MOTOROLA MC1495DR2 Datasheet

Order this document by MC1495/D

LINEAR

FOUR-QUADRANT

MUL TIPLIER

SEMICONDUCTOR

TECHNICAL DATA



P SUFFIX

PLASTIC PACKAGE

CASE 646

D SUFFIX

PLASTIC PACKAGE

CASE 751A

(SO-14)

1

14

1

14

ORDERING INFORMATION

Package

Tested Operating

Temperature Range

Device

MC1495D

TA = 0° to + 70°C

MC1495P MC1495BP

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

1

MOTOROLA ANALOG IC DEVICE DATA

   

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.

MAXIMUM RATINGS (T

A

= + 25°C, unless otherwise noted.)

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)

∆V 30 Vdc

Differential Input Signal V12–V

9

V4–V

8

± (6+I13 RX)

± (6+I3 RY)

Vdc

Maximum Bias Current I

3

I

13

10 10

mA

Operating Temperature Range

MC1495

MC1495B

T

A

0 to +70

– 40 to +125

°C

Storage Temperature Range T

stg

– 65 to +150 °C

 Motorola, Inc. 1996 Rev 0

MC1495

2

MOTOROLA ANALOG IC DEVICE DATA

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

A

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

otherwise noted.)

Characteristics

Figure Symbol Min Typ Max Unit

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

Low

to T

High

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

5

E

RX

E

RY

E

RX

E

RY

– –

±1.0

± 2.0

±1.5

± 3.0

±1.0

± 2.0

± 2.0 ± 4.0

%

Square Mode Error (Accuracy in percent of full scale after

Offset and Scale Factor adjustment)

TA = + 25°C TA = T

Low

to T

High

5 E

SQ

– –

± 0.75

±1.0

– –

%

Scale Factor (Adjustable)

2R

L

K =

13 RX R

Y

– K – 0.1 –

Input Resistance (f = 20 Hz) 7 R

inX

R

inY

– –

30 20

– –

MΩ

Differential Output Resistance (f = 20 Hz) 8 R

O

– 300 – kΩ

Input Bias Current

2

(I9 + I12)

2

Ibx =

, Iby =

(I4 + I8)

TA = + 25°C

TA = T

Low

to T

High

6

I

bx, Iby

– –

2.0

8.0 12

µA

Input Offset Current

|I9 – I12|T

A

= + 25°C

|I4 – I8|T

A

= T

Low

to T

High

6

|I

iox

|, |I

ioy

| –

–

0.4

1.0

2.0

µA

Average Temperature Coefficient of Input Offset Current

TA = T

Low

to T

High

6 |TC

lio

|

– 2.5 –

nA/°C

Output Offset Current TA = + 25°C

|I14 – I2|T

A

= T

Low

to T

High

6 |IOO|

–

10 20

50

100

µA

Average Temperature Coefficient of Output Offset Current

TA = T

Low

to T

High

6 |TC

IOO

|

– 20 –

nA/°C

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

Y

1% Absolute Error Due to Input-Output Phase Shift

9,10

BW

(3dB)

T

BW(3dB)

fφ fθ

– – – –

3.0 80

750

30

– – – –

MHz MHz

kHz kHz

Common Mode Input Swing

(Either Input)

11 CMV

±10.5 ±12 –

Vdc

Common Mode Gain TA = + 25°C

(Either Input) TA = T

Low

to T

High

11 A

CM

–50 –40

–60 –50

– –

dB

Common Mode Quiescent

Output Voltage

12 V

O1

V

O2

– –

21 21

– –

Vdc

Differential Output Voltage Swing Capability 9 V

O

– ±14 – V

pk

Power Supply Sensitivity 12 S

+

S

–

– –

5.0 10

– –

mV/V

Power Supply Current 12 I

7

– 6.0 7.0 mA

DC Power Dissipation 12 P

D

– 135 170 mW

NOTES: 1.T

High

= +70°C for MC1495 T

Low

= 0°C for MC1495

= +125°C for MC1495B = –40°C for MC1495B

MC1495

3

MOTOROLA ANALOG IC DEVICE DATA

k =

1

10

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

VX, INPUT VOLTAGE (V)

–10

– 8.0

– 4.0

– 2.0

0

2.0

– 6.0

4.0

6.0

8.0

10

, OUTPUT VOL TAGE (V)

O

V

+

X Y

KXY

20

10

0

–10

–20

–30

1.0 10 100 1000

VYV

X

f, FREQUENCY (MHz)

, GAIN (dB)

V

A

Figure 1. Multiplier Transfer Characteristic Figure 2. Transconductance Bandwidth

Figure 3. Circuit Schematic

Figure 4. Linearity (Using Null Technique)

+

–

0.1

µ

F

V

E

V

′

Y

V

′

X

10 k

V

X

V

Y

3.0 k 40 k

10 k

2

3

1

2

14

12 3 13

13 k

12 k

5.0 k

10 V

9 8

56 10 11

MC1495

Offset Adjust

See Figure 13

Scale Factor Adjust

7

–

+

33 k

Output Offset Adjust

7

8

5

1

4

6

2

3

7

8

6

4

1

5

E

s

MC1741C

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

illustrative purposes only, not specified for test conditions.

10 k

3.0 k

0.1 µF

10 k

4

RY = 27 k RX = 7.5 k

MC1741C

V–

–15 V

V+

+15 V

1

8 4

5 6 3

V– 7

500

500 500

500

500 500

2 14

9 12

11 10 13

4.0 k

Q4

Q8Q7Q6Q5

+ –

+

–

X Input

Q3Q2

Q1

4.0 k

Y Input

+

–

4.0 k

Output (KXY)

4.0 k

This device contains 16 active transistors.

MC1495

4

MOTOROLA ANALOG IC DEVICE DATA

RL1 = 11 k

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

RY = 15 k RX = 15 k

To Pin

4 or 9

V

Y

V

Z Y X

Offset Adjust

(See Figures 13 and 14)

56 1011

1

2

14

RL1 = 11 k

Plotter

Y-Input

X–Y

Plotter

I

13

I

3

R3

+

–

32 V

R1

9.1 k

R13 = 13.7 k

–15 V

4 9

8

12

3

12 k

5.0 k

Scale

Factor

Adjust

MC1495

0.1 µF

Plotter X-Input

V

O

713

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

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

RY = 15 k RX = 15 k

4 9

8

12

I

4

I

9

I

8

I

12

3713

12 k

56 10 11

1

2

14

I

14

I

2

5.6 k

9.1 k

+ 32 V

0.1

µ

F

I13 = 1.0 mA

5.0 k

–15 V

12 k

5.0 k

I3 = 1.0 mA

Scale Factor Adjust

56 10 11

4

9 8

12

3713

1.0 M

e

1

e

1

1.0 M

e

2

e

2

–15 V

+ –

9.1 k

11 k

13.75 k

e1 = 1.0 Vrms

20 Hz

R

inX

= R

inY

= R

e

1

e

2

–2

1

2

14

MC1495

4 9

8

12

3713

13.7 k

56 10

11

1

2

14

RL = 11 k

9.1 k

56 10 11

4

9 8

12

3

7

13

9.1 k 11 k

11 k

1 2

14

0.1 µF

RY = 15 k RX = 15 k

+ 32 V

0.1

µ

F

0.1

µ

F

12 k

5.0 k

+ 32 V

0.1

µ

F

11 k

e

1

1.0 Vrms 20 Hz

0.1

µ

F

12 k

5.0 k

Scale Factor Adjust

+ 32 V

0.1

µ

F

e

o

0.1

µ

F

12 k

5.0 k

Scale Factor Adjust

50

+ –

1.0 V

e

in

ein = 1.0 Vrms

R13

13.7 k CL < 3.0 pF

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

–15V

–15 V

e

2

RO = R

L

–2

e

1

e

2

MC1495

5

MOTOROLA ANALOG IC DEVICE DATA

or 20 log

CMV

X

V

O

Figure 10. Bandwidth (RL = 50 Ω)

Figure 11. Common Mode Gain and

Common Mode Input Swing

ACM = 20 log

CMV

Y

V

O

56 10 11

4

9 8

12

37

13

1.0 k 50

1 2

14

56 10 11

4 9

12

3

7

13

9.1 k

11 k

1

2

14

8

ein = 1.0 Vrms

50

e

in

+

–

1.0 V

15 k

RY = 510 RX = 510

+ 15 V

50

R13

13.7k

0.1

µ

F

e

o

CL < 3.0 pF

0.1

µ

F

12 k

5.0 k

Scale Factor Adjust

K = 40

+ 32 V

0.1

µ

F

V

O

15 k

1.0 mA

–15V

–15 V

12 k

5.0 k

0.1

µ

F

5.0 k

12 k

50

+

–

+

–

CMV

X

(f = 20 Hz)

CMV

Y

(f = 20 Hz)

+

1.0 mA

MC1495

Figure 12. Power Supply Sensitivity

Figure 13. Offset Adjust Circuit

56 10 11

4

9

8

12

37 13

–15 V

(V–)

0.1

µ

F

9.1 k

11 k

13.7 k

15 k 15 k

+ 32 V (V+)

1

2

14

VO2V

O1

2.0 k

4.3 k

22 k

2N2905A

or Equivalent

+ 32 V

6.2 V

S+ =

|∆ (VO1 – VO2)|

∆

V+

S– =

|

∆

(VO1 – VO2)|

∆

V–

V

+

R

2.0 k

Pot #1 Pot #2

V+15 V 32 V R 2.0 k 5.1 k

Figure 14. Offset Adjust Circuit (Alternate)

5.1 V

V

+

R

10 k

Pot #1

T o Pin 8

Y Offset

Adjust

Pot #2

T o Pin 12 X Offset Adjust

–15 V

V+15 V 32 V R 10 k 22 k

2.0 k

MC1495

11 k

0.1

µ

F

–15 V

2.0 k

10 k 10 k

T o Pin 8

Y Offset

Adjust

T o Pin 12 X Offset Adjust

–15 V

10 k 10 k

MOTOROLA MC1495DR2 Datasheet

Specifications and Main Features

Frequently Asked Questions

User Manual