DRS20
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The DRS20 is a dual-channel reference source offering ultra high precision and stability and provides a +/-10V output. The output current can be up to 10mA and the 4 wire connection provides a 1μV/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.
0.1Hz to 10Hz output noise at 5V / 5mA
1s / division
The output has a very low noise level. Special attention has been paid to low frequent noise (<10Hz) since this is very difficult to filter away afterwards.
The unit is very suitable as the reference source for data converter testing.
conditions: after 1 hour warm-up, TA=25°C
General
Channels | 2 |
Resolution | 20 bit |
Output range | -10V to +10V |
full accuracy output current | 10mA |
Maximum Output current | 30mA typical |
Output configuration | 2 or 4-wire |
Settling time for full accuracy | 20ms (*) |
(*) The settling time is programmable to allow a trade-off between settling time and accuracy.
Accuracy
Accuracy | ±(25μV + 10ppm of Value) |
Linearity (typical) | 2ppm |
Temperature drift (typical) | ±(2μV + 1ppm of value)/°C |
Load regulation (typical) | 1μV/mA |
Output noise (typical) | 5μVrms (DC to 100kHz) |
0.1Hz to 10Hz noise (typical) | 4μVpp |
Voltage measure resolution | 2.7μV |
Calibration output
Connector style | SMB |
Output voltage | 7.2V |