link to page 3 link to page 3 ADR280SPECIFICATIONS ELECTRICAL CHARACTERISTICS VIN = 2.55 V to 5.5 V, TA = 25°C, unless otherwise noted. Table 1. Parameter SymbolConditionsMinTyp1MaxUnit Output Voltage VOUT 2.4 V < VIN < 5.5 V, 0 μA < IOUT < 10 μA, −40°C < TA < +85°C 1.195 1.200 1.205 V Temperature Coefficient TCVO 0°C < TA < 50°C 5 20 ppm/°C –40°C < TA < +85°C 10 40 ppm/°C Line Regulation ΔVOUT/ΔVIN 2.55 V < VIN < 5.5 V, no load 2 12 ppm/V Supply Current IIN 2.4 V < VIN < 5.5 V, no load 10 16 μA Ground Current IGND V– grounded, ILOAD = 10 μA 12 20 μA Input Voltage Range VIN 2.4 5.5 V Operating Temperature Range TA −40 +85 °C Nominal Load Capacitance COUT 1 μF Output Noise Voltage VN rms f = 10 Hz to 10 kHz 12.5 μV rms Voltage Noise Density eN f = 400 kHz 12.5 nV/√Hz Power Supply Ripple Rejection2 PSRR ILOAD = 10 μA −80 dB Start-Up Time tON 2 ms 1 Typical values represent average readings taken at room temperature. 2 Power supply ripple rejection measurement applies to a changing input voltage (VIN) waveform with a nominal 3.6 V baseline that drops to a 3 V value for 380 μs at a 4.6 ms repetition rate. Rev. C | Page 3 of 12 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION PIN CONFIGURATIONS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ELECTRICAL CHARACTERISTICS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION APPLICATIONS INFORMATION LOW COST, LOW POWER CURRENT SOURCE Precision Low Power Current Source Boosted Current Source Negative Reference Boosted Reference with Scalable Output GSM and 3G Mobile Station Applications OUTLINE DIMENSIONS ORDERING GUIDE
