A converter test system

Hardware

DPS16 - Power supply module

DPS16: Dual channel Power Supply module

DPS16

Dual Channel Power Supply
Low output noise
16 bit resolution
+/-12V output range
2 or 4-wire output configuration
200mA max. with programmable current limit
Modulation capability for PSRR measurements
10ms settling time

The DPS16 is a dual-channel power supply with very low output noise and no ripple. The output current can be up to 200mA and has a programmable current limit. The 4 wire capability provides an excellent load regulation.

Because the DPS16 is a fully linear design the output noise is exceptionally low while there are no ripple components as usually seen with switched mode designs.

The unit has voltage and current read back on both channels with 16-bit resolution.

Output noise at 5V/100mA, BW= DC to 100kHz

1ms / division

A targeted feature of the DPS-16 is the ability to modulate the output allowing to perform PSRR measurements.

The unit is very suitable for precision analog and Mixed Signal measurements.

Block diagram

Specifications

General

Channels	2
Resolution	16 bit
Output range	-12V to +12V
Output configuration	2 or 4-wire
Output current	200mA
Current Limit Range	10mA - 200mA
Current Limit Resolution	220μA
Settling time	10ms
Measurement Modes	Voltage, Current
Measure Resolution	16-bit

Accuracy

Accuracy	±(4mV+0.2% of Value)
Load regulation (typical)	10μV/mA
Output noise (typical)	18μVrms (DC to 100kHz)
0.1Hz to 10Hz noise (typical)	15μVpp
Current read back accuracy	± (1mA +1% of reading)

Output modulation

Voltage Output Modulation	1mHz - 1kHz
Modulation slew rate	1V/ms max.