ADS131A02
- 2 or 4 simultaneous-sampling differential inputs
- Data rates up to 128 kSPS
- High performance:
- Single-channel accuracy: better than 0.1% at 10,000:1 dynamic range
- Effective resolution: 20.6 bits at 8 kSPS
- THD: –100 dB at 50 Hz and 60 Hz
- Integrated negative charge pump allows absolute input voltages below ground
- Flexible analog power-supply operation:
- Using negative charge pump: 3.0 V to 3.45 V
- Unipolar supply: 3.3 V to 5.5 V
- Bipolar supply: ±2.5 V
- Digital supply: 1.65 V to 3.6 V
- Low-drift internal voltage reference: 6 ppm/°C
- ADC self checks
- Cyclic redundancy check (CRC) and hamming code error correction on communications
- Multiple SPI data interface modes:
- Asynchronous interrupt
- Synchronous master and slave
- Package: 32-pin TQFP
- Operating temperature range:
–40°C to +125°C
The ADS131A02 and ADS131A04 devices are two- and four-channel, simultaneous-sampling, 24-bit, delta-sigma (ΔΣ), analog-to-digital converters (ADCs). The wide dynamic range, with scalable data rates up to 128 kSPS, and internal fault monitors make the ADS131A02 or ADS131A04 a good choice when designing for energy monitoring, grid protection, and control applications. The ADC inputs can be independently and directly interfaced to a resistor-divider network, a current transformer, or a Rogowski coil to measure voltage or current. Flexible power-supply options, including an internal negative charge pump, are available to maximize the effective resolution for high dynamic range applications.
Asynchronous and synchronous master and slave interface options are available, providing ADC configuration flexibility when chaining multiple devices in a single system. Several interface checks, ADC startup checks, and data integrity checks can be enabled on the interface to report errors in the ADC and during data transfer.
The complete analog front-end (AFE) solutions are packaged in a 32-pin TQFP package and are specified over the industrial temperature range of –40°C to +125°C.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | ADS131A0x 2- or 4-Channel, 24-Bit, 128-kSPS, Simultaneous-Sampling, Delta-Sigma ADC datasheet (Rev. E) | PDF | HTML | 2020年 6月 17日 |
Application note | A Basic Guide to Bridge Measurements (Rev. A) | PDF | HTML | 2024年 3月 13日 | |
Application note | Digital Filter Types in Delta-Sigma ADCs (Rev. A) | PDF | HTML | 2023年 3月 29日 | |
Application note | Communication Methods for Data Integrity Using Delta-Sigma Data Converters (Rev. A) | PDF | HTML | 2021年 8月 23日 | |
E-book | Fundamentals of Precision ADC Noise Analysis | 2020年 6月 19日 |
設計與開發
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ADS131A04EVM — ADS131A04 評估模組
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 (...)
支援產品和硬體
產品
精密度運算放大器 (Vos<1mV)
一般用途運算放大器
音訊運算放大器
轉阻放大器
高速運算放大器 (GBW ≥ 50 MHz)
功率運算放大器
視訊放大器
線路驅動器
轉導放大器與雷射驅動器
全差分放大器
精確 ADC
生物感測 AFE
高速 ADC (≥10 MSPS)
觸控式螢幕控制器
差分放大器
儀器放大器
音訊線路接收器
類比電流感測放大器
數位電源監測器
配備整合式分流電阻器的類比電流感測放大器
具整合式分流電阻器的數位電源監測器
晶粒與晶圓服務
RF 接收器
RF 發射器
ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.
支援產品和硬體
產品
系列電壓參考
精確 ADC
生物感測 AFE
整合式精密 ADC 與 DAC
高速 ADC (≥10 MSPS)
精密 DAC (≤10 MSPS)
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
TINA-TI — 基於 SPICE 的類比模擬程式
TIDA-00835 — 採用 24 位元 Delta-Sigma ADC 的高準確度 ±0.5% 電流和隔離式電壓量測參考設計
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
TQFP (PBS) | 32 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。