®
MPY534
Precision
ANALOG MULTIPLIER
FEATURES
q
±
0.25% max 4-QUADRANT ACCURACY
q
WIDE BANDWIDTH: 1MHz min,
3MHz typ
q
ADJUSTABLE SCALE FACTOR
q
STABLE AND RELIABLE MONOLITHIC
CONSTRUCTION
q
LOW COST
DESCRIPTION
The MPY534 is a high accuracy, general purpose
four-quadrant analog multiplier. Its accurately laser
trimmed transfer characteristics make it easy to use in
a wide variety of applications with a minimum of
external parts and trimming circuitry. Its differential
X, Y and Z inputs allow configuration as multiplier,
squarer, divider, square-rooter and other functions
while maintaining high accuracy.
The wide bandwidth of this new design allows accu-
rate signal processing at higher frequencies suitable
for video signal processing. It is capable of performing
IF and RF frequency mixing, modulation and demodu-
lation with excellent carrier rejection and very simple
feedthrough adjustment.
An accurate internal voltage reference provides pre-
cise setting of the scale factor. The differential Z input
allows user selected scale factors from 0.1 to 10 using
external feedback resistors.
APPLICATIONS
q
PRECISION ANALOG SIGNAL
PROCESSING
q
VIDEO SIGNAL PROCESSING
q
VOLTAGE CONTROLLED FILTERS AND
OSCILLATORS
q
MODULATION AND DEMODULATION
q
RATIO AND PERCENTAGE COMPUTATION
Voltage
Reference
and Bias
+V
S
–V
S
Transfer Function
SF
X
1
V-I
X
2
Multiplier
Core
Y
1
V-I
Y
2
V
OUT
= A
(X
1
– X
2
) (Y
1
– Y
2
)
SF
– (Z
1
– Z
2
)
A
Precision
Output
Op Amp
V
OUT
Z
1
V-I
Z
2
0.75 Attenuator
International Airport Industrial Park • Mailing Address: PO Box 11400
Tel: (520) 746-1111 • Twx: 910-952-1111 • Cable: BBRCORP •
©
• Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd. • Tucson, AZ 85706
Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
PDS-614D
Printed in U.S.A. October, 1993
1985 Burr-Brown Corporation
SPECIFICATIONS
ELECTRICAL
T
A
= +25°C and V
S
=
±15VDC,
unless otherwise specified.
MPY534J
PARAMETER
MULTIPLIER
PERFORMANCE
Transfer Function
Total Error
(1)
(–10V
≤
X, Y
≤
+10V)
T
A
= min to max
Total Error vs Temperature
Scale Factor Error
(SF = 10.000V Nominal)
(2)
Temperature Coefficient of
Scaling Voltage
Supply Rejection (±15V
±1V)
Nonlinearity:
X (X = 20Vp-p, Y = 10V)
Y (Y = 20Vp-p, X = 10V)
Feedthrough
(3)
X (Y Nulled, Y = 20Vp-p
50Hz)
Y (X Nulled, Y = 20Vp-p
50Hz)
Output Offset Voltage
Output Offset Voltage Drift
DYNAMICS
Small Signal BW,
(V
OUT
= 0.1Vrms)
1% Amplitude Error
(C
LOAD
= 1000pF)
Slew Rate (V
OUT
= 20Vp-p)
Settling Time
(to 1%,
∆V
OUT
= 20V)
NOISE
Noise Spectral Density:
SF = 10V
Wideband Noise:
f = 10Hz to 5MHz
f = 10Hz to 10kHz
OUTPUT
Output Voltage Swing
Output Impedance (f
≤
1kHz)
Output Short Circuit Current
(R
L
= 0, T
A
= min to max)
Amplifier Open Loop Gain
(f = 50Hz)
INPUT AMPLIFIERS
(X, Y and Z)
Input Voltage Range
Differential V
IN
(V
CM
= 0)
Common-Mode V
IN
(V
DIFF
= 0) (see Typical
Performance Curves)
Offset Voltage X, Y
Offset Voltage Drift X, Y
Offset Voltage Z
Offset Voltage Drift Z
CMRR
Bias Current
Offset Current
Differential Resistance
DIVIDER PERFORMANCE
Transfer Function (X
1
> X
2
)
Total Error
(1)
(X = 10V, –10V
≤
Z
≤
+10V)
(X – 1V, –1V
≤
Z
≤+1V)
(0.1V
≤
X
≤
10V,
–10V
≤
Z
≤
10V)
®
MPY534K
MAX
MIN
TYP
MAX
MIN
MPY534L
TYP
MAX
MIN
MPY534S
TYP
MAX
MIN
MPY534T
TYP
MAX
UNITS
MIN
TYP
*
(X
1
– X
2
)(Y
1
– Y
2
)
10V
±1.0
+ Z
2
*
*
*
±1.5
±0.022
±0.25
±0.02
*
±0.4
*
±1.0
±0.015
±0.1
±0.01
±0.01
±0.2
±0.01
±0.5
±0.5
±0.008
*
±0.005
*
±0.25
±1.0
±2.0
±0.02
±0.25
±0.02
*
±0.4
*
*
±0.005
*
*
*
*
±1.0
±0.01
%
%
%/°C
%
%/°C
%
±0.3
±0.1
±0.10 ±0.12
±0.005
*
*
*
%
%
±0.3
*
±5
200
±0.15
±0.01
±2
100
±0.3
±0.1
±15
±0.05
±0.003
*
*
±0.12
*
±10
±0.3
*
±5
*
*
*
*
*
*
300
%
%
mV
µV/°C
±30
±30
500
*
*
*
*
*
1
3
50
20
2
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
MHz
kHz
V/µs
µs
*
*
*
*
*
*
*
±11
0.8
1
90
*
0.1
30
70
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
µV/√Hz
mVrms
µVrms
V
Ω
mA
dB
*
*
*
*
*
±12
±10
*
*
*
*
*
*
V
V
60
±5
100
±5
200
80
*
*
*
*
±20
±30
70
*
±2
50
±2
100
90
0.8
0.1
10
(Z
2
– Z
1
)
(X
1
– X
2
)
±0.35
±1.0
±1.0
±10
±15
*
2.0
*
*
*
*
*
*
0.05
*
*
±10
60
*
0.2
±5
100
±5
80
*
*
*
±20
±30
500
*
*
2.0
*
*
*
*
*
*
*
*
*
300
*
2.0
mV
µV/°C
mV
µV/°C
dB
µA
µA
MΩ
10V
+ Y
1
±0.75
±2.0
±2.5
±0.2
±0.8
±0.8
±0.75
±2.0
±2.5
*
*
*
%
%
%
MPY534
2
SPECIFICATIONS
ELECTRICAL
(CONT)
T
A
= +25°C and V
S
=
±15VDC,
unless otherwise specified.
MPY534J
PARAMETER
SQUARE PERFORMANCE
Transfer Function
Total Error (–10V
≤
X
≤
10V)
SQUARE-ROOTER
PERFORMANCE
Transfer Function (Z
1
≤
Z
2
)
Total Error
(1)
(1V
≤
Z
≤
10V)
POWER SUPPLY
Supply Voltage:
Rated Performance
Operating
Supply Current, Quiescent
TEMPERATURE RANGE
Operating
Storage
MIN
TYP
*
0.6
MAX
MIN
MPY534K
TYP
MAX
MIN
MPY534L
TYP
*
±0.2
MAX
MIN
MPY534S
TYP
*
±0.6
MAX
MIN
MPY534T
TYP
*
*
%
MAX
UNITS
(X
1
– X
2
)
2
10V
±0.3
+ Z
2
*
±1.0
√10V(Z
2
– Z
1
) +
X
2
±0.5
*
±0.25
*
±1.0
*
±0.5
%
*
*
*
*
*
*
*
*
*
±8
±15
4
*
±18
6
+70
+150
*
*
*
*
*
*
*
*
*
*
*
–55
*
±20
*
+125
*
*
*
*
–55
*
±20
*
+125
*
VDC
VDC
mA
°C
°C
0
–65
*Specifications same as for MPY534K.
NOTES: (1) Figures given are percent of full scale,
±10V
(i.e., 0.01% = 1mV). (2) May be reduced to 3V using external resistor between –Vs and SF. (3) Irreducible
component due to nonlinearity; excludes effect of offsets.
PIN CONFIGURATIONS
Top View
X
1
X
2
SF
Y
1
2
3
Y
2
4
5
–V
S
6
10
1
9
+V
S
8
7
Z
2
Out
Z
1
TO-100
Top View
DIP
X
1
X
2
NC
SF
NC
Y
1
Y
2
1
2
3
4
5
6
7
14 +V
S
13 NC
12 Out
11 Z
1
10 Z
2
9
8
NC
–V
S
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Power Supply Voltage
Power Dissipation
Output Short-Circuit to Ground
Input Voltage (all X, Y and Z)
Operating Temperature Range
Storage Temperature Range
Lead Temperature (soldering, 10s)
*Specification same as for MPY534K.
MPY534J, K, L
MPY534S, T
±18
±20
500mW
*
Indefinite
*
±V
S
*
0°C to +70°C
–55°C to +125°C
–65°C to +150°C
*
+300°C
*
ORDERING INFORMATION
MODEL
MPY534JD
MPY534JH
MPY534KD
MPY534KH
MPY534LD
MPY534LH
MPY534SD
MPY534SH
MPY534TD
MPY534TH
PACKAGE
Ceramic DIP
Metal TO-100
Ceramic DIP
Metal TO-100
Ceramic DIP
Metal TO-100
Ceramic DIP
Metal TO-100
Ceramic DIP
Metal TO-100
TEMPERATURE RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
–55°C to +125°C
–55°C to +125°C
–55°C to +125°C
–55°C to +125°C
PACKAGE INFORMATION
MODEL
MPY534JD
MPY534JH
MPY534KD
MPY534KH
MPY534LD
MPY534LH
MPY534SD
MPY534SH
MPY534TD
MPY534TH
PACKAGE
Ceramic DIP
Metal TO-100
Ceramic DIP
Metal TO-100
Ceramic DIP
Metal TO-100
Ceramic DIP
Metal TO-100
Ceramic DIP
Metal TO-100
PACKAGE DRAWING
NUMBER
(1)
169
007
169
007
169
007
169
007
169
007
NOTE: (1) For detailed drawing and dimension table, please see end of data
sheet, or Appendix D of Burr-Brown IC Data Book.
®
3
MPY534
DICE INFORMATION
PAD
1
2
3
4
5
6
7
8
9
10
FUNCTION
Y
1
Y
2
–V
S
Z
2
Z
1
Output
+V
S
X
1
X
2
SF (Scale Factor)
Substrate Bias:
The back of the die should
not be used for the –V
S
connection.
NC = No Connection.
MECHANICAL INFORMATION
MILS (0.001")
Die Size
Die Thickness
Min. Pad Size
Backing
100 x 92
±5
20
±3
4x4
MILLIMETERS
2.54 x 2.34
±0.13
0.51
±0.08
0.10 x 0.10
Gold
MPY534 DIE TOPOGRAPHY
TYPICAL PERFORMANCE CURVES
T
A
= +25°C, V
S
=
±15VDC,
unless otherwise noted.
AC FEEDTHROUGH vs FREQUENCY
1k
800
700
BIAS CURRENTS vs TEMPERATURE
(X,Y or Z Inputs)
Peak-to-Peak Feedthrough (mV)
100
Bias Current (nA)
600
500
Scaling Voltage = 10V
400
300
Scaling Voltage = 3V
200
100
10
X Feedthrough
1
Y Feedthrough
0.1
10
100
1k
10k
100k
1M
10M
Frequency (Hz)
0
–60 –40 –20
0
20
40
60
80
100 120 140
Temperature (°C)
INPUT DIFFERENTIAL-MODE/COMMON-MODE VOLTAGE
COMMON-MODE REJECTION RATIO vs FREQUENCY
90
80
70
CMRR (dB)
10
V
CM
Typical for all inputs
–12
–10
–5
5
60
50
40
30
20
10
0
100
1k
10k
Frequency (Hz)
®
Specified
Accuracy
5
V
S
= ±15V
10
12
V
DIFF
–5
100k
1M
–10
Functional
Derated Accuracy
MPY534
4
TYPICAL PERFORMANCE CURVES
(CONT)
T
A
= +25°C,
±V
CC
= 15VDC, unless otherwise noted.
NOISE SPECTRAL DENSITY
vs FREQUENCY
1.5
FREQUENCY RESPONSE
vs DIVIDER DENOMINATOR INPUT VOLTAGE
50
40
Output, V
O
/ V
Z
(dB)
Noise Spectral Density (µV/√Hz)
1.25
30
20
10
0
–10
V
X
= 100mVDC
V
Z
= 10mVrms
V
X
= 1VDC
V
Z
= 100mVrms
1
0.75
V
X
= 10VDC
V
Z
= 1Vrms
0.5
10
100
1k
Frequency (Hz)
10k
100k
–20
1k
10k
100k
Frequency (Hz)
1M
10M
INPUT/OUTPUT SIGNAL RANGE
vs SUPPLY VOLTAGES
14
Peak Positive or Negative Signal (V)
10
FREQUENCY RESPONSE AS A MULTIPLIER
0dB = 0.1Vrms; R
L
= 2kΩ
Output Response (dB)
12
Output, R
L
≥
2kΩ
10
All Inputs, SF = 10V
8
C
L
= 1000pF
0
C
L
= 0pF
–10
C
L
≤
1000pF
C
F
= 0pF
C
L
≤
1000pF
C
F
≤
200pF
6
4
8
10
12
14
16
18
20
Positive or Negative Supply (V)
–20
–30
10k
100k
With X10
Feedback
Attenuator
1M
Normal
Connection
10M
Frequency (Hz)
THEORY OF OPERATION
The transfer function for the MPY534 is:
V
OUT
= A
where:
A = Open-loop gain of the output amplifier
(typically 85dB at DC).
SF = Scale Factor. Laser-trimmed to 10V but
adjustable over a 3V to 10V range using
external resistor.
X, Y, A are input voltages. Full-scale input voltage
is equal to the selected SF. (Max input voltage =
±1.25
SF.)
An intuitive understanding of transfer function can be gained
by analogy to an op amp. By assuming that the open-loop
gain, A, of the output amplifier is infinite, inspection of the
transfer function reveals that any V
OUT
can be created with
an infinitesimally small quantity within the brackets. Then,
5
(X
1
– X
2
) (Y
1
– Y
2
)
SF
– (Z
1
– Z
2
)
an application circuit can be analyzed by assigning circuit
voltages for all X, Y and Z inputs and setting the bracketed
quantity equal to zero. For example, the basic multiplier
connection in Figure 1, Z
1
= V
OUT
and Z
2
= 0. The quantity
within the brackets then reduces to:
(X
1
– X
2
) (Y
1
– Y
2
)
SF
– (V
OUT
– 0) = 0
This approach leads to a simple relationship which can be
solved for V
OUT
.
The scale factor is accurately factory-adjusted to 10V and is
typically accurate to within 0.1% or less. The scale factor
may be adjusted by connecting a resistor or potentiometer
between pin SF and the –V
S
power supply. The value of the
external resistor can be approximated by:
R
SF
= 5.4kΩ
SF
10 – SF
®
MPY534
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