產品詳細資料

Resolution (Bits) 24 Sample rate (max) (ksps) 64 Number of input channels 3 Interface type SPI Architecture Delta-Sigma Input type Differential, Pseudo-Differential, Single-ended Multichannel configuration Simultaneous Sampling Rating Catalog Reference mode Internal Input voltage range (max) (V) 2.4 Input voltage range (min) (V) -0.3 Features Comparator, GPIO, Oscillator, PGA, Temp Sensor Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 29 Analog supply voltage (min) (V) 2.9 Analog supply voltage (max) (V) 16 Digital supply (min) (V) 2.9 Digital supply (max) (V) 16
Resolution (Bits) 24 Sample rate (max) (ksps) 64 Number of input channels 3 Interface type SPI Architecture Delta-Sigma Input type Differential, Pseudo-Differential, Single-ended Multichannel configuration Simultaneous Sampling Rating Catalog Reference mode Internal Input voltage range (max) (V) 2.4 Input voltage range (min) (V) -0.3 Features Comparator, GPIO, Oscillator, PGA, Temp Sensor Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 29 Analog supply voltage (min) (V) 2.9 Analog supply voltage (max) (V) 16 Digital supply (min) (V) 2.9 Digital supply (max) (V) 16
HTQFP (PHP) 48 81 mm² 9 x 9
  • Two simultaneous-sampling, 24-bit ADCs (ADC1A, ADC1B) for current-shunt measurements
    • Programmable full-scale range:
      • ±39mV to ±312.5mV
      • Supports a wide range of shunt resistor values and current-measurement ranges
    • Achieve high-accuracy current-shunt measurements with:
      • Offset error: ±1.5µV (max)
      • Gain drift: 20ppm/°C (max)
    • Programmable data rate: 500SPS to 64kSPS
    • Digital overcurrent comparator per ADC with programmable thresholds for fast overcurrent detection
  • One multiplexed, 16-bit ADC (ADC2A) for voltage and temperature measurements:
    • 8 analog inputs
    • Programmable full-scale range:±312.5mV to ±1.25V
    • Channel sequencer
  • Monitoring and diagnostic features to mitigate and detect random hardware faults
  • Supply-voltage range: 2.9V to 16V
  • SPI-compatible interface
  • 9 GPIOs with PWM capability
  • Two simultaneous-sampling, 24-bit ADCs (ADC1A, ADC1B) for current-shunt measurements
    • Programmable full-scale range:
      • ±39mV to ±312.5mV
      • Supports a wide range of shunt resistor values and current-measurement ranges
    • Achieve high-accuracy current-shunt measurements with:
      • Offset error: ±1.5µV (max)
      • Gain drift: 20ppm/°C (max)
    • Programmable data rate: 500SPS to 64kSPS
    • Digital overcurrent comparator per ADC with programmable thresholds for fast overcurrent detection
  • One multiplexed, 16-bit ADC (ADC2A) for voltage and temperature measurements:
    • 8 analog inputs
    • Programmable full-scale range:±312.5mV to ±1.25V
    • Channel sequencer
  • Monitoring and diagnostic features to mitigate and detect random hardware faults
  • Supply-voltage range: 2.9V to 16V
  • SPI-compatible interface
  • 9 GPIOs with PWM capability

The ADS131B23 is a fully integrated, high-voltage, battery-pack monitor for industrial battery management systems (BMS).

The ADS131B23 integrates two simultaneous-sampling, high-precision, 24-bit ADC channels (ADC1A, ADC1B) to redundantly measure battery current with high resolution and accuracy using an external shunt resistor. Two independent digital comparators enable fast overcurrent detection in parallel with the two ADCs.

An additional multiplexed, 16-bit ADC (ADC2A) is available to measure shunt temperature and other voltages in the system, such as battery-pack voltage, using external high-voltage resistor dividers. Shunt temperature is measured using an external temperature sensor, such as a thermistor or an analog output temperature sensor. ADC2A is equipped with a channel sequencer that automatically steps through the configured multiplexer inputs to reduce communication on the SPI.

The device integrates many monitoring and diagnostic features to mitigate and detect random hardware faults to aid in the development of functionally safe BMS.

Internal linear regulators with input ranges up to 16V support powering the device with unregulated DC/DC converters.

The ADS131B23 is offered in a 48-pin HTQFP package and is specified over the automotive temperature range of –40°C to +105°C.

The ADS131B23 is a fully integrated, high-voltage, battery-pack monitor for industrial battery management systems (BMS).

The ADS131B23 integrates two simultaneous-sampling, high-precision, 24-bit ADC channels (ADC1A, ADC1B) to redundantly measure battery current with high resolution and accuracy using an external shunt resistor. Two independent digital comparators enable fast overcurrent detection in parallel with the two ADCs.

An additional multiplexed, 16-bit ADC (ADC2A) is available to measure shunt temperature and other voltages in the system, such as battery-pack voltage, using external high-voltage resistor dividers. Shunt temperature is measured using an external temperature sensor, such as a thermistor or an analog output temperature sensor. ADC2A is equipped with a channel sequencer that automatically steps through the configured multiplexer inputs to reduce communication on the SPI.

The device integrates many monitoring and diagnostic features to mitigate and detect random hardware faults to aid in the development of functionally safe BMS.

Internal linear regulators with input ranges up to 16V support powering the device with unregulated DC/DC converters.

The ADS131B23 is offered in a 48-pin HTQFP package and is specified over the automotive temperature range of –40°C to +105°C.

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* Data sheet ADS131B23 High-Voltage, Battery-Pack Monitor With SPI and 3 ADC Channels for Voltage, Current, and Temperature Sensing datasheet (Rev. B) PDF | HTML 2025年 1月 31日
Circuit design 來自 +5V 供電電源且用於高電壓資料轉換器的精密、±15V 電 源供應電路 PDF | HTML 2025年 12月 9日
Application note Digital Filter Types in Delta-Sigma ADCs (Rev. A) PDF | HTML 2023年 3月 29日

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ADS131B26Q1EVM-PDK — 適用六 ADC 通道高電壓 SPI 電池組監控器的 ADS131B26 性能展示套件

ADS131B26-Q1 評估模組 (EVM) 性能展示套件 (PDK) 是一款結合 ADS131B26Q1EVM 和精確主機介面 (PHI) 控制器板的完整評估與展示平台。PHI 控制器板可讓 ADS131B26Q1EVM 透過 USB 埠連接電腦,並與設計用於評估 ADS131B26-Q1 的軟體介接。

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ADS131B2X-C-EXAMPLE-CODE ADS131B2x example C code

Expedite your ADS131B2x firmware development with this example C code from Texas Instruments
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ADS131B2x IBIS Model

SBAM497.IBS (176 KB) - IBIS Model
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ADC-DESIGN-CALC is an online resource with multiple ADC calculator tools (such as Digital Filter Response, Code-to-Voltage, CMR, CRC, etc.) for TI Precision ADCs.
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ANALOG-ENGINEER-CALC PC software analog engineer's calculator

The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)

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PSpice for TI 設計和模擬環境可讓您使用其內建函式庫來模擬複雜的混合訊號設計。在進行佈局和製造之前,建立完整的終端設備設計和解決方案原型,進而縮短上市時間並降低開發成本。 

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TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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HTQFP (PHP) 48 Ultra Librarian

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