Low-noise fixed-voltage (12 V) power supply for optimal operation of precise and accurate instrumentation
The PS1112S by CAEN ELS is a single-output (+12 V) mixed switching-linear power supply that is designed in order to obtain low-noise operation and high efficiency and it is especially suited for precision systems and devices where switching power supplies could corrupt measuring noise, accuracy and precision.
The power supply is housed in a robust and compact stainless steel box that can be placed next to the supplied device in order to reduce cable lengths and minimize consequent possible noise pick-up.
The maximum output current for the PS1112S is rated at 1.2 A with derating curves under a certain threshold of the AC mains input voltage.
CAEN ELS uses the PS1112S to supply the TetrAMM series of multi-channel electrometers / picoammeters in order to obtain the rated specifications.
The specific design with a cascaded switching and a linear regulation power stage allows reaching a total noise and ripple value in the DC – 1 MHz range of 0.003 % RMS and of 0.025 % peak-to-peak.
Model
WPS1112SXAAA
Output Voltage
+12 V
Output Voltage Tolerance
11.65 V - 12.35 V
Maximum Output Power
14.4 W
Maximum Output Current
1.2 A
Output Ripple + Noise (DC - 1 MHz)
0.003 % RMS
0.025 % PEAK-PEAK
AC Line Voltage Input
90 - 260 VAC
AC Line Voltage Frequency
47 - 63 Hz
Input to Output Isolation
3 kV
Output to Earth-Case Isolation
500 V
Hold-up Time - typ.
16 ms @ 115 V
Cooling
Natural air convection
Indicators
1 LED (+12 V Power Good)
Protections
Output Short-Circuit
Output Over-Voltage
Cable Length - standard
3 m
Dimensions
136.4 x 41 x 90.7 mm
Maximum Weight
600 g
Ordering code
Description
Action
WPS1112SXAAA
PS1112S, AC/DC Single Output +12 V, 1.2 A, Low-Noise Power Supply with 3-m output cable
Last reviewed: 2024-09-02 ⓘ More infoRevision: 2
No firmware or software available.
