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ADS131B02-Q1

現行

車用 24 位元、32-kSPS、雙通道、同時取樣、ΔΣ ADC

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產品規格表

ADS131B02-Q1

現行
產品規格表 立即訂購

產品詳細資料

Resolution (Bits) 24 Sample rate (max) (ksps) 32 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) 2.4 Input voltage range (min) (V) -0.3 Features PGA, Small Size Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 10.6 Analog supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 3.6 Digital supply (min) (V) 2.7 Digital supply (max) (V) 3.6
Resolution (Bits) 24 Sample rate (max) (ksps) 32 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) 2.4 Input voltage range (min) (V) -0.3 Features PGA, Small Size Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 10.6 Analog supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 3.6 Digital supply (min) (V) 2.7 Digital supply (max) (V) 3.6
TSSOP (PW) 20 41.6 mm² (6.5 mm × 6.4 mm)
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • 2 simultaneous-sampling, differential input ADCs
  • Programmable data rate: Up to 32 kSPS
  • Programmable gain: Up to 128
  • Noise performance:
    • 0.82 µVRMS at 1 kSPS, gain = 8
  • Global-chop mode to remove offset drift over temperature and time
  • High-impedance analog inputs for direct sensor connection
  • Integrated negative charge pump allows input signal measurements below ground
  • Crosstalk between channels: –120 dB
  • Low-drift internal reference: 1.2 V
  • Precision internal oscillator
  • CRC on communications and register map
  • Analog and digital supplies: 2.7 V to 3.6 V
  • Low power consumption: 3 mW at 3.3-V AVDD and DVDD
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • 2 simultaneous-sampling, differential input ADCs
  • Programmable data rate: Up to 32 kSPS
  • Programmable gain: Up to 128
  • Noise performance:
    • 0.82 µVRMS at 1 kSPS, gain = 8
  • Global-chop mode to remove offset drift over temperature and time
  • High-impedance analog inputs for direct sensor connection
  • Integrated negative charge pump allows input signal measurements below ground
  • Crosstalk between channels: –120 dB
  • Low-drift internal reference: 1.2 V
  • Precision internal oscillator
  • CRC on communications and register map
  • Analog and digital supplies: 2.7 V to 3.6 V
  • Low power consumption: 3 mW at 3.3-V AVDD and DVDD

The ADS131B02-Q1 is a two-channel, simultaneous-sampling, 24-bit, delta-sigma (ΔΣ) analog-to-digital converter (ADC) that offers wide dynamic range, low power, and buffered analog inputs, making the device an excellent fit 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. The device features a global-chop mode to remove offset drift over temperature and time. Additionally, this device integrates offset and gain calibration registers to help remove signal-chain errors.

A low-drift, 1.2-V reference and precision oscillator are 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 ADS131B02-Q1 is a two-channel, simultaneous-sampling, 24-bit, delta-sigma (ΔΣ) analog-to-digital converter (ADC) that offers wide dynamic range, low power, and buffered analog inputs, making the device an excellent fit 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. The device features a global-chop mode to remove offset drift over temperature and time. Additionally, this device integrates offset and gain calibration registers to help remove signal-chain errors.

A low-drift, 1.2-V reference and precision oscillator are 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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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 ADS131B02-Q1 Automotive, 2-Channel, 32-kSPS, Simultaneous-Sampling,24-Bit, Delta-Sigma ADC datasheet PDF | HTML 2021/9/28
應用說明 Digital Filter Types in Delta-Sigma ADCs (Rev. A) PDF | HTML 2023/3/29
功能安全資訊 ADS131B02-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 2021/9/28

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

ADS131B04-Q1EVM — 適用於 24 位元、32-kSPS、4 通道、同時取樣、ΔΣ ADC 的 ADS131B04 評估模組

ADS131B04-Q1 評估模組 (EVM) 是用於評估 ADS131B04-Q1 產品的平台，這是一款低功率、四通道、同時取樣、ΔΣ 類比轉數位轉換器 (ADC)。

ADS131B04-Q1EVM 套件包含 ADS131B04-Q1 電路板和可啟用隨附軟體的精密主機介面 (PHI) 控制器電路板。

使用指南: PDF | HTML
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支援軟體

ADS131B04Q1-C-EXAMPLE-CODE — ADS131B04-Q1 example C code

Expedite your embedded design using this example C code for the ADS131B04-Q1 product family
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模擬型號

ADS131B0x-Q1 IBIS Model (Rev. A)

SBAM447A.IBS (301 KB) - IBIS 模型
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計算工具

ADC-DESIGN-CALC — Online design calculator tool for TI Precision ADCs

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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計算工具

ANALOG-ENGINEER-CALC — PC software analog engineer's calculator

類比工程師的計算機旨在加速類比電路設計工程師定期使用的許多重複計算。此基於 PC 的工具提供圖形介面，列出各種常見計算，從使用回饋電阻器設定運算放大器增益到選擇適當的電路設計元件以穩定類比數位轉換器 (ADC) 驅動緩衝電路。

除了作為獨立工具使用外，此計算機還與類比工程師口袋參考中描述的概念相得益彰。

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TSSOP (PW) 20 Ultra Librarian
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