Features and Benefits
- Comparator with on-chip reference
- Ultralow power consumption with ICC = 92 nA (typical)
- Precision low voltage monitoring down to 0.5 V
- Enable input
- 23 µs typical propagation delay
- Open-drain type output
- Accurate internal reference level over full temperature range
- ±1.6% at 1 V
- ±2.2% at 0.5 V
- Input glitch immunity
- Available in a 1.46 mm × 0.96 mm WLCSP
- Operational temperature range: −40°C to +85°C
The ADCMP380 is an ultralow power voltage comparator with internal reference suitable for use in general-purpose applications. The ultralow power consumption of this device makes it suitable for power efficiency sensitive systems, such as battery-powered portable devices and energy meters.
The ADCMP380 is available with a 0.5 V and 1 V internal reference with ±2.2% and ±1.6% accuracy, respectively, over the full temperature range; this internal reference enables the device to monitor the node of interest accurately to 0.5 V. The enable input allows the user to hold the output low regardless of the state of the input.
The ADCMP380 is available in a 6-ball, 1.46 mm × 0.96 mm WLCSP and is specified over the temperature range of −40°C to +85°C.
- Portable/battery-operated equipment
- Battery monitors
- Energy harvesting
Product Lifecycle Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
The ADCMP380-EVALZ evaluates the ADCMP380-2 ultralow power voltage comparator that has a 0.5 V internal reference with ±2.2% accuracy. The internal precision reference and the low input leakage current of the ADCMP380-2 allows the user to monitor the voltage of interest accurately through circuit resistors (R1, R2, and R4). These resistors can be configured to add a desired hysteresis to the input and prevent oscillations at the output.
A separate supply for the ADCMP380-EVALZ INPUT pin can be used to achieve low voltage monitoring. The user can also place an external jumper on the ADCMP380-EVALZ VCC_SEL pin to combine the voltage supply of the VCC pin and the monitoring INPUT pin on the ADCMP380-EVALZ.
The ADCMP380-EVALZ has an OUT pin that can be held low regardless of the ADCMP380-EVALZ INPUT pin state when an external jumper is placed on the ADCMP380-EVALZ EN pin, which shorts the EN pin to ground. A built in light emitting diode (LED) is placed at the ADCMP380-EVALZ OUT pin to monitor the pin status depending on the ADCMP380-EVALZ INPUT pin configuration.
The user can replace the on-board comparator with the ADCMP380-1 to have an internal reference of 1 V that is accurate up to ±1.6 %. The examples in this user guide only evaluate the ADCMP380-2. The level of monitored input and output voltages differ when using the ADCMP380-1 model.
For full details on the ADCMP380-2 and ADCMP380-1, see the ADCMP380 data sheet, which must be consulted in conjunction with this user guide when using the ADCMP380-EVALZ.
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.
Sample & Buy
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.