Data Acquisition ADCs/DACs – Specialized Integrated Circuit
Specialized ADCs and DACs go beyond standard voltage-to-digital conversion. While a general-purpose ADC simply measures voltage, a Specialized IC is designed for specific physical quantities (like capacitance or impedance), industry standards (like energy metering), or highly integrated signal chains.
These chips integrate the Analog Front-End (AFE), conversion core, and specialized algorithms into a single package. This reduces the processing load on the main MCU and simplifies complex analog designs.
IC-Mart Your Trusted Source for Data Acquisition ADCs/DACs – Specialized Chips
(from leading manufacturers)
Global Manufacturers and Key Models
The following table summarizes the leading international manufacturers and their flagship specialized series:
| Category | Manufacturer | Typical Models | Key Signal Target |
| Energy Metering | Analog Devices (ADI) | ADE7953, ADE9000 | AC/DC Power, RMS, Energy |
| Motor Control | Analog Devices (ADI) | AD2S1210, AD2S1205 | Resolver Sine/Cosine angles |
| Inductive Sensing | Texas Instruments (TI) | LDC1614, LDC1101 | Metal displacement, Inductance |
| Capacitive Sensing | Texas Instruments (TI) | FDC1004, FDC2214 | Liquid level, Proximity |
| Precision Weighing | Cirrus Logic | CS5530, CS5532 | Bridge sensors (Load Cells) |
| Smart Metering | Microchip | ATM90E32AS, ATM90E26 | Multi-phase energy parameters |
Chinese Manufacturers and Pin-to-Pin Alternatives
For supply chain diversification or cost optimization, several Chinese manufacturers offer high-performance specialized ICs.
| Manufacturer | Typical Models | International Competitor | Application Area |
| Chipsea (芯海) | CS1237 / CS1238 | TI ADS123x Series | Precision Weighing / Pressure |
| Hi-Trend (钜泉) | HT7017 / ATT7022 | ADI ADE77xx Series | Smart Grid / Energy Meters |
| 3PEAK (思瑞浦) | TPC5118 | TI ADS8688 | Industrial DAQ Systems |
| ZJW (治精微) | ZJW1210 | ADI AD2S1210 | EV Motor Control (RDC) |
| SGMICRO (圣邦微) | SGM58031 | TI ADS1115 | Precision Voltage Sensing |
Data Acquisition ADCs/DACs – Specialized Core Classifications and Application Logic
The logic behind these classifications is based on the Input Type, Integration Depth, and Target Industry.
1. Physical Parameter Converters
These chips measure non-voltage signals directly.
- Capacitance-to-Digital (CDC): Detects minute pF-level changes. Used for liquid level sensing and proximity detection.
- Inductance-to-Digital (LDC): Measures metal proximity, displacement, or position.
- Impedance Converters: Measures complex impedance, common in electrochemical analysis.
2. Industry-Specific Front-Ends
These are tailored for complex signal chains or regulatory standards.
- Energy Metering ICs: These calculate power, active/reactive energy, and RMS values internally. Essential for smart meters and charging piles.
- Resolver-to-Digital (RDC): Converts sine/cosine signals from resolvers into precise motor angles and speeds. Used in EVs and robotics.
3. High-Integration Systems (DAQ)
- Data Acquisition uModules: These integrate amplifiers, filters, and ADCs into a single “System-in-Package” (SiP) to eliminate analog tuning headaches.
Why Engineers Choose Specialized ICs
- Simplified Design: No need to build complex discrete analog circuits.
- Space Efficiency: Replaces dozens of components with a single chip.
- High Reliability: Internal factory calibration ensures precision and low temperature drift.
- CPU Offloading: On-chip hardware handles math-heavy tasks like FFT or power calculation.