MAX9643_V01 [MAXIM]
60V High-Speed Precision Current-Sense Amplifier;
| 型号： | MAX9643_V01 |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | 60V High-Speed Precision Current-Sense Amplifier |
| 文件： | 总12页 (文件大小：927K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
EVALUATION KIT AVAILABLE
MAX9643
60V High-Speed Precision Current-Sense Amplifier
General Description
Benefits and Features
● Supports High-Voltage Applications
The MAX9643 is a high-speed 60V precision unidirec-
tional current-sense amplifier ideal for a wide variety of
power-supply control applications. Its high signal band-
width allows its use within DC-DC switching converter
power-supply control loops with minimal phase delay.
• Wide Input V = -1.5V to +60V
CM
● Delivers High-Speed Operation
• 15MHz Bandwidth
● Increases System Accuracy
The IC also features 130µV (max) precision input offset
voltage, allowing small sense resistors to be used in
applications where efficiency is important and when wide
dynamic-range current measurement is needed.
• Precision V
= 130μV (max)
OS
● -40°C to +125°C Specified Temperature Range
High DC CMRR and AC CMRR make it easy to use in
a wide variety of aggressive environments. The device
is available in fixed gains of 2.5V/V and 10V/V. It is also
available in a small, 8-pin TDFN (2mm x 3mm) package
and is rated over the -40°C to +125°C temperature range.
Ordering Information appears at end of data sheet.
For related parts and recommended products to use with this part, refer
to www.maximintegrated.com/MAX9643.related.
Applications
● Industrial Power Supplies
● GSM Base Station Power Supply
● High-Brightness LED Control
● H-Bridge Motor Control
Typical Operating Circuit
RS+
RS-
CP1
CP2
BOOST
POWER-SUPPLY
CONTROL
LOAD
OUT
V
CC
V
EE
GND
MAX9643
19-5889; Rev 4; 4/15
MAX9643
60V High-Speed Precision Current-Sense Amplifier
Absolute Maximum Ratings
RS+ to GND, RS- to GND (Note 1)........................-3.5V to +65V
RS+ to RS-........................................................................... ±15V
CP2 to GND .............................................. (V - 0.3V) to +0.3V
EE
Short-Circuit Duration.................................................Continuous
Continuous Input Current into Any Pin..............................±20mA
ESD on RS+, RS-........................................................±4kV HBM
ESD on All Other Pins.................................................±2kV HBM
Maximum Power Dissipation
V
to GND............................................................-0.3V to +40V
CC
V
> 4.5V
CC
OUT to GND......................................................-0.3V to +4.5V
to GND.........................................................+0.3V to -5V
V
EE
CP1 to GND......................................................-0.3V to +4.5V
≤ 4.5V
TDFN-EP (derate 16.7mW/°C at +70°C).................1333.3mW
Operating Temperature Range......................... -40°C to +125°C
Junction Temperature.......................................................+150°C
Lead Temperature (10s, soldering)...................................+300°C
Soldering Temperature (reflow)........................................+260°C
V
CC
OUT to GND......................................... -0.3V to (V
+ 0.3V)
+ 0.3V)
+ 0.3V)
CC
CC
V
to GND....................................... +0.3V to (-V
EE
CP1 to GND......................................... -0.3V to (V
CC
Note 1: Voltages below -3.5V are allowed, as long as the input current is limited to 5mA by an external resistor.
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.
(Note 2)
Package Thermal Characteristics
TDFN
Junction-to-Ambient Thermal Resistance (θ )...........60°C/W
JA
Junction-to-Case Thermal Resistance (θ )................11°C/W
JC
Note 2: 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.
Electrical Characteristics
(V
= 5V, V
= V
= 12V, T = -40°C to +125°C, unless otherwise noted.) (Note 3)
CC
RS+
RS- A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V
DC CHARACTERISTICS
V
V
≥ 5V, guaranteed by CMRR test,
CC
SENSE
-1.5
+60
60
≤ 100mV
Input Common-Mode Voltage
Range
V
, V
RS+ RS-
V
V
< 5V, guaranteed by CMRR test,
3.5 -
CC
SENSE
≤ 100mV
V
CC
T
= +25°C
10
130
650
400
A
Input Offset Voltage (Notes 4, 5)
V
-40°C < T < +125°C
µV
OS
A
+10°C < T < +85°C
A
-1.5V ≤ V
≤ 60V, T = +25°C
120
110
130
Common-Mode Rejection Ratio
(Note 5)
CM
CM
A
CMRR
dB
dB
µA
-1.5V ≤ V
≤ 60V, -40°C ≤ T ≤ +125°C
A
CMRR vs. Frequency (Note 5)
Input Bias Current
AC CMRR f = 100kHz
90
35
T
= +25°C
60
60
A
I
, I
RS+ RS-
-40°C < T < +125°C
A
Input Bias Current, V
= 0V,
CC
I
, I
25
µA
µA
RS+ RS
V
= V
= 60V
RS+
RS-
T
= +25°C
0.02
0.65
0.65
0.8
A
Input Offset Current (Note 6)
I
- I
+10°C < T < +85°C
RS+ RS- A
-40°C < T < +125°C
A
Maxim Integrated
│ 2
www.maximintegrated.com
MAX9643
60V High-Speed Precision Current-Sense Amplifier
Electrical Characteristics* (continued)
(V
= 5V, V
= V
= 12V, T = -40°C to +125°C, unless otherwise noted.) (Note 3)
CC
RS+
RS- A
PARAMETER
SYMBOL
CONDITIONS
MIN
100
400
300
TYP
MAX
UNITS
V
V
< 2V
CM
Maximum Sense Voltage Before
Input Saturation
FS
MAX9643T
MAX9643U
mV
≥ 2V
CM
MAX9643T
MAX9643U
2.5
10
Voltage Gain (Note 4)
V/V
%
T
= +25°C
0.06
0.5
0.6
A
Voltage Gain Error (Note 4)
AC CHARACTERISTICS
Signal Bandwidth
GE
-40°C < T < +125°C
A
V
V
V
V
= 25mV
= 25mV
+ 2mV , MAX9643T
15
10
SENSE
DC
P-P
BW
SR
MHz
+ 2mV , MAX9643U
SENSE
DC
P-P
Slew Rate
= 10mV to 110mV
12
V/µs
ns
OUT
Delay from Output Saturation to V
= 0 to 20mV
100
OL
SENSE
Delay from Input Saturation and
Delay from Output Saturation to V
V
= 10V to 10mV
1
µs
SENSE
OH
OUTPUT CHARACTERISTICS
Output Short-Circuit Current
I
3.39
0.2
mA
SC
I
I
I
I
I
I
I
I
I
I
I
I
= 100µA sink, T = +25°C
1
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
A
= 100µA sink, -40°C < T < +125°C
2.2
1.2
10
10
4
A
Output-Voltage Low (MAX9643T)
(Note 5)
V
= 100µA sink, +10°C < T < +85°C
mV
mV
OL
A
= 1mA sink, T = +25°C
0.6
0.5
A
= 1mA sink, -40°C < T < +125°C
A
= 100µA sink, T = +25°C
A
= 100µA sink, -40°C < T < +125°C
8.8
4.8
10
10
A
Output-Voltage Low (MAX9643U)
(Note 5)
V
= 100µA sink, +10°C < T < +85°C
OL
A
= 1mA sink, T = +25°C
0.6
30
A
= 1mA sink, -40°C < T < +125°C
A
= 1mA source, V
= 1mA source, V
< 4.5V
V
- 1.3
CC
CC
Output-Voltage High (Note 7)
Capacitive Drive Capability
V
V
OH
≥ 4.5V
3.2
CC
CL
R
= Open, no sustained oscillation
pF
LOAD
Maxim Integrated
│ 3
www.maximintegrated.com
MAX9643
60V High-Speed Precision Current-Sense Amplifier
Electrical Characteristics* (continued)
(V
= 5V, V
= V
= 12V, T = -40°C to +125°C, unless otherwise noted.) (Note 3)
CC
RS+
RS- A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
POWER-SUPPLY CHARACTERISTICS
Power Supply
V
Guaranteed by PSRR
= 2.7V to 36V, V
2.7
107
100
36
V
CC
V
= 10mV,
SENSE
CC
125
Power-Supply Rejection Ratio
(Note 5)
T
= +25°C
PSRR
A
dB
-40°C < T < +125°C
A
T
= +25°C
1000
4
1400
1600
A
Quiescent Supply Current
Charge-Pump Current
I
µA
CC
-40°C < T < +125°C
A
I
DV = 500mV
mA
EE
EE
Note 3: All devices are 100% production tested at T = +25°C. Temperature limits are guaranteed by design and/or characterization.
A
Note 4: Gain and offset voltage are calculated based on two point measurements: V
= 10mV and V
= 100mV.
SENSE1
SENSE2
Note 5: V , V , CMRR, and PSRR are measured with the charge pump off.
OS OL
Note 6: Guaranteed by design and/or characterization.
Note 7: The maximum V
of the MAX9643T is 400mV. With the gain = 2.5V/V, the output swing high is not applicable to the
SENSE
MAX9643T.
Maxim Integrated
│ 4
www.maximintegrated.com
MAX9643
60V High-Speed Precision Current-Sense Amplifier
Typical Operating Characteristics
(V
= 5V, V
= V
= 12V, T = -40°C to +125°C, unless otherwise noted. All devices are 100% production tested at T = +25°C.
CC
RS+
RS- A A
Temperature limits are guaranteed by design and/or characterization.)
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
SUPPLY CURRENT
vs. TEMPERATURE
INPUT OFFSET VOLTAGE HISTOGRAM
40
35
30
25
20
15
10
5
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0
-20 -15 -10 -5
0
5
10 15 20 25 30
0
10
20
30
40
-50 -25
0
25
50
75 100 125
INPUT OFFSET VOLTAGE (μV)
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
GAIN ERROR
vs. COMMON-MODE VOLTAGE
COMMON-MODE REJECTION RATIO
vs. FREQUENCY (V = 100mV)
GAIN ERROR vs. TEMPERATURE
CM_AC
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0
0
-20
-40
-60
-80
-100
-120
-140
-10
0
10
20
30
40
50
60
-50 -25
0
25
50
75 100 125
1
10
100
1000 10,000 100,000
COMMON-MODE VOLTAGE (V)
TEMPERATURE (°C)
FREQUENCY (kHz)
Maxim Integrated
│ 5
www.maximintegrated.com
MAX9643
60V High-Speed Precision Current-Sense Amplifier
Typical Operating Characteristics (continued)
(V
= 5V, V
= V
= 12V, T = -40°C to +125°C, unless otherwise noted. All devices are 100% production tested at T = +25°C.
CC
RS+
RS-
A
A
Temperature limits are guaranteed by design and/or characterization.)
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
SMALL SIGNAL vs. FREQUENCY
(MAX9643T)
OUTPUT-VOLTAGE HIGH
vs. OUTPUT SOURCE CURRENT
0
-20
20
18
16
14
12
10
8
6
4
2
0
-2
-4
-6
-8
-10
4.0
3.9
3.8
3.7
3.6
3.5
3.4
3.3
3.2
3.1
3.0
-40
-60
-80
-100
-120
-140
1
10
100
1000
10,000
1
10
100
1000 10,000 100,000
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
OUTPUT SOURCE CURRENT (mA)
FREQUENCY (kHz)
FREQUENCY (kHz)
OUTPUT-VOLTAGE LOW
vs. OUTPUT SINK CURRENT
SMALL-SIGNAL TRANSIENT RESPONSE
LARGE-SIGNAL TRANSIENT RESPONSE
MAX9643 toc11
MAX9643 toc12
600
500
400
300
200
100
0
MAX9643T
MAX9643T
OUTPUT
10mV/div
OUTPUT
100mV/div
GND
GND
INPUT
10mV/div
INPUT
100mV/div
GND
GND
200ns/div
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
OUTPUT SINK CURRENT (mA)
100ns/div
Maxim Integrated
│ 6
www.maximintegrated.com
MAX9643
60V High-Speed Precision Current-Sense Amplifier
Typical Operating Characteristics (continued)
(V
= 5V, V
= V
= 12V, T = -40°C to +125°C, unless otherwise noted. All devices are 100% production tested at T = +25°C.
CC
RS+
RS- A A
Temperature limits are guaranteed by design and/or characterization.)
OUTPUT HIGH-SATURATION RECOVERY
OUTPUT LOW-SATURATION RECOVERY
STARTUP DELAY
(V = 200mV)
RESPONSE (INPUT SIGNAL = 4V TO 100mV)
RESPONSE (INPUT SIGNAL = 0V TO 20mV)
SENSE
MAX9643 toc13
MAX9643 toc14
MAX9643 toc15
MAX9643T
MAX9643T
V
MAX9643T
CC
INPUT
20mV/div
5V/div
INPUT
2V/div
GND
V
RS_
V
RS_
OUTPUT
500mV/div
OUTPUT
1V/div
OUTPUT
50mV/div
GND
GND
GND
1µs/div
200ns/div
100µs/div
INPUT SENSE VOLTAGE SATURATION
INPUT SENSE VOLTAGE SATURATION
(V = 12V)
CM
(V = 1.5V)
CM
MAX9643 toc16
MAX9643 toc17
MAX9643T
MAX9643T
V
SENSE
1V/div
V
SENSE
500mV/div
GND
GND
OUTPUT
1V/div
OUTPUT
200mV/div
GND
GND
200µs/div
200µs/div
COMMON MODE
CHARGE-PUMP NOISE
(V = 0V TO 10V)
CM
MAX9643 toc18
MAX9643 toc19
MAX9643T
MAX9643T
CH2
CH1
V
CM
CP1
2V/div
5V/div
GND
GND
OUTPUT
200mV/div
OUTPUT
20mV/div
GND
1µs/div
20ns/div
Maxim Integrated
│ 7
www.maximintegrated.com
MAX9643
60V High-Speed Precision Current-Sense Amplifier
Pin Configuration
TOP VIEW
OUT
8
V
RS- RS+
CC
7
6
5
MAX9643
EP
+
1
2
3
4
GND
V
CP1 CP2
EE
TDFN
Pin Description
PIN
1
NAME
GND
FUNCTION
Ground
2
V
Charge-Pump Output. Connect 1µF to GND.
Positive Terminal of 1µF Flying Capacitor
Negative Terminal of 1µF Flying Capacitor
Positive Sense Resistor Input
EE
3
CP1
CP2
RS+
RS-
4
5
6
Negative Sense Resistor Input
Power Supply
7
V
CC
8
OUT
EP
Output
—
Exposed Pad. Must be externally connected to GND.
Maxim Integrated
│ 8
www.maximintegrated.com
MAX9643
60V High-Speed Precision Current-Sense Amplifier
Input Common-Mode Voltage Range
Detailed Description
The use of an internal negative voltage rail for its input
stage allows the current-sense amplifier to extend its
input common-mode voltage below ground without any
crossover inaccuracies. Crossover problems with preci-
sion can occur with alternate architectures of current-
sense amplifiers that use two different input differential
stages to cover the entire operating common-mode volt-
age range (either npn/pnp transistors or pnp transistor
and resistor-based input stages).
The MAX9643 is a high-speed precision current-sense
amplifier ideal for a wide variety of high-performance
industrial power-supply applications. The device’s low
input offset voltage, tight gain error, and low temperature
drift characteristics allow the use of smallsense resistors
for current measurements to improve power-supply con-
version efficiency and accuracy of measurements. Its fast
response allows it to react quickly to switching currents as
is common in power-supply circuits, and makes it possible
to be used as part of control loops.
The minimum input common-mode voltage capability is
dependent on the internal negative voltage rail generated
by the charge pump. Since this negative voltage rail goes
The unidirectional high-side, current-sense amplifier also
features a wide -1.5V to +60V input common-mode
range. This feature allows monitoring of power-supply
load current even if the rail is shorted to ground. Highside
current monitoring does not interfere with the ground path
of the load being measured, making the IC particularly
useful in a wide range of high-reliability systems.
down at low values of V
(i.e., when under 5V), the
CC
minimum input common-mode voltage rail is also limited
at low V
.
CC
The negative input common-mode voltage specification
can be exceeded if the input current is limited to under
5mA. This is typically accomplished by using series input
resistors. The input ESD structure for negative input
common-mode voltages looks like 5 series-connected
diodes. Assuming an on-drop of 0.7V per diode, negative
The IC has been designed on a proprietary high-speed
complementary BiCMOS SOI process. This high-voltage
analog process is optimized for excellent AC dynamic per-
formance, ultra-low noise, wide operating voltage range,
and low-drift signal conditioning circuitry.
Applications Information
FROM R
SENSE
Internal Charge Pump
An internal charge pump on the part is utilized to provide
two attractive application features:
TO ADC
•
Input common-mode voltage range extends to 1.5V
below ground.
8
7
6
5
•
Output voltage range extends down to true ground.
A 250kHz internal charge pump is used to generate a
negative voltage rail to bias both the input stage and
output stage of the current-sense amplifier. Use a 1µF
ceramic capacitor between the CP1 and CP2 pins of the
IC, and ensure a tight layout to minimize loop area. Using
MAX9643
+
a 1µF ceramic capacitor from V
good low-noise performance.
to GND is essential to
EE
1
2
3
4
It is possible to also connect the V
pin directly to an
EE
external -5V power supply. Ensure that this voltage is
lower than the internally generated charge-pump voltage.
The -4.7V voltage is the minimum necessary to guarantee
the charge pump is turned off.
1µF
1µF
0.1µF
Figure 1. PCB Layout
The MAX9643 EV kit shows a good example layout. A
representation is shown in Figure 1.
Maxim Integrated
│ 9
www.maximintegrated.com
MAX9643
60V High-Speed Precision Current-Sense Amplifier
input voltage transients below -3.5V should be limited by
the use of input series resistors. For example, if an input
voltage transient or fault condition of -12V were to occur
in the application, use a resistor greater than 8.5V/5mA =
1700Ω. Use 2kΩ for margin.
Choosing the Sense Resistor
Choose R
based on the following criteria:
SENSE
•
Voltage loss: A high R
value causes the
SENSE
power-source voltage to reduce due to IR drop. For
minimal voltage loss, use the lowest R value.
SENSE
The maximum input common-mode voltage extends up to
•
Accuracy: A high R
value allows lower cur-
SENSE
60V over the entire V
range of 2.7V to 36V. It is recom-
CC
rents to be measured more accurately. This is because
input offset voltages become less significant when the
sense voltage is larger.
mended to shield the device from overvoltages above its
65V absolute maximum rating to protect the device.
Output Voltage Range
The internal negative voltage rail generated by the charge
pump is also used to bias the output stage of the current-
sense amplifier, allowing it to feature true V
formance. This feature allows small sense voltages to be
used and eases interface to other analog and mixed-signal
•
•
Efficiency and power dissipation: At high current
2
levels, the I R losses in R
can be significant.
SENSE
Take this into consideration when choosing the resistor
value and its power dissipation (wattage) rating. Also,
the sense resistor’s value might drift if it is allowed to
heat up excessively.
= 0V per-
OL
ICs. In reality, attaining true V
= 0V specification is usu-
OL
ally limited by the offset voltage of the current-sense ampli-
fier since V = V x gain, when input V = 0V.
Inductance: Keep inductance low if I
has a
SENSE
large high-frequency component. Because of the high
currents that flow through R , take care to elimi-
OUT OS SENSE
SENSE
In addition, the maximum output voltage of the IC is inter-
nally clamped to less than 5V even when it is powered
from a 40V rail. This allows easy interface to low-voltage
downstream circuitry without worrying about protecting
them from large input voltage transients or faults.
nate parasitic trace resistance from causing errors in
the sense voltage. Either use a four-terminal current-
sense resistor or use Kelvin (force and sense) PCB
layout techniques.
Power-Supply Bypassing and Grounding
Common Mode and Differential Filtering
When the AC common-mode signal with large amplitudes
For most applications, bypass V
to GND with a 0.1µF
CC
ceramic capacitor. In many applications, V
can be
CC
(>5V
for example) at high frequencies (> 1kHz for
connected to one of the current monitor terminals (R
P-P
S+
example) is present at the inputs, AC CMRR limitation
causes spikes at the output as shown in the Common
Mode graph in the Typical Operating Characteristics.
Application Note 3888: Performance of Current-Sense
Amplifiers with Input Series Resistors explains the way to
filter out these common-mode transients as seen by the
amplifier and filtering of the differential mode.
or R ). Because V
is independent of the monitored
S-
CC
voltage, V
can be connected to a separate regulated
CC
supply. There are no specific power-supply sequencing
issues to consider. The part can withstand 60V input
common-mode voltages even when V
= 0V, and main-
CC
tains a high input impedance in this application condition.
Chip Information
PROCESS: BiCMOS
Ordering Information
PIN-
GAIN
TEMP
PART
PACKAGE
(V/V)
RANGE
MAX9643TATA+
MAX9643UATA+
8 TDFN-EP*
8 TDFN-EP*
2.5
10
-40°C to +125°C
-40°C to +125°C
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed paddle.
Maxim Integrated
│ 10
www.maximintegrated.com
MAX9643
60V High-Speed Precision Current-Sense Amplifier
Package Information
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 TYPE
PACKAGE CODE
OUTLINE NO.
LAND PATTERN NO.
8 TDFN-EP
T823+1
21-0174
90-0091
Maxim Integrated
│ 11
www.maximintegrated.com
MAX9643
60V High-Speed Precision Current-Sense Amplifier
Revision History
REVISION REVISION
PAGES
DESCRIPTION
CHANGED
NUMBER
DATE
0
8/11
Initial release
—
Updated Electrical Characteristics and Typical Operating Characteristics. Added the
Common Mode and Differential Filtering section.
1
2
2/13
1/14
3, 5, 6, 9
1–3, 8
Revised the General Description, Benefits and Features, Electrical Characteristics,
and Internal Charge Pump sections.
3
4
10/14
4/15
Removed automotive reference from data sheet
1, 9
5
Revised Typical Operating Characteristics
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits)
shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
©
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
2015 Maxim Integrated Products, Inc.
│ 12
相关型号：
MAX9644EBS+TG45
Comparator, 1 Func, 15000ns Response Time, BICMOS, PBGA4, 1 X 1 MM, 0.60 MM HEIGHT, ROHS COMPLIANT, UCSP-4
MAXIM
MAX9644EUK+T
Comparator, 1 Func, 15000ns Response Time, BICMOS, PDSO5, ROHS COMPLIANT, MO-178AA, SOT-23, 5 PIN
MAXIM
©2020 ICPDF网 联系我们和版权申明