ICL8038
Data Sheet
September 1998
File Number 2864.3
Precision Waveform Generator/Voltage
Controlled Oscillator
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
temperature drift to less than 250ppm/
o
C.
Features
• Low Frequency Drift with Temperature . . . . . . .250ppm/
o
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
• Simultaneous Sine, Square, and Triangle Wave
Outputs
• Easy to Use - Just a Handful of External Components
Required
Ordering Information
PART NUMBER
ICL8038CCPD
ICL8038CCJD
ICL8038BCJD
ICL8038ACJD
STABILITY
250ppm/
o
C (Typ)
250ppm/
o
C (Typ)
180ppm/
o
C (Typ)
120ppm/
o
C (Typ)
TEMP. RANGE (
o
C)
0 to 70
0 to 70
0 to 70
0 to 70
PACKAGE
14 Ld PDIP
14 Ld CERDIP
14 Ld CERDIP
14 Ld CERDIP
PKG. NO.
E14.3
F14.3
F14.3
F14.3
Pinout
ICL8038
(PDIP, CERDIP)
TOP VIEW
Functional Diagram
V+
CURRENT
SOURCE
#1
I
14 NC
2I
2
3
4
5
6
7
13 NC
12 SINE WAVE
ADJUST
11 V- OR GND
10 TIMING
CAPACITOR
9
8
SQUARE
WAVE OUT
FM SWEEP
INPUT
BUFFER
BUFFER
CURRENT
SOURCE
#2
C
COMPARATOR
#2
10
6
COMPARATOR
#1
SINE WAVE 1
ADJUST
SINE
WAVE OUT
TRIANGLE
OUT
DUTY CYCLE
FREQUENCY
ADJUST
V+
FM BIAS
FLIP-FLOP
V- OR GND
11
SINE
CONVERTER
9
3
2
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
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Copyright
©
Intersil Corporation 1999
INTERSIL [ INTERSIL CORPORATION ]
