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參數(shù)資料
型號： MCP654-E/SL
廠商： Microchip Technology
文件頁數(shù)： 19/66頁
文件大?。?/td> 0K
描述： IC OP AMP 50MHZ 14 SOIC
標(biāo)準(zhǔn)包裝： 57
系列： mCal 技術(shù)
放大器類型： 通用
電路數(shù)： 4
輸出類型： 滿擺幅
轉(zhuǎn)換速率： 30 V/µs
增益帶寬積： 50MHz
電流 - 輸入偏壓： 6pA
電壓 - 輸入偏移： 200µV
電流 - 電源： 6mA
電流 - 輸出 / 通道： 150mA
電壓 - 電源，單路/雙路(±)： 2.5 V ~ 5.5 V
工作溫度： -40°C ~ 125°C
安裝類型： 表面貼裝
封裝/外殼： 14-SOIC（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝： 14-SOIC
包裝： 管件
MCP651/1S/2/3/4/5/9
DS22146C-page 26
2009-2011 Microchip Technology Inc.
4.3.0.3
Power Dissipation
Since the output short circuit current (ISC) is specified
at ±100 mA (typical), these op amps are capable of
both delivering and dissipating significant power. Two
common loads, and their impact on the op amp’s power
dissipation, will be discussed.
Figure 4-7 shows a resistive load (RL) with a DC output
voltage (VOUT). VL is RL’s ground point, VSS is usually
ground (0V) and IOUT is the output current. The input
currents are assumed to be negligible.
FIGURE 4-7:
Diagram for Resistive Load
Power Calculations.
The DC currents are:
EQUATION 4-1:
The DC op amp power is:
EQUATION 4-2:
The maximum op amp power, for resistive loads at DC,
occurs when VOUT is halfway between VDD and VL or
halfway between VSS and VL:
EQUATION 4-3:
Figure 4-7 shows a capacitive load (CL), which is
driven by a sine wave with DC offset. The capacitive
load causes the op amp to output higher currents at
higher frequencies. Because the output rectifies IOUT,
the op amp’s dissipated power increases (even though
the capacitor does not dissipate power).
FIGURE 4-8:
Diagram for Capacitive Load
Power Calculations.
The output voltage is assumed to be:
EQUATION 4-4:
The op amp’s currents are:
EQUATION 4-5:
The op amp’s instantaneous power, average power
and peak power are:
EQUATION 4-6:
The power dissipated in a package depends on the
powers dissipated by each op amp in that package:
MCP65X
VDD
VOUT
RL
VL
IDD
ISS
IOUT
VSS
I
OUT
V
OUT
V
L
–
R
L
--------------------------
=
I
DD
I
Q
max 0 I
OUT
,
+
I
SS
I
–
Q
min 0 I
OUT
,
+
Where:
IQ = Quiescent supply current for one
op amp (mA/amplifier)
VOUT = A DC value (V)
P
OA
I
DD VDD
V
OUT
–
I
SS VSS
V
OUT
–
+
=
max P
OA
I
DD VDD
V
SS
–
=
max
2
V
DD
V
L
–
V
L
V
SS
–
4R
L
------------------------------------------------------------------
+
CL
MCP65X
VDD
VOUT
IDD
ISS
IOUT
VSS
V
OUT
V
DC
V
AC
t
sin
+
=
Where:
VDC = DC offset (V)
VAC = Peak output swing (VPK)
= Radian frequency (2 f) (rad/s)
I
OUT
C
L
dV
OUT
dt
-----------------
V
ACCL
t
cos
==
I
DD
I
Q
max 0 I
OUT
,
+
I
SS
I
–
Q
min 0 I
OUT
,
+
Where:
IQ = Quiescent supply current for one
op amp (mA/amplifier)
P
OA
I
DD VDD
V
OUT
–
I
SS VSS
V
OUT
–
+
=
ave P
OA
V
DD
V
SS
–
I
Q
4V
AC fCL
------------------------
+
=
max P
OA
V
DD
V
SS
–
I
Q
2V
AC fCL
+
=
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MCP654T-E/ST 功能描述:運(yùn)算放大器 - 運(yùn)放 Quad 50MHz OP mCal E temp 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
MCP655-E/MF 功能描述:運(yùn)算放大器 - 運(yùn)放 Dual 50MHz OP Dual Auto-cal E temp 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
MCP655-E/UN 功能描述:運(yùn)算放大器 - 運(yùn)放 Dual 50MHz OP Dual Auto-cal E temp 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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