产品详细信息

Resolution (Bits) 24 Number of input channels 2 Sample rate (Max) (kSPS) 64 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-Ended Multi-channel configuration Simultaneous Sampling Rating Automotive TI functional safety category Functional Safety-Capable Reference mode Int Input range (Max) (V) 3.6 Input range (Min) (V) -1.3 Features PGA, Small Size Operating temperature range (C) -40 to 125 Power consumption (Typ) (mW) 1.95 Analog voltage AVDD (Min) (V) 2.7 SNR (dB) 100 Analog voltage AVDD (Max) (V) 3.6 Digital supply (Min) (V) 1.65 Digital supply (Max) (V) 3.6
Resolution (Bits) 24 Number of input channels 2 Sample rate (Max) (kSPS) 64 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-Ended Multi-channel configuration Simultaneous Sampling Rating Automotive TI functional safety category Functional Safety-Capable Reference mode Int Input range (Max) (V) 3.6 Input range (Min) (V) -1.3 Features PGA, Small Size Operating temperature range (C) -40 to 125 Power consumption (Typ) (mW) 1.95 Analog voltage AVDD (Min) (V) 2.7 SNR (dB) 100 Analog voltage AVDD (Max) (V) 3.6 Digital supply (Min) (V) 1.65 Digital supply (Max) (V) 3.6
TSSOP (PW) 20 29 mm² 6.5 x 4.4
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • 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:
    • 330-kΩ input impedance for gains of 1, 2, and 4
    • ≥1-MΩ input impedance for gains of 8, 16, 32, 64, and 128
  • Programmable channel-to-channel phase delay calibration:
    • Resolution = 244 ns, fCLKIN = 8.192 MHz
  • Fast start-up: 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
  • Analog and digital supplies: 2.7 V to 3.6 V
  • Low-power consumption: 2.3 mW at 3-V AVDD and DVDD
  • Package: 20-pin TSSOP
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • 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:
    • 330-kΩ input impedance for gains of 1, 2, and 4
    • ≥1-MΩ input impedance for gains of 8, 16, 32, 64, and 128
  • Programmable channel-to-channel phase delay calibration:
    • Resolution = 244 ns, fCLKIN = 8.192 MHz
  • Fast start-up: 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
  • Analog and digital supplies: 2.7 V to 3.6 V
  • Low-power consumption: 2.3 mW at 3-V AVDD and DVDD
  • Package: 20-pin TSSOP

The ADS131M02-Q1 is a two-channel, simultaneously sampling, 24-bit, delta-sigma (ΔΣ), analog-to-digital converter (ADC) that offers wide dynamic range and low power, making the device designed for automotive battery management systems (BMS). The ADC inputs can be directly interfaced to shunt resistors for bidirectional battery-current measurements, to resistor-divider networks for high-voltage measurements, or to temperature sensors (such as thermistors or analog output temperature sensors).

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 and is specified over the automotive temperature range of –40°C to +125°C.

The ADS131M02-Q1 is a two-channel, simultaneously sampling, 24-bit, delta-sigma (ΔΣ), analog-to-digital converter (ADC) that offers wide dynamic range and low power, making the device designed for automotive battery management systems (BMS). The ADC inputs can be directly interfaced to shunt resistors for bidirectional battery-current measurements, to resistor-divider networks for high-voltage measurements, or to temperature sensors (such as thermistors or analog output temperature sensors).

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 and is specified over the automotive temperature range of –40°C to +125°C.

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类型 项目标题 下载最新的英语版本 日期
* 数据表 ADS131M02-Q1 汽车类、2 通道、64 kSPS、同步采样、24 位、Δ-Σ ADC 数据表 PDF | HTML 下载英文版本 PDF | HTML 28 Jul 2021
功能安全信息 ADS131M02-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 14 Jun 2022
更多文献资料 Addressing BMS Battery Pack Current and Voltage Measurement Requirements 05 May 2022
应用手册 所选封装材料的热学和电学性质 16 Oct 2008
应用手册 模数规格和性能特性术语表 (Rev. A) 下载最新的英文版本 (Rev.B) 16 Oct 2008
应用手册 高速数据转换 下载英文版本 16 Oct 2008

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ADS131M04EVM 套件包括 ADS131M04EVM 板和支持随附计算机软件的精密主机接口 (PHI) 控制器板。

用户指南: PDF
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ADC-INPUT-CALC 是一种在线工具,可为设计模数转换器 (ADC) 的输入缓冲器提供支持。它提供 24 种不同的基于运算放大器的缓冲器电路,这些电路可用于驱动 ADC 输入。可用拓扑涵盖差分单端和变压器耦合输入设计。支持交流耦合和直流耦合设计以及单电源和双电源拓扑。提供两种模式:初学者模式和专家模式。在初学者模式中,设计人员先回答一系列问题,然后会看到解决方案原理图,在某些情况下,还会看到解决方案的可选版本。在专家模式下,设计人员会看到用方框图形式显示的所有 24 (...)
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模拟工程师计算器旨在加快模拟电路设计工程师经常使用的许多重复性计算。该基于 PC 的工具提供图形界面,其中显示各种常见计算的列表(从使用反馈电阻器设置运算放大器增益到为稳定模数转换器 (ADC) 驱动器缓冲器电路选择合适的电路设计元件)。除了可用作单独的工具之外,该计算器还能够很好地与模拟工程师口袋参考书中所述的概念配合使用。
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借助 PSpice for TI 的设计和仿真环境及其内置的模型库,您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案,然后再进行布局和制造,可缩短产品上市时间并降低开发成本。

在 PSpice for TI 设计和仿真工具中,您可以搜索 TI (...)
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TINA-TI 提供了 SPICE 所有的传统直流、瞬态和频域分析以及更多。TINA 具有广泛的后处理功能,允许您按照希望的方式设置结果的格式。虚拟仪器允许您选择输入波形、探针电路节点电压和波形。TINA 的原理图捕获非常直观 - 真正的“快速入门”。

TINA-TI 安装需要大约 500MB。直接安装,如果想卸载也很容易。我们相信您肯定会爱不释手。

TINA 是德州仪器 (TI) 专有的 DesignSoft 产品。该免费版本具有完整的功能,但不支持完整版 TINA 所提供的某些其他功能。

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