The ASCD-424A is used to condition and digitize up to 24 analog differential-ended channels. Single-ended configurations are possible by enabling programmable pull-down resistors on any of the negative inputs.
Key Features
- 24 differential ended input channels
- Ordering input range from ±100 mV to ±40V
- High accuracy (0.01% FSR typical)
- High input resistance (>1 MΩ) when on/off for /100M, /1V, and /10V variants
- 16-bit simultaneous sampling with three configurable output streams on each channel
- User-defined linearization and compensation for errors in the entire measurement chain
Applications
- Differential voltage measurement
The ADAU-2016 is a 16 user-slot Axon chassis, which along with the housing and backplane, includes an isolated 100W power supply for the controller and user modules.
The ASCD-424A is used to condition and digitize up to 24 analog differential-ended channels. Single-ended configurations are possible by enabling programmable pull-down resistors on any of the negative inputs.
The ABIM-553A is a MIL-STD-1553 bus monitor, which can monitor up to four dual redundant busses.
ASCD-424A Differential Ended ADC (5 kHz b/w) - 24ch at 20 ksps
The ASCD-424A is used to condition and digitize up to 24 analog differential-ended channels. Single-ended configurations are possible by enabling programmable pull-down resistors on any of the negative inputs.
At the heart of the ASCD-424A is a hard-wired state machine that oversamples all channels at a rate between 40 ksps and 80 ksps and digitally filters any noise above the user-programmable cutoff frequency. This is achieved using cascaded, 15-tap FIR filters with output rate decimation, followed by a final FIR or IIR filter. If IIR filtering mode is selected, the last digital filter in the filtering chain is an 8th or 16th order (selectable) Butterworth filter. If FIR mode is selected, the last digital filter in the filtering chain is a 49-tap Kaiser window, Beta 6 filter.
There are three independently configurable output streams per channel, allowing different sample rate, cutoff, and filter type to be selected for each output stream.
All signals are sampled simultaneously. When several channels are sampled at different sampling rates, at the start of an acquisition cycle all channels are aligned.
Aerospace Instrumentation Brochure
Modern aerospace instrumentation systems can be highly complex, and it can be difficult to know how to meet program needs. It’s not unusual for requirements to change during a campaign and cause significant delays, and data must be captured reliably no matter what – otherwise expensive additional flights will be needed or months of program data could be lost. Read our brochure to learn how you can reduce your risk with commercial off-the-shelf (COTS) solutions.
Axon ADAU Data Acquisition Unit (DAU) Product Family Brochure
For airborne applications where reliability and size, weight, and power (SWaP) are critical, the Curtiss-Wright Axon ADAU family of data acquisition units (DAU) are ready to take flight. Designed leveraging our decades of experience as a trusted, proven leader, ADAUs are future-proof, SWaP-optimized, and available in a variety of flexible configurations to meet your exact program requirements.