ADR280ARTZ-R2 (ANALOG DEVICES)

The ADR280ARTZ-R2 is an ultralow power high PSRR Voltage Reference with excellent line regulation and power supply rejection designed specifically for applications experiencing heavy dynamic supply variations, such as data converter references in GSM, GPRS and 3G mobile station applications. Device such as the AD6535 that has an analog baseband IC with on-board baseband, audio codecs, voltage regulators and battery chargers rely on the ability of the ADR280 to reject input battery voltage variations during RF power amplifier activity. In addition to mobile stations, the ADR280 is suitable for a variety of general-purpose applications. Most band gap references include internal gain for specific outputs, which simplifies the user's design, but compromises on the cost, form factor and flexibility. The ADR280, on the other hand, optimizes the band gap core voltage and allows users to tailor the voltage, current or transient response by simply adding their preferred op amps.