参数资料
| 型号： | MIC922YC5 TR |
| 厂商： | Micrel Inc |
| 文件页数： | 2/11页 |
| 文件大小： | 0K |
| 描述： | IC OPAMP 230MHZ HS LP SC70-5 |
| 标准包装： | 1 |
| 系列： | Teeny™ |
| 放大器类型： | 通用 |
| 电路数： | 1 |
| 转换速率： | 1500 V/µs |
| 增益带宽积： | 230MHz |
| -3db带宽： | 400MHz |
| 电流 - 输入偏压： | 1.7µA |
| 电压 - 输入偏移： | 400µV |
| 电流 - 电源： | 2.5mA |
| 电流 - 输出 / 通道： | 84mA |
| 电压 - 电源，单路/双路(±)： | ±2.5 V ~ 9 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-TSSOP（5 引线），SC-88A，SOT-353 |
| 供应商设备封装： | SC-70-5 |
| 包装： | 剪切带 (CT) |
| 其它名称： | MIC922YC5 CT |
MIC922
Micrel, Inc.
MIC922
10
May 2006
Applications Information
The MIC922 is a high-speed, voltage-feedback operational
amplier featuring very low supply current and excellent
stability. This device is unity gain stable, capable of driving
high capacitance loads.
Driving High Capacitance
The MIC922 is stable when driving high capacitance, making
it ideal for driving long coaxial cables or other high-capaci-
tance loads. Most high-speed op amps are only able to drive
limited capacitance.
Note: increasing load capacitance does reduce
the speed of the device. In applications where
the load capacitance reduces the speed of the
op amp to an unacceptable level, the effect of
the load capacitance can be reduced by add-
ing a small resistor (<100Ω) in series with the
output.
Feedback Resistor/Capacitor Selection
Conventional op amp gain congurations and resistor selec-
tion apply, the MIC922 is NOT a current feedback device.
Also, for minimum peaking, the feedback resistor should
have low parasitic capacitance. To use the part as a follower,
the output should be connected to input via a short wire. At
high frequency, the parasitic capacitance at the input might
cause peaking in the closed-loop frequency response. A
1pF capacitor should be used across the feedback resistor
to compensate for this parasitic peaking.
Layout Considerations
All high speed devices require careful PCB layout.The follow-
ing guidelines should be observed: Capacitance, par-ticularly
on the two inputs pins will degrade performance; avoid large
copper traces to the inputs. Keep the output signal away from
the inputs and use a ground plane.
It is important to ensure adequate supply bypassing capaci-
tors are located close to the device.
Power Supply Bypassing
Regular supply bypassing techniques are recommended.
A 10F capacitor in parallel with a 0.1F capacitor on both
the positive and negative supplies are ideal. For best perfor-
mance all bypassing capacitors should be located as close
to the op amp as possible and all capacitors should be low
ESL (equivalent series inductance), ESR (equivalent series
resis-tance). Surface-mount ceramic capacitors are ideal.
Thermal Considerations
The SC70-5 package, like all small packages, has a high
thermal resistance. It is important to ensure the IC does not
exceed the maximum operating junction (die) temperature of
85°C. The part can be operated up to the absolute maximum
temperature rating of 125°C, but between 85°C and 125°C
performance will degrade, in par-ticular CMRR will reduce.
An MIC922 with no load, dissipates power equal to the qui-
escent supply current × supply voltage
PD(no load) = (VV+ – VV-)IS
When a load is added, the additional power is dissipated in
the output stage of the op amp. The power dissipated in the
device is a function of supply voltage, output voltage and
output current.
PD(output stage) = (VV+ – VVOUT)IOUT
Total Power Dissipation = PD(no load) + PD(output stage)
Ensure the total power dissipated in the device is no greater
than the thermal capacity of the package. The SC70-5 pack-
age has a thermal resistance of 450°C/W.
Max. Allowable Power Dissipation =
450°C/W
TJ(max) – TA(max)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC923 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:410MHz Low-Power SC70 Op Amp |
| MIC923_06 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:410MHz Low-Power SC70 Op Amp |
| MIC923BC5 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:410MHz Low-Power SC70 Op Amp |
| MIC923BC5 TR | 功能描述:IC OPAMP 410MHZ HS LP SC70-5 RoHS:否 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:Teeny™ 标准包装:2,500 系列:- 放大器类型:通用 电路数:1 输出类型:满摆幅 转换速率:0.11 V/µs 增益带宽积:350kHz -3db带宽:- 电流 - 输入偏压:4nA 电压 - 输入偏移:20µV 电流 - 电源:260µA 电流 - 输出 / 通道:20mA 电压 - 电源，单路/双路(±):2.7 V ~ 36 V，±1.35 V ~ 18 V 工作温度:-40°C ~ 85°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) |
| MIC923BC5TR | 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel 制造商:RF Micro Devices Inc 功能描述: |
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