Order this document by MC1495/D
LINEAR
FOUR-QUADRANT
MULTIPLIER
SEMICONDUCTOR
TECHNICAL DATA
MC1495
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
SO14
Plastic DIP
Plastic DIP
TA = 40
°
to +125
°
C
1
MOTOROLA ANALOG IC DEVICE DATA
Wideband Linear
Four Quadrant Multiplier
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
(TA = + 25
°
C, unless otherwise noted.)
Rating
Symbol
Value
Unit
Applied Voltage
(V2V1, V14V1, V1V9, V1V12, V1V4,
V1V8, V12V7, V9V7, V8V7, V4V7)
V
30
Vdc
Differential Input Signal
V12V9
V4V8
±
(6+I13 RX)
±
(6+I3 RY)
Vdc
Maximum Bias Current
I3
I13
10
10
mA
Operating Temperature Range
MC1495
MC1495B
TA
0 to +70
40 to +125
°
C
Storage Temperature Range
Tstg
65 to +150
°
C
©
Motorola, Inc. 1996
Rev 0
MC1495
2
MOTOROLA ANALOG IC DEVICE DATA
ELECTRICAL CHARACTERISTICS
(+V = + 32 V , V = 15 V, TA = + 25
°
C, I3 = I13 = 1.0 mA, RX = RY = 15 k
, RL = 11 k
, 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 = TLow to THigh
10 < VX < +10 (VY =
±
10 V)
10 < VY < +10 (VX =
±
10 V)
5
ERX
ERY
ERX
ERY
±
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 = TLow to THigh
5
ESQ
±
0.75
±
1.0
%
Scale Factor (Adjustable)
2RL
K =
13 RX RY
K
0.1
Input Resistance (f = 20 Hz)
7
RinX
RinY
30
20
M
Differential Output Resistance (f = 20 Hz)
8
RO
300
k
Input Bias Current
2
(I9 + I12)
2
Ibx =
, Iby =
(I4 + I8)
TA = + 25
°
C
TA = TLow to THigh
6
Ibx, Iby
2.0
2.0
8.0
12
µ
A
Input Offset Current
|I9 I12|
TA = + 25
°
C
|I4 I8|
TA = TLow to THigh
6
|Iiox|, |Iioy|
0.4
0.4
1.0
2.0
µ
A
Average Temperature Coefficient of Input Offset Current
TA = TLow to THigh
6
|TClio|
2.5
nA/
°
C
Output Offset Current
TA = + 25
°
C
|I14 I2|
TA = TLow to THigh
6
|IOO|
10
20
50
100
µ
A
Average Temperature Coefficient of Output Offset Current
TA = TLow to THigh
6
|TCIOO|
20
nA/
°
C
Frequency Response
3.0 dB Bandwidth, RL = 11 k
3.0 dB Bandwidth, RL = 50
(Transconductance Bandwidth)
3
°
Relative Phase Shift Between VX and VY
1% Absolute Error Due to Input-Output Phase Shift
9,10
BW(3dB)
TBW(3dB)
f
f
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 = TLow to THigh
11
ACM
50
40
60
50
dB
Common Mode Quiescent
Output Voltage
12
VO1
VO2
21
21
Vdc
Differential Output Voltage Swing Capability
9
VO
±
14
Vpk
Power Supply Sensitivity
12
S+
S
5.0
10
mV/V
Power Supply Current
12
I7
6.0
7.0
mA
DC Power Dissipation
12
PD
135
170
mW
NOTES: 1. THigh = +70
°
C for MC1495
TLow = 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
T
AGE
(V)
O
V
+
X
Y
KXY
20
10
0
10
20
30
1.0
10
100
1000
VY VX
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
VE
V
Y
V
X
10 k
10 k
10 k
VX
VY
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
5
6
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
Es
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
3.0 k
0.1
µ
F
10 k
10 k
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
Q8
Q7
Q6
Q5
+
+
X Input
Q3
Q2
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
VY
VZ
Y
X
Offset Adjust
(See Figures 13 and 14)
5
6
10
11
1
2
14
RL1 = 11 k
Plotter
Y-Input
XY
Plotter
I13
I3
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
µ
F
0.1
µ
F
Plotter
X-Input
VO
7
13
Figure 6. Input and Output Current
Figure 7. Input Resistance
Figure 8. Output Resistance
Figure 9. Bandwidth (RL = 11 k
)
RY = 15 k RX = 15 k
4
9
8
12
I4
I9
I8
I12 3
7
13
12 k
5 6
10
11
1
2
14
I14
I2
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
5 6
10
11
4
9
8
12
3
7 13
1.0 M
1.0 M
e1
e1
1.0 M
1.0 M
e2
e2
15 V
+
9.1 k
11 k
11 k
13.75 k
e1 = 1.0 Vrms
20 Hz
RinX = RinY = R
e1
e2
2
1
2
14
MC1495
4
9
8
12
3
7
13
13.7 k
5 6
10
111
2
14
RL = 11 k
9.1 k
5 6
10
11
4
9
8
12
3
7
13
9.1 k
11 k
11 k
1
2
14
0.1
µ
F
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
e1
1.0 Vrms
20 Hz
0.1
µ
F
12 k
5.0 k
Scale
Factor
Adjust
+ 32 V
0.1
µ
F
eo
0.1
µ
F
12 k
5.0 k
Scale
Factor
Adjust
50
+
1.0 V
ein
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
e2
RO = RL
2
e1
e2
MC1495
MC1495
MC1495
MC1495
5
MOTOROLA ANALOG IC DEVICE DATA
or 20 log
CMVX
VO
Figure 10. Bandwidth (RL = 50
)
Figure 11. Common Mode Gain and
Common Mode Input Swing
ACM = 20 log
CMVY
VO
5 6
10
11
4
9
8
12
3
7
13
1.0 k
50
1
2
14
5 6
10
11
4
9
12
3
7
13
9.1 k
11 k
11 k
1
2
14
8
ein = 1.0 Vrms
50
ein
+
1.0 V
15 k
RY = 510 RX = 510
+ 15 V
50
R13
13.7k
0.1
µ
F
eo
CL < 3.0 pF
0.1
µ
F
12 k
5.0 k
Scale
Factor
Adjust
K = 40
+ 32 V
0.1
µ
F
VO
15 k
1.0 mA
15V
15 V
12 k
5.0 k
0.1
µ
F
5.0 k
12 k
50
50
+
+
CMVX
(f = 20 Hz)
CMVY
(f = 20 Hz)
+
1.0 mA
MC1495
MC1495
Figure 12. Power Supply Sensitivity
Figure 13. Offset Adjust Circuit
5
6
10
11
4
9
8
12
3
7
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
VO2 VO1
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
5.1 V
V+
R
10 k
Pot #1
To Pin 8
Y Offset
Adjust
Pot #2
To 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
To Pin 8
Y Offset
Adjust
To Pin 12
X Offset
Adjust
15 V
10 k
10 k
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