Operating Temperature Range .........................-40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
DC ELECTRICAL CHARACTERISTICS
(V
DD
= +5V, V
SS
= 0V, V
CM
= 0V, V
OUT
= V
DD
/2, R
L
tied to V
DD
/2,
SHDN
= V
DD
, T
A
= -40°C to +125°C, unless otherwise noted.
Typical values are at T
A
= +25°C.) (Notes 1, 2)
PARAMETER
Supply Voltage Range
Quiescent Supply Current Per
Amplifier
Input Offset Voltage
Input Offset Voltage Tempco
Input Bias Current
Input Offset Current
Differential Input Resistance
Input Common-Mode Voltage
Range
SYMBOL
V
DD
I
D
(Note 3)
Normal mode
V
DD
= 3V
V
DD
= 5V
CONDITIONS
MIN
2.7
2.2
2.5
0.01
±70
±0.3
(Note 4)
(Note 4)
Guaranteed by
CMRR Test
(V
SS
- 0.2V)
≤
V
CM
≤
(V
DD
-
1.6V)
(V
SS
- 0.1V)
≤
V
CM
≤
(V
DD
-
1.7V)
V
DD
= 2.7 to 5.5V
R
L
= 10kΩ to V
DD
/2;
V
OUT
= 100mV to (V
DD
- 125mV)
Large-Signal Voltage Gain
A
VOL
R
L
= 1kΩ to V
DD
/2;
V
OUT
= 200mV to (V
DD
- 250mV)
R
L
= 500Ω to V
DD
/2;
V
OUT
= 350mV to (V
DD
- 500mV)
T
A
= +25
°
C
T
A
= -40
°
C to +125
°
C
T
A
= +25
°
C
-0.2
-0.1
90
115
dB
T
A
= -40
°
C to +125
°
C
90
90
90
85
85
120
120
110
110
dB
dB
±1
±1
1000
V
DD
- 1.6
V
DD
- 1.7
4.4
1.0
±350
±750
±6
±150
±150
TYP
MAX
5.5
UNITS
V
mA
µA
µV
µV/°C
pA
pA
GΩ
V
Shutdown mode (SHDN = V
SS
) (Note 2)
V
OS
TC
VOS
I
B
I
OS
R
IN
V
CM
T
A
= +25
°
C
T
A
= -40
°
C to +125
°
C
Common-Mode Rejection Ratio
CMRR
Power-Supply Rejection Ratio
PSRR
2
Maxim Integrated
MAX4475–MAX4478/MAX4488/MAX4489
SOT23, Low-Noise, Low-Distortion,
Wide-Band, Rail-to-Rail Op Amps
DC ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +5V, V
SS
= 0V, V
CM
= 0V, V
OUT
= V
DD
/2, R
L
tied to V
DD
/2,
SHDN
= V
DD
, T
A
= -40°C to +125°C, unless otherwise noted.
Typical values are at T
A
= +25°C.) (Notes 1, 2)
PARAMETER
SYMBOL
CONDITIONS
|V
IN+
- V
IN-
|
≥
10mV,
R
L
= 10kΩ to V
DD
/2
Output Voltage Swing
V
OUT
|V
IN+
- V
IN-
|
≥
10mV,
R
L
= 1kΩ to V
DD
/2
|V
IN+
- V
IN-
|
≥
10mV,
R
L
= 500Ω to V
DD
/2
Output Short-Circuit Current
Output Leakage Current
SHDN
Logic Low
SHDN
Logic High
SHDN
Input Current
Input Capacitance
C
IN
I
SC
I
LEAK
V
IL
V
IH
SHDN
= V
SS
to V
DD
0.7 x V
DD
0.01
10
1
Shutdown mode (SHDN = V
SS
),
V
OUT
= V
SS
to V
DD
V
DD
- V
OH
V
OL
- V
SS
V
DD
- V
OH
V
OL
- V
SS
V
DD
- V
OH
V
OL
- V
SS
MIN
TYP
10
10
80
50
100
80
48
±0.001
±1.0
0.3 x V
DD
MAX
45
40
200
150
300
250
mA
µA
V
V
µA
pF
mV
UNITS
AC ELECTRICAL CHARACTERISTICS
(V
DD
= +5V, V
SS
= 0V, V
CM
= 0V, V
OUT
= V
DD
/2, R
L
tied to V
DD
/2,
SHDN
= V
DD
, T
A
= +25°C.)
PARAMETER
Gain-Bandwidth Product
Slew Rate
Full-Power Bandwidth (Note 5)
Peak-to-Peak Input Noise Voltage
e
n(P-P)
SYMBOL
GBWP
SR
CONDITIONS
MAX4475–MAX4478
MAX4488/MAX4489
MAX4475–MAX4478
MAX4488/MAX4489
MAX4475–MAX4478
MAX4488/MAX4489
f = 0.1Hz to 10Hz
f = 10Hz
Input Voltage-Noise Density
Input Current-Noise Density
e
n
i
n
f = 1kHz
f = 30kHz
f = 1kHz
V
OUT
= 2V
P-P
,
A
V
= +1V/V
(MAX4475–MAX4478),
R
L
= 10kΩ to GND
V
OUT
= 2V
P-P
,
A
V
= +1V/V
(MAX4475–MAX4478),
R
L
= 1kΩ to GND
V
OUT
= 2V
P-P
,
A
V
= +5V/V
(MAX4488/MAX4489),
R
L
= 10kΩ to GND
f = 1kHz
f = 20kHz
f = 1kHz
f = 20kHz
f = 1kHz
f = 20kHz
A
V
= +1V/V
A
V
= +5V/V
A
V
= +1V/V
A
V
= +5V/V
A
V
= +1V/V
A
V
= +5V/V
MIN
TYP
10
42
3
10
0.4
1.25
260
21
4.5
3.5
0.5
0.0002
0.0007
0.0002
0.001
0.0004
0.0006
%
fA/√Hz
nV/√Hz
MAX
UNITS
MHz
V/µs
MHz
nV
P-P
Total Harmonic Distortion Plus
Noise (Note 6)
THD + N
Maxim Integrated
3
MAX4475–MAX4478/MAX4488/MAX4489
SOT23, Low-Noise, Low-Distortion,
Wide-Band, Rail-to-Rail Op Amps
MAX4475–MAX4478/MAX4488/MAX4489
AC ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +5V, V
SS
= 0V, V
CM
= 0V, V
OUT
= V
DD
/2, R
L
tied to V
DD
/2,
SHDN
= V
DD
, T
A
= +25°C.)
PARAMETER
Total Harmonic Distortion Plus
Noise (Note 6)
Capacitive-Load Stability
Gain Margin
Phase Margin
Settling Time
Delay Time to Shutdown
Enable Delay Time from Shutdown
Power-Up Delay Time
t
SH
t
EN
V
OUT
= 2.5V, V
OUT
settles to 0.1%
V
DD
= 0 to 5V step, V
OUT
stable to 0.1%
GM
ΦM
MAX4475–MAX4478, A
V
= +1V/V
MAX4488/MAX4489, A
V
= +5V/V
To 0.01%, V
OUT
= 2V step
SYMBOL
CONDITIONS
V
OUT
= 2V
P-P
,
A
V
= +5V/V
(MAX4488/MAX4489),
R
L
= 1kΩ to GND
No sustained oscillations
f = 1kHz
f = 20kHz
MIN
TYP
0.0005
%
0.008
200
12
70
80
2
1.5
10
13
pF
dB
degrees
µs
µs
µs
µs
MAX
UNITS
THD + N
All devices are 100% tested at T
A
= +25°C. Limits over temperature are guaranteed by design.
SHDN
is available on the MAX4475/MAX4488 only.
Guaranteed by the PSRR test.
Guaranteed by design.
Full-power bandwidth for unity-gain stable devices (MAX4475–MAX4478) is measured in a closed-loop gain of +2V/V to
accommodate the input voltage range, V
OUT
= 4V
P-P
.
Note 6:
Lowpass-filter bandwidth is 22kHz for f = 1kHz and 80kHz for f = 20kHz. Noise floor of test equipment = 10nV/√Hz.
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
Typical Operating Characteristics
(V
DD
= +5V, V
SS
= 0V, V
CM
= 0V, V
OUT
= V
DD
/2, R
L
tied to V
DD
/2, input noise floor of test equipment =10nV/√Hz for all distortion
measurements, T
A
= +25°C, unless otherwise noted.)
INPUT OFFSET VOLTAGE DISTRIBUTION
MAX4475-8 toc1
OFFSET VOLTAGE vs. TEMPERATURE
MAX4475 toc02
INPUT OFFSET VOLTAGE
vs. INPUT COMMON-MODE VOLTAGE
MAX4475 toc03
18
16
PERCENTAGE OF UNITS (%)
14
12
10
8
6
4
2
0
-50 -40 -30 -20 -10 0 10 20 30 40 50
V
OS
(µV)
250
200
INPUT OFFSET VOLTAGE (µV)
150
100
50
0
-50
-100
-150
-200
-250
-50
V
COM
= 0V
50
INPUT OFFSET VOLTAGE (µV)
40
30
20
V
DD
= 3V
10
0
V
DD
= 5V
-25
0
25
50
75
100
125
-0.5
0.5
1.5
2.5
3.5
4.5
TEMPERATURE (°C)
INPUT COMMON-MODE VOLTAGE (V)
4
Maxim Integrated
MAX4475–MAX4478/MAX4488/MAX4489
SOT23, Low-Noise, Low-Distortion,
Wide-Band, Rail-to-Rail Op Amps
Typical Operating Characteristics (continued)
(V
DD
= +5V, V
SS
= 0V, V
CM
= 0V, V
OUT
= V
DD
/2, R
L
tied to V
DD
/2, input noise floor of test equipment =10nV/√Hz for all distortion
概述： 介绍一种CAN-bus网络与以太网连接，构成一个中型远程监控/数据传输网络的方法。
CAN（Controller Area Network——控制器局域网）是一种由CAN控制器组成的高性能串行数据局域通信网络，是国际上应用最广泛的现场总线之一。它最早由德国Bosch公司于1984年推出，最初用于汽车内部测量与执行部件之间的数据通信。CAN-bus总线模型符合OSI的7层结构...[详细]
实时操作系统RTOS
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
