REF3440QDBVRQ1

REF34xx REF3440QDBVRQ1 is an integrated circuit that converts voltage into digital signals for output. It converts AC power from a DC power source or battery through a resistor to a low-voltage differential voltage signal output, which is then converted into a digital quantity by an AD conversion circuit. It is usually used as a voltage reference point in a measurement circuit.

Features

REF3440QDBVRQ1 is a high-precision, low-power reference voltage source with excellent stability and low noise characteristics. Its output current is 10 mA, ensuring that it does not cause additional power consumption burden on the system while providing the reference voltage. At the same time, its power supply current only requires 95µA, and its extremely low power consumption makes it particularly outstanding in long-term operating applications.

In terms of noise, the REF3440QDBVRQ1 IC has a noise level of 3.8µVp-p in the frequency range of Noise -0.1Hz to 10Hz, while in the frequency range of Noise -10Hz to 10kHz, its noise is 24µVrms. These low noise characteristics make it perform well in situations that require high-precision voltage references, such as audio equipment, measuring instruments, etc.

The operating temperature range of the Voltage Reference IC REF3440QDBVRQ1 is -40°C ~ 125°C (TA), and its wide operating temperature range enables it to work stably in various harsh environments, adapt to various application scenarios, and greatly improve its performance and lifespan. In addition, its output type is Fixed voltage output, and Voltage Output (Min/Fixed) is 4.096V, providing a stable voltage reference. The voltage input range of this PMIC chip is 4.596V ~ 12V, which is suitable for various power supply environments.

The supplier device package for REF3440QDBVRQ1 IC is SOT-23-6, with a temperature coefficient of 6ppm/°C and a tolerance of ±0.05%. These parameters further ensure its high accuracy and stability.

The manufacturer of Texas Instruments REF3440QDBVRQ1 adopts SOT-23-6 packaging volume and Tape & Reel (TR) standard packaging, which has the advantages of small volume and easy integration into various scenarios of circuit boards. At the same time, using Tape & Reel (TR) packaging also facilitates automated production and transportation storage.

Applications

● Measurement and calibration

Such as voltmeter, ammeter, power meter, etc. They provide accurate voltage values for calibrating other measuring devices, ensuring the accuracy and reliability of measurement results.

● Voltage regulation

A stable voltage source for voltage regulators, voltage references, and voltage monitors in power management circuits, switching power supplies, linear regulators, and battery powered equipment.

● Communication system

Such as wireless transceivers, cellular base stations, satellite communication systems, and network infrastructure equipment, to maintain a stable reference voltage for signal processing, modulation, demodulation, and frequency synthesis.

● Sensor Interfaces

Voltage reference ICs are used in sensor interface circuits for conditioning sensor signals, providing accurate reference voltages for sensor calibration, and ensuring consistent sensor performance in applications such as temperature sensors, pressure sensors, and strain gauges.