EL4083 View Datasheet(PDF) - Elantec -> Intersil
Part Name
Description
Manufacturer
EL4083 Datasheet PDF : 16 Pages
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EL4083C
Current Mode Four Quadrant Multiplier
Applications
Basic Product Functions
Figures 18 and 19 are the basic schematics for
many of the applications of the EL4083 These
can perform signal mixing frequency doubling
modulation demodulation gain control voltage-
controlled amplification multiplication and
squaring Figure 18 has resistively terminated
differential outputs and has the widest band-
width The figure also shows the option of using
the EL2260 dual CMF amplifier to recover the
outputs differentially at very low impedance
This has a maximum 3 dB bandwidth of
130 MHz and settles to 1% in 25 ns Figure 19
uses an EL2075 at the outputs as a differential to
single ended converter with gain to take advan-
tage of the performance enhancements of the dif-
ferentially recovered output mentioned above
and to provide a high level low impedance drive
The b3 dB bandwidth of this circuit is over
150 MHz using good layout techniques Howev-
er to achieve this bandwidth one must restrict
the output swing to little more than 1 Vpp to
avoid running into the 500V ms minimum slew
rate of the EL2075 Table 2 shows the input sig-
nal assignments for the applications listed above
Table 2 Input Signal Assignments for Figures 18 and 19 Circuits
Application
Mixer
VX
Signal 1
VY
Signal 2
Frequency Doubler
Signal
Signal
Modulator
Modulating Signal
Carrier
Demodulator
Local Oscillator
Modulated Signal
Gain Control VCA
Gain Control
Signal
Multiplier
Signal 1
Signal 2
Squarer
Signal
Signal
X means not connected if function is not used
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