Analog Devices DR280
The ADR280 is a 1.2 V band gap core 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. 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.
| Part No. |
DR280 |
| Datasheet |
DR280
Download
|
| Manufacturer |
 Analog Devices |
| Description |
1.2 V Ultralow Power High PSRR Voltage Reference |
| Buy |
Stock & Price
|
FEATURES
1.2 V Precision Output Excellent Line Regulation, 2 ppm/V Typical High Power Supply Ripple Rejection, –80 dB at 220 Hz Ultralow Power, Supply Current 16 A Maximum Temperature Coefficient, 40 ppm/oC Maximum Low Noise, 12.5 nV/÷Hz Typical Operating Supply Range, 2.4 V to 5.5 V Compact 3-Lead SOT-23 and SC70 Packages APPLICATIONS
GSM, GPRS, 3G Mobile Stations Portable Battery-Operated Electronics Low Voltage Converter References Wireless Devices PIN CONFIGURATIONS 3-Lead SOT-23 (RT Suffix) V+ 1 ADR280 VOUT 2 3 V– 3-Lead SC70 (KS Suffix) VOUT 1 GENERAL DESCRIPTION
ADR280 V+ 2 3 V– LINE REGULATION (ppm/V) Devices such as the AD6535, which has an analog baseband IC with on-board baseband and audio codecs, voltage regulators, and battery charger, rely on the ADR280’s ability 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.
