Keithley 2304A

The Keithley 2304A Power Supply provides both voltage control and power consumption monitoring for automated testing of portable, battery-operated devices. The Keithley 2304A Power Supply is optimized for testing battery-operated, wireless communication devices such as cellular phones that undergo substantial load changes for very short time intervals. The Keithley 2304A Power Supply exhibits outstanding voltage stability during pulse load changes and can simultaneously measure load currents, even if they are short pulses. In addition, the Keithley 2304A Power Supply can sink cur and, thus, take on the characteristics of a discharged, rechargeable battery for testing chargers and charger-control circuitry.

Features and Specifications of the Keithley 2304A Power Supply include:

DC Voltage Output

• Output Voltage:
  • 0 to +20VDC (for Normal Output Response)
  • 0 to +15VDC (for 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:
      • <50 µs to within 100mV of previous level
      • <100 µs to within 20mV of previous level
  • Enhanced Mode:
    • Transient Recovery Time:
      • <40 µs to within 100mV of previous level
      • <80 µs to within 20mV of previous level
    • Transient Voltage Drop:
      • <100mV, typical
      • <200mV, typical
• Remote Sense: Automatic, 2V max drop in each lead. Add 2mV to the voltage load regulation specification for each 1V change in the negative output lead due to load cur change.

DC Current

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

Digital Voltmeter Input

• Input Voltage Range: 0 to +20VDC
• Input Impedance: 10O 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 Cur Measurement Operation

• Trigger Level: 5mA to 5A, in 5mA steps
• Trigger Delay: 0 to 100ms, in 10 µs steps
• Internal Trigger Delay: 25 µs
• High/Low Average Mode:
  • Measurement Aperture Settings: 33.3 µs to 833ms, in 33.3 µs steps
  • Average Readings: 1 to 100
• Burst Mode:
  • Measurement Aperture: 33.3 µs
  • 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 : 11
  • Measurement time: 850ms (840ms) to 60 seconds in 16.7ms (20ms) steps

General

• 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 (CS-1003-1))
• Power Consumption: 200VA max
• Input Power: 100V €“240V AC, 50 or 60Hz (auto detected at power-up)

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