In applications such as industrial process control and precision instrumentation, multichannel high-precision signal acquisition is a core challenge in system design.
RuiMeng Technology proudly launches the MS53175-8N: an ultra-low-noise, fast-settling, multiplexed 8/16-channel (fully differential/pseudo-differential) 24-bit Σ-Δ ADC, supporting up to 250 kSPS output rate and a channel scan rate of 50 kSPS/channel (20 μs settling time), providing a cost-effective solution for multichannel precision acquisition.
Core Advantages
01 Flexible Output Rate: 5 SPS–250 kSPS
The output data rate covers 5 SPS to 250 kSPS. Users can flexibly configure it according to application requirements, balancing low-speed high-precision and high-speed acquisition scenarios.
02 High Precision: 24-bit noise-free, INL ±2 ppm
At 20 SPS, the noise-free resolution reaches 24 bits; at 2.5 kSPS, 20.19 bits; at 250 kSPS, 17.43 bits. INL is as low as ±2 ppm of FSR (Buffer disabled), ensuring high-precision signal reconstruction.
03 Multichannel: 8 differential/16 single-ended, flexible configuration
Supports 8 fully differential or 16 single-ended inputs. Users can independently configure parameters for each channel. Built-in crosspoint multiplexer with programmable channel sequence.
04 Fast Settling: 50 kSPS/channel
The channel scan rate is up to 50 kSPS/channel, and the 20 μs settling time ensures data quickly stabilizes after multichannel switching, meeting high-speed multichannel acquisition requirements.
05 Integrated Reference and Low Power
On-chip integrated 2.5 V reference with temperature drift of only ±3 ppm/°C; 50 Hz/60 Hz common-mode rejection ratio up to 85 dB (50 ms settling time). Low-power design: only 37 mW with a 5 V supply and Buffer disabled, supporting a wide temperature range of -40°C to +125°C.
Technical Parameters
| Key Parameters | Performance Specifications |
|---|---|
| Architecture | Σ-Δ |
| Resolution (Bit) | 24 |
| Sampling Rate (Max) (SPS) | 5–250k |
| Number of Input Channels (Differential) | 8 |
| Number of Input Channels (Single-Ended) | 16 |
| Input Type | Differential/Single-Ended |
| Multichannel Configuration | Multiplexed |
| Interface | SPI |
| Operating Voltage Range (V) | Analog Supply 1: 4.5–5.5
Analog Supply 2: 2–5.5 Digital Supply: 2–5.5 |
| Operating Current (Typ) (mA) | 6.95–23.2 |
| Package | QFN40 |
(Note: Refer to the datasheet for specifics.)
Application Scenarios
Multichannel Analog Acquisition
Industrial field multichannel analog inputs need to simultaneously acquire signals from various sensors such as temperature, pressure, and flow. The MS53175-8N’s 8/16-channel configuration can cover multichannel input requirements. The channel scan rate of 50 kSPS/channel ensures fast data settling during multichannel polling, and 24-bit high precision ensures the accuracy of weak signal acquisition.
Instrumentation and Precision Measurement
Precision instruments such as chromatographs and spectrometers require multichannel acquisition. The MS53175-8N supports independent configuration per channel, a built-in 2.5 V low-temperature-drift reference (±3 ppm/°C), and 50 Hz/60 Hz power-line rejection up to 85 dB, ensuring reliable precision measurement data.
With features such as 24-bit high precision, flexible 8/16-channel configuration, 50 kSPS/channel fast settling, and 37 mW low power consumption, the MS53175-8N provides a cost-effective multichannel ADC solution for precision instrumentation.
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