ADS131M02IRUKR
Encoders, Decoders, Multiplexers & Demultiplexers 24-bit, 32-kSPS, 2-channel, simultaneous-sampling, delta-sigma ADC 20-WQFN -40 to 125
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Part Number : ADS131M02IRUKR
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Package/Case : WQFN-20
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Brands : TI
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Components Categories : Analog to Digital Converters (ADC)
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Datesheet : ADS131M02IRUKR DataSheet (PDF)
Overview of ADS131M02IRUKR
The ADS131M02 is a two-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, shunt, 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 20-pin TSSOP package or a leadless 20-pin WQFN package and is specified over the industrial temperature range of –40°C to +125°C.
Key Features
- 2 simultaneously sampling differential inputs
- Programmable data rate up to 64 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 of 330 kΩ for gains of 1, 2, and 4
- Input impedance of ≥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
- 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: 2.3 mW at 3-V AVDD and DVDD
- Packages: 20-pin TSSOP or 20-pin WQFN
- Operating temperature range: –40°C to +125°C
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
Product Status | Active | Number of Bits | 24 |
Sampling Rate (Per Second) | 32k | Input Type | Differential |
Data Interface | Serial, SPI | Configuration | PGA-ADC |
Ratio - S/H:ADC | 0:2 | Architecture | Sigma-Delta |
Reference Type | Internal | Voltage - Supply, Analog | 2.4V ~ 3.6V |
Voltage - Supply, Digital | 1.65V ~ 3.6V | Features | PGA, Simultaneous Sampling |
Operating Temperature | -40°C ~ 125°C | Package / Case | WQFN-20 |
Supplier Device Package | 20-WQFN (3x3) | Mounting Type | Surface Mount |
Manufacturer | Texas Instruments | Product Category | Encoders, Decoders, Multiplexers & Demultiplexers |
RoHS | Details | Brand | Texas Instruments |
Moisture Sensitive | Yes | Product Type | Encoders, Decoders, Multiplexers & Demultiplexers |
Series | ADS131M02 | Factory Pack Quantity | 3000 |
Subcategory | Logic ICs |
Warranty & Returns
Warranty, Returns, and Additional Information
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QA & Return Policy
Parts Quality Guarantee: 365 days
Returns for refund: within 90 days
Returns for Exchange: within 90 days
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