REF5045AIDG4

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Power management integrated circuits (PMICs) have become standard equipment in many modern systems and applications that require voltage references to regulate their operational requirements. The REF5045AIDG4 from Texas Instruments is one such device, which is designed for use as a voltage reference and offers high accuracy, low consumption and low temperature characteristics. The REF5045AIDG4 is a low-power, low-voltage monolithic CMOS voltage reference, specifically designed for systems requiring a high degree of accuracy and stability when operating from a single supply voltage. This device provides accuracy over a wide temperature range with a guaranteed accuracy of ±0.05 % on the normal operating conditions and with a temperature coefficient of less than 25 ppm/°C. The reference voltage is set externally via an external voltage divider. The device also includes an internal bandgap reference, allowing the reference output to be adjusted to within ±0.1% of the programmed values without the need for external components. The REF5045AIDG4 is suitable for a wide range of applications, particularly those requiring high accuracy and tight stability over a range of environmental conditions, such as medical or instrumentation systems. It is also used in low-level signal detection, voltage regulators and precision A/D converters. In terms of operation, the REF5045AIDG4 has an enable/disable pin that can be used to put the device into low-power standby mode, drastically reducing power consumption (down to around 65 µA). Upon application of power, the device requires a short startup time before becoming operational, typically around 1μs. Aside from the enable/disable pin, all other pins on the device are internally isolated from the power supply and are ESD protected. The device has a wide range of features to improve its performance including a low output impedance, high PSRR internally generated for stable output voltages, and wide operating voltage range (1.8V to 5.5V). Combined, these features make the REF5045AIDG4 an ideal choice for voltage reference applications. In summary, the REF5045AIDG4 from Texas Instruments is a low-power, low-voltage monolithic CMOS voltage reference that offers accuracy and stability over a wide temperature range, as well as a wide range of features including a low output impedance, high PSRR and wide operating voltage range. This device provides reliable operation and suitable for use in numerous applications where tight voltage accuracy and stability are required.

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