VRE3050BS

VRE3050 RoHS Precision Voltage Reference COMPLIANT FEATURES • • • • • • • • +5 V Output, ± 0.5 mV (0.01%) Temperature Drift: 0.6 ppm/°C Low Noise: 3 μVP-P (0.1 Hz - 10 Hz) 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 reduction pin and the ground pin. A ceramic input filter capacitor of 0.1μF is recommended to ensure output stability. SELECTION GUIDE Model www.apexanalog.com Initial Error (mV) Temp. Coeff. (ppm/ºC) Temp Range (ºC) VRE3050BS ±0.8 1.0 0ºC to +70ºC VRE3050JS ±0.5 0.6 -40ºC to +85ºC VRE3050LS ±1.0 2.0 -40ºC to +85ºC © Apex Microtechnology Inc. All rights reserved Oct 2017 VRE3050DS Rev O VRE3050 TYPICAL CONNECTION Figure 1: Typical Connection + V IN 2 Optional Noise Reduction Capacitor Input Filter Capacitor CIN 0.1μF + V OUT 8 6 VRE3025 CN 5 1μF 4 10 kΩ Optional Fine Trim Adjustment GND PIN DESCRIPTIONS 2 Pin Number Name Description 1, 3, 7 NC No connection. 2 VIN The supply voltage connection. 4 GND Ground. 5 TRIM Optional fine adjustment. Connect to a voltage divider between OUT and GND. 6 OUT 5 V output. 8 NR Optional noise reduction. Connect a 1µF capacitor between this pin and GND. VRE3050DS Rev O VRE3050 ELECTRICAL SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS Parameter Power Supply Symbol Min Max Unit VIN -0.3 +40 V -0.3 +12 V -0.3 +6 V 0 +70 °C -40 Out, Trim Noise Reduction Operating Temp. (B) Operating Temp. (J, L) NR +85 °C Out Short Circuit to GND Duration (VIN