Keithley 2304A Power Supply: Precision and Performance for Battery Testing

The Keithley 2304A Power Supply is engineered for voltage control and power consumption monitoring, making it an essential tool for automated testing of portable, battery-operated devices. Its optimal design allows for effective testing of battery-operated wireless communication devices, particularly cellular phones, which experience significant load changes over brief time intervals. Experience exceptional voltage stability during pulse load changes while simultaneously measuring short-duration load currents.

Key Features and Specifications

DC Voltage Output

• Output Voltage:
  • 0 to +20VDC (Normal Output Response)
  • 0 to +15VDC (Enhanced Output Response)
• Output Accuracy: ±(0.05% + 10mV)
• Programming Resolution: 5mV
• Readback Accuracy: ±(0.05% + 10mV)
• Readback Resolution: 1mV
• Output Voltage Settling Time: 5ms to within stated accuracy
• Load Regulation: 0.01% + 2mV
• Line Regulation: 0.5mV
• Stability: 0.01% + 0.5mV
• Transient Response to 1000% Load Change:
  • Normal Mode:
    • Transient Recovery Time:
      • <50μs to within 100mV of previous level
      • <100μs to within 20mV of previous level
  • Enhanced Mode:
    • Transient Recovery Time:
      • <40μs to within 100mV of previous level
      • <80μs to within 20mV of previous level
    • Transient Voltage Drop:
      • <100mV, typical
      • <200mV, typical
• Remote Sense: Automatic, 2V max drop in each lead.

DC Current

• Output Current: 5A max (not intended for parallel operation)
• Compliance Accuracy: ±(0.16% + 5mA)
• Programmed Compliance Resolution: 1.25mA
• Readback Accuracy:
  • 5A range: ±(0.2% + 1mA)
  • 5mA range: ±(0.2% + 1μA)
• Readback Resolution:
  • 5A range: 100μA
  • 5mA range: 0.1μA
• Current Sink Capacity:
  • 3A max (Normal Output Response)
  • 1A (Enhanced Output Response)
• Load Regulation: 0.01% + 1mA
• Line Regulation: 0.5mA
• Stability: 0.01% + 50μA

Digital Voltmeter Input

• Input Voltage Range: 0 to +20VDC
• Input Impedance: 10Ω typical
• Maximum Voltage (either input terminal) With Respect to Output Low: –3V, +22V
• Reading Accuracy: ±(0.05% + 10mV)
• Reading Resolution: 1mV

DC General

• Measurement Time Choices: 0.01 to 10 PLC, in 0.01PLC steps
• Average Readings: 1 to 10
• Reading Time 1: 31ms, typical

Pulse Current Measurement Operation

• Trigger Level: 5mA to 5A, in 5mA steps
• Trigger Delay: 0 to 100ms, in 10μs steps
• Internal Trigger Delay: 25μs
• High/Low Average Mode:
  • Measurement Aperture Settings: 33.3μs to 833ms, in 33.3μs steps
  • Average Readings: 1 to 100
• Burst Mode:
  • Measurement Aperture: 33.3μs
  • Conversion Rate: 3600/second, typical
  • Number of Samples: 1 to 5000
  • Transfer Samples Across IEEE Bus in Binary Mode: 4800 bytes/second, typical
• Long Integration Mode:
  • Measurement time: 850ms to 60 seconds in 16.7ms steps

General Specifications

• Isolation (Low-Earth): 22VDC max
• Programming: IEEE-488.2 (SCPI)
• User-Definable Power-Up States: 5
• Rear Panel Connector: 8-position quick disconnect terminal block for output (4), sense (2), and DVM (2)
• Relay Control Jack: 2-channel, sink 150mA max, 15V max (accepts 0.173 in. Bantam-type plug)
• Power Consumption: 200VA max
• Input Power: 100V–240V AC, 50 or 60Hz (auto detected at power-up)