器件名称:
ADR290
功能描述:
Low Noise Micropower Precision Voltage References
文件大小:
199.78KB 共15页
简 介:
a FEATURES Supply Range 2.35 V to 15 V, ADR290 2.8 V to 15 V, ADR291 4.4 V to 15 V, ADR292 Supply Current 12 A Max Low-Noise 6 V, 8 V, 12 V p-p (0.1 Hz–10 Hz) High Output Current 5 mA Temperature Range 40 C to 125C Pin Compatible with REF02/REF19x APPLICATIONS Portable Instrumentation Precision Reference for 3 V and 5 V Systems A/D and D/A Converter Reference Solar-Powered Applications Loop-Current-Powered Instruments Low Noise Micropower 2.048 V, 2.5 V, and 4.096 V Precision Voltage References ADR290/ADR291/ADR292 PIN CONFIGURATIONS 8-Lead Narrow Body SO (SO Suffix) NC 1 VIN 2 8 NC 7 NC TOP VIEW NC 3 (Not to Scale) 6 VOUT 5 NC ADR29x GND 4 NC = NO CONNECT 8-Lead TSSOP (RU Suffix) NC 1 VIN 2 8 NC 7 NC TOP VIEW NC 3 (Not to Scale) 6 VOUT 5 NC ADR29x GND 4 NC = NO CONNECT GENERAL DESCRIPTION The ADR290, ADR291 and ADR292 are low noise, micropower precision voltage references that use an XFET reference circuit. The new XFET architecture offers significant performance improvements over traditional bandgap and Buried Zener-based references. Improvements include: one quarter the voltage noise output of bandgap references operating at the same current, very low and ultralinear temperature drift, low thermal hysteresis and excellent long-term stability. The ADR29x family are series voltage references providing stable and accurate output voltages from supplies as low as 2.35 V for the ADR290. Output voltage options are 2.048 V, 2.5 V, and 4.096 V for the ADR290, ADR291, an……
