Overview
The ADM2914-2ARQZ, produced by Analog Devices Inc., is a quad voltage supervisory IC designed to monitor multiple voltage rails in various applications. This device is particularly suited for systems that require precise monitoring of both positive and negative voltage supplies. It features adjustable undervoltage (UV) and overvoltage (OV) thresholds, high threshold accuracy over temperature, and a 1 V buffered reference output. The ADM2914-2ARQZ is available in a 16-lead QSOP package and operates over an extended temperature range of −40°C to +125°C.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | 16-Lead QSOP |
| Operating Temperature Range | −40°C to +125°C |
| Supply Current | 62 μA |
| UV/OV Threshold Accuracy | ±1.5% over temperature |
| Reference Output Voltage | 1 V buffered |
| Reset Timeout | Adjustable with disable option |
| Reset Output Type | Open-drain |
| VCC Regulation | Internal shunt regulator |
| LATCH/DIS Input Thresholds | High: 1.2 V, Low: 0.8 V |
Key Features
- Quad UV/OV positive/negative voltage supervisor
- Adjustable UV and OV input thresholds
- High threshold accuracy over temperature: ±1.5%
- 1 V buffered reference output
- Open-drain UV and OV reset outputs
- Adjustable reset timeout with disable option
- Glitch immunity
- Internal shunt regulator for higher voltage systems
- Three-state SEL pin for configuring positive or negative supplies
Applications
- Server supply monitoring
- FPGA/DSP core and I/O voltage monitoring
- Telecommunications equipment
- Medical equipment
Q & A
- What is the primary function of the ADM2914-2ARQZ?
The primary function is to monitor multiple voltage rails for undervoltage (UV) and overvoltage (OV) conditions. - What is the operating temperature range of the ADM2914-2ARQZ?
The operating temperature range is −40°C to +125°C. - What type of package does the ADM2914-2ARQZ come in?
The ADM2914-2ARQZ comes in a 16-lead QSOP package. - How accurate are the UV/OV thresholds over temperature?
The UV/OV thresholds have an accuracy of ±1.5% over temperature. - What is the purpose of the 1 V buffered reference output?
The 1 V buffered reference output acts as an offset when monitoring negative voltages. - Can the reset timeout be adjusted?
Yes, the reset timeout is adjustable and includes a disable option. - What is the supply current of the ADM2914-2ARQZ?
The supply current is 62 μA. - How does the internal shunt regulator work?
The internal shunt regulator enables the device to be used in higher voltage systems by regulating VCC if the supply line exceeds the absolute maximum ratings. - What is the purpose of the three-state SEL pin?
The three-state SEL pin determines the polarity of the third and fourth inputs, configuring the device to monitor positive or negative supplies. - What are some common applications of the ADM2914-2ARQZ?
Common applications include server supply monitoring, FPGA/DSP core and I/O voltage monitoring, telecommunications equipment, and medical equipment.
