The Keysight Technologies (Agilent) E3646A is a clean, reliable 54W dual-output programmable DC power supply designed for versatile benchtop and system testing. Combining low ripple and noise with integrated programming and measurement capabilities, it delivers precise power control through standard GPIB and RS-232 interfaces.

Specifications

General

ParameterValue
InterfacesGPIB (IEEE-488) and RS-232

Physical

ParameterValue
Dimensions (W×H×D)212.8 mm W × 133.0 mm H × 348.3 mm D
Weight8.2 kg

Output Ratings

ParameterValue
Number of Outputs2
Output 1 Range 1 Voltage0 to 8 V
Output 1 Range 1 Current0 to 3 A
Output 1 Range 2 Voltage0 to 20 V
Output 1 Range 2 Current0 to 1.5 A
Output 2 Range 1 Voltage0 to 8 V
Output 2 Range 1 Current0 to 3 A
Output 2 Range 2 Voltage0 to 20 V
Output 2 Range 2 Current0 to 1.5 A
Maximum Total Output Power60 W

Load and Line Regulation

ParameterValue
Voltage Load Regulation<0.01% + 3 mV
Current Load Regulation<0.01% + 250 µA
Voltage Line Regulation<0.01% + 3 mV
Current Line Regulation<0.01% + 250 µA

Ripple and Noise

ParameterValue
Normal Mode Voltage Ripple (RMS)<0.5 mVrms
Normal Mode Voltage Ripple (Peak-to-Peak)<5 mVpp
Normal Mode Current Ripple (RMS)<4 mArms
Common Mode Current (RMS)<1.5 µArms
Noise Bandwidth Limit20 Hz to 20 MHz

Programming Accuracy

ParameterValue
Output 1 Voltage Programming Accuracy<0.05% + 10 mV
Output 1 Current Programming Accuracy<0.2% + 10 mA
Output 2 Voltage Programming Accuracy<0.05% + 10 mV
Output 2 Current Programming Accuracy<0.2% + 10 mA

Readback Accuracy

ParameterValue
Output 1 Voltage Readback Accuracy<0.05% + 5 mV
Output 1 Current Readback Accuracy<0.15% + 5 mA
Output 2 Voltage Readback Accuracy<0.05% + 5 mV
Output 2 Current Readback Accuracy<0.15% + 5 mA

Resolution

ParameterValue
Meter Display Current Resolution1 mA

Transient Response and Settling Time

ParameterValue
Transient Recovery Time<50 µs
Transient Voltage Settling Bandwidthwithin 15 mV of nominal value

Protection Features

ParameterValue
Overvoltage Protection Accuracy±(0.5% + 0.5 V)
Overvoltage Protection Response Time<1.5 ms

System and Front Panel Features

ParameterValue
Remote Sensing Maximum Voltage Drop1 V per lead
State Storage Capacity5 save/recall states

Connectivity and Programming

ParameterValue
GPIB InterfaceYes (IEEE-488)
RS-232 InterfaceYes (9-pin D-sub)
Command Language SupportSCPI (Standard Commands for Programmable Instruments)

Power Requirements

ParameterValue
AC Input Frequency Range47 to 63 Hz

Physical Characteristics

ParameterValue
Form FactorHalf-rack 2U
Cooling MechanismFan cooled (low noise)

Environmental and Safety Compliance

ParameterValue
Operating Temperature Range0°C to 40°C (full specs), 40°C to 55°C (derated)
Storage Temperature Range-20°C to 70°C
Maximum Operating HumidityUp to 80% RH (non-condensing)
Recommended Calibration Interval1 year

Temperature Coefficient

ParameterValue
Voltage Temperature Coefficient<0.01% + 3 mV per °C

Performance

ParameterValue
Recommended Warm-up Time1 hour

Power

ParameterValue
AC Input Voltage Options100 Vac  10% (Opt 0E9) / 115 Vac  10% (Opt 0EM) / 230 Vac  10% (Opt 0E3)

Technology

Linear

Applications

Test and Measurement