MAX4377HAUA+ by Analog Devices

Single/Dual/Quad High-Side Current-Sense Amplifiers with Internal Gain

Status: Active
Series: MAX4377
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock
The 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 current monitoring is critical. These precision devices are offered in three fixed-gain versions of 20, 50, and 100: GAIN SUFFIX 20 T 50 F 100 H For example, MAX4376TAUK is a single high-side amplifier with a gain of 20. High-side current monitoring is especially useful in battery-powered systems since it does not interfere with the ground path of the battery charger. The input common-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 resistor. 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 supply voltage range of +3V to +28V, draw 1mA of supply current per amplifier, and operate over the full automotive 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 package. The MAX4377/MAX4378 are available in space-saving 8-pin µMAX® and 14-pin TSSOP packages, respectively.

Where to Buy

Prices starting from US$0.75

Distributor Stock
Logo for Newark
Newark Electronics
from US$0.75
50
in stock
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Logo for element14 Singapore
element14
from US$2.96
0
in stock
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Logo for Farnell UK
Farnell
from US$2.93
0
in stock
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Features

Low-Cost Single/Dual/Quad High-Side Current-Sense Amplifiers
±0.5% Typical Full-Scale Accuracy
+3V to +28V Supply Operation
Adjustable Current-Sense Capability with External Sense Resistor
Buffered Output Voltage with 2mA Drive
1mA (typ) Supply Current
2.0MHz Bandwidth (Gain = +20V/V)
Automotive Temperature Range (-40°C to +125°C)
High Accuracy +2V to +28V Common-Mode Range, Functional Down to 0V, Independent of Supply Voltage
Three Gain Versions Available +20V/V (MAX437_T) +50V/V (MAX437_F) +100V/V (MAX437_H)
+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)
AEC-Q100 Qualified, Refer to Ordering Information for the List of /V Parts

Specifications

VSENSE_FS (mV) (recomm.) 150
Output Format Voltage
CMVR (V) (min) 0
CMVR (V) (max) 28
VCC (V) (min) 3
VCC (V) (max) 28
ICC (µA) (typ) 1000
Bi-Dir. Curr. Sense No
Gain 100 V/V20 V/V50 V/V
Gain Accuracy @25°C (%) (max) 2.5
Oper. Temp. (°C) -40 to +125
Package/Pins SOIC (N)/8UMAX/8
BudgetaryPrice (See Notes) 1.5

Last 6 months Inventory & Pricing History

MAX4377HAUA+ - Integrated Circuits by Analog Devices

CURRENT SENSE AMPLIFIER 1.2MHZ UMAX-8

Semiconductors - ICs
> Amplifiers & Comparators
> Current Sense Amplifiers
Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

No. of Amplifiers 2 Amplifier
Input Bias Current 120µA
Amplifier Case Style µMAX
No. of Pins 8Pins
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Bandwidth 1.2MHz
Supply Voltage Min 3V
Supply Voltage Max 28V
Input Offset Voltage -
CMRR 90dB
Product Range -
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Last 6 months Inventory & Pricing History

Alternative Descriptions

Current Sense Amplifier, 1.2Mhz, Umax-8 | Newark Electronics
CURRENT SENSE AMPLIFIER, 1.2MHZ, UMAX-8 | element14

Frequently Asked Questions

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Is the MAX4377HAUA+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Newark Electronics, element14 and Farnell have stock available or on a lead time for MAX4377HAUA+ .

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