ADM1191
ADM1191
PRODUCTIONDigital Power Monitor with Convert Pin and ALERTB Output
- Part Models
- 1
- 1ku List Price
- Starting From $2.95
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Overview
- 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
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.
APPLICATIONS
- Power monitoring/power budgeting
- Central office equipment
- Telecommunication and data communication equipment
- PCs/servers
Documentation
Data Sheet 1
User Guide 1
Evaluation Design File 1
Analog Dialogue 2
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| ADM1191-2ARMZ-R7 | 10-Lead MSOP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Mar 22, 2021 - 21_0001 Addition of Amkor Philippines as an Alternate Site for Singulated MSOP and MSOP_EP |
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| ADM1191-2ARMZ-R7 | PRODUCTION | |
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Oct 30, 2017 - 15_0176 Assembly Transfer of Select 8/10L MSOP Products to Amkor Philippines |
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| ADM1191-2ARMZ-R7 | PRODUCTION | |
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May 28, 2012 - 12_0042 ADM1191 Datasheet Correction |
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| ADM1191-2ARMZ-R7 | PRODUCTION | |
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May 15, 2012 - 10_0006 Halogen Free Material Change for mini SOIC Products |
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| ADM1191-2ARMZ-R7 | PRODUCTION | |
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Nov 16, 2009 - 06_0157 Qualification of the 8" H6 Thin Film BiPolar Wafer Fab Process at Analog Devices, Limerick, Ireland |
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| ADM1191-2ARMZ-R7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Evaluation Software 2
ADM1175-78 & ADM1191-92 Evaluation Software
ADMxxxx Common Run-Time
Can't find the software or driver you need?
Evaluation Kits
ADM1191 Evaluation Board