參數(shù)資料
型號(hào): MCP631T-E/OT
廠商: Microchip Technology
文件頁(yè)數(shù): 15/62頁(yè)
文件大小: 0K
描述: IC OP AMP SGL 24MHZ SOT23-5
標(biāo)準(zhǔn)包裝: 3,000
放大器類(lèi)型: 通用
電路數(shù): 1
輸出類(lèi)型: 滿(mǎn)擺幅
轉(zhuǎn)換速率: 10 V/µs
增益帶寬積: 24MHz
電流 - 輸入偏壓: 4pA
電壓 - 輸入偏移: 1800µV
電流 - 電源: 2.5mA
電流 - 輸出 / 通道: 70mA
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(lèi)型: 表面貼裝
封裝/外殼: SC-74A,SOT-753
供應(yīng)商設(shè)備封裝: SOT-23-5
包裝: 帶卷 (TR)
MCP631/2/3/4/5/9
DS22197B-page 22
2009-2011 Microchip Technology Inc.
4.2
Rail-to-Rail Output
4.2.1
MAXIMUM OUTPUT VOLTAGE
The Maximum Output Voltage (see Figure 2-16 and
Figure 2-17) describes the output range for a given
load. For instance, the output voltage swings to within
50 mV of the negative rail with a 1 k
load tied to VDD/
2.
4.2.2
OUTPUT CURRENT
Figure 4-4 shows the possible combinations of output
voltage (VOUT) and output current (IOUT), when
VDD = 5.5V. IOUT is positive when it flows out of the op
amp into the external circuit.
FIGURE 4-4:
Output Current.
4.2.3
POWER DISSIPATION
Since the output short circuit current (ISC) is specified
at ±70 mA (typical), these op amps are capable of both
delivering and dissipating significant power.
Figure 4-5 shows the quantities used in the following
power calculations for a single op amp. RSER is 0 in
most applications; it can be used to limit IOUT. VOUT is
the op amp’s output voltage, VL is the voltage at the
load, and VLG is the load’s ground point. VSS is usually
ground (0V). The input currents are assumed to be
negligible. The currents shown are approximately:
EQUATION 4-1:
FIGURE 4-5:
Diagram for Power
Calculations.
The instantaneous op amp power (POA(t)), RSER power
(PRSER(t)) and load power (PL(t)) are:
EQUATION 4-2:
The maximum op amp power, for resistive loads,
occurs when VOUT is halfway between VDD and VLG or
halfway between VSS and VLG:
EQUATION 4-3:
The maximum ambient to junction temperature rise
(
TJA) and junction temperature (TJ) can be calculated
using POAmax, ambient temperature (TA), the package
thermal resistance (
JA) found in Table 1-4, and the
number of op amps in the package (assuming equal
power dissipations):
EQUATION 4-4:
-0.5
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
-120
-100
-80
-60
-40
-20
0
20
40
60
80
100
120
IOUT (mA)
V
OU
T(V)
RL = 10
RL = 100
RL = 1 k
VOH Limited
VOL Limited
-I
SC
Limited
+I
SC
Li
mi
te
d
(VDD = 5.5V)
VOUT –VLG
IOUT =IL =
RSER +RL
IDD IQ +max(0, IOUT)
ISS –IQ +min(0, IOUT)
Where:
IQ = quiescent supply current
VDD
VL
RL
VLG
IDD
ISS
IL
IOUT
RSER
VOUT
VSS
MCP63X
POA(t) = IDD (VDD –VOUT)+ ISS (VSS –VOUT)
PRSER(t) = IOUT2RSER
PL(t) = IL2RL
POAmax
max2(VDD –VLG,VLG –VSS)
4(RSER +RL)
TJA =POA(t) JA nPOAmaxJA
TJ =TA + TJA
Where:
n = number of op amps in package (1, 2)
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