MC1494P ONSEMI [ON Semiconductor], MC1494P Datasheet

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MC1494P

Manufacturer Part Number
MC1494P
Description
LINEAR FOUR-QUADRANT MULTIPLIER INTEGRATED CIRCUIT
Manufacturer
ONSEMI [ON Semiconductor]
Datasheet

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Part Number
Manufacturer
Quantity
Price
Part Number:
MC1494P
Manufacturer:
ON/安森美
Quantity:
20 000
Linear Four-Quadrant
Multiplier
product of two input voltages. Typical applications include: multiply, divide,
square root, mean square, phase detector, frequency doubler, balanced
modulator/ demodulator, electronic gain control.
level–shift circuitry and voltage regulator. Scale factor, input offsets and output
offset are completely adjustable with the use of four external potentiometers.
Two complementary regulated voltages are provided to simplify offset
adjustment and improve power supply rejection.
MOTOROLA ANALOG IC DEVICE DATA
The MC1494 is designed for use where the output voltage is a linear
The MC1494 is a variable transconductance multiplier with internal
Operates with 15 V Supplies
Excellent Linearity: Maximum Error (X or Y) 1.0 %
Wide Input Voltage Range: 10 V
Adjustable Scale Factor, K (0.1 nominal)
Single–Ended Output Referenced to Ground
Simplified Offset Adjust Circuitry
Frequency Response (3.0 dB Small–Signal): 1.0 MHz
Power Supply Sensitivity: 30 mV/V typical
– 2.0
– 4.0
– 6.0
– 8.0
–10
8.0
6.0
4.0
2.0
10
0
–10 – 8.0 – 6.0 – 4.0 – 2.0
Figure 1. Multiplier Transfer Characteristic
X
Y
V X , INPUT VOLTAGE (V)
k =
0
10
1
2.0
KXY
+
4.0
6.0
8.0
10
1.00
0.75
0.50
0.25
0
– 50
Figure 2. Linearity Error versus Temperature
– 25
Motorola, Inc. 1996
MC1494P
Device
LINEAR FOUR–QUADRANT
MULTIPLIER INTEGRATED
0
T A , AMBIENT TEMPERATURE ( C)
ORDERING INFORMATION
SEMICONDUCTOR
MC1494
TECHNICAL DATA
PLASTIC PACKAGE
Order this document by MC1494/D
16
Temperature Range
25
Tested Operating
T A = 0 to + 70 C
CIRCUIT
1
CASE 648C
P SUFFIX
50
75
Plastic DIP
100
Package
Rev 0
125
1

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MC1494P Summary of contents

Page 1

... INPUT VOLTAGE (V) MOTOROLA ANALOG IC DEVICE DATA LINEAR FOUR–QUADRANT MULTIPLIER INTEGRATED Device MC1494P Figure 2. Linearity Error versus Temperature 1.00 0.75 0.50 0.25 0 4.0 6.0 8.0 10 – 50 – 25 Motorola, Inc. 1996 Order this document by MC1494/D MC1494 ...

Page 2

MAXIMUM RATINGS ( unless otherwise noted.) Rating Power Supply Voltages Differential Input Signal Common Mode Input Voltage V CMY = CMX = Power Dissipation ...

Page 3

Figure 3. Linearity – f ...

Page 4

Figure 9. Power Supply Sensitivity – 15 MC1494 – – 8 ...

Page 5

Figure 15. Large Signal Voltage versus Frequency 20 10 With MC1456 Buffer Op Amp Amp 100 1 FREQUENCY (Hz) Introduction The MC1494 is a monolithic, four–quadrant ...

Page 6

External Circuitry is Depicted within Dotted Lines 4 Current and Voltage 9 Regulator –V R – 4 – ...

Page 7

510 510 not necessary if inputs are DC coupled. It should be pointed out that there is nothing magic about setting the scale factor ...

Page 8

Offset and Scale Factor Adjustment Procedure The adjustment procedure for the circuit of Figure 18 is Input Offset 1. Connect oscillator (1.0 kHz, 5.0 Vpp sinewave) to the ‘‘Y’’ input (Pin 9). 2. Connect ‘‘X’’ input (Pin 10) ...

Page 9

Figure 19, the “X” input zero and “Y” input zero will be at approximately 15 MHz and 7.0 MHz respectively. It should be noted that the MC1494 multiplies in the time domain, hence, its frequency response is found by means ...

Page 10

510 16 k This shows that all error terms can be eliminated with only three adjustment potentiometers, eliminating one of the input offset adjustments. For instance, if ...

Page 11

MC1494 510 – simpler approach, since it does not involve breaking the loop (thus making it more practical ...

Page 12

V +15 V The circuit of Figure 26 demonstrates the linear AGC amplifier. The amplifier can handle 1.0 Vrms and exhibits a gain of approximately 20 ...

Page 13

Figure 27. Balanced Modulator –15 V +15 V 0.1 F 3 MC1494 ...

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Because of the unique nature of a multiplier, i.e., two inputs and one output, operating specifications are difficult to define and interpret. Indeed the same specification may be defined in several completely different ways depending upon which manufacturer is doing ...

Page 15

NOTE 5 –T– SEATING PLANE 0.13 (0.005 MOTOROLA ANALOG IC DEVICE DATA MC1494 OUTLINE DIMENSIONS P SUFFIX PLASTIC PACKAGE CASE 648C–03 ISSUE C –B– L ...

Page 16

Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of ...

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