Description
Agilent E1413C | 64-Channel High-Speed ADC Module, In Stock
Architect’s Product Breakdown
The Agilent E1413C operates as a high-density, precision 64-channel analog-to-digital converter and multiplexer module housed in a C-size VXIbus format. Widely deployed in aerospace, defense, and large-scale industrial automated test systems (ATE), this module is engineered to handle complex multi-channel data logging, structural testing, and temperature profiling. It combines precision signal conditioning, cold-junction compensation (CJC) for thermocouples, and a fast 16-bit A/D converter directly on a single VXI card.
Because VXIbus measurement systems rely heavily on rigid chassis integration and software instrument drivers, matching the exact part number (E1413C) is crucial when replacing hardware in legacy test racks. Swapping a unit requires careful backplane insertion to prevent pin bending, along with proper VXI plug-and-play driver configuration and address assignment within the system controller.
E1413C
Key Technical Specifications
| Parameter | Specification |
| Series | Agilent / HP VXIbus Modular Instrumentation |
| Model / Part Number | E1413C |
| Form Factor | C-Size, 1-slot VXIbus module |
| Channel Capacity | 64 single-ended or 32 differential analog input channels |
| A/D Converter Resolution | 16-bit successive approximation ADC |
| Maximum Sampling Rate | Up to 100 kSa/s (100,000 samples per second) aggregate |
| Input Ranges | Programmable gains supporting low-level voltage and thermocouple inputs |
| Built-In Features | Cold-junction compensation (CJC), auto-calibration, and strain/thermocouple formatting |
| Communication / Bus | VXIbus backplane interface (Command Module / Embedded Controller driven) |
Field Engineer’s Pitfall Guide
- WARNING: VXI Chassis Power Overload. Inserting multiple high-density modules without verifying that the mainframe power supply can handle the aggregate DC current draw will trigger thermal or over-current power shutdowns.
- WARNING: Backplane Pin Damage. Forcing the E1413C module into a VXI slot at an angle can bend the delicate multi-pin DIN connectors on the rear backplane, causing permanent bus communication failure.
- WARNING: Ground Loops in Analog Inputs. Failing to isolate common-mode voltages or improper shielding on multi-channel analog input wiring will inject severe AC line noise and error offsets into low-level thermocouple readings.
- Field Anecdote: I remember an aerospace test rack throwing intermittent VXI bus timeout errors because a replacement E1413C module was inserted into a chassis slot with a slightly warped guide rail, preventing the backplane pins from seating with proper alignment.
QA & Testing SOP
- Visual & Origin Verification: Inspect the metal shielding cover, front-panel terminal blocks, and rear VXI DIN connector pins for bent pins, corrosion, or structural wear, and verify original Agilent/HP nameplate data.
- Live Test Bench Environment: Install the module into a certified C-size VXI test mainframe connected to an embedded system controller or MXI bus interface running VISA/SICL instrument control software.
- Diagnostics & Calibration: Execute self-test routines through the VXI resource manager, verify channel-to-channel isolation, and apply precision DC voltage standards across inputs to check 16-bit ADC linearity and calibration accuracy.
- Anti-Static & Protective Packaging: Enclose the module in heavy anti-static shielding material and pack it securely inside high-density structural foam to protect the rear connector pins and front interface headers during transit.
Technical FAQ
What software is required to communicate with the Agilent ?
Communication requires a standard VISA-compatible I/O library (such as Keysight IO Libraries Suite) along with VXI plug-and-play instrument drivers to interface with test software like LabVIEW, VEE, or C++.
Can the directly measure thermocouples without external conditioning?
Yes. The module features built-in cold-junction compensation (CJC) and differential input channels specifically designed for direct thermocouple and low-level analog signal acquisition.
Is the still actively manufactured by Keysight / Agilent?
No. The is obsolete and discontinued. Finding verified new-surplus or certified refurbished hardware is the standard path for sustaining legacy VXI test systems.
What causes a VXI chassis to fail to recognize the installed module?
Non-recognition is typically caused by incorrect logical address switch settings on the module, unseated rear backplane connectors, or an uninitialized VXI resource manager routine.
