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參數(shù)資料
| 型號(hào)： | LM2904 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Low Power Dual Operational Amplifiers(低功耗雙路運(yùn)算放大器) |
| 中文描述： | 低功耗雙運(yùn)算放大器（低功耗雙路運(yùn)算放大器） |
| 文件頁(yè)數(shù)： | 4/12頁(yè) |
| 文件大?。?/td> | 122K |
| 代理商： | LM2904 |
ELECTRICAL CHARACTERISTICS
(continued)
Symbol
DV
io
DI
io
V
O1
/V
O2
Parameter
Min.
Typ.
7
10
Max
30
300
Unit
μ
A/
o
C
pA/
o
C
dB
Input Offset Voltage Drift
Input Offset Current Drift
Channel Separation (note 5)
1kHz
≤
f
≤
20kHz
1. This input current only exist when the voltage at any of the input leads is driven negative. It is due to the collec-
tor-base junction of the input PNP transistor becoming forward biased and thereby acting as input diode clamps.
In addition to this diode action, there is also NPN parasitic action on the IC chip. This transistor action can cause
the output voltages of the Op-amps to go to the V
CC
voltage level (or to ground for a large overdrive) for the time
duration that an input is driven negative.
This is not destructive and normal output will set up again for input voltage higher than –0.3V.
2. Short-circuits from the output to V
CC
can cause excessive heating if V
CC+
> 15V. The maximum output current is
approximatively 40mA independent of the magnitude of V
CC
. Destructive dissipation can result from simultaneous
short-circuits on all amplifiers.
3. V
O
=
1.4V, R
S
= 0
, 5V < V
CC+
<
30V, 0 < V
ic
<
V
CC+
– 1.5V.
4. The direction of the input current is out of the IC. This current is essentially constant, independent of the state of
the output so no loading change exists on the input lines.
5. Due to the proximity of external components insure that coupling is not originating via stray capacitance between
these external parts. This typically can be detected as this type of capacitance increases at higher frequences.
6. The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than
0.3V. The upper end of the common-mode voltage range is V
CC+
– 1.5V.
But either or both inputs can go to +32V without damage.
OPEN LOOP FREQUENCYRESPONSE
(NOTE 3)
140
120
Notes :
V
1.0
10
100
1k
10k
100k
1M
10M
VCC= +10 to + 15V&
-55
C
Tamb
FREQUENCY(Hz)
10M
VI
VCC/2
VCC
-5
0.1
μ
F
VCC
VO
-
+
+125
C
120
100
80
60
40
20
0
Tamb
+125
C
I
V
O
V
VOLAGE FOLLOWER PULSE RESPONSE
0
10
20
30
40
TIME (
μ
s)
RL
VCC = +15V
2 k
4
3
2
1
0
3
2
1
LARGE SIGNALFREQUENCYRESPONSE
20
FREQUENCY(Hz)
OUTPUT CHARACTERISTICS
1k
10k
100k
1M
O
+7V
2k
1k
100k
+15V
VO
-
+
VI
15
10
5
0
OUTPUT SINKCURRENT (mA)
0,001
0,01
0,1
1
10
100
O
VCC = +5V
VCC = +15V
VCC = +30V
-
IO
VO
Tamb= +25
C
vcc/2
vcc
+
10
1
0.1
0.01
LM2904
4/12
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| LM2904_07 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Low power dual operational amplifier |
| LM2904_08 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Low power dual operational amplifier |
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| LM2904ADMG | 功能描述:運(yùn)算放大器 - 運(yùn)放 3-26V Dual Lo PWR -40 to 105deg C RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| LM2904ADMR2 | 功能描述:運(yùn)算放大器 - 運(yùn)放 3-26V Dual Lo PWR RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
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