Keithley 2303 High Speed Precision PS w Readback, 45W, 5mA

The Keithley 2303 is a 45W high-speed precision power supply with integrated readback capability, purpose-built for dynamic load testing of battery-operated devices. It delivers 0–15V DC with ±(0.05% + 10mV) accuracy and simultaneous voltage and current monitoring, enabling precise characterization of transient power profiles in wireless communication devices, smartphones, and portable electronics. The instrument combines fast transient response—recovering from 1000% load changes in under 40µs—with exceptional voltage stability and low ripple (3mV rms typical). Dual-range current measurement captures everything from 100nA DC sensitivity to peak pulse values on signals as short as 60µs. Current sinking capability up to 2A allows emulation of rechargeable battery discharge and charging circuit validation. Remote sense with 1V maximum lead drop ensures accurate voltage delivery at device terminals. GPIB programming via IEEE-488.2 (SCPI) and five user-definable power-up states support fully automated test sequences.

– Technical Specifications

Output Voltage
• Range: 0 to +15V DC
• Output Accuracy: ±(0.05% + 10mV)
• Programming Resolution: 5mV
• Readback Accuracy: ±(0.05% + 3mV)
• Readback Resolution: 1mV
• Settling Time: 5ms to stated accuracy
• Load Regulation: 0.01% + 2mV
• Line Regulation: 0.5mV
• Stability: 0.01% + 0.5mV
• Ripple and Noise (20Hz–20MHz): 3mV rms / 8mV p-p typical

Output Current
• Maximum Continuous Output: 5A (0–9V); 3A (>9V–15V)
• Power Rating: 45W
• Source Compliance Accuracy: ±(0.16% + 5mA)
• Readback Accuracy (5A range): ±(0.2% + 400µA)
• Readback Accuracy (5mA range): ±(0.2% + 1µA)
• Readback Resolution (5A range): 100µA
• Readback Resolution (5mA range): 0.1µA
• DC Current Sensitivity: 100nA
• Pulse Measurement: Peak, average, and baseline values on pulses ≥60µs; pulse trains up to 833ms

Current Sink
• 0–5V: 2A maximum
• 5V–15V: Derate 0.1A per volt above 5V

Transient Response
• Recovery Time (1000% load change, Enhanced Mode): <40µs to within 100mV; <80µs to within 20mV
• Typical Voltage Drop: <200mV

Digital Voltmeter Input
• Range: 0 to +20V DC
• Input Impedance: 10¹⁰Ω typical
• Reading Accuracy: ±(0.05% + 3mV)
• Reading Resolution: 1mV

– Key Features

• Dual-range current measurement: 100nA to 5A with 100µA / 0.1µA resolution
• Microsecond-class transient response for dynamic load simulation
• 2A current sink (derated at higher voltages) for battery discharge emulation
• Automatic remote sense with 1V maximum lead drop per conductor
• Five user-programmable power-up configurations

– Typical Applications

• Cellular phone and wireless device power profiling
• Battery charger circuit characterization
• Portable device run-time validation under dynamic loads
• Peak current and pulse train measurement in low-power applications

– Compatibility & Integration

• GPIB interface with IEEE-488.2 (SCPI) command set
• Operating Temperature: 0° to 35°C (full power); 0° to 50°C (derated to 70%)
• Dimensions: 89mm H × 213mm W × 360mm D