ADM1191-2ARMZ-R7 Power Monitors by Analog Devices

Status: Production
Series: ADM1191
RoHS: Compliant
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The ADM1191 is an integrated current sense amplifier that offers digital current and voltage monitoring via an on-chip, 12-bit analog-to-digital converter (ADC), communicated through an I2C interface. An internal current sense amplifier senses voltage across the sense resistor in the power path via the VCC pin and the SENSE pin.A 12-bit ADC can measure the current seen in the sense resistor, as well as the supply voltage on the VCC pin.An industry-standard I2C interface allows a controller to read current and voltage data from the ADC. Measurements can be initiated by an I2C command or via the convert (CONV) pin. The CONV pin is especially useful for synchronizing reads on multiple ADM1191 devices. Alternatively, the ADC can run continuously, and the user can read the latest conversion data whenever it is required. Up to 16 unique I2C addresses can be created, depending on the way the A0 pin and the A1 pin are connected.A SETV pin is also included. A voltage applied to this pin is internally compared to the output voltage on the current sense amplifier. The output of the SETV comparator asserts when the current sense amplifier output exceeds the SETV voltage. When this event occurs, the ALERTB output asserts.The ALERTB output can be used as a flag to warn a micro-controller or field programmable gate array (FPGA) of an overcurrent condition. ALERTB outputs of multiple ADM1191 devices can be tied together and used as a combined alert.The ADM1191 is packaged in a 10-lead MSOP.

Prices starting from US$3.30


Distributor Starting From Stock
Logo for Analog Devices Analog Devices US$3.46
2,490
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Logo for Chip One Stop Chip One Stop US$3.59
1,000
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Logo for Newark Electronics Newark Electronics US$3.68
798
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Logo for element14 element14 US$3.49
798
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Logo for Farnell Farnell US$3.30
798
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Features

Powered from 3.15 V to 26 V
Precision current sense amplifier
12-bit ADC for current and voltage readback
Convert pin (CONV) for commanding an ADC read
SETV input for setting overcurrent alert threshold
Precision voltage input
ALERTB output provides an overcurrent interrupt
I2C® fast mode-compliant interface (400 kHz maximum)
Two address pins allow 16 devices on the same bus
10-lead MSOP

Alternative Descriptions

ALERTB I.C. | Analog Devices
Current/Pwr/Vtg Monitor, Msop-10 | Newark Electronics
CURRENT/PWR/VTG MONITOR, MSOP-10 | element14


Frequently Asked Questions

Where can I find additional details, specifications and documents for a ADM1191-2ARMZ-R7?

Additional datasheets, footprints and schematics for ADM1191-2ARMZ-R7 are listed on our Part Details page. You can also find images and similar parts to ADM1191-2ARMZ-R7 on this page.

What pricing and inventory information can I view?

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What category does ADM1191-2ARMZ-R7 fall under?

The ADM1191-2ARMZ-R7 is listed under Power Monitors.

Can I view similar or alternative parts?

You can view similar parts to ADM1191-2ARMZ-R7 when available in the Power Monitors range under the specifications section at the bottom of the details page.

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Is the ADM1191-2ARMZ-R7 RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

Which authorised distributors for ADM1191-2ARMZ-R7 have stock available?

Authorised distributors including Analog Devices, Chip One Stop, Newark Electronics, element14 and Farnell have stock available or on a lead time for ADM1191-2ARMZ-R7.

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