Applicos: DRS20 20-Bit Dual Reference Source

DRS20 20-Bit Dual Reference Source


Product Introduction

DRS20 – 20 Bit Dual Channel Reference Source
0.1 Hz to 10 Hz output noise at 5 V / 5 mA

The DRS20 is a dual-channel reference source offering ultra high precision and stability and provides a +/-10 V output. The output current can be up to 10 mA and the 4 wire connection provides a 1 µV/mA load regulation. The high precision and stability is achieved by using a temperature controlled voltage reference. All internal nodes are calibrated using a built in 24-bit precision DVM that continuously checks the internal nodes relative to this reference. Therefore the accuracy is only determined by the temperature controlled voltage reference. This ensures a negligible drift when sourcing over a long period of time. The same DVM can be used to measure external voltages with extremely high precision.
The output has a very low noise level. Special attention has been paid to low frequent noise (<10 Hz) since this is very difficult to filter away afterwards. The unit is very suitable as the reference source for data converter testing.

Key Features

• Key Features
• Ultra High precision DC source
• Dual channel
• 20 bit resolution
• +/-10 V output swing
• +/-10 mA max. current,1 µV/mA load regulation
• 2 ppm Linearity
• 5 µVrms wide band output noise (DC-100 kHz)
• High precision voltage measure capability
• For ATX series hardware platform

Technical Specifications

Channels 2
Resolution 20 bit
Output range -10 V to +10 V
full accuracy output current 10 mA
Maximum Output current 30 mA typical
Output configuration 2 or 4-wire
Settling time for full accuracy 20 ms (*)

(*) The settling time is programmable to allow a trade-off between settling time and accuracy.


Accuracy ±(25 µV + 10 ppm of Value)
Linearity (typical) 2 ppm
Temperature drift (typical) ±(2 µV + 1 ppm of value)/ºC
Load regulation (typical) 1 µV/mA
Output noise (typical) 5 µVrms (DC to 100 kHz)
0.1 Hz to 10 Hz noise (typical) 4 µVpp
Voltage measure resolution 2.7 µV

Calibration output

Connector style SMB
Output voltage 7.2 V

Additional information


Product Code


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