MAX4376FAUK-T ,Single/Dual/Quad High-Side Current-Sense Amplifiers with Internal GainApplicationsOUT15 RS-Notebook Computers Portable/Battery-PoweredSystemsMAX4376Current-Limited Power ..
MAX4376HAUK/V+T ,Single/Dual/Quad High-Side Current-Sense Amplifiers with Internal GainApplicationsTOP VIEW+Notebook Computers Portable/Battery-PoweredOUT1 5 RS-SystemsCurrent-Limited Po ..
MAX4376HAUK+ ,Single/Dual/Quad High-Side Current-Sense Amplifiers with Internal GainELECTRICAL CHARACTERISTICS(V = 0 to 28V, V = (V - V ) = 0V, V = +3.0V to +28V, R = ∞, T = T to T un ..
MAX4376HAUK+T ,Single/Dual/Quad High-Side Current-Sense Amplifiers with Internal Gain MAX4376/MAX4377/MAX4378Single/Dual/Quad, High-Side Current-SenseAmplifiers with Internal Gain
MAX4376TASA ,Single/Dual/Quad High-Side Current-Sense Amplifiers with Internal GainApplicationsOUT15 RS-Notebook Computers Portable/Battery-PoweredSystemsMAX4376Current-Limited Power ..
MAX4376TASA+ ,Single/Dual/Quad High-Side Current-Sense Amplifiers with Internal GainFeaturesThe MAX4376/MAX4377/MAX4378 single, dual, and ♦ Low-Cost, Single/Dual/Quad, High-Side Curre ..
MAX8211MJA ,Microprocessor Voltage Monitors with Programmable Voltage DetectionELECTRICAL CHARACTERISTICS(V+ = 5V, T = +25°C, unless otherwise noted.)AMAX8211 MAX8212PARAMETER SY ..
MAX8211MSA/PR ,Microprocessor Voltage Monitors with Programmable Voltage DetectionApplicationsMAX8211EJA -40°C to +85°C 8 CERDIPµP Voltage MonitoringMAX8211ETY -40°C to +85°C 8 TO-9 ..
MAX8211MTV/883B ,Microprocessor Voltage Monitors with Programmable Voltage DetectionELECTRICAL CHARACTERISTICS(V+ = 5V, T = +25°C, unless otherwise noted.)AMAX8211 MAX8212PARAMETER SY ..
MAX8212CPA ,Microprocessor Voltage Monitors with Programmable Voltage DetectionGeneral Description ________
MAX8212CSA ,Microprocessor Voltage Monitors with Programmable Voltage Detectionapplications.The use of CMOS technology has several advantages.The quiescent supply current is much ..
MAX8212CSA ,Microprocessor Voltage Monitors with Programmable Voltage DetectionELECTRICAL CHARACTERISTICS (continued)(V+ = 5V, T = +25°C, unless otherwise noted.)AMAX8211 MAX8212 ..
MAX4376FAUK-T-MAX4376TASA-MAX4377FAUA-MAX4377HAUA-MAX4377TAUA-MAX4378FASD-MAX4378FAUD-MAX4378TAUD
Single/Dual/Quad High-Side Current-Sense Amplifiers with Internal Gain
MAX4376/MAX4377/MAX4378
Single/Dual/Quad High-Side Current-Sense
Amplifiers with Internal Gain19-1781; Rev 2; 10/00
General DescriptionThe MAX4376/MAX4377/MAX4378 single, dual, and
quad precision high-side current-sense amplifiers are
available in space-saving packages. They feature
buffered voltage outputs that eliminate the need for
gain-setting resistors and are ideal for today’s notebook
computers, cell phones, and other systems where cur-
rent monitoring is critical. These precision devices are
offered in three fixed-gain versions of 20, 50, and 100:
GAINSUFFIXTF
100 H
For example, MAX4376TAUK is a single high-side
amplifier with a gain of 20.
High-side current monitoring is especially useful in bat-
tery-powered systems since it does not interfere with
the ground path of the battery charger. The input com-
mon-mode range of 0 to +28V is independent of the
supply voltage and ensures that the current-sense
feedback remains viable even when connected to a
battery pack in deep discharge.
The full-scale current reading can be set by choosing
the appropriate voltage gain and external-sense resis-
tor. This capability offers a high level of integration and
flexibility, resulting in a simple and compact current-
sense solution.
The MAX4376/MAX4377/MAX4378 operate over a sup-
ply voltage range of +3V to +28V, draw 1mA of supply
current per amplifier, and operate over the full automo-
tive temperature range of -40°C to +125°C. These
devices have a wide bandwidth of 2MHz, making them
suitable for use inside battery-charger control loops.
The buffered outputs drive up to 2mA of output current
into a ground-referenced load.
The MAX4376 is available in a tiny 5-pin SOT23 pack-
age. The MAX4377/MAX4378 are available in space-
saving 8-pin µMAX and 14-pin TSSOP packages,
respectively.
Applications
FeaturesLow-Cost Single/Dual/Quad High-Side Current-
Sense Amplifiers±0.5% Typical Full-Scale Accuracy+3V to +28V Supply OperationAdjustable Current-Sense Capability with External
Sense ResistorBuffered Output Voltage with 2mA Drive1mA (typ) Supply Current 2.0MHz Bandwidth (Gain = +20V/V)Automotive Temperature Range (-40°C to +125°C)Full 0 to 28V Common-Mode Range, Independent
of Supply VoltageThree Gain Versions Available
+20V/V (MAX437_T)
+50V/V (MAX437_F)
+100V/V (MAX437_H)Available in Space-Saving 5-pin SOT23 (Single),
8-pin µMAX (Dual), and 14-pin TSSOP (Quad)
Ordering InformationNotebook Computers
Current-Limited Power
Supplies
Fuel Gauges in PC
General-System/Board-
Level Current Monitoring
Battery Chargers
Portable/Battery-Powered
Systems
Cell Phones
Smart Battery Packages
Automotive Current Detect
Power Management
Systems
PA Bias Control
Pin Configurations
MAX4376/MAX4377/MAX4378
Single/Dual/Quad High-Side Current-Sense
Amplifiers with Internal Gain
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS(VRS+= 0 to 28V, VSENSE= (VRS+- VRS-) = 0, VCC= +3.0V to +28V, RL= ∞, TA= TMINto TMAX,unless otherwise noted. Typical val-
ues are at TA= 25°C.) (Note 1)
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.
VCC, RS+, RS- to GND...........................................-0.3V to +30V
OUT to GND...............................................-0.3V to (VCC + 0.3V)
Differential Input Voltage (VRS+- VRS- ).................................±8V
Output Short Circuit to VCC........................................Continuous
Output Short Circuit to GND.....................................................1s
Current into Any Pin..........................................................±20mA
Continuous Power Dissipation (TA= +70°C)
5-pin SOT23 (derate 7.1mW/°C above +70°C)............571mW
8-pin µMAX (derate 4.5mW/°C above +70°C).............362mW
8-pin SO (derate 5.88mW/°C above +70°C)................471mW
14-pin SO (derate 8.33mW/°C above +70°C)..............667mW
14-pin TSSOP (derate 9.1mW/°C above +70°C).........727mW
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
MAX4376/MAX4377/MAX4378
Single/Dual/Quad High-Side Current-Sense
Amplifiers with Internal Gain
ELECTRICAL CHARACTERISTICS (continued)(VRS+= 0 to 28V, VSENSE= (VRS+- VRS-) = 0, VCC= +3.0V to +28V, RL= ∞, TA= TMINto TMAX,unless otherwise noted. Typical val-
ues are at TA= 25°C.) (Note 1)
Note 3:6.25mV = 1/16 of 100mV full-scale sense voltage.
Note 4:VSENSEsuch that VOUTis in saturation.
MAX4376/MAX4377/MAX4378
Single/Dual/Quad High-Side Current-Sense
Amplifiers with Internal GainSUPPLY CURRENT (PER AMPLIFIER)
vs. SUPPLY VOLTAGE
MAX4376/7/8 toc01
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
SUPPLY CURRENT (PER AMPLIFIER)
vs. TEMPERATURE
MAX4376/7/8 toc02
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
TOTAL OUTPUT ERROR
vs. SUPPLY VOLTAGE (VSENSE = 100mV)
MAX4376/7/8 toc03
SUPPLY VOLTAGE (V)
TOTAL OUTPUT ERROR (%)
TOTAL OUTPUT ERROR
vs. SUPPLY VOLTAGE (VSENSE = 6.25mV)MAX4376/7/8 toc04
TOTAL OUTPUT ERROR (%)
SUPPLY VOLTAGE (V)
TOTAL OUTPUT ERROR
vs. COMMON-MODE VOLTAGE
MAX4376/7/8 toc05
TOTAL OUTPUT ERROR (%)
GAIN ACCURACY
vs. TEMPERATURE
MAX4376/7/8 toc06
TEMPERATURE (°C)
GAIN ACCURACY (%)
Typical Operating Characteristics
(VCC= VRS+ = 12V, VSENSE = 100mV, TA= +25°C.)
MAX4376/MAX4377/MAX4378
Single/Dual/Quad High-Side Current-Sense
Amplifiers with Internal Gain
Typical Operating Characteristics (continued)(VCC= VRS+ = 12V, VSENSE = 100mV, TA= +25°C.)
MAX4376/MAX4377/MAX4378
Single/Dual/Quad High-Side Current-Sense
Amplifiers with Internal Gain2µs/div
MAX4376H
LARGE-SIGNAL TRANSIENT RESPONSE
(VSENSE = 6mV to 100mV)(45mV/div)
OUT
(3V/div)
6mV
100mV
10V
0.6V
MAX4376 toc14
1.E+041.E+071.E+061.E+05
SMALL-SIGNAL GAIN
vs. FREQUENCYMAX4376/7/8 toc15
FREQUENCY (Hz)
GAIN (dB)
TIME (500ns)
OVERDRIVE RESPONSE
AV = +20V/V(200mV/div)
OUT
(2V/div)
350mV
750mV
VOH
MAX4376/7/8 toc16
OUTPUT LOW
vs. TEMPERATURE
MAX4376/7/8 toc17
TEMPERATURE (°C)
OUTPUT LOW (mV)
Typical Operating Characteristics (continued)
(VCC= VRS+ = 12V, VSENSE = 100mV, TA= +25°C.)
