CA3094E Intersil, CA3094E Datasheet - Page 4

• Manufacturer Part Number: CA3094E
• Description: PROGRAMMABLE POWER SWITCH/AMP
• Manufacturer: Intersil

Specifications of CA3094E

• Rohs Status: RoHS non-compliant
• Amplifier Type: Transconductance
• Number Of Circuits: 1
• Slew Rate: 500 V/µs
• Gain Bandwidth Product: 30MHz
• Current - Input Bias: 200nA
• Voltage - Input Offset: 400µV
• Operating Temperature: -55°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Current - Supply: -
• Output Type: -
• Current - Output / Channel: -
• Voltage - Supply, Single/dual (±): -
• -3db Bandwidth: -
• Other names: CA3094

Operating Considerations
The “Sink” Output (Terminal 8) and the “Drive” Output
(Terminal 6) of the CA3094 are not inherently current (or
power) limited. Therefore, if a load is connected between
Terminal 6 and Terminal 4 (V- or Ground), it is important to
connect a current limiting resistor between Terminal 8 and
Terminal 7 (V+) to protect transistor Q13 under shorted load
conditions. Similarly, if a load is connected between
Terminal 8 and Terminal 7 (V+), the current limiting resistor
should be connected between Terminal 6 and Terminal 4 or
ground. In circuit applications where the emitter of the output
transistor is not connected to the most negative potential in
the system, it is recommended that a 100Ω current limiting
resistor be inserted between Terminal 7 and the V+ supply.
Test Circuits
NOTES:
7. P
100Ω
15V
FIGURE 2. INPUT OFFSET CURRENT TEST CIRCUIT
DISSIPATION
15V
100Ω
1MΩ
2
3
2
3
= (V+)(I)
FIGURE 1. INPUT OFFSET VOLTAGE AND POWER SUPPLY REJECTION TEST CIRCUIT
7
4
CA3094
4
CA3094
7
3-4
5
8
8. I O S
30V
30V
1
R
5
30V
220Ω
ABC
8
0.001µF
1
300kΩ
1kΩ
100pF
=
150kΩ
------------------------------- -
10 6
10kΩ
6
6
E
9.9kΩ
VOLTS
-------------------- -
OUT
CA3094, CA3094A, CA3094B
AMPS
E
1MΩ
E
OUT
OUT
1/F Noise Measurement Circuit
When using the CA3094, A, or B audio amplifier circuits, it is
frequently necessary to consider the noise performance of the
device. Noise measurements are made in the circuit shown in
Figure 20. This circuit is a 30dB, non-inverting amplifier with
emitter follower output and phase compensation from
Terminal 2 to ground. Source resistors (R
1MΩ for E noise and I noise measurements, respectively.
These measurements are made at frequencies of 10Hz,
100Hz and 1kHz with a 1Hz measurement bandwidth. Typical
values for 1/f noise at 10Hz and 50µA I
NOTES:
†
E
3. Input Offset Voltage:
4. For Power Supply Rejection Test: (1) vary V+ by -2V; then (2)
5. Equations:
6. Power Supply Rejection:
N
Maximum Reading of Step 1 or Step 2
vary V- by +2V.
=
(1)
(2)
FIGURE 3. INPUT BIAS CURRENT TEST CIRCUIT
18nV
V+ Rejection
V- Rejection
15V
NOTE: I
⁄
Hz
I
and
=
=
=
-- -
2
I
E
------------------------------------------------ -
E
------------------------------------------------ -
0
V IO
0
I
N
OUT E
O UT E
=
(
2
3
d B
=
200
1.8pA
200
–
–
E
---------------- -
)
100
OUT
=
2
1
O UT
-
OUT
+
20
CA3094A
⁄
7
.
log
Hz
ABC
4
S
-------------------------------------------- -
V
.
) are set to 0Ω or
REJECTIO N
are:
5
30V
300kΩ
1
†
.