LLV321

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

5 of 6

www.unisonic.com.tw

QW-R105-041.A

APPLICATION INFORMATION

General Description

The UTC LLV321 is a low cost, single supply, low voltage and voltage feedback amplifier which is characterized

a rail- to- rail output. It is designed to operate on a CMOS process, and is unity gain stable. Figure 1 shows the

typical non-inverting circuit schematic

+

-

UTC

LLV321

0.01µF

+

6.8µF

OUT

+IN

Figure 1. Typical Non-Inverting Configuration

Power Dissipation

For the UTC LLV321, the maximum internal power dissipation is directly depending on the maximum junction

temperature. If the maximum junction temperature is higher than 150°C, some performances are declined. If the

maximum junction temperature becomes higher than 175°C for an extended time, device failure may be cause.

Driving Capacitive Loads

performance. Driving a capacitive load introduces phase-lag into the output signal, which reduces phase margin in

the amplifier. The unity gain follower is the most sensitive configuration. In a unity gain follower configuration, the

UTC LLV321 requires a 450Ω series resistor to drive a 200pF load. The response is as seen in TYPICAL

CHARACTERISTIC.