MAX9929FAUA+ by Analog Devices

-0.1V to +28V Input Range, Micropower, Uni-/Bidirectional, Current-Sense Amplifiers


The MAX9928F/MAX9929F low-cost, uni-/bidirectional, high-side, current-sense amplifiers are ideal for monitoring battery charge and discharge currents in notebooks, cell phones, and other portable equipment. These devices feature a wide -0.1V to +28V input common-mode voltage range, low 20µA supply current with VOS less than 0.4mV, and a gain accuracy better than 1.0%. The input common-mode range is independent of the supply voltage, ensuring that the current-sense information remains accurate even when the measurement rail is shorted to ground. The MAX9928F features a current output with a transconductance ratio of 5μA/mV. An external resistor converts the output current to a voltage, allowing adjustable gain so that the input sense voltage can be matched to the maximum ADC input swing. The MAX9929F has a voltage output and integrates a 10kΩ output resistor for a fixed voltage gain of 50V/V. A digital SIGN output indicates direction of current flow, so the user can utilize the full ADC input range for measuring both charging and discharging currents. The MAX9928F/MAX9929F are fully specified over the -40°C to +125°C automotive temperature range, and available in 6-bump UCSP™ (1mm x 1.5mm) and 8-pin µMAX® packages. The UCSP package is bump-to-bump compatible with the MAX4372_EBT.

Where to Buy

Prices starting from US$1.13

Distributor Stock
Logo for RS
RS
from US$1.97
175
in stock
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Logo for Chip One Stop
Chip One Stop
from US$1.13
859
in stock
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Analog Devices
from US$1.53
117
in stock
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Newark Electronics
from US$2.23
61
in stock
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element14
from US$1.75
61
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Farnell
from US$1.83
61
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Features

Wide -0.1V to +28V Common-Mode Range, Independent of Supply Voltage
2.5V to 5.5V Operating Supply Voltage
20µA Quiescent Supply Current
0.4mV (max) Input Offset Voltage
Gain Accuracy Better than 1% (max)
SIGN Output Indicates Current Polarity
Transconductance and Gain Versions Available 5µA/mV (MAX9928F) 50V/V (MAX9929F)
5µA/mV (MAX9928F)
50V/V (MAX9929F)
Pin Compatible with the MAX4372 in UCSP
Available in Ultra-Small, 3x2 UCSP (1mm x 1.5mm) and 8-Pin µMAX Packages

Specifications

VSENSE_FS (mV) (recomm.) +/-125+/-50
VOS @25°C (µV) (max) 400
Output Format Voltage
CMVR (V) (min) -0.1
CMVR (V) (max) 28
VCC (V) (min) 2.5
VCC (V) (max) 5.5
ICC (µA) (typ) 20
Bi-Dir. Curr. Sense Yes
Gain 50 V/V
Gain Accuracy @25°C (%) (max) 1
Oper. Temp. (°C) -40 to +125
Package/Pins UCSP (B)/6UMAX/8
BudgetaryPrice (See Notes) 1.05


MAX9929FAUA+ Amplifiers & Comparators by Analog Devices

CURRENT SENSE AMP 0.1~28V 8UMAX

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

Specifications

No. of Amplifiers 1 Amplifier, 1Amplifiers
Input Bias Current 6µA
Amplifier Case Style µMAX
No. of Pins 8Pins
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Bandwidth 150kHz
Supply Voltage Min 2.5V
Supply Voltage Max 5.5V
Input Offset Voltage 600µV
CMRR 104dB
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Base Number 9929
Bias Current 1.6µA
Common Mode Voltage VCM 28V
Gain Bandwidth 150kHz
Gain dB Max 50dB
Operating Temperature Range -40°C to +125°C
Supply Current 115µA
Supply Voltage Range 2.5V to 5.5V
Termination Type Surface Mount Device

Alternative Descriptions

MAXIM,MAX9929FAUA+ | RS
-0.1V to +28V Input Range, Mic | Analog Devices
Current Sense Amp, 0.1~28V, 8Umax | Newark Electronics
CURRENT SENSE AMP, 0.1~28V, 8UMAX | element14

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX9929FAUA+ ?

Additional datasheets, footprints and schematics for MAX9929FAUA+ are listed on our Part Details page. You can also find images and similar parts to MAX9929FAUA+ on this page.

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Is the MAX9929FAUA+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX9929FAUA+ have stock available?

Authorised distributors including Chip One Stop, RS, Analog Devices, Newark Electronics and element14 have stock available or on a lead time for MAX9929FAUA+ .

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