The National Instruments PXI-6040E is a multifunction data acquisition module designed for PXI systems. It delivers 12-bit analog acquisition with 16 single-ended or 8 differential input channels, dual analog outputs, 8 digital I/O lines, and two 24-bit counter/timers. Sampling reaches 500 kS/s on analog inputs with settling times of 600 kHz (small signal) and 350 kHz (large signal). The module incorporates an NI PGIA amplifier with temperature drift protection minimizing measurement error to less than 0.0006% of reading per °C.
Technical Specifications
Analog Inputs
• 16 channels single-ended or 8 channels differential
• 12-bit resolution
• Sampling rate: 500 kS/s
• Input ranges: Multiple options up to 15 ranges, including sub-50 mV capability
• Input impedance: 100 GΩ parallel with 100 pF
• Input protection: ±25/15 V on analog input channels
• Input bias current: ±200 pA
• Input offset current: ±100 pA
• CMRR: 90 dB (gain 0.5), 95 dB (gain 1), 100 dB (gain ≥2), DC to 60 Hz
• Settling time: 600 kHz (–3 dB small signal), 350 kHz (1% THD large signal)
• Pregain error: ±16 µV maximum (post-calibration)
• Postgain error: ±0.8 mV maximum (post-calibration)
• Temperature drift: <0.0006% of reading per °C
Analog Outputs
• 2 channels
• 12-bit resolution
• Output range: ±10 V
• Output drive: 5 A source/sink at ±10 V
• Slew rate: 20 V/µs
• Short-circuit protection to ground
Digital I/O
• 8 lines
Counter/Timers
• 2 channels, 24-bit resolution
– Key Features
• Analog and digital triggering for event-based acquisition
• 68-pin male 0.050 D-type I/O connector
• Software-controlled single-point input capability
• NI PGIA amplifier ensures stable performance across gain configurations
– Typical Applications
• Data logging and sensor measurements
• Automated test and measurement
• Process monitoring
– Compatibility & Integration
Supported through NI-DAQmx driver software with LabVIEW, LabWindows/CVI, and Measurement Studio.
