Motorola MC1495P, MC1495BP, MC1495D Datasheet

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The MC1495 is designed for use where the output is a linear product of two input voltages. Maximum versatility is assured by allowing the user to select the level shift method. Typical applications include: multiply, divide*, square root*, mean square*, phase detector, frequency doubler, balanced modulator/demodulator, and electronic gain control.

• Wide Bandwidth

• Excellent Linearity:

2% max Error on X Input, 4% max Error on Y Input Over Temperature 1% max Error on X Input, 2% max Error on Y Input at + 25°C

• Adjustable Scale Factor, K

• Excellent Temperature Stability

• Wide Input Voltage Range: ± 10 V

• ±15 V Operation

*When used with an operational amplifier.

LINEAR

FOUR-QUADRANT

MUL TIPLIER

SEMICONDUCTOR

TECHNICAL DATA

14

1

D SUFFIX

PLASTIC PACKAGE

CASE 751A

(SO-14)

MAXIMUM RATINGS (T

Rating Symbol Value Unit

Applied Voltage

(V2–V1, V14–V1, V1–V9, V1–V12, V1–V4, V1–V8, V12–V7, V9–V7, V8–V7, V4–V7)

Differential Input Signal V12–V

Maximum Bias Current I

Operating Temperature Range

Storage Temperature Range T

= + 25°C, unless otherwise noted.)

A

V4–V

MC1495

MC1495B

MOTOROLA ANALOG IC DEVICE DATA

∆V 30 Vdc

I T

3

13

A

stg

± (6+I13 RX)

9

± (6+I3 RY)

8

10 10

0 to +70

– 40 to +125 – 65 to +150 °C

Vdc

mA

°C

14

1

P SUFFIX

PLASTIC PACKAGE

CASE 646

ORDERING INFORMATION

Tested Operating

Device

MC1495D MC1495P MC1495BP

 Motorola, Inc. 1996 Rev 0

Temperature Range

TA = 0° to + 70°C

Package

SO–14 Plastic DIP Plastic DIPTA = – 40° to +125°C

1

MC1495

ELECTRICAL CHARACTERISTICS (+V = + 32 V , –V = –15 V, T

otherwise noted.)

Characteristics

Linearity (Output Error in percent of full scale)

TA = + 25°C

–10 < VX < +10 (VY = ±10 V) –10 < VY < +10 (VX = ±10 V)

TA = T

–10 < VX < +10 (VY = ±10 V) –10 < VY < +10 (VX = ±10 V)

Square Mode Error (Accuracy in percent of full scale after

Offset and Scale Factor adjustment)

TA = + 25°C TA = T

Scale Factor (Adjustable)

Input Resistance (f = 20 Hz) 7 R

Differential Output Resistance (f = 20 Hz) 8 R

Input Bias Current

Ibx =

Input Offset Current

|I9 – I12|T |I4 – I8|T

Average Temperature Coefficient of Input Offset Current

TA = T

Output Offset Current TA = + 25°C

|I14 – I2|T

Average Temperature Coefficient of Output Offset Current

TA = T

Frequency Response

3.0 dB Bandwidth, RL = 11 kΩ

3.0 dB Bandwidth, RL = 50 Ω (Transconductance Bandwidth) 3° Relative Phase Shift Between VX and V 1% Absolute Error Due to Input-Output Phase Shift

Common Mode Input Swing

(Either Input)

Common Mode Gain TA = + 25°C

(Either Input) TA = T

Common Mode Quiescent

Output Voltage

Differential Output Voltage Swing Capability 9 V Power Supply Sensitivity 12 S

Power Supply Current 12 I DC Power Dissipation 12 P

NOTES: 1.T

to T

Low

(I9 + I12)

Low

High

to T

Low

High

2R

13 RX R

L

Y

TA = T

= T

A

= T

A

Y

= 0°C for MC1495

Low

K =

(I4 + I8)

, Iby =

2

to T

High

to T

High

= +70°C for MC1495 T = +125°C for MC1495B = –40°C for MC1495B

2

TA = + 25°C

to T

Low

High

= + 25°C

A

to T

High

to T

High

to T

High

= + 25°C, I3 = I13 = 1.0 mA, RX = RY = 15 kΩ, RL = 11 kΩ, unless

A

Figure Symbol Min Typ Max Unit

5

E

RX

E

RY

E

RX

E

RY

5 E

– K – 0.1 –

6

6 |TC

6 |IOO|

6 |TC

9,10

11 CMV

11 A

12 V

SQ

inX

R

inY

O

I

bx, Iby

|I

|, |I

iox

IOO

BW

(3dB)

T

BW(3dB)

fφ fθ

CM

O1

V

O2

O +

S

7

D

lio

–

– –

– 300 – kΩ

– –

| –

ioy

|

–

– 2.5 –

–

|

– 20 –

– – – –

±10.5 ±12 –

–50 –40

– –

– ±14 – V –

– – 6.0 7.0 mA

– 135 170 mW

± 2.0

± 3.0

± 0.75

±1.0

±1.5

±1.0

30 20

2.0

0.4

10 20

3.0 80

750

30

–60 –50

21 21

5.0 10

±1.0

± 2.0

± 2.0 ± 4.0

– –

8.0 12

1.0

2.0

50

100

– – – –

– –

%

MΩ

µA

nA/°C

µA

nA/°C

MHz MHz

kHz kHz

Vdc

dB

Vdc

pk

mV/V

2

MOTOROLA ANALOG IC DEVICE DATA

Figure 1. Multiplier Transfer Characteristic Figure 2. Transconductance Bandwidth

10

8.0

6.0

4.0

2.0

X Y

k =

0 – 2.0 – 4.0

, OUTPUT VOL TAGE (V)

O

V

– 6.0 – 8.0

–10

–10 – 8.0 – 6.0 – 4.0 – 2.0 0 2.0 4.0 6.0 8.0 10

VX, INPUT VOLTAGE (V)

+

KXY

1

10

Figure 3. Circuit Schematic

1

MC1495

20

10

0

, GAIN (dB)

V

–10

A

VYV

–20

–30

1.0 10 100 1000

X

f, FREQUENCY (MHz)

+

2

Output (KXY)

14

–

Q8Q7Q6Q5

8

Y Input

4

5 6 3

V– 7

V

′

Y

E

s

V

′

X

+

10 V

–

Offset Adjust

See Figure 13

10 k

–

+

10 k

Q1

4.0 k

500

RY = 27 k RX = 7.5 k

V

Y

+

4

V

X

+

9 8

5.0 k

Scale Factor Adjust

Q3Q2

4.0 k

500 500

4.0 k

500

This device contains 16 active transistors.

Figure 4. Linearity (Using Null T echnique)

µ

F

0.1

56 10 11

13 k

+

–

7

12 k

0.1 µF

MC1495

12 3 13

3.0 k

1

3.0 k

2

14

10 k

NOTE: Adjust “Scale Factor Adjust” for a null in VE.This schematic for

3.0 k

2

3

33 k

Output Offset Adjust

illustrative purposes only, not specified for test conditions.

40 k

7

MC1741C

1

4

500 500

10 k

8

10 k

6

5

Q4

4.0 k

2

3

+

–

10 k

7

MC1741C

1

4

9 12

11 10 13

8

5

X Input

6

V+

+15 V

V–

–15 V

V

E

MOTOROLA ANALOG IC DEVICE DATA

3

MC1495

Figure 5. Linearity (Using X-Y Plotter Technique)

V

Offset Adjust

(See Figures 13 and 14)

To Pin

4 or 9

Y

V

Z Y X

Scale

Factor

RY = 15 k RX = 15 k

56 1011

4 9

8

MC1495

12

3

I

713

3

12 k

5.0 k

R3

0.1 µF

1

RL1 = 11 k

2

14

I

13

R13 = 13.7 k

R1

9.1 k

RL1 = 11 k

32 V

0.1 µF

+

–

Plotter

V

Y-Input

O

X–Y

Plotter

Plotter X-Input

Adjust

–15 V

Figure 6. Input and Output Current Figure 7. Input Resistance

5.6 k

+ 32 V

0.1

e

2

1.0 M

4

9 8

12

RY = 15 k RX = 15 k

56 10 11

MC1495

3713 12 k

5.0 k

0.1

µ

F

–15 V

e1 = 1.0 Vrms

20 Hz

e

1

µ

F

R

= R

inX

inY

e

1

= R

1.0 M

1.0 M e

2

e

1

–2

e

2

RY = 15 k RX = 15 k

56 10 11

4 9

I

4

MC1495

8

I

9

12

I

8

3713

I

12

12 k

I3 = 1.0 mA

Scale Factor Adjust

5.0 k

–15 V

14

0.1 µF

9.1 k

1

I

2

I

14

I13 = 1.0 mA

12 k

5.0 k

1

2

11 k

14

13.75 k

9.1 k

11 k

0.1

+ 32 V

µ

F

+ –

Figure 8. Output Resistance Figure 9. Bandwidth (RL = 11 kΩ)

RL = 11 k

e

1

1.0 Vrms 20 Hz

L

+ 32 V

e

1

e

2

56 10 11

Scale Factor Adjust

12

4

9 8

MC1495

3

12 k

5.0 k

–15 V

ein = 1.0 Vrms

e

2

µ

F

0.1

–2

e

in

50

+

1.0 V

–

MOTOROLA ANALOG IC DEVICE DATA

RY = 15 k RX = 15 k RY = 15 k RX = 15 k

56 10

4 9

8

12

3713

12 k

Scale Factor Adjust

5.0 k

MC1495

–15V

0.1

11

9.1 k

1

2

11 k

14

13.7 k

µ

F

RO = R

4

+ 32 V

9.1 k

1

11 k

2

14 13

7

R13

13.7 k

0.1

µ

F

11 k

e

o

CL < 3.0 pF

0.1

µ

F

MC1495

ein = 1.0 Vrms

e

in

K = 40

6.2 V

Figure 10. Bandwidth (RL = 50 Ω)

RY = 510 RX = 510

56 10 11

4

9

50

+

1.0 V

–

Scale Factor Adjust

MC1495

8

12

37 12 k

5.0 k

–15V

13.7k

0.1

R13

µ

F

1 2

14 13

Figure 12. Power Supply Sensitivity

+ 32 V

2.0 k

4.3 k

15 k 15 k

56 10 11

4

9

MC1495

8

12

37 13

13.7 k

0.1

µ

F

1.0 k 50

e

1

2

14

VO2V

+ 15 V

50

o

CL < 3.0 pF

+ 32 V (V+)

9.1 k

11 k

O1

0.1

Figure 11. Common Mode Gain and

Common Mode Input Swing

15 k

CMV

X

(f = 20 Hz)

+

50

–

+

50

µ

F

CMV

Y

(f = 20 Hz)

–

12 k

5.0 k

15 k 56 10 11

4 9 8

MC1495

12

3

1.0 mA

µ

F

0.1

7

–15 V

13

12 k

5.0 k

1

2

14

1.0 mA

+ 32 V

9.1 k

11 k

+

11 k

V

O

ACM = 20 log

or 20 log

0.1

V

CMV

V

O

CMV

µ

F

O

Y

X

Figure 13. Offset Adjust Circuit

+

V

R

2.0 k

0.1

Pot #1

To Pin 8

Y Offset

Adjust

µ

F

V+15 V 32 V R 10 k 22 k

10 k 10 k

10 k

Pot #2

T o Pin 12 X Offset Adjust

2.0 k

2N2905A

or Equivalent

–15 V

22 k

–15 V

(V–)

|∆ (VO1 – VO2)|

S+ =

S– =

∆

V+

|

∆

(VO1 – VO2)|

∆

V–

Figure 14. Offset Adjust Circuit (Alternate)

+

V

R

Pot #1 Pot #2

To Pin 8

Y Offset

Adjust

V+15 V 32 V R 2.0 k 5.1 k

10 k 10 k

2.0 k

–15 V

T o Pin 12 X Offset Adjust

5.1 V

–15 V

5.1 V

MOTOROLA ANALOG IC DEVICE DATA

5