VO

−

+

RL

CL

VI

VCC+

VCC−

VO

−

+

100

Ω

VCC+

VCC−

RS

900

Ω

VI = 0 V

6 Parameter Measurement Information

Figure 7. Unity-Gain Amplifier

Figure 8. Noise-Test Circuit

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7

友台半导体有限公司

Quadruple Operational Amplifiers

UMW

UMW LM124/LM224/2902

R

7 Detailed Description

7.1 Overview

These devices consist of four independent high-gain frequency-compensated operational amplifiers that are

designed specifically to operate from a single supply over a wide range of voltages. Operation from split supplies

also is possible if the difference between the two supplies is 3 V to 32 V (3 V to 26 V for the LM2902 device),

and VCC is at least 1.5 V more positive than the input common-mode voltage. The low supply-current drain is

independent of the magnitude of the supply voltage.

Applications include transducer amplifiers, DC amplification blocks, and all the conventional operational-amplifier

circuits that now can be more easily implemented in single-supply-voltage systems. For example, the LM124

device can be operated directly from the standard 5-V supply that is used in digital systems and provides the

required interface electronics, without requiring additional ±15-V supplies.