CA3140E Intersil, CA3140E Datasheet - Page 11

• Manufacturer Part Number: CA3140E
• Description: IC OPAMP DUAL BIMOS 4.5MHZ 8-DIP
• Manufacturer: Intersil

Specifications of CA3140E

• Amplifier Type: General Purpose
• Number Of Circuits: 1
• Slew Rate: 9 V/µs
• Gain Bandwidth Product: 4.5MHz
• Current - Input Bias: 10pA
• Voltage - Input Offset: 5000µV
• Current - Supply: 4mA
• Current - Output / Channel: 40mA
• Voltage - Supply, Single/dual (±): 4 V ~ 36 V, ±2 V ~ 18 V
• Operating Temperature: -55°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Output Type: -
• -3db Bandwidth: -
• Other names: CA3140

Three tone test signals, highest frequency ≥0.5MHz. Note the slight
asymmetry at the three second/cycle signal. This asymmetry is due to
slightly different positive and negative integration from the CA3080A
and from the PC board and component leakages at the 100pA level.
FIGURE 10C. FUNCTION GENERATOR WITH FIXED
Bottom Trace: Output of “Log” generator; 10V/Div., 500ms/Div.
Center Trace: External output of triangular function generator;
FIGURE 10B. FIGURE FUNCTION GENERATOR SWEEPING
SYMMETRY
Top Trace: Output at junction of 2.7Ω and 51Ω resistors;
FROM BUFFER METER
DRIVER (OPTIONAL)
FREQUENCIES
-15V
5V/Div., 500ms/Div.
2V/Div., 500ms/Div.
THIS NETWORK IS USED WHEN THE
OPTIONAL BUFFER CIRCUIT IS NOT USED
360Ω
360Ω
2MΩ
100kΩ
-15V
7.5kΩ
+15V
3
2
1V/Div., 1s/Div.
39kΩ
CA3080A
+
-
11
5
+15V
-15V
120Ω
7
4
7-60
pF
6
10kΩ
SHAPE
FREQ.
HIGH
15kΩ
+15V
FIGURE 10. FUNCTION GENERATOR
FREQUENCY
ADJUSTMENT
pF
51
CA3140, CA3140A
FIGURE 10A. CIRCUIT
3
2
2kΩ
-15V
AMPLIFIER
CA3140
+
-
OUTPUT
+15V
7
4
5.1kΩ
0.1
µF
0.1
µF
6
ADJUSTMENT
FREQUENCY
TO
SINE WAVE
SHAPER
HIGH
FREQUENCY
LEVEL
10kΩ
7-60pF
RATE
FINE
11kΩ
EXTERNAL
COARSE
OUTPUT
RATE
11kΩ
FIGURE 10D. INTERCONNECTIONS
-15V
910kΩ
GENERATOR
METER DRIVER
CENTERING
AND BUFFER
GENERATOR
SINE WAVE
AMPLIFIER
FUNCTION
SWEEP
10kΩ
SHAPER
62kΩ
2
3
13kΩ
CA3080
+
OFF
-
V-
5
SWEEP
GATE
M
7
4
INT.
V-
SWEEP
LENGTH
+15V
-15V
EXT.
DC LEVEL
6
ADJUST
SUPPLY ±15V
1N914
POWER
EXTERNAL
INPUT
10kΩ
2.7kΩ
TO OUTPUT
AMPLIFIER
WIDEBAND
LINE DRIVER
EXTERNAL
OUTPUT
July 11, 2005
FN957.10
51Ω
+15V
-15V