Op-Amp Circuits Manual (eBook)

Front Cover 1
Op-amp Circuits Manual: Including OTA Circuits 4
Copyright Page 5
Table of Contents 6
Preface 8
Chapter 1. Basic principles and configurations 10
Op-amp basics 11
Basic configurations 12
Closed-loop amplifiers 14
Op-amp parameters 16
Practical op-amps 18
Offset nulling 21
Applications round up 21
Chapter 2. Amplifiers and active filters 28
Inverting amplifier circuits 28
Non-inverting amplifier circuits 29
Voltage follower circuits 32
Biasing accuracy 34
Current-booster follower circuits 35
Adders and subtractors 37
Balanced phase splitter 38
Active filters 39
Active filter circuits 40
Variable active filters 43
Chapter 3. Voltage comparator circuits 47
Basic voltage comparator circuits 47
Special voltage comparator circuits 49
Window comparators 51
Analogue-activated circuits 53
Micro-power operation 56
A sample-pulse generator 58
Chapter 4. Waveform generator circuits 61
Sine wave oscillators 61
Thermistor stabilization 63
Diode stabilization 64
Twin-T oscillators 66
Square wave generators 68
Variable symmetry 70
Resistance activation 70
Triangle/square generation 73
Switching circuits 74
Chapter 5. Instrumentation and test-gear circuits 77
Electronic rectifiers 77
Precision rectifiers 79
ac/dc converters 80
DVM converter circuits 81
Analogue meter circuits 84
Voltage reference circuits 87
Voltage regulator circuits 89
Chapter 6. Compound circuits 93
Current boosting 93
Compound voltage followers 95
Compound inverting amplifiers 100
Compound relaxation oscillators 102
2-wire information systems 104
Practical transmitter circuits 107
A 2-wire receiver 109
Chapter 7. Norton op-amp circuits 111
LM3900 basic principles 112
Current mirrors 113
Biasing techniques 115
Linear amplifier circuits 115
Comparators and Schmitt circuits 119
Comparator applications 121
Voltage regulator circuits 124
Current regulator circuits 125
Waveform generator circuits 128
The LM359 dual op-amp 130
Using the LM359 132
/set programming 134
Wideband amplifiers 137
Chapter 8. CA3080 OTA circuits 139
CA3080 basics 141
Some finer points 144
Basic circuits 145
Closed-loop operation 146
Offset balancing 147
Voltage-controlled gain 148
Comparator circuits 150
Schmitt trigger circuits 151
Astable circuits 152
Chapter 9. LM13600 OTA circuits 155
Linearizing diodes 155
Controlled impedance buffers 158
VCA circuits 161
Offset biasing 165
An automatic gain control amplifier 165
Voltage-controlled resistors 166
Voltage-controlled filters 169
Voltage controlled oscillators 173
The LM13700 176
Chapter 10. LM10 Op-amp and reference circuits 177
LM10 basics 177
Power supply connections 179
Shunt operation 180
The reference amplifier 182
Op-amp applications 184
LM10 transmitter circuits 185
Comparator circuits 187
Astable circuits 190
Voltage regulator circuits 192
On/off-type voltage indicators 196
On/off-type current indicators 198
On/off-type R indicators 199
Gated alarms 200
Gated fault indicators 202
Remote-amplifier circuits 204
Fault indicators 206
Fault alarms 209
Meter amplifier circuits 210
Index 216