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参数资料
| 型号： | EL2276CS |
| 英文描述： | 70 MHz/1 mA Current Mode Feedback Amp w/Disable |
| 中文描述： | 70兆赫/ 1 mA电流模反馈放大器瓦特/禁用 |
| 文件页数： | 4/20页 |
| 文件大小： | 359K |
| 代理商： | EL2276CS |
EL2176CEL2276C
70 MHz1 mA Current Mode Feedback Amp wDisable
Applications Information
Contd
entire 1 mA supply current of each EL2176C
EL2276C amplifier Special circuitry has been in-
corporated in the EL2176CEL2276C to reduce
the variation of output impedance with current
output This results in dG and dP specifications
of 015% and 015 while driving 150
X at a gain
of a2
Video Performance has also been measured with
a 500
X load at a gain of a1 Under these condi-
tions the EL2176CEL2276C have dG and dP
specifications of 001% and 002
respectively
while driving 500
X at AV ea1
Output Drive Capability
In spite of its low 1 mA of supply current the
EL2176C is capable of providing a minimum of
g
80 mA of output current Similarly each am-
plifier of the EL2276C is capable of providing a
minimum of g50 mA These output drive levels
are unprecedented in amplifiers running at these
supply currents With a minimum g80 mA of
output drive the EL2176C is capable of driving
50
X loads to g4V making it an excellent choice
for driving isolation transformers in telecommu-
nications applications Similarly the g50 mA
minimum output drive of each EL2276C amplifi-
er allows swings of g25V into 50
X loads
Driving Cables and Capacitive Loads
When used as a cable driver double termination
is always recommended for reflection-free per-
formance For those applications the back-termi-
nation series resistor will decouple the EL2176C
EL2276C from the cable and allow extensive ca-
pacitive drive However other applications may
have high capacitive loads without a back-termi-
nation resistor In these applications a small se-
ries resistor (usually between 5
X and 50X) can be
placed in series with the output to eliminate most
peaking The gain resistor (RG) can then be cho-
sen to make up for any gain loss which may be
created by this additional resistor at the output
In many cases it is also possible to simply in-
crease the value of the feedback resistor (RF)to
reduce the peaking
Current Limiting
The EL2176CEL2276C have no internal cur-
rent-limiting circuitry If any output is shorted
it is possible to exceed the Absolute Maximum
Ratings for output current or power dissipation
potentially resulting in the destruction of the de-
vice
Power Dissipation
With the high output drive capability of the
EL2176CEL2276C it is possible to exceed the
150 C Absolute Maximum junction temperature
under certain very high load current conditions
Generally speaking when RL falls below about
25
X it is important to calculate the maximum
junction temperatu re (TJmax) for the application
to determine if power-supply voltages load con-
ditions or package type need to be modified for
the EL2176CEL2276C to remain in the safe op-
erating area These parameters are calculated as
follows
TJMAX e TMAX a (iJA n PDMAX)
1
where
TMAX
e
Maximum Ambient Temperature
iJA
e
Thermal Resistance of the Package
n
e
Number of Amplifiers in the Pack-
age
PDMAX e Maximum Power Dissipation of
Each Amplifier in the Package
PDMAX for each amplifier can be calculated as
follows
PDMAX e (2 VS ISMAX) a
(VS b VOUTMAX) (VOUTMAX RL))
2
where
VS
e
Supply Voltage
ISMAX
e
Maximum Supply Current of 1
Amplifier
VOUTMAX e Max Output Voltage of the Ap-
plication
RL
e
Load Resistance
12
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相关代理商/技术参数 |
参数描述 |
|---|---|
| EL2276CS-02 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Intersil Corporation 功能描述: |
| EL2276CS-T13 | 功能描述:IC OP AMP CMF DUAL 5V 14-SOIC RoHS:否 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:50 系列:- 放大器类型:通用 电路数:2 输出类型:满摆幅 转换速率:1.8 V/µs 增益带宽积:6.5MHz -3db带宽:4.5MHz 电流 - 输入偏压:5nA 电压 - 输入偏移:100µV 电流 - 电源:65µA 电流 - 输出 / 通道:35mA 电压 - 电源，单路/双路(±):1.8 V ~ 5.25 V，±0.9 V ~ 2.625 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:管件 |
| EL2276CS-T7 | 功能描述:IC OP AMP CMF DUAL 5V 14-SOIC RoHS:否 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:50 系列:- 放大器类型:通用 电路数:2 输出类型:满摆幅 转换速率:1.8 V/µs 增益带宽积:6.5MHz -3db带宽:4.5MHz 电流 - 输入偏压:5nA 电压 - 输入偏移:100µV 电流 - 电源:65µA 电流 - 输出 / 通道:35mA 电压 - 电源，单路/双路(±):1.8 V ~ 5.25 V，±0.9 V ~ 2.625 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:管件 |
| EL2276CSZ | 功能描述:高速运算放大器 EL2276CSZ 70 MHZ DL CMF OP AMP 5 V W/DA RoHS:否 制造商:Texas Instruments 通道数量:1 电压增益 dB:116 dB 输入补偿电压:0.5 mV 转换速度:55 V/us 工作电源电压:36 V 电源电流:7.5 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| EL2276CSZ-T13 | 功能描述:高速运算放大器 EL2276CSZ 70 MHZ DL CMF OP AMP 5 V W/DA RoHS:否 制造商:Texas Instruments 通道数量:1 电压增益 dB:116 dB 输入补偿电压:0.5 mV 转换速度:55 V/us 工作电源电压:36 V 电源电流:7.5 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
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