MAX4071ATA+T by Analog Devices

Bidirectional, High-Side, Current-Sense Amplifiers with Reference

Status: Active
Series: MAX4071
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

The MAX4069–MAX4072 low-cost, bidirectional, high-side, current-sense amplifiers are ideal for monitoring battery charge and discharge currents in notebooks, cell phones, and other portable equipment. They feature up to 24V input common-mode voltage range, low 100µA supply current (which drops to only 10µA in shutdown), and a total output error of less than 1.5%. The wide 1.35V to 24V input common-mode range is independent of the supply voltage, ensuring that the current-sense feedback remains accurate even when connected to a battery pack in deep discharge. To achieve maximum flexibility, an external current-sense resistor is used along with a Gain Select pin to choose either 50V/V or 100V/V. A single output pin continuously monitors the transition from charge to discharge and avoids the need for a separate polarity output. The MAX4070 contains an internal 2.5V reference. The charging current is represented by an output voltage from 2.5V to VCC, while discharge current is given from 2.5V to GND. The MAX4071 is similar, but with a reference voltage of 1.5V. The MAX4069 has an adjustable reference voltage, set by two external resistors. The MAX4072 has an input for an external reference. The MAX4069/MAX4071/MAX4072 operate from a 2.7V to 24V single supply. The MAX4070 operates from a 3.6V to 24V single supply. All devices are specified over the automotive operating temperature range, -40°C to +125°C. The MAX4070/MAX4071/MAX4072 are available in 8-pin µMAX® and 8-pin thin QFN packages. The MAX4069 is available in a 10-pin µMAX package.

Prices starting from US$0.59


Distributor Starting From Stock
Logo for element14 element14 US$2.16
60
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Logo for Newark Electronics Newark Electronics US$0.59
38
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Features

Bidirectional, Compact, Current-Sense Solution
Total Output Error Less than 1.5%
Selectable Gain of 50V/V or 100V/V
Wide 1.35V to 24V Common-Mode Range Independent of Supply Voltage
2.7V to 24V Single-Supply Operation
Internal Precision Reference Adjustable (MAX4069) 2.50V (MAX4070) 1.50V (MAX4071)
Adjustable (MAX4069)
2.50V (MAX4070)
1.50V (MAX4071)
Low 100µA Supply Current
10µA Supply Current in Shutdown
Available in Space-Saving Packages 8-Pin Thin QFN (MAX4070/MAX4071/MAX4072) 8-Pin µMAX (MAX4070/MAX4071MAX4072) 10-Pin µMAX (MAX4069)
8-Pin Thin QFN (MAX4070/MAX4071/MAX4072)
8-Pin µMAX (MAX4070/MAX4071MAX4072)
10-Pin µMAX (MAX4069)

Specifications

VSENSE_FS (mV) (recomm.) 5075
VOS @25°C (µV) (max) 250
Output Format Voltage
CMVR (V) (min) 1.35
CMVR (V) (max) 24
VCC (V) (min) 2.7
VCC (V) (max) 24
ICC (µA) (typ) 120
Bi-Dir. Curr. Sense Yes
Gain 100 V/V50 V/V
Gain Accuracy @25°C (%) (max) 1
Oper. Temp. (°C) -40 to +125
Package/Pins TDFN/8UMAX/8
BudgetaryPrice (See Notes) 1.46


MAX4071ATA+T Amplifiers & Comparators by Analog Devices

CURRENT SENSE AMPLIFIER 100KHZ TQFN-8

Status: Unknown
Series: -
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

Specifications

No. of Amplifiers 1 Amplifier
Input Bias Current 2.4µA
Amplifier Case Style TQFN
No. of Pins 8Pins
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Bandwidth 100kHz
Supply Voltage Min 2.7V
Supply Voltage Max 24V
Input Offset Voltage 80µV
CMRR 120dB
Product Range -
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

CURRENT SENSE AMPLIFIER, 100KHZ, TQFN-8 | Farnell
Current Sense Amplifier, 100Khz, Tqfn-8 | Newark Electronics

Frequently Asked Questions

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Is the MAX4071ATA+T RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Farnell, element14 and Newark Electronics have stock available or on a lead time for MAX4071ATA+T .

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