The Keysight N7952A is an Advanced Power System (APS) N7900 Series dynamic DC power supply, offering 1000 W of clean, high-speed power. Designed for applications requiring high-speed dynamic sourcing and measurement, it features 18-bit digitizers, fast transient response, and versatile power-sinking capabilities up to 100% of its rating with an optional power dissipator.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | GPIB, USB 2.0, LAN (LXI Class C compliant), Digital I/O |
| Display | Color TFT LCD display showing voltage, current, and status |
| Command Language | SCPI |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 100 VAC to 240 VAC (±10%), 50/60 Hz, single phase |
| Operating Temperature | 0 to 55 °C |
| Dimensions (W×H×D) | 425.6 mm × 88.1 mm × 558.3 mm |
| Weight | 14.1 |
Core Signal and Electrical Performance
| Parameter | Value |
|---|---|
| Output Voltage Rating | 0 to 40 V |
| Output Current Rating | 0 to 25 A |
| Output Power Rating | 1000 W |
| Voltage Programming Accuracy | 0.03% + 15 mV |
| Current Programming Accuracy | 0.04% + 15 mA |
| Voltage Load Regulation | < 1.5 mV |
| Current Load Regulation | < 2 mA |
| Voltage Line Regulation | < 0.5 mV |
| Current Line Regulation | < 1 mA |
| Voltage Ripple & Noise (RMS, 20 Hz to 20 MHz) | 1 mV |
| Voltage Ripple & Noise (Peak-to-Peak, 20 Hz to 20 MHz) | 9 mV |
| Current Ripple & Noise (RMS, 20 Hz to 20 MHz) | 15 mA |
| Standard Sinking Current (Continuous) | 2.5 A (10% of rated current) |
| Maximum Sinking Current (with N7909A) | 25 A (100% of rated current with external N7909A Power Dissipator) |
| Overvoltage Protection (OVP) Range | 0.5 V to 44 V |
| Overcurrent Protection (OCP) Range | 0.5 A to 27.5 A |
Measurement Capabilities and Timing
| Parameter | Value |
|---|---|
| Voltage Measurement Accuracy | 0.03% + 15 mV |
| Current Measurement Accuracy | 0.04% + 15 mA |
| Transient Voltage Recovery Time | < 100 µs (for voltage recovery to within 100 mV after a 50% to 100% load change) |
| Digitizer A/D Converter Resolution | 18-bit |
| Maximum Digitizing Sampling Rate | 200 kHz (5 µs interval) |
| Digitizer Buffer Size | 512k samples per measurement trace |
| Command Processing Time | < 2 ms |
Power and Electrical Specifications
| Parameter | Value |
|---|---|
| Power Consumption (Maximum) | 2250 VA |
Physical and Mechanical Attributes
| Parameter | Value |
|---|---|
| Form Factor | Benchtop / Rackmount (2U height) |
| Rackmount EIA Unit Height | 2 U |
| Cooling Method | Fan cooled, variable speed, front-to-rear airflow |
Environmental and Compliance Standards
| Parameter | Value |
|---|---|
| Storage Temperature Range | -20 to 70 °C |
| Relative Humidity Limits | Up to 95% non-condensing |
| EMC Compliance | Conforms to European EMC Directive, IEC/EN 61326-1 |
| Safety Standards | Complies with European Low Voltage Directive, UL 61010-1, CSA C22.2 No. 61010-1 |
Programming Resolution
| Parameter | Value |
|---|---|
| Voltage Programming Resolution | 0.8 mV |
| Current Programming Resolution | 0.12 mA |
Measurement Resolution
| Parameter | Value |
|---|---|
| Voltage Measurement Resolution | 0.17 mV |
| Current Measurement Resolution | 0.06 mA |
Transient Performance
| Parameter | Value |
|---|---|
| Voltage Upward Transition Time | ≤ 0.5 ms (10% to 90% of full scale with resistive load) |
| Voltage Downward Transition Time | ≤ 0.35 ms (90% to 10% of full scale with resistive load) |
Isolation
| Parameter | Value |
|---|---|
| Maximum Float Voltage | ±240 VDC (from chassis ground) |
Analog & Digital I/O
| Parameter | Value |
|---|---|
| Digital I/O Port | 15-pin connector |
Environmental
| Parameter | Value |
|---|---|
| Maximum Operating Altitude | 2000 m |
General Features
| Parameter | Value |
|---|---|
| LXI Compliance | LXI Class C / LXI Core 2011 |
| Parallel Operation | Up to 4 units in parallel (using active current sharing) |
| Series Operation | Not supported |
Output Specifications
| Parameter | Value |
|---|---|
| Programmable Output Resistance Range | 0 to 1.6 Ω |
| Common Mode RF Current (RMS) | < 1 mA (20 Hz to 20 MHz) |
| Common Mode RF Current (Peak-to-Peak) | < 15 mA (20 Hz to 20 MHz) |
Sinking Specifications
| Parameter | Value |
|---|---|
| Active Downprogramming Peak Sinking Power | 1000 W (without N7909A) |
| Active Downprogramming Continuous Sinking Power | 100 W (without N7909A) |
| Active Downprogramming Continuous Sinking Power with N7909A | 1000 W |
AC Input
| Parameter | Value |
|---|---|
| AC Input Voltage Range | 85 VAC to 264 VAC |
| Nominal AC Input Voltage | 100 VAC to 240 VAC |
| AC Input Frequency Range | 47 Hz to 63 Hz |
| AC Input Power Factor | 0.99 (at nominal input and full load) |
Digitizer / Measurement
| Parameter | Value |
|---|---|
| Digitizer Sampling Interval Range | 5 µs to 10 s |
Transient Response
| Parameter | Value |
|---|---|
| Transient Voltage Recovery Settling Band | 100 mV (for 50% to 100% load change) |
Technology
Switching DC Power Supply with Active Down-programmer
Applications
Dynamic current profile testing, battery emulation, high-speed ATE power sourcing, and aerospace/defense test systems