Since the output short circuit cu" />
參數(shù)資料
型號: MCP659-E/ML
廠商: Microchip Technology
文件頁數(shù): 19/66頁
文件大?。?/td> 0K
描述: IC OP AMP 50MHZ WITH MCAL 16 QFN
標準包裝: 91
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: 16-VQFN 裸露焊盤
供應商設備封裝: 16-QFN(4x4)
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
+
=
相關(guān)PDF資料
PDF描述
53325-0660 CONN HEADER 2MM 6POS R/A TIN
PESD5V0S1BA,115 DIODE BIDIR ESD PROTECT SOD323
PEC05SFAN CONN HEADER .100 SINGL STR 5POS
PEC06SAAN CONN HEADER .100 SINGL STR 6POS
PESD5V0U1BL,315 DIODE ESD PROECT ULOW SOD-882
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCP659T-E/ML 功能描述:運算放大器 - 運放 Quad 50MHz OP Dual 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
MCP65R41T-1202E/CHY 功能描述:校驗器 IC Single Push/Pull Comparator 1.2V Ref RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓(最大值):6 mV 電源電流(最大值):1350 nA 響應時間: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel
MCP65R41T-2402E/CHY 功能描述:校驗器 IC Single Push/Pull Comparator 2.4V Ref RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓(最大值):6 mV 電源電流(最大值):1350 nA 響應時間: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel
MCP65R46T-1202E/CHY 功能描述:校驗器 IC Single Open Drain Comparator 1.2V Ref RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓(最大值):6 mV 電源電流(最大值):1350 nA 響應時間: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel
MCP65R46T-2402E/CHY 功能描述:校驗器 IC Single Open Drain Comparator 2.4V Ref RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓(最大值):6 mV 電源電流(最大值):1350 nA 響應時間: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel