E3646A 60 W Dual Output Power Supply
Manufacturers
Keysight
Other Recommendations
Dual-Range Bench Power Supply (8V/3A + 20V/1.5A), High Precision, Low Noise for Electronics Development
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0-8V/3A + 0-20V/1.5A (Source: Output ratings)
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Voltage: <0.05%+10mV (Source: Programming accuracy)
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<5mVpp voltage ripple (Source: Ripple and noise spec)
| Parameter | Specification | Source |
|---|---|---|
| Output Range 1 | 0-8V/0-3A (24W) | Output ratings |
| Output Range 2 | 0-20V/0-1.5A (30W) | Output ratings |
| Voltage Programming Accuracy | <0.05% + 10mV | Programming accuracy |
| Ripple & Noise (20Hz-20MHz) | <5mVpp / <0.5mVrms | Ripple and noise spec |
Core Application Scenarios
Precision Circuit Development — Ultra-low ripple (<5mVpp) ensures clean power for sensitive analog circuits (Based on noise specs)
Microcontroller Power Testing — Dual-range outputs cover 3.3V/5V logic systems and 12V peripherals (Based on voltage ranges)
Automation Integration
Automated Test Systems — GPIB/RS232 interfaces enable remote control for burn-in testing (Product feature)
Multi-Device Synchronization — Compatible with E364x series for scalable power solutions (Product series compatibility)
Technical Deep Dive
Precision Architecture
Features "Dual-Stage Regulation + Multi-Layer Filtering" design: Primary switching pre-regulator reduces heat dissipation (efficiency >75%), followed by linear post-regulator achieving <5mVpp ripple (Source: Bench power supply design standards). Precision voltage reference (0.05% initial accuracy) combined with 16-bit DAC enables <10mV programming resolution. Multi-stage LC filtering (20Hz-20MHz bandwidth) suppresses switching noise to <0.5mVrms.
| Performance Metric | E3646A | Standard Bench PSU | Advantage |
|---|---|---|---|
| Voltage Programming Accuracy | <0.05% + 10mV | 0.1% + 25mV | 2x better precision for low-voltage circuits |
| Output Noise (20Hz-20MHz) | <0.5mVrms | 2-3mVrms | 75% lower noise for sensitive applications |
Precision Analog Circuit Powering Workflow
Connection: Output 1 (8V/3A) to op-amp power rails (±4V dual supply via center tap), Output 2 (20V/1.5A) to sensor excitation circuit
Configuration: Set Output 1 to 5.000V (precision reference), Output 2 to 10.000V (0.05% accuracy)
Verification: Measure actual output with DMM (deviation <10mV), oscilloscope confirms ripple <5mVpp
Automation: RS232 command "VOLT 3.300;OUTP ON" sets microcontroller core voltage, monitors current draw (1mA resolution)
Temperature Stability Boundary
Voltage accuracy degrades to 0.1%+15mV at temperature extremes (0°C or 40°C) (Based on operating temperature range). Mitigation: ① Maintain lab temperature at 25°C±5°C; ② For critical measurements, allow 30-minute warm-up for thermal stability.
