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參數(shù)資料
| 型號： | CA3094A |
| 廠商： | Intersil Corporation |
| 元件分類： | 運動控制電子 |
| 英文描述： | 30MHz, High Output Current Operational Transconductance Amplifier (OTA) |
| 中文描述： | 30MHz的，高輸出電流運算跨導放大器（OTA）的 |
| 文件頁數(shù)： | 4/14頁 |
| 文件大?。?/td> | 241K |
| 代理商： | CA3094A |
3-15
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 100
current limiting
resistor be inserted between Terminal 7 and the V+ supply.
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
S
) are set to 0
or
1M
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 50
μ
A I
ABC
are:
and
.
E
N
18nV
Hz
=
I
N
1.8pA
Hz
=
Test Circuits
FIGURE 1. INPUT OFFSET VOLTAGE AND POWER SUPPLY REJECTION TEST CIRCUIT
FIGURE 2. INPUT OFFSET CURRENT TEST CIRCUIT
FIGURE 3. INPUT BIAS CURRENT TEST CIRCUIT
CA3094
2
3
1
4
8
6
5
7
E
OUT
30V
15V
100
100
1k
100pF
10k
9.9k
300k
30V
NOTES:
3. Input Offset Voltage:
4. For Power Supply Rejection Test: (1) vary V+ by -2V; then (2)
vary V- by +2V.
5. Equations:
.
6. Power Supply Rejection:
.
Maximum Reading of Step 1 or Step 2
VIO
-----------------
=
V+ Rejection
–
------------------------------------------------
=
V- Rejection
------------------------------------------------
–
=
(1)
(2)
dB
(
)
20
---------------------------------------------
log
=
CA3094
2
1
4
6
8
7
E
OUT
15V
1M
220
0.001
μ
F
150k
1M
30V
3
5
R
ABC
NOTES:
7. P
DISSIPATION
= (V+)(I)
8. IOS
-------------------------------
=
CA3094A
2
3
4
5
7
300k
30V
-
+
NOTE: II
I
2
--
=
15V
CA3094, CA3094A, CA3094B
相關PDF資料 |
PDF描述 |
|---|---|
| CA3094AE | 30MHz, High Output Current Operational Transconductance Amplifier (OTA) |
| CA3094AT | 30MHz, High Output Current Operational Transconductance Amplifier (OTA) |
| CA3094B | 30MHz, High Output Current Operational Transconductance Amplifier (OTA) |
| CA3094BM | 30MHz, High Output Current Operational Transconductance Amplifier (OTA) |
| CA3094BT | 30MHz, High Output Current Operational Transconductance Amplifier (OTA) |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| CA3094AE | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:30MHz, High Output Current Operational Transconductance Amplifier (OTA) |
| CA3094AH | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| CA3094AT | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:30MHz, High Output Current Operational Transconductance Amplifier (OTA) |
| CA3094B | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:30MHz, High Output Current Operational Transconductance Amplifier (OTA) |
| CA3094BE | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Feedback Operational Amplifier |
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