- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383086 > ICL7641 (Intersil Corporation) Dual, Low Power CMOS Operational Amplifiers(雙路低功耗CMOS放大器) PDF資料下載
參數(shù)資料
| 型號(hào)： | ICL7641 |
| 廠商： | Intersil Corporation |
| 英文描述： | Dual, Low Power CMOS Operational Amplifiers(雙路低功耗CMOS放大器) |
| 中文描述： | 單/雙/四路運(yùn)算放大器 |
| 文件頁數(shù)： | 3/7頁 |
| 文件大小： | 169K |
| 代理商： | ICL7641 |
3
Schematic Diagram
Application Information
Static Protection
All devices are static protected by the use of input diodes.
However, strong static fields should be avoided, as it is
possible for the strong fields to cause degraded diode
junction characteristics, which may result in increased input
leakage currents.
Latchup Avoidance
Junction-isolated CMOS circuits employ configurations
which produce a parasitic 4-layer (PNPN) structure. The
4-layer structure has characteristics similar to an SCR, and
under certain circumstances may be triggered into a low
impedance state resulting in excessive supply current. To
avoid this condition, no voltage greater than 0.3V beyond the
supply rails may be applied to any pin. In general, the op
amp supplies must be established simultaneously with, or
before any input signals are applied. If this is not possible,
the drive circuits must limit input current flow to 2mA to
prevent latchup.
Choosing the Proper I
Q
Each device in the ICL76XX family has a similar I
Q
setup
scheme, which allows the amplifier to be set to nominal
quiescent currents of 10
μ
A, 100
μ
A or 1mA. These current
settings change only very slightly over the entire supply
voltage range. The ICL7611/12 have an external I
Q
control
terminal, permitting user selection of each amplifiers’
quiescent current. The ICL7621 has a fixed I
Q
setting of
100
μ
A.
Output Stage and Load Driving Considerations
Each amplifiers’ quiescent current flows primarily in the
output stage. This is approximately 70% of the I
Q
settings.
This allows output swings to almost the supply rails for
output loads of 1M
, 100k
, and 10k
, using the output
stage in a highly linear class A mode. In this mode,
crossover distortion is avoided and the voltage gain is
maximized. However, the output stage can also be operated
in Class AB for higher output currents. (See graphs under
Typical Operating Characteristics). During the transition from
Class A to Class B operation, the output transfer
characteristic is nonlinear and the voltage gain decreases.
Frequency Compensation
The ICL76XX are internally compensated, and are stable
for closed loop gains as low as unity with capacitive loads
up to 100pF.
INPUT STAGE
SETTING STAGE
I
Q
OUTPUT STAGE
V+
OUTPUT
V-
Q
N11
Q
N10
Q
N9
C
FF
= 9pF
C
C
= 33pF
Q
P9
Q
P8
Q
P7
Q
P6
6.3V
Q
N7
Q
N6
Q
N5
Q
N4
Q
N8
Q
N3
Q
N1
Q
N2
Q
P1
Q
P2
3K
3K
100K
900K
Q
P5
Q
P4
Q
P3
+INPUT
-INPUT
V-
V-
V+
V+
A
C
V-
G
E
V+
TABLE OF JUMPERS
I
Q
ICL7621
C, E
100
μ
A
6.3V
ICL7621
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ICL7650B | Chopper-Stabilized Op Amps |
| ICL7653 | Chopper-Stabilized Op Amps |
| ICL7653B | Chopper-Stabilized Op Amps |
| ICL7650IJA | Chopper-Stabilized Op Amps |
| ICL7650IJD | Chopper-Stabilized Op Amps |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ICL7641BCJD | 功能描述:運(yùn)算放大器 - 運(yùn)放 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 |
| ICL7641BCPD | 功能描述:運(yùn)算放大器 - 運(yùn)放 Quad CMOS Low Power 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 |
| ICL7641BCPD+ | 功能描述:運(yùn)算放大器 - 運(yùn)放 Quad CMOS Low Power 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 |
| ICL7641BCWE | 功能描述:運(yùn)算放大器 - 運(yùn)放 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 |
| ICL7641BCWE+ | 功能描述:運(yùn)算放大器 - 運(yùn)放 Quad CMOS Low Power 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。