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ICL8038  
TM  
Data Sheet  
April 2001  
File Number 2864.4  
Precision Waveform Generator/Voltage  
Controlled Oscillator  
Features  
o
• Low Frequency Drift with Temperature. . . . . . 250ppm/ C  
• Low Distortion . . . . . . . . . . . . . . . 1% (Sine Wave Output)  
• High Linearity . . . . . . . . . . .0.1% (Triangle Wave Output)  
• Wide Frequency Range . . . . . . . . . . . .0.001Hz to 300kHz  
• Variable Duty Cycle . . . . . . . . . . . . . . . . . . . . . 2% to 98%  
• High Level Outputs. . . . . . . . . . . . . . . . . . . . . . TTL to 28V  
The ICL8038 waveform generator is a monolithic integrated  
circuit capable of producing high accuracy sine, square,  
triangular, sawtooth and pulse waveforms with a minimum of  
external components. The frequency (or repetition rate) can  
be selected externally from 0.001Hz to more than 300kHz  
using either resistors or capacitors, and frequency  
tle  
80  
-
modulation and sweeping can be accomplished with an  
external voltage. The ICL8038 is fabricated with advanced  
monolithic technology, using Schottky barrier diodes and thin  
film resistors, and the output is stable over a wide range of  
temperature and supply variations. These devices may be  
interfaced with phase locked loop circuitry to reduce  
ci-  
e-  
• Simultaneous Sine, Square, and Triangle Wave  
Outputs  
• Easy to Use - Just a Handful of External Components  
Required  
er-  
/Vo  
e
o
temperature drift to less than 250ppm/ C.  
-
Ordering Information  
ed  
il-  
r)  
o
PART NUMBER  
STABILITY  
TEMP. RANGE ( C)  
PACKAGE  
14 Ld PDIP  
PKG. NO.  
E14.3  
o
ICL8038CCPD  
250ppm/ C (Typ)  
0 to 70  
o
ICL8038CCJD  
ICL8038BCJD  
ICL8038ACJD  
250ppm/ C (Typ)  
0 to 70  
14 Ld CERDIP  
14 Ld CERDIP  
14 Ld CERDIP  
F14.3  
F14.3  
F14.3  
tho  
o
180ppm/ C (Typ)  
0 to 70  
-
ds  
r-  
o
120ppm/ C (Typ)  
0 to 70  
Pinout  
Functional Diagram  
ICL8038  
(PDIP, CERDIP)  
TOP VIEW  
V+  
po-  
n,  
i-  
6
CURRENT  
SOURCE  
COMPARATOR  
#1  
#1  
I
SINE WAVE  
10  
1
2
3
4
5
6
7
14  
13  
12  
11  
10  
9
NC  
NC  
ADJUST  
2I  
or,  
e-  
SINE  
WAVE OUT  
COMPARATOR  
#2  
C
TRIANGLE  
OUT  
SINE WAVE  
ADJUST  
ra-  
-
V- OR GND  
DUTY CYCLE  
FREQUENCY  
ADJUST  
TIMING  
CAPACITOR  
CURRENT  
SOURCE  
#2  
FLIP-FLOP  
SQUARE  
WAVE OUT  
V+  
V- OR GND  
11  
FM SWEEP  
INPUT  
8
FM BIAS  
ed  
lla-  
SINE  
BUFFER  
BUFFER  
CONVERTER  
9
3
2
i-  
,
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
1-888-INTERSIL or 321-724-7143 | Intersil and Design is a trademark of Intersil Americas Inc.  
Copyright © Intersil Americas Inc. 2001, All Rights Reserved  
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