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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 x 6.4
  • 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 日期
* Data sheet ADS131B02-Q1 Automotive, 2-Channel, 32-kSPS, Simultaneous-Sampling,24-Bit, Delta-Sigma ADC datasheet PDF | HTML 2021年 9月 28日
Application note Digital Filter Types in Delta-Sigma ADCs (Rev. A) PDF | HTML 2023年 3月 29日
Functional safety information ADS131B02-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 2021年 9月 28日

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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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 Model
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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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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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模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI 是有助於評估類比電路功能的設計和模擬環境。這款全功能設計和模擬套件使用 Cadence® 的類比分析引擎。PSpice for TI 包括業界最大的模型庫之一，涵蓋我們的類比和電源產品組合，以及特定類比行為模型，且使用無需支付費用。

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。 

在 PSpice for TI 設計與模擬工具中，您可以搜尋 TI (...)
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TINA-TI — 基於 SPICE 的類比模擬程式

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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TSSOP (PW) 20 Ultra Librarian
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