The Keysight (Agilent/HP) E3648A is a programmable, dual-output DC power supply designed for benchtop and system applications. It delivers up to 90 watts of total clean and reliable power across two isolated channels, each featuring dual-range output flexibility (0-8V/5A or 0-20V/2.5A). Part of the E3640 series, it features low ripple and noise, built-in remote sensing, and standard GPIB and RS-232 interfaces with SCPI command support.

Specifications

General

ParameterValue
InterfacesGPIB (IEEE-488), RS-232
DisplayVacuum Fluorescent Display (VFD)

Physical

ParameterValue
Power Supply100 / 115 / 230 Vac ±10%, 47 - 63 Hz
Operating Temperature0 to 40
Dimensions (W×H×D)212.8 × 88.1 × 348.3
Weight9.2 kg
Output TerminalsFront panel binding posts and rear panel screw-terminal block

Output Ratings

ParameterValue
Number of Outputs2
Maximum Output Power100 W (50 W per output)
Output 1 & 2 Range 1 (Low)0 to 8 V / 0 to 5 A
Output 1 & 2 Range 2 (High)0 to 20 V / 0 to 2.5 A

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 (20 Hz to 20 MHz)

ParameterValue
Normal Mode Voltage (Peak-to-Peak)< 5 mVpp
Normal Mode Voltage (RMS)< 0.5 mVrms
Normal Mode Current (RMS)< 4 mArms
Common Mode Current< 1.5 µArms

Programming Accuracy

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

Readback Accuracy

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

Transient Response

ParameterValue
Transient Response Time< 50 µs (to recover within 15 mV for a 50% load change)

Protection Features

ParameterValue
Overvoltage Protection (OVP)Yes

Connectivity and Interfaces

ParameterValue
Programming Language StandardSCPI
Remote Sense CapabilityYes

Environmental and Compliance

ParameterValue
Storage Temperature-20°C to 70°C

Physical Characteristics

ParameterValue
Cooling SystemFan cooling

Performance

ParameterValue
Overvoltage Protection (OVP) Accuracy±(0.5% + 0.5 V)
Command Processing Time< 50 ms
Warm-up Time1 hour
Temperature Coefficient (Voltage)±(0.01% + 3 mV) per °C
Temperature Coefficient (Current)±(0.02% + 3 mA) per °C

Electrical

ParameterValue
Isolation Voltage±240 Vdc maximum (any terminal to earth ground)

Features

ParameterValue
Store/Recall Capacity5 states

Environmental

ParameterValue
Operating Humidity0 to 80% RH at 40 °C (non-condensing)
Maximum Operating Altitude2000 m

Power

ParameterValue
AC Input (Standard)115 VAC ±10%, 47 to 63 Hz
AC Input (Option 0E3)230 VAC ±10%, 47 to 63 Hz
AC Input (Option 0E9)100 VAC ±10%, 47 to 63 Hz

Compliance

ParameterValue
Safety ComplianceCSA 22.2 No. 1010.1, IEC 1010-1
EMC ComplianceCISPR-11, EN 55011, EN 50082-1

Technology

Linear

Applications

Test and Measurement / Benchtop / System Integration