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ADS131M02-Q1

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汽车类双通道、24 位、64kSPS 同步采样 Δ-Σ ADC

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ADS131M02-Q1

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产品详情

Resolution (Bits) 24 Sample rate (max) (ksps) 64 Number of input channels 2 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Simultaneous Sampling Rating Automotive TI functional safety category Functional Safety-Capable Reference mode Internal Input voltage range (max) (V) 3.6 Input voltage range (min) (V) -1.3 Features PGA, Small Size Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 1.95 Analog supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 3.6 SNR (dB) 100 Digital supply (min) (V) 1.65 Digital supply (max) (V) 3.6
Resolution (Bits) 24 Sample rate (max) (ksps) 64 Number of input channels 2 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Simultaneous Sampling Rating Automotive TI functional safety category Functional Safety-Capable Reference mode Internal Input voltage range (max) (V) 3.6 Input voltage range (min) (V) -1.3 Features PGA, Small Size Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 1.95 Analog supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 3.6 SNR (dB) 100 Digital supply (min) (V) 1.65 Digital supply (max) (V) 3.6
TSSOP (PW) 20 41.6 mm² 6.5 x 6.4
  • 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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顶层文档 类型 标题 格式选项 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 英语版 PDF | HTML 2021年 7月 28日
应用手册 A Simple, Java-Based CRC Calculator PDF | HTML 2026年 3月 4日
功能安全信息 ADS131M02-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 2022年 6月 14日
更多文献资料 Addressing BMS Battery Pack Current and Voltage Measurement Requirements 2022年 5月 5日
应用手册 所选封装材料的热学和电学性质 2008年 10月 16日
应用手册 模数规格和性能特性术语表 (Rev. A) 最新英语版本 (Rev.B) 2008年 10月 16日
应用手册 高速数据转换 英语版 2008年 10月 16日

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评估板

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

用户指南: PDF
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仿真模型

ADS131M02/03/04 IBIS model (Rev. A)

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用户指南: PDF
英语版 (Rev.A): PDF
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  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
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  • 持续可靠性监测
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