resistors Stabilisation Capacitance VREF Symbol Conditions Min. Typ. Max. Unit
analog microelectronics
October 2002
AMPLIFIER PROTECTION
BLOCK DIAGRAM PINOUT AM461
AM461
CVREF
VREF
AM461
CVSET
Voltage Reference
VOUT
Figure Block diagram AM461
NAME CVREF CVSET VOUT VREF
DESIGNATION Output Input Positive input Negative input Voltage output Supply voltage ground Output voltage reference
CVREF CVSET
VREF VOUT
Figure Pinout AM461
Table1: Pinout AM461
analog microelectronics
October 2002
AMPLIFIER PROTECTION
PRINCIPLE APPLICATION EXAMPLES
Application processor interface
AM461
Reverse polarity short circuit protection VCVREF 3.3V VREF 6.35V
AM461
Figure Application processor interface
e.g. 0.5/10V
Application amplifier impedance converter
Reverse polarity short circuit protection 6.35V
0.1, 0.5V others
AM461
e.g. 0.5/10V
Figure Application amplifier impedance converter
Application voltage regulator protection controllers
6.35V Reverse polarity short circuit protection
VREF
AM461
Figure Application voltage regulator protection controllers
analog microelectronics
October 2002
AMPLIFIER PROTECTION
DELIVERY
AM461 amplifier protection available DIP08, SO08
AM461
ADDITIONAL LITERATURE
Concept Frame ASICs: http://www.Frame-ASIC.com/ Analog Microelectronics` Homepage: http://www.analogmicro.info/
NOTES
information provided herein believed reliable; however, Analog Microelectronics assumes responsibility inaccuracies omissions. Analog Microelectronics assumes responsibility this information, such information shall entirely user's risk. Prices specifications subject change without notice. patent rights licences circuits described herein implied granted third party. Analog Microelectronics does authorise warrant Analog Microelectronics product life support devices and/or systems.
analog microelectronics
October 2002

PRINCIPLE FUNCTION Amplification Single Ended Signals (Voltage) P

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