3718
LOW-VOLTAGE AUDIO POWER AMPLIFIER
DISCONTINUED PRODUCT
— FOR REFERENCE ONL
Y
Providing a low-cost, compact alternative to discrete transistor
amplifiers, the ULN3718M integrated circuit is ideal for application
as a headphone driver in portable radios, tape players, and other
battery-operated equipment. The low-power audio amplifier’s wide
frequency response and low noise ensure premium performance.
The amplifier will operate (at reduced volume) with supply voltages
as low as 1.8 V without a significant increase in distortion. This feature
allows operation with a 3 V battery supply and minimizes concern
about weak batteries. The class-AB audio amplifier has low quiescent
current drain for maximum battery life. This device is rated for opera-
tion with supply voltages up to 9 V.
The ULN3718M audio amplifier is supplied in an 8-pin mini-DIP
plastic package. A copper alloy lead frame gives the amplifier en-
hanced power dissipation ratings.
FEATURES
n Wide Operating Voltage Range 1.8 - 9.0 V
n Low Quiescent Current
n AC Short-Circuit Protection
n Low External Parts Count
n Low Distortion
n 40 dB Voltage Gain
n Low Noise
3718
LOW-VOLTAGE
AUDIO POWER AMPLIFIER
Always order by complete part number: ULN3718M .
Data Sheet
27117.25
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V
CC
. . . . . . . . . . . . . . 10 V
Package Power Dissipation,
P
D
. . . . . . . . . . . . . . . . . . . . See Graph
Operating Temperature Range,
T
A
. . . . . . . . . . . . . . . . -20°C to +85°C
Storage Temperature Range,
T
S
. . . . . . . . . . . . . . . -65°C to +150°C