CA3028A, CA3028B, CA3053
Typical Performance Curves (Continued)
3.0
DIFFERENTIAL AMPLIFIER CONFIGURATION
o
T
= 25 C, f = 10.7MHz
A
2.5
2.0
V
= +12V
CC
1.5
1.0
V
= +9V
CC
0.5
0
0.05
0.1
0.15
INPUT VOLTAGE (V)
FIGURE 38. TRANSFER CHARACTERISTICS (DIFFERENTIAL AMPLIFIER CONFIGURATION)
Glossary of Terms
AGC Bias Current
Input Offset Voltage
The current drawn by the device from the AGC voltage The difference in the DC voltages which must be applied to
source, at maximum AGC voltage.
AGC Range
the input terminals to obtain equal quiescent operating
voltages (zero output offset voltage) at the output terminals.
Noise Figure
The total change in voltage gain (from maximum gain to
complete cutoff) which may be achieved by application of the The ratio of the total noise power of the device and a
specified range of dc voltage to the AGC input terminal of resistive signal source to the noise power of the signal
the device.
source alone, the signal source representing a generator of
zero impedance in series with the source resistance.
Common Mode Rejection Ratio
Power Gain
The ratio of the full differential voltage gain to the common
mode voltage gain.
The ratio of the signal power developed at the output of the
device to the signal power applied to the input, expressed in
dB.
Power Dissipation
The total power drain of the device with no signal applied
and no external load current.
Quiescent Operating Current
The average (DC) value of the current in either output
terminal.
Input Bias Current
The average value (one half the sum) of the currents at the
two input terminals when the quiescent operating voltages at
the two output terminals are equal.
Voltage Gain
The ratio of the change in output voltage at either output
terminal with respect to ground, to a change in input voltage
at either input terminal with respect to ground, with the other
input terminal at AC ground.
Input Offset Current
The difference in the currents at the two input terminals
when the quiescent operating voltages at the two output ter-
minals are equal.
7-17
HARRIS [ HARRIS CORPORATION ]
