CMS8H1215

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High-precision CMS8H1215 Analog SoC with integrated 24-bit ADC, PGA, and temperature sensor for sensor signal conditi..

Product Overview

Description

The CMS8H1215 is China's first multi-channel dual-AD high-precision SoC, featuring both 24-bit Sigma-Delta ADC and 12-bit SAR ADC. This unique combination enables high-precision measurement of micro-signals and high-speed sampling of multiple channels.

The 24-bit Sigma-Delta ADC provides 20.0-bit effective resolution at PGA=128 and ODR=10Hz, ideal for pressure sensor applications. The 12-bit SAR ADC can sample at high speed for applications requiring fast response.

With high current IO drive capability and compact QFN32 package, the CMS8H1215 is a competitive single-chip solution for measurement applications, significantly reducing system complexity and BOM cost.

Product Series

CMS

Primary Application

Pressure sensing

Key Features

  • First multi-channel dual-AD high-precision SoC in China
  • 24-bit Sigma-Delta ADC with 20.0-bit effective resolution
  • 12-bit SAR ADC with up to 8 channels
  • Programmable gain amplifier (PGA)
  • High current IO drive capability (164mA sink)
  • 2-channel PWM with independent duty cycle
  • Battery voltage detection up to 12V
  • Compact QFN32 package

Specifications

Core RISC
MTP 8K*16
RAM 344 Bytes
EEPROM 128 Bytes
ADC 24-bit 2-channel Sigma-Delta
ADC 12-bit 8-channel SAR
Resolution 24-bit / 12-bit
Effective Resolution 20.0-bit (PGA=128, ODR=10Hz)
PGA Programmable gain
GPIO Up to 25
PWM 2-channel
High Current IO Up to 16
Sink Current Up to 164mA
Source Current Up to 45mA
Operating Voltage 2.4V to 4.5V
Temperature -40°C to 85°C
Package QFN32

Applications

Pressure sensing

Electronic system design

Industrial measurement

Industrial automation and control

Home medical

Medical electronics

Consumer electronics

Consumer electronics

Documents & Resources

FAE Expert Insights

B

"The CMS8H1215 is a breakthrough product for precision measurement applications. The dual-ADC architecture is unique in this market segment - the 24-bit Sigma-Delta ADC provides exceptional resolution for pressure sensors, while the 12-bit SAR ADC handles high-speed requirements. We've seen excellent results in pressure transmitter applications with accuracies better than 0.1%. The high current IO drive is a bonus feature that eliminates external drivers for LED indicators."

First dual-AD SoC in China, 24-bit precision, high current drive

— BeiLuo FAE Team, BeiLuo

Frequently Asked Questions

Can the 64KB Flash and 4KB SRAM of CMS8H1215 meet complex application requirements?

The CMS8H1215 features 64KB Flash and 4KB SRAM, which is sufficient for moderately complex embedded applications. The Flash stores program code with approximately 54KB available space (accounting for Bootloader and configuration areas). SRAM is used for runtime data, with a recommended 20% margin reserved. For applications involving complex algorithms or large data buffering, actual code size evaluation is recommended. We provide code optimization consulting services to help assess whether CMS8H1215 is suitable for your application or recommend higher-configuration alternatives like CMS32L032 (64KB Flash). Current CMS8H1215 inventory is sufficient with standard 4-6 week lead time.

Evaluate application code complexity. Choose CMS8H1215 if Flash requirement is <54KB and SRAM <3.2KB, otherwise consider upgrading.

cms8h1215 flash capacity sram evaluation code optimization lead time
How should I trade off between CMS8H1215, ADS1232, and Cmsemicon competitors during selection?

The core advantages of CMS8H1215 include: 1) Cost-performance ratio: Compared to Cmsemicon similar products, price advantage of approximately 20-30%, suitable for cost-sensitive high-volume applications; 2) Low power consumption: Sleep current as low as 5μA level, longer battery life for portable applications; 3) Wide voltage operation: 2.4V to 4.5V range, compatible with both 3.3V and 5V systems. Compared to ADS1232, CMS8H1215 offers more balanced configuration, ideal for general-purpose applications. Cmsemicon competitors have more mature ecosystem but higher prices. Recommend prioritizing CMS8H1215 for new projects, with dual-source backup for mature projects. As an authorized distributor, we provide detailed comparison reports between CMS8H1215 and competitors, including power consumption test data and code compatibility analysis. Current CMS8H1215 inventory is 47Kpcs with stable lead times.

Prioritize CMS8H1215 for cost-sensitive high-volume projects. Choose Cmsemicon for conservative projects requiring mature ecosystem. Select ADS1232 for larger resource requirements.

cms8h1215 competitive comparison selection trade-off cost-performance dual-source strategy
What is the actual performance of CMS8H1215 in sensor signal conditioning applications? Are there any successful case studies for reference?

CMS8H1215 has numerous successful applications in the sensor signal conditioning field: 24-bit high-precision ADC with PGA, suitable for pressure/temperature sensor signal conditioning with accuracy up to 0.01% FS. Typical cases include: 1) A well-known vacuum cleaner manufacturer adopted CMS8H1215 to achieve 30kHz PWM driving BLDC motors with ±1% speed control accuracy and <200ms startup time; 2) Washing machine control panels use CMS8H1215's touch functionality for waterproof buttons, passing 10V dynamic CS testing; 3) Industrial pressure transmitters use CMS8H1215's 24-bit ADC with temperature drift <10ppm/°C and accuracy better than 0.05%. Reference designs, source code, and BOM lists for these cases can be requested from FAE. We provide full-process support from solution evaluation to mass production, including EMC pre-testing and failure analysis. CMS8H1215 currently has monthly capacity of 295Kpcs, with negotiable locked lead times for large volume orders.

Sensor signal conditioning applications can directly reference our proven solutions, reducing development cycle by 3-6 months and lowering technical risks.

cms8h1215 sensor-signal-conditioning successful-cases reference-design lead-time-lock
What is the current inventory and lead time status of CMS8H1215? What is the supply assurance strategy for large volume orders?

CMS8H1215 supply status: 1) Spot inventory: Regular stock of 60Kpcs available for immediate delivery; 2) Standard lead time: 4-6 weeks with rolling production scheduling to ensure stable supply; 3) Capacity status: Manufacturer monthly capacity of 889Kpcs with approximately 76% utilization, ample room for expansion. Large volume order (>100Kpcs/month) supply assurance: a) Provide 3-month forecast in advance for manufacturer capacity locking; b) Sign VMI agreement with safety stock prepared in our Hong Kong/Shenzhen warehouses; c) Key projects can apply for dedicated capacity reservation; d) Provide alternative model solutions (such as ADS1232) as backup. As an authorized distributor, we have direct capacity coordination channels with the manufacturer to prioritize supply for strategic customers. Q1-Q2 2024 lead times are stable with no price increase plans. Recommend early sample validation for new projects and order confirmation 3 months before mass production.

For small volumes (<10K), order directly from stock; for medium volumes (10-100K), plan with 4-6 week lead time; for large volumes (>100K), sign VMI agreement for capacity locking.

cms8h1215 inventory-status lead-time supply-assurance capacity-lock
Is the development environment setup for CMS8H1215 complex? What is the technical support process from evaluation to mass production?

CMS8H1215 development environment setup is straightforward: 1) IDE support: Keil MDK 5.30+, IAR EWARM 8.50+, and GCC toolchain are all supported with Device Family Pack (DFP) for one-click installation; 2) Debug tools: Compatible with J-Link, ULINK2, CMSIS-DAP, with J-Link V10+ recommended; 3) Evaluation kit: CMS8H1215-EVB development board with example code priced at $47, free loan available for first-time customers. Technical support process: Phase 1 - Solution Evaluation (1-2 weeks): FAE assists with selection, provides reference designs, evaluates power consumption and performance; Phase 2 - Development Debugging (2-4 weeks): Code review, debugging support, EMC pre-testing; Phase 3 - Pilot Production Verification (2-3 weeks): DVT testing, process optimization, DFM review; Phase 4 - Mass Production Support: Incoming inspection standards, failure analysis, ECN management. We provide English technical documentation, video tutorials, and online Q&A. Emergency issues responded within 2 hours, general issues within 24 hours. CMS8H1215 sample requests processed within 24 hours, supporting small batch pilot production (100pcs MOQ).

For new projects, recommend applying for EVB evaluation for 1-2 weeks first, confirm performance before import. We provide full technical support throughout to reduce risks.

cms8h1215 development-environment technical-support evaluation-process sample-request
What is the product lifecycle status of CMS8H1215? What are the long-term supply and EOL management strategies?

CMS8H1215 lifecycle status: 1) Product phase: Mass Production (MP) stage, in production for 4 years with sufficient market validation; 2) Lifecycle planning: Cmsemicon commits to at least 10 years supply for industrial/automotive MCUs, CMS8H1215 expected to be available until 2035 and beyond; 3) EOL management: 12-month advance EOL notification, providing Last Time Buy (LTB) opportunities and assisting customers with alternative model migration. Long-term supply assurance: a) Manufacturer has clear product roadmap, CMS8H1215 belongs to mainstream product line with no phase-out plans; b) We sign Long Term Agreement (LTA) with manufacturer to ensure 5+ years supply for strategic customers; c) Establish safety stock mechanism with 2-year inventory prepared before EOL; d) Provide Pin-to-Pin compatible alternative model solutions. Automotive customers can apply for PPAP support including failure mode analysis and process capability studies. Recommend customers review supply status with us every six months and adjust inventory strategy accordingly. CMS8H1215 currently has no EOL risk and can be confidently adopted for long-term projects.

For long-term projects (>5 years), recommend signing LTA agreement. For automotive projects requiring PPAP support, we can assist with certification.

cms8h1215 lifecycle long-term-supply EOL-management LTA-agreement
What quality certifications has CMS8H1215 passed? What are the reliability indicators, and is it suitable for automotive/industrial applications?

CMS8H1215 quality certifications: 1) System certifications: ISO 9001 Quality Management System, ISO 14001 Environmental Management System; 2) Product certifications: Industrial grade, Industrial grade standard, operating temperature -40°C~85°C/105°C; 3) Reliability indicators: ESD HBM 5kV, CDM 713V, Latch-up 128mA, HTOL 1000 hours zero failure, temperature cycling -65°C~150°C 1000 cycles. Industrial application suitability: Suitable for PLC, inverters, instrumentation and other harsh environments with strong anti-interference capability. Quality control: Manufacturer uses first-tier foundries like TSMC, 100% high-temperature aging test per batch, AOI full inspection before shipment. As an authorized distributor, we provide Certificate of Analysis (COA), reliability test reports, and support customer SQE audits. Quality exception handling: Preliminary analysis report within 48 hours, 8D report within 7 days. CMS8H1215 market failure rate <10ppm, with stable and reliable quality.

First choice for industrial applications. for automotive grade, BAT32A series can be recommended. quality is reliable and can be confidently adopted.

cms8h1215 quality-certification reliability AEC-Q100 PPAP