ICL8038
Data Sheet
September 1998
File Number 2864.3
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
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
• Simultaneous Sine, Square, and Triangle Wave
Outputs
• Easy to Use - Just a Handful of External Components
Required
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temperature drift to less than 250ppm/ C.
Ordering Information
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PART NUMBER
STABILITY
TEMP. RANGE ( C)
PACKAGE
14 Ld PDIP
PKG. NO.
E14.3
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ICL8038CCPD
250ppm/ C (Typ)
0 to 70
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ICL8038CCJD
ICL8038BCJD
ICL8038ACJD
250ppm/ C (Typ)
0 to 70
14 Ld CERDIP
14 Ld CERDIP
14 Ld CERDIP
F14.3
F14.3
F14.3
o
180ppm/ C (Typ)
0 to 70
o
120ppm/ C (Typ)
0 to 70
Pinout
Functional Diagram
ICL8038
(PDIP, CERDIP)
TOP VIEW
V+
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
SINE
WAVE OUT
COMPARATOR
#2
C
TRIANGLE
OUT
SINE WAVE
ADJUST
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
SINE
CONVERTER
BUFFER
BUFFER
9
3
2
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 1999
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