VRE3050BS Apex Microtechnology

VRE3050 RoHS Precision Voltage Reference COMPLIANT FEATURES +5 V Output, 0.5 mV (0.01%) Temperature Drift: 0.6 ppm/C Low Noise: 3 V (0.1 Hz - 10 Hz) P-P Low Thermal Hysteresis: 1 ppm Typical 15mA Output Source and Sink Current Excellent Line Regulation: 5 ppm/V Typical Optional Noise Reduction and Voltage Trim Industry Standard Pinout: 8-pin Surface Mount Package APPLICATIONS The VRE3050 is recommended for use as a reference for 14, 16, or 18 bit data converters which require an external precision reference. The device is also ideal for calibrating scale factor on high resolution data converters. The VRE3050 offers superior performance over monolithic references. DESCRIPTION The VRE3050 is a low cost, high precision 5 V reference that operates from +10 V. The device features a buried zener for low noise and excellent long term stability. Packaged in an 8-pin SMT, the device is ideal for high resolution data conversion systems. The device provides ultrastable +5 V output with 0.5 mV (0.01%) initial accuracy and a temperature coefficient of 0.6 ppm/C. This improvement in accuracy is made possible by a unique, patented multi-point laser compensation technique. Significant improvements have been made in other performance parameters as well, including initial accuracy, warm-up drift, line regulation, and long-term stability, making the VRE3050 series the most accurate reference available. For enhanced performance, the VRE3050 has an external trim option for users who want less than 0.01% initial error. For ultra low noise applications, an external capacitor can be attached between the noise reduc- tion pin and the ground pin. A ceramic input filter capacitor of 0.1 F is recommended to ensure output stabil- ity. SELECTION GUIDE Initial Error Temp. Coeff. Temp Range Model (mV) (ppm/C) (C) VRE3050BS 0.8 1.0 0C to +70C VRE3050JS 0.5 0.6 -40C to +85C VRE3050LS 1.0 2.0 -40C to +85C Apex Microtechnology Inc. Oct 2017 www.apexanalog.com All rights reserved VRE3050DS Rev OVRE3050 TYPICAL CONNECTION Figure 1: Typical Connection + V IN 2 + V OUT Optional Noise 8 6 Reduction Capacitor VRE3025 C N Input Filter C IN Capacitor 0.1F 5 1F 10 k 4 Optional Fine Trim Adjustment GND PIN DESCRIPTIONS Pin Number Name Description 1, 3, 7 NC No connection. V 2 The supply voltage connection. IN 4GND Ground. 5 TRIM Optional fine adjustment. Connect to a voltage divider between OUT and GND. 6OUT 5 V output. 8 NR Optional noise reduction. Connect a 1F capacitor between this pin and GND. 2 VRE3050DS Rev O