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 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.

FEATURES

Voltage Options 2.048 V, 2.500 V and 4.096 V

2.7 V to 15 V Supply Range

Supply Current 12 mA max

Initial Accuracy 62 mV max

Temperature Coefficient 8 ppm/8C max

Low-Noise 6 mV p-p (0.1 Hz–10 Hz)

High Output Current 5 mA min

Temperature Range 2408C to 11258C

REF02/REF19x Pinout

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

ADR293属于集成电路（IC） > 电压基准。亚德诺半导体技术有限公司制造生产的ADR293电压基准产品属于基准电压源系列，可通过相对较不稳定的电源提供稳定的电势，电压值始终保持恒定，以便在测量、控制和类似应用中用作比较的标准。其功能行为可能与用于大功率调节的线性稳压器相似，但基准电压源器件却不适合用于此类用途。用作比较标准时，若输出电流容量或实际负载电流增大，其性能通常会降低。