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參數(shù)資料
| 型號(hào)： | MPY634KP |
| 英文描述： | Wide Bandwidth PRECISION ANALOG MULTIPLIER |
| 中文描述： | 寬帶精密模擬乘法器 |
| 文件頁(yè)數(shù)： | 7/8頁(yè) |
| 文件大?。?/td> | 122K |
| 代理商： | MPY634KP |
MPY634
7
respectively. Feedback is applied to the Y
2
input, and Y
1
is
normally referenced to output ground. Alternatively, as the
transfer function implies, an input applied to Y
1
can be
summed directly into V
OUT
. Since the feedback connection
is made to a multiplying input, the effective gain of the
output op amp varies as a function of the denominator input
voltage. Therefore, the bandwidth of the divider function is
proportional to the denominator voltage (see Typical Perfor-
mance Curves).
FIGURE 5. Square-Rooter Connection.
APPLICATIONS
FIGURE 6. Phase Detector.
FIGURE 7. Voltage-Controlled Amplifier.
MPY634
X
1
+V
S
X
2
Out
SF
Z
1
Y
1
Z
2
Y
2
–V
S
–15V
+15V
V
O
= (AB/20) cos
0.1μF
R
X
A sin (2
π
10MHz t)
B sin (2
π
10MHz t + )
Multiplier connection followed by a low-pass filter forms phase
detector useful in phase-locked-loop circuitry. R
is often used in
PLL circuitry to provide desired loop-damping characteristics.
1k
θ
θ
MPY634
X
1
+V
S
X
2
Out
SF
Z
1
Y
1
Z
2
Y
2
–V
S
–15V
+15V
Z Input
10V FS
12V PK
V
OUT
= 10V(Z
2
1
) + X
2
Reverse
this and
X inputs
for
Negative
Outputs
Output, ±12V PK
R
(Must be
Provided)
Optional
Summing
Input, X,
±10V PK
FIGURE 4. Basic Divider Connection.
Accuracy of the divider mode typically ranges from 1.0% to
2.5% for a 10 to 1 denominator range depending on device
grade. Accuracy is primarily limited by input offset voltages
and can be significantly improved by trimming the offset of
the X input. A trim voltage of
±
3.5mV applied to the “l(fā)ow
side” X input (X
2
for positive input voltages on X
1
) can
produce similar accuracies over 100 to 1 denominator range.
To trim, apply a signal which varies from 100mV to 10V at
a low frequency (less than 500Hz). An offset sine wave or
ramp is suitable. Since the ratio of the quantities should be
constant, the ideal output would be a constant 10V. Using
AC coupling on an oscilloscope, adjust the offset control for
minimum output voltage variation.
SQUARE-ROOTER
A square-rooter connection is shown in Figure 5. Input
voltage is limited to one polarity (positive for the connection
shown). The diode prevents circuit latch-up should the input
go negative. The circuit can be configured for negative input
and positive output by reversing the polarity of both the X
and Y inputs. The output polarity can be reversed by revers-
ing the diode and X input polarity. A load resistance of
approximately 10k
must be provided. Trimming for im-
proved accuracy would be accomplished at the Z input.
MPY634
X
1
+V
S
X
2
V
O
SF
Z
1
Y
1
Z
2
Y
2
–V
S
–15V
+15V
OPA606
1k
Minor gain adjustments are accomplished with the 1k
variable resistor
connected to the scale factor adjustment pin, SF. Bandwidth of this circuit
is limited by A
1
, which is operated at relatively high gain.
A
1
39k
2k
2k
+
–
E
S
+
–
E
C
–15V
V
O
= 10 E
C
E
S
MPY634
X
1
+V
S
X
2
Out
SF
Z
1
Y
1
Z
2
Y
2
–V
S
–15V
+15V
Optional
Summing Input
±10V PK
X Input
(Denominator)
0.1V
≤
X
≤
10V
Z Input
(Numerator)
±10V FS,
±12V PK
+
–
(X
1
– X
2
)
V
OUT
= 10V(Z
1
2
– Z
1
)
Output, ±12V PK
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MPY634KP | 制造商:BURR-BROWN 功能描述:IC MULTIPLIER 4 QUAD 2% 10MHZ 634 |
| MPY634KP | 制造商:Texas Instruments 功能描述:Multiplexer IC |
| MPY634KPG4 | 功能描述:增效器/分頻器 ANALOG MULTIPLIER RoHS:否 制造商:Texas Instruments 產(chǎn)品:Multiplier 邏輯系列: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-14 |
| MPY634KU | 功能描述:增效器/分頻器 Wide BW Precision Analog Multiplier RoHS:否 制造商:Texas Instruments 產(chǎn)品:Multiplier 邏輯系列: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-14 |
| MPY634KU | 制造商:Texas Instruments 功能描述:ANALOGUE MULTIPLIER SOIC16 634 |
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