AnalogySemi Launches Low Temperature Drift, High Performance, Small Package Voltage Reference REF1xx

　　New Product

　　AnalogySemi, an excellent domestic analog and digital analog hybrid chip designer dedicated to providing high-quality chips, has announced the launch of the REF1x/3xx/4xx series of low temperature drift, high-performance, low-power, and small package voltage reference sources. The initial accuracy of this series of products reaches 0.05% and has excellent temperature drift performance. The REF1xx and REF3xx series products have a typical temperature drift value of 5ppm/° C, with a maximum value of 15ppm/° C. The high-performance REF4xx series has a typical temperature drift value of 2ppm/° C, which is the ultimate performance. The working temperature of the REF1xx/3xx/4xx voltage reference source is -40~125 ℃, which is widely used in industries, photovoltaics, automobiles, medical and other fields. Among them, REF3xx, as a universal product, provides a vehicle level version that supports AEC-Q100, providing excellent performance for harsh automotive application scenarios.

　　Features

　　Excellent temperature drift performance:

　　REF1/3XX: typical value 5ppm/° C, maximum value 15ppm/° C, temperature range -40 to 125 ° C

　　■ REF4XX: Typical value 2ppm/° C

　　● Microencapsulation: SOT23-3, SOT23-6

　　High output current: greater than ± 20mA

　　High accuracy: 0.05%

　　Low static current:

　　■ REF1XX：5 μ A

　　■ REF3/4XX：50 μ A

　　Extreme low voltage difference: 1mV typical value

　　0.1Hz-10Hz noise 28 μ Vpp @Output = 2.5V

　　Voltage options: 1.25V/1.8V/2.048V/2.5V/3V/3.3V/4.096V/4.5V/5V

　　As an indispensable basic circuit module in digital analog systems, voltage reference sources provide precise and stable voltage references for circuit units such as digital to analog converters (DACs), analog-to-digital converters (ADCs), linear regulators, and switching regulators; Directly affects the performance and accuracy of electronic systems. In addition, the voltage reference source can also provide stable bias for sensor chips such as pressure bridges, thermal resistors, and MEMS. Analogous to the REF1/3/4xx series voltage reference source launched by semiconductors, it has characteristics such as high precision, micro power consumption, low voltage difference, and achieves high-performance performance of ultra-low temperature drift on the basis of small packages of SOT23-3 and SOT23-6, thereby helping the system achieve reliable stability under various variable temperatures and voltages.

　　he REF1xx series products have as low as 5 μ The extremely low static current of A greatly reduces power consumption and prolongs battery life. It is suitable for industrial transmitters or battery powered data acquisition systems, providing high-precision reference sources while also extending the operating time of the power supply battery. The REF3xx series is a universal reference source product that can be widely used in industries such as industrial instruments, testing and measurement equipment, and medical equipment, helping to achieve high-precision front-end data collection within the system. The REF4xx series products have lower temperature drift characteristics (2ppm/℃) and can be applied to scientific instruments, semiconductor testers, exploration instruments, and clinical medical devices with higher precision requirements.

　　AnalogySemi The REF1x/3xx/4xx series voltage reference sources all provide a small package of SOT23-3; In addition, the REF3xx series also offers SOT23-6 packaging types with NR pin, enable pin, and output Sense pin functions. The enable pin is used to turn off devices to save power, the output Sense pin can be used to provide more accurate voltage values for high-load applications, and the NR pin is used to connect capacitors to achieve noise reduction.