Features: • 2.500 V Output ± 0.250 mV (.01%)
• Temperature Drift: 0.6 ppm/
• Low Noise: 1.5V p-p (0.1Hz-10Hz)
• Low Thermal Hysteresis: 1 ppm Typ.
• ±15mA Output Source and Sink Current
• Excellent Line Regulation: 5 ppm/V Typ.
• Optional Noise Reduction and Voltage Trim
• Industry Standard PinoutSpecifications
| Output (V) |
Initial Error (mV) |
Temperature Coefficient (ppm/°C) |
Noise (µVpp) |
Feature |
Package |
| 2.5 |
0.2, 0.4, 0.5 |
0.6, 1, 2 |
1.5 |
+10V Supply |
8 DIP
8 SMT |
Power Supply ................-0.3V to +40V
OUT, TRIM ..................-0.3V to +12V
NR.......................-0.3V to +6V
Operating Temp. (A,B,C).............0 to 70
Operating Temp. (J,K,L)............-40 to 85
Out Short Circuit to GND Duration (VIN< 12V)....Continuous
Out Short Circuit to GND Duration (VIN< 40V)....5 sec
Out Short Circuit to IN Duration (VIN< 12V).Continuous
Continuous Power Dissipation (TA = +70).....300mW
Storage Temperature............-65 to 150
Lead Temperature (soldering,10 sec) .......250DescriptionThe VRE3025 is a low cost, high precision +2.5 V reference that operates from +10 V. The device features a buried zener for low noise and excellent long term stability. Packaged in either an 8-pin DIP or SMT option, the device is ideal for high resolution data conversion systems. The device provides ultrastable +2.5 V output with ±0.25 mV (.01%) initial accuracy and a temperature coefficient of 0.6 ppm/°C. This improvement in accuracy is made possible by a unique, patented multipoint 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 VRE3025 series the most accurate reference available.
For enhanced performance, the VRE3025 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.
Applications
The VRE3025 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 VRE3025 offers superior performance over monolithic references.
VRE3025 Data Sheet
