參數(shù)資料
型號： MAX4291EUK-T
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 運動控制電子
英文描述： Ultra-Small, !.8V, レPower, Rail-to-Rail I/O Op Amps
中文描述： OP-AMP, 3000 uV OFFSET-MAX, 0.5 MHz BAND WIDTH, PDSO5
封裝： MO-178, SOT-23, 5 PIN
文件頁數(shù)： 10/16頁
文件大小： 397K
代理商： MAX4291EUK-T
M
Although the amplifiers are fully guaranteed over tem-
perature for operation down to a +1.8V single supply,
even lower voltage operation is possible in practice.
Figures 4 and 5 show the offset voltage and supply cur-
rent as a function of supply voltage and temperature.
Load-Driving Capability
The MAX4291/MAX4292/MAX4294 are fully guaranteed
over temperature and supply voltage range to drive a
maximum resistive load of 2k
to V
CC
/2, although
heavier loads can be driven in many applications. The
rail-to-rail output stage of the amplifier can be modeled
as a current source when driving the load toward V
CC
,
and as a current sink when driving the load toward V
EE
.
The limit of this current source/sink varies with supply
voltage, ambient temperature, and lot-to-lot variations
of the units.
Figures 6a and 6b show the typical current source and
sink capabilities of the MAX4291/MAX4292/MAX4294
family as a function of supply voltage and ambient tem-
perature. The contours on the graph depict the output
current value, based on driving the output voltage to
within 50mV, 100mV, and 200mV of either power-sup-
ply rail.
For example, a MAX4291 running from a single +1.8V
supply, operating at T
A
= +25°C can source 3.5mA to
within 100mV of V
CC
and is capable of driving a 485
load resistor to V
EE
:
The same application can drive a 220k
load resistor
when terminated in V
CC
/2 (+0.9V in this case).
R
(1.8V
0.1V)
3.5mA
485
to V
L
EE
=
=
Ultra-Small, +1.8V, μPower,
Rail-to-Rail I/O Op Amps
10
______________________________________________________________________________________
SUPPLY VOLTAGE (V)
-700
-600
-650
-550
-500
-450
0
3
2.5
2
1 1.5
0.5
3.5 4
4.5 5 5.5
OFFSET VOLTAGE vs. SUPPLY VOLTAGE
O
μ
V
T
A
= +25
°
C
T
A
= -40
°
C
T
A
= +85
°
C
V
CM
= V
CC
/
2
Figure 4. Offset Voltage vs. Supply Voltage
0
60
20
40
80
100
120
140
0
2 2.5 3
SUPPLY VOLTAGE (V)
1
0.5
1.5
3.5
4.5
5
4
5.5
SUPPLY CURRENT vs. SUPPLY VOLTAGE
S
μ
A
T
A
= +85
°
C
T
A
= -40
°
C
T
A
= +25
°
C
Figure 5. Supply Current vs. Supply Voltage
0
15
5
10
20
25
30
-55
5
20 35
-25
-40
-10
50
80
110
95
65
125
OUTPUT SOURCE CURRENT
vs. TEMPERATURE
TEMPERATURE (
°
C)
O
V
OH
= V
CC
- V
OUT
V
CC
= 5.5V
V
OH
= 200mV
V
CC
= 5.5V
V
OH
= 50mVV
CC
= 1.8V
V
OH
= 100mV
V
CC
= 1.8V
V
OH
= 200mV
V
CC
= 5.5V
V
OH
= 100mV
V
CC
= 1.8V
V
OH
= 50mV
Figure 6a. Output Source Current vs. Temperature
V
OL
= V
OUT
- V
EE
0
10
2
4
6
8
12
14
16
18
-55
5
20 35
-25
-40
-10
50
80
110
95
65
125
OUTPUT SINK CURRENT
vs. TEMPERATURE
TEMPERATURE (
°
C)
O
V
CC
= 1.8V
V
OL
= 200mV
V
CC
= 1.8V
V
OL
= 50mV
V
CC
= 5.5V
V
OL
= 200mV
V
CC
= 5.5V
V
OL
= 100mVV
CC
= 1.8V
V
OL
= 100mV
V
CC
= 5.5V
V
OL
= 50mV
Figure 6b. Output Sink Current vs. Temperature
相關(guān)PDF資料
PDF描述
MAX4292 Ultra-Small, !.8V, レPower, Rail-to-Rail I/O Op Amps
MAX4294 Ultra-Small, !.8V, レPower, Rail-to-Rail I/O Op Amps
MAX4310EUA High-Speed, Low-Power, Single-Supply, Multichannel, Video Multiplexer-Amplifiers
MAX4310ESA High-Speed, Low-Power, Single-Supply, Multichannel, Video Multiplexer-Amplifiers
MAX4315EEE High-Speed, Low-Power, Single-Supply, Multichannel, Video Multiplexer-Amplifiers
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX4291EXK 制造商:Maxim Integrated Products 功能描述:1.8V MICROPOWER RAIL-TO-RAIL OP A - Rail/Tube
MAX4291EXK+ 制造商:Maxim Integrated Products 功能描述:OP AMP SGL GP R-R I/O 2.75V/5.5V 5PIN SC-70 - Rail/Tube
MAX4291EXK+T 功能描述:運算放大器 - 運放 1.8V uPower Rail-Rail 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
MAX4291EXK-T 功能描述:運算放大器 - 運放 1.8V uPower Rail-Rail 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
MAX4292EBL 制造商:Maxim Integrated Products 功能描述:- Rail/Tube
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