CA3028A, CA3028B, CA3053
Test Circuits (Continued)
VCC
VCC
10Ω
INPUT
50Ω
0.01µF
1
3
10µH
8
7
6
1kΩ LOAD
OUTPUT
ICUT
5
0.001µF
1kΩ
2kΩ
0.01µF
FIGURE 11. TRANSFER CHARACTERISTIC (VOLTAGE GAIN)
TEST CIRCUIT (10.7MHz) DIFFERENTIAL
AMPLIFIER CONFIGURATION FOR CA3028A,
CA3028B AND CA3053
3µF
R
(NOTE)
R
(NOTE)
OSCILLOSCOPE
WITH HIGH
GAIN DIFF. INPUT
(TEKTRONIX TYPE
VDIFF
(RMS)
530, 540, OR 580
WITH TYPE D
PLUG-IN
TEKTRONIX
TYPE 502 OR
6
EQUIVALENT)
5µF
8
1
50Ω
VIN = 10mV
(RMS)
ICUT
INPUT
SIGNAL
f = 1kHz
3
7
5
3µF
VEE
NOTE: For R = 1.6kΩ: VCC = 12V, VEE = -12V
For R = 2.0kΩ: VCC = 6V, VEE = -6V.
FIGURE 12. DIFFERENTIAL VOLTAGE GAIN, MAXIMUM PEAK-
TO-PEAK OUTPUT VOLTAGE AND BANDWIDTH
TEST CIRCUIT FOR CA3028B
VCC
5µF
INPUT
SIGNAL
f = 1kHz
500Ω
S1
3µF 1kΩ
6
1
OSCILLOSCOPE
1kΩ
WITH HIGH
GAIN DIFF. INPUT
(TEKTRONIX TYPE
VDIFF
530, 540, OR 580
WITH TYPE D
(RMS)
PLUG-IN
TEKTRONIX
8
TYPE 502 OR
EQUIVALENT)
5
ICUT
7
3
VIN = 0.3V
(RMS)
3µF
VEE
NOTES:
VX RANGE
OF COMMON
MODE REJECTION
19. For CMR test: S1 to GND.
20. For Input Common Mode Voltage Range Test: S1 to VX.
21. Common Mode Rejection Ratio = 20log10V---(--D-A---I-)-F--(-F-2---(-)--R(---0--M-.--3--S-)---)-
A = Single-Ended Voltage Gain.
FIGURE 13. COMMON MODE REJECTION RATIO AND COMMON MODE INPUT VOLTAGE RANGE TEST CIRCUIT FOR CA3028B
7-12