ADS131M06
- 6 simultaneously sampling differential inputs
- Programmable data rate up to 32 kSPS
- Programmable gain up to 128
- Noise performance:
- 102-dB dynamic range at gain = 1, 4 kSPS
- 80-dB dynamic range at gain = 64, 4 kSPS
- Total harmonic distortion: –100 dB
- High-impedance inputs for direct sensor connection:
- Input impedance 330-kΩ for gains of 1, 2, and 4
- Input impedance ≥ 1-MΩ for gains of 8, 16, 32, 64, and 128
- Programmable channel-to-channel phase delay calibration:
- 244-ns resolution, 8.192-MHz fCLKIN
- Current-detect mode allows for extremely low power tamper detection
- Fast startup: first data within 0.5 ms of supply ramp
- Integrated negative charge pump allows input signals below ground
- Crosstalk between channels: –120 dB
- Low-drift internal voltage reference
- Cyclic redundancy check (CRC) on communications and register map
- 2.7-V to 3.6-V analog and digital supplies
- Low power consumption: 4.9 mW at 3-V AVDD and DVDD
- Packages: 32-pin TQFP or 32-pin WQFN
- Operating temperature range: –40°C to +125°C
The ADS131M06 is a six-channel, simultaneously-sampling, 24-bit, delta-sigma (ΔΣ), analog-to-digital converter (ADC) that offers wide dynamic range, low power, and energy-measurement-specific features, making the device an excellent fit for energy metering, power metrology, and circuit breaker applications. The ADC inputs can be directly interfaced to a resistor-divider network or a power transformer to measure voltage or to a current transformer or a Rogowski coil to measure current.
The individual ADC channels can be independently configured depending on the sensor input. A low-noise, programmable gain amplifier (PGA) provides gains ranging from 1 to 128 to amplify low-level signals. Additionally, this device integrates channel-to-channel phase calibration and offset and gain calibration registers to help remove signal-chain errors.
A low-drift, 1.2-V reference is integrated into the device reducing printed circuit board (PCB) area. Optional cyclic redundancy checks (CRCs) on the data input, data output, and register map maintain communication integrity.
The complete analog front-end (AFE) is offered in a 32-pin TQFP package or a leadless 32-pin WQFN package and is specified over the industrial temperature range of –40°C to +125°C.
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技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | ADS131M06 6-Channel, Simultaneously-Sampling, 24-Bit, Delta-Sigma ADC datasheet (Rev. A) | PDF | HTML | 2021年 2月 17日 |
Application note | A Basic Guide to Bridge Measurements (Rev. A) | PDF | HTML | 2024年 3月 13日 | |
Application note | Digital Filter Types in Delta-Sigma ADCs (Rev. A) | PDF | HTML | 2023年 3月 29日 | |
Application note | Two-Phase Rogowski Coil Based Electricity Meter Analog Front-End Circuit (Rev. A) | 2021年 9月 10日 | ||
Application note | Communication Methods for Data Integrity Using Delta-Sigma Data Converters (Rev. A) | PDF | HTML | 2021年 8月 23日 | |
Circuit design | Circuit for protecting ADS131M0x ADC from electrical overstress | PDF | HTML | 2021年 3月 31日 | |
E-book | Fundamentals of Precision ADC Noise Analysis | 2020年 6月 19日 |
設計與開發
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封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
TQFP (PBS) | 32 | Ultra Librarian |
WQFN (RSN) | 32 | Ultra Librarian |
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