ADM1191-2ARMZ-R7 Power Monitors by Analog Devices

Power Monitors
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.

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Prices starting from US$3.06

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Newark Electronics
from US$3.82
832
in stock
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element14
from US$4.46
832
in stock
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Farnell
from US$4.03
832
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Analog Devices
from US$3.06
239
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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

Last 6 months Inventory & Pricing History

Alternative Descriptions

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

Frequently Asked Questions

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

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

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Is the ADM1191-2ARMZ-R7 RoHS compliant?

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

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

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