REF191 概述

The REF191 precision band gap voltage references use a patented temperature drift curvature correction circuit and laser trimming of highly stable, thin-film resistors to achieve a very low temperature coefficient and high initial accuracy.

The REF191 references is specified over the extended industrial temperature range (−40°C to +85°C) with typical performance specifications over −40°C to +125°C for applications, such as automotive.

REF191 特性

• Initial Accuracy: ±2 mV Max
• Temperature Coefficient: 5 ppm/°C Max
• Low Supply Current: 45 µA Max
• Sleep Mode: 15 µA Max
• Low Dropout Voltage
• Load Regulation: 4 ppm/mA
• Line Regulation: 4 ppm/V
• High Output Current: 30 mA
• Short-Circuit Protection

REF191 应用

• Portable instruments
• ADCs and DACs
• Smart sensors
• Solar powered applications
• Loop-current-powered instruments