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MAX44284EAWT+T

current sense amplifiers max44284eawt+T

器件类别:模拟混合信号IC    放大器电路   

厂商名称:Maxim(美信半导体)

厂商官网:https://www.maximintegrated.com/en.html

器件标准:

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器件参数
参数名称
属性值
是否Rohs认证
符合
厂商名称
Maxim(美信半导体)
包装说明
VFBGA, BGA6,2X3,16
Reach Compliance Code
compliant
Factory Lead Time
6 weeks
放大器类型
OPERATIONAL AMPLIFIER
架构
VOLTAGE-FEEDBACK
最大平均偏置电流 (IIB)
0.08 µA
标称带宽 (3dB)
0.0004 MHz
25C 时的最大偏置电流 (IIB)
0.08 µA
最小共模抑制比
120 dB
标称共模抑制比
145 dB
频率补偿
NO
最大输入失调电流 (IIO)
0.05 µA
最大输入失调电压
40 µV
JESD-30 代码
R-PBGA-B6
长度
1.245 mm
低-偏置
NO
低-失调
YES
微功率
YES
功能数量
1
端子数量
6
最高工作温度
125 °C
最低工作温度
-40 °C
封装主体材料
PLASTIC
封装代码
VFBGA
封装等效代码
BGA6,2X3,16
封装形状
RECTANGULAR
封装形式
GRID ARRAY, VERY THIN PROFILE, FINE PITCH
包装方法
TR
峰值回流温度(摄氏度)
NOT SPECIFIED
功率
NO
可编程功率
NO
座面最大高度
0.69 mm
最大压摆率
0.0415 mA
供电电压上限
6 V
标称供电电压 (Vsup)
3.3 V
表面贴装
YES
技术
BICMOS
温度等级
AUTOMOTIVE
端子形式
BALL
端子节距
0.4 mm
端子位置
BOTTOM
处于峰值回流温度下的最长时间
NOT SPECIFIED
宽带
NO
宽度
0.845 mm
Base Number Matches
1
文档预览
Click
here
for production status of specific part numbers.
MAX44284
36V, Input Common-Mode, High-Precision,
Low-Power Current-Sense Amplifier
General Description
The MAX44284 is a high-side, current-sense amplifier
that operates with a 1.7V to 5.5V single supply and is
optimized for very low power operation with only 21µA of
quiescent current.
The MAX44284 offers precision accuracy specifications
of 2μV V
OS
and gain error of 0.05%. The device features
an input common-mode voltage range from -0.1V to
+36V. This current-sense amplifier has a voltage output
and is offered in four different gain versions.
The MAX44284 is offered in small 6-bump, 0.4mm-pitch
WLP (1.3mm x 0.9mm) and 6-pin SOT23 packages and is
specified for operation over the -40°C to +125°C automotive
temperature range.
Benefits and Features
● Supports Use of Small Current-Sense Resistors to
Improve Power-Supply Conversion Efficiency and
Measurement Accuracy
• Input Bias Current of 80nA (max)
Very Low 2μV Input Offset Voltage (MAX44284F/H)
• Extremely Low 50nV/°C Input Offset Tempco
Coefficient
-0.1V to +36V Wide Input Common-Mode Range
• Low 0.05% Gain Error
● Extends Battery Life
Low Supply Current of 21μA
• 1.7V to 5.5V Single Supply
• Shutdown Input (Independent of V
DD
)
● Four Fixed Gain Options Simplify Design
50V/V – MAX44284F
100V/V – MAX44284H
• 200V/V – MAX44284W
• 500V/V – MAX44284E
Applications
Smartphones and Tablets
Notebook Computers
DC-DC Current Sensing in Power Management
Portable-/Battery-Powered Systems
Medical Pulse Oximeters and Infusion Pumps
Base-Stations
Ordering Information
appears at end of data sheet.
Typical Application Circuit
I
LOAD
V
BATT
= UP TO 36V
RS+
RS-
R
SENSE
LOAD
V
DD
= 3.3V
OUT
MAX44284
V
DD
= 3.3V
µC
ADC
19-6862; Rev 8; 8/18
MAX44284
36V, Input Common-Mode, High-Precision,
Low-Power Current-Sense Amplifier
Absolute Maximum Ratings
V
DD
to GND ............................................................-0.3V to +6V
RS+, RS- to GND
..................................................-0.3V to +40V
RS+ to RS-
..........................................................................±40V
OUT,
SHDN
to GND ................................. -0.3V to (V
DD
+ 0.3V)
Continuous Input Current (any pin) ..................................±20mA
Continuous Power Dissipation (T
A
= +70°C)
WLP (derate 10.5mW/°C above +70°C) ......................840mW
SOT23 (derate 4.3mW/°C above +70°C) .................347.8mW
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.
Package Information
6 SOT23
PACKAGE CODE
Outline Number
Land Pattern Number
Thermal Resistance, Single-Layer Board:
Junction to Ambient - θ
JA
(C/W)
Junction to Case - θ
JC
(C/W)
Thermal Resistance, Multi-Layer Board
Junction to Ambient (θ
JA
) (C/W)
Junction to Case (θ
JC
) (C/W)
115
80
N/A
80
21-0058
90-0175
U6+1, U6+1A
6 WLP
PACKAGE CODE
Outline Number
Land Pattern Number
Thermal Resistance, Multi-Layer Board
Junction to Ambient (θ
JA
) (C/W)
Junction to Case (θ
JC
) (C/W)
95.15
N/A
21-0656
Refer to
Application Note 1891
W60A1+1
For the latest package outline information and land patterns (footprints), go to
www.maximintegrated.com/packages.
Note that a “+”,
“#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board.
For detailed information on package thermal considerations, refer to
www.maximintegrated.com/thermal-tutorial.
www.maximintegrated.com
Maxim Integrated
2
MAX44284
36V, Input Common-Mode, High-Precision,
Low-Power Current-Sense Amplifier
Electrical Characteristics
(V
DD
= 3.3V, V
CM
= 12V, V
SENSE
= V
FS
/2, V
FS
= (V
DD
- V
OH
- V
OL
)/Gain, V
SHDN
= V
DD
, R
L
= 10kΩ to GND, T
A
= -40°C to +125°C,
unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 2)
PARAMETER
POWER SUPPLY
Supply Voltage
Shutdown Supply Current
Supply Current
Power-Supply Rejection
Ratio
Shutdown Voltage Low
Shutdown Voltage High
DC CHARACTERISTICS
Input Common-Mode Voltage
Range
Common-Mode Rejection
Ratio (Note 5)
Input Bias Current
Input Offset Current
V
CM
Guaranteed by CMRR
-0.1V ≤ V
CM
≤ +36V, V
CM
= RS-
CMRR
I
RS+
,
I
RS-
I
OS
MAX44284F (T
A
= +25°C)
MAX44284F
(-40°C
≤T
A
≤ +125°C)
MAX44284H (T
A
= +25°C)
Input Offset Voltage (Note 3)
V
OS
MAX44284H
(-40°C
≤T
A
≤ +125°C)
MAX44284W (T
A
= +25°C)
MAX44284W
(-40°C
≤T
A
≤ +125°C)
MAX44284E (T
A
= +25°C)
MAX44284E
(-40°C
≤T
A
≤ +125°C)
TCV
OS
MAX44284F
Gain
G
MAX44284H
MAX44284W
MAX44284E
±15
±10
±2
+0.1V ≤ V
CM
≤ +36V, V
CM
= RS-
(Note 7)
-0.1
91.3
120
140
145
2
2
±2
80
50
±10
±28
±12
±28
±20.5
±38
±26
±40
50
50
100
200
500
V/V
nV°C
dB
nA
nA
+36
V
V
DD
I
SHDN
I
DD
PSRR
V
IL
V
IH
1.3
T
A
= +25°C, R
L
= ∞
-40°C ≤ T
A
≤ +125°C, R
L
= ∞
1.7V ≤ V
DD
≤ 5.5V, V
OUT
= 1V
100
110
0.55
Guaranteed by PSRR
1.7
0.3
21
5.5
0.8
31.2
41.5
V
μA
μA
dB
V
V
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
μV
Input Offset Voltage
Temperature Drift
www.maximintegrated.com
Maxim Integrated
3
MAX44284
36V, Input Common-Mode, High-Precision,
Low-Power Current-Sense Amplifier
Electrical Characteristics (continued)
(V
DD
= 3.3V, V
CM
= 12V, V
SENSE
= V
FS
/2, V
FS
= (V
DD
- V
OH
- V
OL
)/Gain, V
SHDN
= V
DD
, R
L
= 10kΩ to GND, T
A
= -40°C to +125°C,
unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MAX44284F (T
A
= +25°C)
MAX44284F
(-40°C
≤T
A
≤ +125°C)
MAX44284H (T
A
= +25°C)
Gain Error (Note 4)
GE
MAX44284H
(-40°C
≤T
A
≤ +125°C)
MAX44284W (T
A
= +25°C)
MAX44284W
(-40°C
≤T
A
≤ +125°C)
MAX44284E (T
A
= +25°C)
MAX44284E
(-40°C
≤T
A
≤ +125°C)
Output Voltage High
V
OH
V
OH
= V
DD
- V
OUT
,
R
L
= 10kW to GND
I
SOURCE
= 100μA
Output Voltage Low
Input Differential Impedance
Output Impedance
AC CHARACTERISTICS
MAX44284F
Small-Signal Bandwidth
BW
3dB
MAX44284H
MAX44284W
MAX44284E
Input Voltage-Noise Density
AC Common-Mode Rejection
Ratio
e
n
AC CMRR
f = 1kHz
f = 10kHz, 600mV
P-P
sinusoidal
waveform
3
1.8
1
0.4
150
80
nV/√Hz
dB
kHz
V
OL
No load
I
SINK
= 100µA
6
200
0.3
25
0.05
0.05
0.05
MIN
TYP
0.05
MAX
0.15
0.20
0.15
0.26
0.15
0.35
0.16
0.39
35
20
1
20
mV
MW
mW
%
UNITS
mV
www.maximintegrated.com
Maxim Integrated
4
MAX44284
36V, Input Common-Mode, High-Precision,
Low-Power Current-Sense Amplifier
Electrical Characteristics (continued)
(V
DD
= 3.3V, V
CM
= 12V, V
SENSE
= V
FS
/2, V
FS
= (V
DD
- V
OH
- V
OL
)/Gain, V
SHDN
= V
DD
, R
L
= 10kΩ to GND, T
A
= -40°C to +125°C,
unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
V
OUT
from 250mV to 2.5V,
Gain = 50, within 12-bit accuracy
V
OUT
from 250mV to 2.5V,
Gain = 100, within 12-bit
accuracy
V
OUT
from 250mV to 2.5V,
Gain = 200, within 12-bit
accuracy
V
OUT
from 250mV to 2.5V,
Gain = 500, within 12-bit
accuracy
Capacitive Load
C
L
R
ISO
= 0W
R
ISO
= 20W
MIN
TYP
1500
1500
µs
1800
MAX
UNITS
Settling Time
t
S
4000
500
2200
pF
Note 2:
All devices are 100% production tested at T
A
= +25°C. All temperature limits are guaranteed by design.
Note 3:
V
OS
is calculated by applying two values of V
SENSE
(10% of full-scale range to 90% of full-scale range).
Note 4:
Gain Error is calculated by applying two values of V
SENSE
(10% of full-scale range to 90% of full-scale range) and calculat-
ing the error of the slope, vs. the ideal.
Note 5:
CMRR measurement is done at V
OUT
= V
DD
/2 condition.
Note 6:
PSRR measurement is done at V
OUT
= 1V condition.
Note 7:
Parameter is guaranteed by design.
www.maximintegrated.com
Maxim Integrated
5
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参数对比
与MAX44284EAWT+T相近的元器件有:MAX44284WAUT+T、MAX44284EAUT+T、MAX44284WAWT+T。描述及对比如下:
型号 MAX44284EAWT+T MAX44284WAUT+T MAX44284EAUT+T MAX44284WAWT+T
描述 current sense amplifiers max44284eawt+T current sense amplifiers max44284waut+T current sense amplifiers max44284eaut+T current sense amplifiers max44284wawt+T
是否Rohs认证 符合 符合 符合 符合
厂商名称 Maxim(美信半导体) Maxim(美信半导体) Maxim(美信半导体) Maxim(美信半导体)
包装说明 VFBGA, BGA6,2X3,16 TSOP, TSOP6,.11,37 TSOP, TSOP6,.11,37 VFBGA, BGA6,2X3,16
Reach Compliance Code compliant compliant compliant compli
Factory Lead Time 6 weeks 6 weeks 16 weeks 6 weeks
JESD-30 代码 R-PBGA-B6 R-PDSO-G6 R-PDSO-G6 R-PBGA-B6
功能数量 1 1 1 1
端子数量 6 6 6 6
最高工作温度 125 °C 125 °C 125 °C 125 °C
最低工作温度 -40 °C -40 °C -40 °C -40 °C
封装主体材料 PLASTIC PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
封装代码 VFBGA TSOP TSOP VFBGA
封装等效代码 BGA6,2X3,16 TSOP6,.11,37 TSOP6,.11,37 BGA6,2X3,16
封装形状 RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
封装形式 GRID ARRAY, VERY THIN PROFILE, FINE PITCH SMALL OUTLINE, THIN PROFILE SMALL OUTLINE, THIN PROFILE GRID ARRAY, VERY THIN PROFILE, FINE PITCH
标称供电电压 (Vsup) 3.3 V 3.3 V 3.3 V 3.3 V
表面贴装 YES YES YES YES
技术 BICMOS BICMOS BICMOS BICMOS
温度等级 AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE
端子形式 BALL GULL WING GULL WING BALL
端子节距 0.4 mm 0.95 mm 0.95 mm 0.4 mm
端子位置 BOTTOM DUAL DUAL BOTTOM
Base Number Matches 1 1 1 -
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