Appendix E

Single-Supply Circuit Collection

E.1. Introduction

This appendix is a collection of single-supply op amp circuits. These are presented here because they are somewhat unusual and did not fit well into the material presented in the main portion of the book.

E.2. Attenuation

An inverting attenuation circuit1 can be thought of as a T network in the RG resistor. It is shown in Fig. E.1.
Figure E.1 Inverting attenuator circuit.
RG is replaced by a T network consisting of RINA, RINB, and R3. A set of normalized values of the resistor R3 for various levels of attenuation is shown in Table E.1. For non-tabulated attenuation values, the resistance is: ...

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