ICL8038AMJD HARRIS [Harris Corporation], ICL8038AMJD Datasheet

ICL8038AMJD

Manufacturer Part Number

ICL8038AMJD

Description

Precision Waveform Generator/ Voltage Controlled Oscillator

Manufacturer

HARRIS [Harris Corporation]

Datasheet

1.ICL8038AMJD.pdf (10 pages)

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Download datasheet (153Kb)

November 1996

CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.

Features

• Low Frequency Drift with Temperature . . . 250ppm/

• 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

• Easy to Use - Just a Handful of External Components

Ordering Information

NOTE: Add /883B to part number if 883 processing is required.

Pinout

DUTY CYCLE

FREQUENCY

ICL8038CCPD

ICL8038CCJD

ICL8038BCJD

ICL8038ACJD

ICL8038BMJD (Note)

ICL8038AMJD (Note)

Outputs

Required

SINE WAVE

WAVE OUT

TRIANGLE

ADJUST

FM BIAS

ADJUST

Harris Corporation 1996

S E M I C O N D U C T O R

PART NUMBER

SINE

OUT

V+

(PDIP, CERDIP)

TOP VIEW

ICL8038

350ppm/

250ppm/

180ppm/

120ppm/

SINE WAVE

ADJUST

V- OR GND

TIMING

CAPACITOR

SQUARE

WAVE OUT

FM SWEEP

INPUT

STABILITY

C (Max)

C (Typ)

Functional Diagram

CURRENT

SOURCE

8-153

BUFFER

Description

The ICL8038 waveform generator is a monolithic integrated

circuit capable of producing high accuracy sine, square, tri-

angular, 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 modula-

tion and sweeping can be accomplished with an external

voltage. The ICL8038 is fabricated with advanced monolithic

technology, using Schottky barrier diodes and thin ﬁlm resis-

tors, and the output is stable over a wide range of tempera-

ture and supply variations. These devices may be interfaced

with phase locked loop circuitry to reduce temperature drift

to less than 250ppm/

TEMP. RANGE (

-55 to 125

0 to 70

Precision Waveform Generator/

Voltage Controlled Oscillator

BUFFER

COMPARATOR

FLIP-FLOP

ICL8038

14 Ld PDIP

14 Ld CERDIP

PACKAGE

CONVERTER

File Number

SINE

E14.3

F14.3

PKG. NO.

V+

V- OR GND

2864.2

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ICL8038AMJD Summary of contents

Page 1

... 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 ICL8038BMJD (Note) ICL8038AMJD (Note) NOTE: Add /883B to part number if 883 processing is required. Pinout ICL8038 (PDIP, CERDIP) TOP VIEW SINE WAVE 1 14 ADJUST SINE ...

Page 2

Absolute Maximum Ratings Supply Voltage ( 36V Input ...

Page 3

Electrical Speciﬁcations V SUPPLY PARAMETER SYMBOL Output Impedance Z OUT Sine Wave Amplitude V SINE THD THD THD Adjusted THD NOTES and R currents not included 20V; R and R = 10k , ...

Page 4

Test Circuit SW N.C. Detailed Schematic CURRENT SOURCES EXT EXT 11K 39K ...

Page 5

The levels of the current sources can, however, be selected over a wide range with two external resistors. Therefore, with the two currents set at values different from I and 2I, an asymmetrical sawtooth appears at Terminal 3 and pulses ...

Page 6

Reducing Distortion To minimize sine wave distortion the 82k pins 11 and 12 is best made variable. With this arrangement distortion of less than 1% is achievable. To reduce this even further, two potentiometers can be connected as shown in ...

Page 7

Typical Applications The sine wave output has a relatively high output impedance (1k Typ). The circuit of Figure 6 provides buffering, gain and amplitude adjustment. A simple op amp follower could also be used AMPLITUDE 4 ...

Page 8

VCO IN INPUT AMPLIFIER PHASE DETECTOR FIGURE 9. WAVEFORM GENERATOR USED AS STABLE VCO IN A PHASE-LOCKED LOOP HIGH FREQUENCY SYMMETRY 1N753A (6.2V) 1k 1,000pF +15V - 1k 741 10k ...

Page 9

Deﬁnition of Terms Supply Voltage (V ). The total supply voltage from SUPPLY V+ to V-. Supply Current. The supply current required from the power supply to operate the device, excluding load currents and the currents through R and R ...

Page 10

Typical Performance Curves 2 1.5 o 125 C 1 - LOAD CURRENT (mA) FIGURE 15. SQUARE WAVE SATURATION VOLTAGE vs LOAD CURRENT 1.2 1.1 1.0 0.9 0.8 0.7 0.6 ...

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