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AD734 데이터시트 PDF




Analog Devices에서 제조한 전자 부품 AD734은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

PDF 형식의 AD734 자료 제공

부품번호 AD734 기능
기능 10 MHz/ 4-Quadrant Multiplier/Divider
제조업체 Analog Devices
로고 Analog Devices 로고


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AD734 데이터시트, 핀배열, 회로
FEATURES
High accuracy
0.1% typical error
High speed
10 MHz full power bandwidth
450 V/μs slew rate
200 ns settling to 0.1% at full power
Low distortion
−80 dBc from any input
Third-order IMD typically −75 dBc at 10 MHz
Low noise
94 dB SNR, 10 Hz to 20 kHz
70 dB SNR, 10 Hz to 10 MHz
Direct division mode
2 MHz BW at gain of 100
APPLICATIONS
High performance replacement for AD534
Multiply, divide, square, square root
Modulators, demodulators
Wideband gain control, rms-to-dc conversion
Voltage-controlled amplifiers, oscillators, and filters
Demodulator with 40 MHz input bandwidth
GENERAL DESCRIPTION
The AD734 is an accurate high speed, four-quadrant analog
multiplier that is pin compatible with the industry-standard
AD534 and provides the transfer function W = XY/U. The
AD734 provides a low impedance voltage output with a full
power (20 V p-p) bandwidth of 10 MHz. Total static error
(scaling, offsets, and nonlinearities combined) is 0.1% of full
scale. Distortion is typically less than −80 dBc and guaranteed.
The low capacitance X, Y, and Z inputs are fully differential.
In most applications, no external components are required to
define the function.
The internal scaling (denominator) voltage, U, is 10 V, derived
from a buried-Zener voltage reference. A new feature provides
the option of substituting an external denominator voltage,
allowing the use of the AD734 as a two-quadrant divider with a
1000:1 denominator range and a signal bandwidth that remains
10 MHz, Four-Quadrant
Multiplier/Divider
AD734
FUNCTIONAL BLOCK DIAGRAM
AD734
X1
XIF
X2
X = X1 – X2
HIGH ACCURACY
TRANSLINEAR CORE
DD
U0
DENOMINATOR U
CONTROL
XZ
U
+ XY ÷ U – Z
WIF
W
U1 ER
AO
RU
U2
Y1
YIF
Y2
Y = Y1 – Y2
Z = Z1 – Z2 ZIF
Z1
Z2
Figure 1.
10 MHz to a gain of 20 dB, 2 MHz at a gain of 40 dB, and 200 kHz
at a gain of 60 dB, for a gain-bandwidth product of 200 MHz.
The advanced performance of the AD734 is achieved by a
combination of new circuit techniques, the use of a high speed
complementary bipolar process, and a novel approach to laser
trimming based on ac signals rather than the customary dc
methods. The wide bandwidth (>40 MHz) of the AD734’s input
stages and the 200 MHz gain-bandwidth product of the multiplier
core allow the AD734 to be used as a low distortion demodulator
with input frequencies as high as 40 MHz as long as the desired
output frequency is less than 10 MHz.
The AD734AQ and AD734BQ are specified for the industrial
temperature range of −40°C to +85°C and come in a 14-lead
CERDIP and a 14-lead PDIP package. The AD734SQ/883B,
available processed to MIL-STD-883B for the military range of
−55°C to +125°C, is available in a 14-lead CERDIP.
Rev. E
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2011 Analog Devices, Inc. All rights reserved.




AD734 pdf, 반도체, 판매, 대치품
AD734
Parameter
CMRR
Input Bias Current
(X, Y, Z Inputs)
Input Resistance
Input Capacitance
DENOMINATOR INTERFACES
(U0, U1, AND U2)
Operating Range
Conditions
f = 5 kHz
TMIN to TMAX
Differential
Differential
Min
70
Denominator Range
Interface Resistor
OUTPUT AMPLIFIER (W)
Output Voltage Swing
Open-Loop Voltage Gain
Dynamic Response
3 dB Bandwidth
Slew Rate
Settling Time
To 1%
To 0.1%
Short-Circuit Current
POWER SUPPLIES, ±VS
Operating Supply Range
Quiescent Current
U1 to U2
TMIN to TMAX
X = Y = 0, input to Z
From X or Y input,
CLOAD ≤ 20 pF
W ≤ 7 V rms
±12
8
+20 V or −20 V
output step
TMIN to TMAX
TMIN to TMAX
20
±8
6
A
Typ
85
50
50
2
VN to
VP − 3
1000:1
28
72
10
450
125
200
50
9
1 Figures given are percent of full scale (for example, 0.01% = 1 mV).
2 dBc refers to decibels relative to the full-scale input (carrier) level of 7 V rms.
3 See Figure 28 for test circuit.
Max Min
70
300
400
±12
8
80 20
±16.5 ±8
12 6
B
Typ Max Min
85 70
50 150
300
50
2
VN to
VP − 3
1000:1
28
72
±12
10 8
450
125
200
50 80 20
±16.5 ±8
9 12 6
S
Typ Max Unit
85 dB
50 300 nA
500 nA
50 kΩ
2 pF
VN to
VP − 3
1000:1
28
72
V
V
dB
10 MHz
450 V/μs
125 ns
200 ns
50 80 mA
±16.5 V
9 12 mA
Rev. E | Page 4 of 20

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AD734 전자부품, 판매, 대치품
TYPICAL PERFORMANCE CHARACTERISTICS
0.10
0.08
0.06
0.04
VS = ±15V
RLOAD = 2k
CLOAD = 20pF
0.02
0
–0.02
–0.04
–0.06
–0.08
–0.10
–2V
0
SIGNAL AMPLITUDE
2V
Figure 4. Differential Gain at 3.58 MHz and RLOAD = 2 kΩ
0.25
0.20
0.15
0.10
VS = ±15V
RLOAD = 2k
CLOAD = 20pF
0.05
0
–0.05
–0.10
–0.15
–0.20
–0.25–2V
0
SIGNAL AMPLITUDE
2V
Figure 5. Differential Phase at 3.58 MHz and RLOAD = 2 kΩ
0.5
0.4 VS = ±15V
X = 1.4V RMS
0.3 Y = 10V
RLOAD = 500
0.2 CLOAD = 20pF
0.1
0
–0.1
–0.2
–0.3
–0.4
–0.5
100k
1M
FREQUENCY (Hz)
10M
Figure 6. Gain Flatness, 300 kHz to 10 MHz, RLOAD = 500 Ω
AD734
100
80 Y INPUT, X = 10V
60
X INPUT, Y = 10V
40
20
COMMON-MODE
SIGNAL = 7V RMS
0
1k
100
10k 100k
1M
FREQUENCY (Hz)
Figure 7. CMRR vs. Frequency
10M
80
60
VN
40 VP
20
0
1k
0
–40
–60
–80
10k 100k 1M
FREQUENCY (Hz)
Figure 8. PSRR vs. Frequency
10M
INPUT SIGNAL = 7V RMS
Y INPUT, X NULLED
X INPUT, Y NULLED
–100
1k 10k 100k 1M
FREQUENCY (Hz)
Figure 9. Feedthrough vs. Frequency
10M
Rev. E | Page 7 of 20

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