Keysight / Agilent / HP E1503A 8-Channel Programmable Filter/Gain SCP Module

The Keysight/Agilent/HP E1503A is an 8-channel programmable filter/gain signal conditioning plug-on (SCP) module for VXI mainframe systems. Each channel delivers independent low-pass filtering and gain adjustment, enabling precise signal conditioning across low-level voltage, temperature, resistance, and strain measurement applications. The module combines programmable 2-pole filters with three gain settings to optimize signal acquisition for diverse sensor types and dynamic ranges. ## Technical Specifications • **Channels:** 8 independent channels
• **Filter Type:** Programmable 2-pole low-pass with cutoff frequencies of 2 Hz, 10 Hz, 100 Hz, plus pass-through mode (1.5 kHz effective bandwidth)
• **Gain Settings:** ×1, ×8, ×64
• **Input Voltage Ranges:** ±0.25 V, ±2 V, ±16 V
• **Output Range:** 3.9 mV to 16 V full-scale
• **Maximum Operating Input:** ±42 V peak
• **Gain Temperature Coefficient:** 15 ppm/°C
• **Offset Temperature Coefficients:** 0.16–0.39 µV/°C (dependent on temperature range and filter setting)
• **Typical Offsets (×8 Gain, filter ON):** 2 Hz filter 13 µV, 10 Hz filter 9.5 µV, 100 Hz filter 6.8 µV, filter off 6.3 µV ## Key Features • Per-channel input over-voltage protection and open transducer detection
• Flexible gain and filter configuration for each channel independently
• Low offset drift supports precision low-level signal measurement
• SCP module form factor integrates into standard VXI mainframes ## Typical Applications • Low-level voltage measurements
• Thermocouple, thermistor, and RTD temperature acquisition
• Resistance measurements
• Strain measurements (with E1506A or E1507A Strain Completion SCPs) ## Compatibility & Integration Compatible with Agilent/HP VXI mainframe modules including the E1413C 64-Channel Scanning A/D Converter, E1415A Algorithmic Closed Loop Controller, E1419A Multifunction Measurement and Control Module, E1422A Remote Channel Multi-function DAC Module, and HP E1313A/E1413A/B. Pairs with companion modules such as the E1505A 8-Channel Current Source SCP for expanded measurement capability.