Overview
The ADM2914-1ARQZ-RL7 is a quad voltage supervisory IC produced by Analog Devices Inc. This device is designed to monitor multiple voltage rails in various applications, ensuring reliable operation by detecting both undervoltage (UV) and overvoltage (OV) conditions. The ADM2914-1 model specifically features a latching overvoltage output that can be cleared by toggling the LATCH input pin. It operates over an extended temperature range of −40°C to +125°C and is packaged in a 16-lead QSOP (Shrink Small Outline Package).
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Temperature Range | −40°C to +125°C | °C |
| Package Type | 16-Lead QSOP | |
| Supply Current | 62 μA | μA |
| Minimum VCC for Guaranteed Output | 1 V | V |
| Buffered Reference Output | 1 V | V |
| LATCH Input High Threshold | 1.2 V | V |
| LATCH Input Low Threshold | 0.8 V | V |
| LATCH Input Current | ±1 μA | μA |
Key Features
- Quad voltage supervision with dedicated input pins for each rail to monitor both UV and OV conditions.
- A common active low UV and OV pin shared by each monitored voltage rail.
- A 1 V buffered reference output for offset when monitoring negative voltages.
- A three-state SEL pin to configure the device for monitoring positive or negative supplies.
- Internal shunt regulator to regulate VCC and protect against high voltage conditions.
- Latching overvoltage output that can be cleared by toggling the LATCH input pin (ADM2914-1 model).
- Glitch immunity and low supply current of 62 μA.
Applications
- Server supply monitoring
- FPGA/DSP core and I/O voltage monitoring
- Telecommunications equipment
- Medical equipment
Q & A
- What is the operating temperature range of the ADM2914-1ARQZ-RL7?
The operating temperature range is −40°C to +125°C.
- What type of package does the ADM2914-1ARQZ-RL7 come in?
The device is packaged in a 16-lead QSOP (Shrink Small Outline Package).
- What is the supply current of the ADM2914-1ARQZ-RL7?
The supply current is 62 μA.
- What is the minimum VCC required for guaranteed output?
The minimum VCC required is 1 V.
- How does the ADM2914-1 model handle overvoltage conditions?
The ADM2914-1 model features a latching overvoltage output that can be cleared by toggling the LATCH input pin.
- What is the purpose of the internal shunt regulator in the ADM2914-1ARQZ-RL7?
The internal shunt regulator helps to regulate VCC and protect against high voltage conditions by limiting the current flow into the VCC pin.
- Can the ADM2914-1ARQZ-RL7 monitor both positive and negative voltage supplies?
- What are some common applications of the ADM2914-1ARQZ-RL7?
- How does the buffered reference output work in the ADM2914-1ARQZ-RL7?
- What is the significance of the LATCH input in the ADM2914-1 model?
The LATCH input allows the latching overvoltage output to be cleared by toggling this pin.
