MAX4080FAUA+T

The MAX4080FAUA+T is an electronic component. View the full MAX4080FAUA+T datasheet below including electrical characteristics, absolute maximum ratings.

Overview

Part: MAX4080/MAX4081 — Maxim Integrated Products

Type: High-Side Current-Sense Amplifier

Description: High-side current-sense amplifiers with a 4.5V to 76V input common-mode range, available in unidirectional (MAX4080) or bidirectional (MAX4081) versions, offering three gain options (5V/V, 20V/V, 60V/V) and ±0.1% full-scale accuracy.

Operating Conditions:

Supply voltage: 4.5V to 76V
Operating temperature: -40°C to +125°C
Input common-mode range: 4.5V to 76V

Absolute Maximum Ratings:

Max supply voltage: +80V
Max junction temperature: +150°C
Max storage temperature: -65°C to +150°C

Key Specs:

Supply Current (MAX4080): 75 μA (typ) at VCC = VRS+ = 76V, no load
Supply Current (MAX4081): 103 μA (typ) at VCC = VRS+ = 76V, no load
Gain Accuracy: ±0.6% (max) at TA = +25°C, VCC = VRS+ = 48V
Input Offset Voltage: ±0.6 mV (max) at TA = +25°C, VCC = VRS+ = 48V
Common-Mode Rejection Ratio: 100 dB (min) at VCC = 48V, VRS+ = 4.5V to 76V
Power-Supply Rejection Ratio: 100 dB (min) at VRS+ = 48V, VCC = 4.5V to 76V
Bandwidth (MAX4080F/T/S): 250 kHz (typ) at VCC = VRS+ = 48V, VOUT = 2.5V
Bandwidth (MAX4081F/T/S): 150 kHz (typ) at VCC = VRS+ = 48V, VOUT = 2.5V

Features:

Wide 4.5V to 76V Input Common-Mode Range
Bidirectional or Unidirectional ISENSE
Three Gain Versions Available: 5V/V, 20V/V, 60V/V
±0.1% Full-Scale Accuracy
Low 100 μV Input Offset Voltage
Independent Operating Supply Voltage
Reference Input for Bidirectional OUT (MAX4081)

Applications:

Automotive (12V, 24V, or 42V Batteries)
48V Telecom and Backplane Current Measurement
Bidirectional Motor Control
Power-Management Systems
Avalanche Photodiode and PIN-Diode Current Monitoring
General System/Board-Level Current Sensing
Precision High-Voltage Current Sources

Package:

8-Pin μMAX
8-Pin SO

Features

♦ Wide 4.5V to 76V Input Common-Mode Range
♦ Bidirectional or Unidirectional ISENSE
♦ Low-Cost, Compact, Current-Sense Solution
♦ Three Gain Versions Available 5V/V (MAX4080F/MAX4081F) 20V/V (MAX4080T/MAX4081T) 60V/V (MAX4080S/MAX4081S)
♦ ±0.1% Full-Scale Accuracy
♦ Low 100 μ V Input Offset Voltage
♦ Independent Operating Supply Voltage
♦ 75 μ A Supply Current (MAX4080)
♦ Reference Input for Bidirectional OUT (MAX4081)
♦ Available in a Space-Saving, 8-Pin μ MAX Package

Applications

Automotive (12V, 24V, or 42V Batteries)

48V Telecom and Backplane Current

Measurement

Bidirectional Motor Control

Power-Management Systems

Avalanche Photodiode and PIN-Diode Current Monitoring

General System/Board-Level Current Sensing

Precision High-Voltage Current Sources

μMAX is a registered trademark of Maxim Integrated Products, Inc.

Pin Configuration

________________________________________________________________

Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.

Electrical Characteristics

(VCC = VRS+ = 4.5V to 76V, VREF1A = VREF1B = 5V (MAX4081 only), VSENSE = (VRS+ - VRS-) = 0V, RLOAD = 100k Ω , TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Notes 1, 2)

PARAMETER	SYMBOL	CONDITIONS	CONDITIONS	MIN	TYP	MAX	UNITS
Operating Voltage Range	V CC	Inferred from PSRR test	Inferred from PSRR test	4.5		76	V
Common-Mode Range	CMVR	Inferred from CMRR test (Note 3)	Inferred from CMRR test (Note 3)	4.5		76	V
Supply Current	I CC	V CC = V RS+ = 76V, no load	MAX4080		75	190	μA
	I CC	V CC = V RS+ = 76V, no load	MAX4081		103	190	μA
Leakage Current	I RS+ , I RS-	V CC = 0V, V RS+ = 76V	V CC = 0V, V RS+ = 76V		0.01	2	μA
Input Bias Current	I RS+ , I RS-	V CC = V RS+ = 76V	V CC = V RS+ = 76V		5	12	μA
Full-Scale Sense Voltage (Note	V SENSE	MAX4080F/MAX4081F	MAX4080F/MAX4081F		± 1000		mV
4)	V SENSE	MAX4080T/MAX4081T	MAX4080T/MAX4081T		± 250		mV
	V SENSE	MAX4080S/MAX4081S	MAX4080S/MAX4081S		± 100		mV
Gain	A V	MAX4080F/MAX4081F	MAX4080F/MAX4081F		5		V/V
Gain	A V	MAX4080T/MAX4081T	MAX4080T/MAX4081T		20		V/V
Gain	A V	MAX4080S/MAX4081S	MAX4080S/MAX4081S		60		V/V
Gain Accuracy	∆ A V	V CC = V RS+ = 48V (Note 5)	T A = +25 ° C		± 0.1	± 0.6	%
Gain Accuracy	∆ A V	V CC = V RS+ = 48V (Note 5)	T A = -40 ° C to +85 ° C			± 1	%
Gain Accuracy	∆ A V	V CC = V RS+ = 48V (Note 5)	T A = T MIN to T MAX			± 1.2	%
Input Offset Voltage	V OS	V CC = V RS+ = 48V (Note 6)	T A = +25°C		± 0.1	± 0.6	mV
Input Offset Voltage	V OS	V CC = V RS+ = 48V (Note 6)	T A = -40 ° C to +85 ° C			± 1	mV
Input Offset Voltage	V OS	V CC = V RS+ = 48V (Note 6)	T A = T MIN to T MAX			± 1.2	mV
Common-Mode Rejection Ratio	CMRR	V CC = 48V, V RS+ = 4.5V to 76V	V CC = 48V, V RS+ = 4.5V to 76V	100	124		dB
Power-Supply Rejection Ratio	PSRR	V RS+ = 48V, V CC = 4.5V to 76V	V RS+ = 48V, V CC = 4.5V to 76V	100	122		dB
OUT High Voltage	(V CC - V OH )	V CC = 4.5V, V RS+ = 48V, V REF1A = V REF1B = 2.5V, I OUT (sourcing) = +500μA (Note 8)	MAX4080F/MAX4081F, V SENSE = 1000mV		0.15	0.27	V
OUT High Voltage	(V CC - V OH )	V CC = 4.5V, V RS+ = 48V, V REF1A = V REF1B = 2.5V, I OUT (sourcing) = +500μA (Note 8)	MAX4080T/MAX4081T, V SENSE = 250mV		0.15	0.27	V
OUT High Voltage	(V CC - V OH )	V CC = 4.5V, V RS+ = 48V, V REF1A = V REF1B = 2.5V, I OUT (sourcing) = +500μA (Note 8)	MAX4080S/MAX4081S, V SENSE = 100mV		0.15	0.27	V

_______________________________________________________________________________________

Absolute Maximum Ratings

RS+, RS- to GND....................................................-0.3V to +80V
OUT to GND.............-0.3V to the lesser of +18V or (V CC + 0.3V)
REF1A, REF1B to GND (MAX4081 Only)....-0.3V to the lesser of +18V or (V CC + 0.3V)
Output Short Circuit to GND.......................................Continuous
Differential Input Voltage (V RS + - V RS -) ...............................±80V
Current into Any Pin..........................................................±20mA
8-Pin μMAX (derate 4.5mW/°C above +70°C).............362mW
8-Pin SO (derate 5.88mW/°C above +70°C)................471mW
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

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

For the latest package outline information and land patterns, go to www.maxim-ic.com/packages .

PACKAGE TYPE	PACKAGE CODE	DOCUMENT NO.
8 μMAX	U8-2	21-0036
8 SO	S8-2	21-0041

______________________________________________________________________________________

Package Information (continued)

For the latest package outline information and land patterns, go to www.maxim-ic.com/packages .

______________________________________________________________________________________

Data on this page is extracted from publicly available manufacturer datasheets using automated tools including AI. It may contain errors or omissions. Always verify specifications against the official manufacturer datasheet before making design or purchasing decisions. See our Terms of Service. Rights holders can submit a takedown request.

Get structured datasheet data via API

Get started free