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| 型号： | AD8616ARZ-REEL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 3/20页 |
| 文件大小： | 0K |
| 描述： | IC OPAMP GP R-R CMOS 24MHZ 8SOIC |
| 标准包装： | 2,500 |
| 系列： | DigiTrim® |
| 放大器类型： | 通用 |
| 电路数： | 2 |
| 输出类型： | 满摆幅 |
| 转换速率： | 12 V/µs |
| 增益带宽积： | 24MHz |
| 电流 - 输入偏压： | 0.2pA |
| 电压 - 输入偏移： | 23µV |
| 电流 - 电源： | 1.7mA |
| 电流 - 输出 / 通道： | 150mA |
| 电压 - 电源，单路/双路(±)： | 2.7 V ~ 5.5 V，±1.35 V ~ 2.75 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SO |
| 包装： | 带卷 (TR) |
Data Sheet
AD8615/AD8616/AD8618
Rev. F | Page 11 of 20
APPLICATIONS INFORMATION
INPUT OVERVOLTAGE PROTECTION
that allows voltages exceeding the supply to be applied at the input.
It is recommended, however, not to apply voltages that exceed
the supplies by more than 1.5 V at either input of the amplifier.
If a higher input voltage is applied, series resistors should be
used to limit the current flowing into the inputs.
The input current should be limited to <5 mA. The extremely
low input bias current allows the use of larger resistors, which
allows the user to apply higher voltages at the inputs. The use of
these resistors adds thermal noise, which contributes to the overall
output voltage noise of the amplifier.
For example, a 10 kΩ resistor has less than 13 nV/√Hz of
thermal noise and less than 10 nV of error voltage at room
temperature.
OUTPUT PHASE REVERSAL
a phenomenon that occurs when the voltage applied at the input of
the amplifier exceeds the maximum input common mode.
Phase reversal can cause permanent damage to the amplifier
and can create lock ups in systems with feedback loops.
VO
LT
A
GE
(2
V
/D
IV
)
TIME (2ms/DIV)
VIN
VOUT
VS = ±2.5V
VIN = 6V p-p
AV = 1
RL = 10k
04
64
8-
0
36
Figure 36. No Phase Reversal
DRIVING CAPACITIVE LOADS
capacitive loads of up to 500 pF without oscillating, a large amount
of overshoot is present when operating at frequencies above
100 kHz. This is especially true when the amplifier is configured
in positive unity gain (worst case). When such large capacitive
loads are required, the use of external compensation is highly
recommended.
This reduces the overshoot and minimizes ringing, which in
AD8618. One simple technique for compensation is the snubber,
which consists of a simple RC network. With this circuit in place,
output swing is maintained and the amplifier is stable at all gains.
Figure 38 shows the implementation of the snubber, which
reduces overshoot by more than 30% and eliminates ringing
that can cause instability. Using the snubber does not recover
the loss of bandwidth incurred from a heavy capacitive load.
VO
L
T
A
GE
(1
00
m
V
/D
IV
)
TIME (2s/DIV)
VS = ±2.5V
AV = 1
CL = 500pF
0
46
48
-03
7
Figure 37. Driving Heavy Capacitive Loads Without Compensation
V+
200
500pF
V–
VEE
VCC
200mV
–
+
–
04
64
8-
0
38
Figure 38. Snubber Network
VO
L
T
A
GE
(10
0mV
/DI
V
)
TIME (10s/DIV)
VS =±2.5V
AV = 1
RS = 200
CS = 500pF
CL = 500pF
04
64
8-
03
9
Figure 39. Driving Heavy Capacitive Loads Using the Snubber Network
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD8616ARZ-REEL1 | 制造商:AD 制造商全称:Analog Devices 功能描述:Precision, 20 MHz, CMOS, Rail-to-Rail Input/Output Operational Amplifiers |
| AD8616ARZ-REEL7 | 功能描述:IC OPAMP GP R-R CMOS 24MHZ 8SOIC RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:DigiTrim® 标准包装:1,000 系列:- 放大器类型:电压反馈 电路数:4 输出类型:满摆幅 转换速率:33 V/µs 增益带宽积:20MHz -3db带宽:30MHz 电流 - 输入偏压:2nA 电压 - 输入偏移:3000µV 电流 - 电源:2.5mA 电流 - 输出 / 通道:30mA 电压 - 电源，单路/双路(±):4.5 V ~ 16.5 V，±2.25 V ~ 8.25 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-SOIC（0.154"，3.90mm 宽） 供应商设备封装:14-SOIC 包装:带卷 (TR) |
| AD8616ARZ-REEL71 | 制造商:AD 制造商全称:Analog Devices 功能描述:Precision, 20 MHz, CMOS, Rail-to-Rail Input/Output Operational Amplifiers |
| AD8616ARZ-REEL7-DASSAULT | 制造商:Analog Devices 功能描述: |
| AD8617 | 制造商:Analog Devices 功能描述:LOW COST, LOW POWER, LOW VOLTAGE CMOS OP AMP - Bulk |
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