ADM1185
ADM1185
LAST TIME BUYQuad Voltage Monitor and Sequencer
- Part Models
- 2
- 1ku List Price
- Starting From $1.87
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Overview
- Powered from 2.7 V to 5.5 V on the VCC pin
- Logical core with internal timeouts provides power supply sequencing and fault protection
- 4 inputs can be programmed to monitor different voltage levels with resistor dividers
- Monitors 4 supplies via 0.8% accurate comparators
- 3 open-drain enable outputs
- Open-drain power-good output (PWRGD)
- 10-lead MSOP
The ADM1185 is an integrated, 4-channel, voltage monitoring and sequencing device. A 2.7 V to 5.5 V power supply is required on the VCC pin to power the device.
Four precision comparators monitor four voltage rails. All comparators have a 0.6 V reference with a worst-case accuracy of 0.8%. Resistor networks that are external to the VIN1, VIN2, VIN3, and VIN4 pins set the trip points for the monitored supply rails.
A digital core interprets the status of the comparator outputs.
Internal time delays can be used for sequencing the startup of subsequent power supplies enabled by the outputs. Supplies falling out of range are also detected and, as a result, appropriate outputs are disabled.
The ADM1185 has four open-drain outputs. In a typical configuration, OUT1 to OUT3 are used to enable power supplies, while PWRGD is a common power-good output, indicating the status of all monitored supplies.
The ADM1185 is available in a 10-lead mini small outline package (MSOP).
APPLICATIONS
- Monitor and alarm functions
- Power supply sequencing
- Telecommunication and data communication equipment
- PCs/servers
Documentation
Data Sheet 1
User Guide 1
Evaluation Design File 1
Product Selection Guide 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 |
|---|---|---|---|
| ADM1185ARMZ-1 | 10-Lead MSOP | ||
| ADM1185ARMZ-1REEL7 | 10-Lead MSOP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Feb 6, 2026 - 25_0172 Gold to Copper Wire Conversion at Amkor Philippines and Carsem Malaysia for Select TSSOP/MSOP Products |
||
| ADM1185ARMZ-1 | ||
| ADM1185ARMZ-1REEL7 | ||
|
Oct 26, 2015 - 15_0176 Assembly Transfer of Select 8/10L MSOP Products to Amkor Philippines |
||
| ADM1185ARMZ-1 | ||
| ADM1185ARMZ-1REEL7 | ||
|
Jul 29, 2026 - 26_0046 Discontinuation of Parts Manufactured in TSMC Fab 2 and 5 in Hsinchu, Taiwan. |
||
| ADM1185ARMZ-1 | ||
| ADM1185ARMZ-1REEL7 | ||
This is the most up-to-date revision of the Data Sheet.
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