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MPY100 데이터시트 PDF




Burr-Brown Corporation에서 제조한 전자 부품 MPY100은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

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부품번호 MPY100 기능
기능 MULTIPLIER-DIVIDER
제조업체 Burr-Brown Corporation
로고 Burr-Brown Corporation 로고


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MPY100 데이터시트, 핀배열, 회로
www.DataSheet4U.com
®
MPY100
MULTIPLIER-DIVIDER
FEATURES
q LOW COST
q DIFFERENTIAL INPUT
q ACCURACY 100% TESTED AND
GUARANTEED
q NO EXTERNAL TRIMMING REQUIRED
q LOW NOISE: 90µVrms, 10Hz to 10kHz
q HIGHLY RELIABLE ONE-CHIP DESIGN
q DIP OR TO-100 TYPE PACKAGE
q WIDE TEMPERATURE OPERATION
APPLICATIONS
q MULTIPLICATION
q DIVISION
q SQUARING
q SQUARE ROOT
q LINEARIZATION
q POWER COMPUTATION
q ANALOG SIGNAL PROCESSING
q ALGEBRAIC COMPUTATION
q TRUE RMS-TO-DC CONVERSION
DESCRIPTION
The MPY100 multiplier-divider is a low cost preci-
sion device designed for general purpose application.
In addition to four-quadrant multiplication, it also
performs analog square root and division without the
bother of external amplifiers or potentiometers. Laser-
trimmed one-chip design offers the most in highly
reliable operation with guaranteed accuracies.
Because of the internal reference and pretrimmed
accuracies the MPY100 does not have the restrictions
of other low cost multipliers. It is available in both
TO-100 and DIP ceramic packages.
X1
V-I
X2
Y1
V-I
Y2
Multiplier Core
Out
A
Z1
Z2
www.DataSheet4U.com
V-I
Attenuator
High Gain
Output Amplifier
International Airport Industrial Park • Mailing Address: PO Box 11400 • Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd. • Tucson, AZ 85706
Tel: (520) 746-1111 • Twx: 910-952-1111 • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
©1987 Burr-Brown Corporation
PDS-412D
Printed in U.S.A. March, 1995




MPY100 pdf, 반도체, 판매, 대치품
www.DataSheet4U.com
SIMPLIFIED SCHEMATIC
+VCC
A
Z2 Out
X1
25k
–VCC
X2 Y2
25k25k
500µA
25k
Y1
3.8kZ1
25k
25k
25k25k
500µA
VOS
500µA
CONNECTION DIAGRAM
+15VDC
X1
X2
Y1
Y2 VOS
(1)
100k
+VS Z1
Out
–VS Z2
VO
(X1 – X2)(Y1 – Y2)
10
NOTE: (1) Optional component.
–15VDC
DICE INFORMATION
PAD
1
2
3
4
5
6
7
8
9
10
FUNCTION
Y2
VOS
Z2
X2
X1
VO
Z1
+V
–V
Y1
Substrate Bias: –VCC
www.DataSheet4U.com
MPY100 DIE TOPOGRAPHY
MECHANICAL INFORMATION
Die Size
Die Thickness
Min. Pad Size
Backing
MILS (0.001")
107 x 93 ±5
20 ±3
4x4
MILLIMETERS
2.72 x 2.36 ±0.13
0.51 ±0.08
0.10 x 0.10
Gold
®
MPY100
4

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MPY100 전자부품, 판매, 대치품
www.DataSheet4U.com
THEORY OF OPERATION
The MPY100 is a variable transconductance multiplier con-
sisting of three differential voltage-to-current converters, a
multiplier core and an output differential amplifier as illus-
trated in Figure 1.
The basic principle of the transconductance multiplier can
be demonstrated by the differential stage in Figure 2.
For small values of the input voltage, V1, that are much
smaller than VT, the transistor’s thermal voltage, the differ-
ential output voltage, VO, is:
VO = gm RLV1
The transconductance gm of the stage is given by:
gm = IE/VT
and is modulated by the voltage, V2, to give
gm V2/VTRE
Substituting this into the original equation yields the overall
transfer function
VO = gmRLV1 = V1V2 (RL/VTRE)
which shows the output voltage to be the product of the two
input voltages, V1 and V2.
Variations in IE due to V2 cause a large common-mode
voltage swing in the circuit. The errors associated with this
common-mode voltage can be eliminated by using two
differential stages in parallel and cross-coupling their out-
puts as shown in Figure 3.
+VS
X1
V-I
X2
Y1
V-I
Y2
Stable
Reference
and Bias
+VS
–VS
VO = A
(X1 – X2)(Y1 – Y2)
10
– (Z1 – Z2)
Transfer Function
Multiplier
Core
Out
A
Z1
V-I
Z2
Attenuator
High Gain
Output Amplifier
FIGURE 1. MPY100 Functional Block Diagram.
I1 RL
+VCC
RL I2
– VO +
+ Q1
V1
Q2
Q3
+ RE IE
V2
wwwF.DIGaUtRaES2h. MBeaueslitctip4DliUiefrf..ecreonmtial Stage as a Transconductance
+
V1
+
V2
RL
I1
Q1
+–
VO
I2
Q2
I3
Q3
RL
I4
Q4
Q5
RE
Q6
RE
IT
–VCC
FIGURE 3. Cross-Coupled Differential Stages as a Variable-
Transconductance Multiplier.
An analysis of the circuit in Figure 3 shows it to have the
same overall transfer function as before:
VO = V1V2 (RL/VTRE).
For input voltages larger than VT, the voltage-to-current
transfer characteristics of the differential pair Q1, Q2 or Q3
and Q4 are no longer linear. Instead, their collector currents
are related to the applied voltage V1
I1 =
I2
I3
=e
V1
VT
I4
The resultant nonlinearity can be overcome by developing
V1 logarithmically to exactly cancel the exponential rela-
tionship just derived. This is done by diodes D1 and D2 in
Figure 4.
The emitter degeneration resistors, RX and RY, in Figure 4,
provide a linear conversion of the input voltages to differen-
tial current, IX and IY, where:
®
7 MPY100

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관련 데이터시트

부품번호상세설명 및 기능제조사
MPY100

Multiplier/Divider

Texas Instruments
Texas Instruments
MPY100

MULTIPLIER-DIVIDER

Burr-Brown Corporation
Burr-Brown Corporation

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