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Product Overview
The ADS7871IDB is a complete, high-performance data acquisition system from Texas Instruments. It integrates a 12-bit analog-to-digital converter (ADC), an 8-channel multiplexer, a programmable gain amplifier (PGA), and a precision voltage reference in a compact 28-SSOP package. Designed for low-power, high-accuracy applications, it offers a maximum sampling rate of 125 kSPS and operates from a single 2.7V to 5.5V supply. The device communicates via a serial SPI interface, making it easy to interface with microcontrollers and DSPs.
Detailed Technical Specifications
| Parameter |
Value |
| Resolution |
12 bits |
| Number of Channels |
8 (single-ended) / 4 (differential) |
| Sampling Rate |
125 kSPS (max) |
| Input Range |
0 to VREF (with PGA) |
| PGA Gains |
1, 2, 4, 5, 8, 10, 16, 20 |
| INL |
±1 LSB (max) |
| SNR |
70 dB (typical) |
| Supply Voltage |
2.7V to 5.5V |
| Power Consumption |
2.5 mW (at 3V, 125 kSPS) |
| Interface |
SPI |
| Operating Temperature |
-40°C to +85°C |
| Package |
28-SSOP |
Key Features
- Integrated 12-bit ADC with 8-channel multiplexer and PGA
- Low power: 2.5 mW at 125 kSPS
- Wide supply range: 2.7V to 5.5V
- Programmable gains: 1 to 20
- Internal voltage reference (2.5V) with external reference option
- SPI-compatible serial interface
- Auto-scan mode for continuous conversion
- Small footprint: 28-SSOP package
Target Applications
- Industrial process control (e.g., PLC analog input modules)
- Data acquisition systems (e.g., portable data loggers)
- Medical instrumentation (e.g., patient monitoring devices)
- Automotive sensor interfaces (e.g., battery management systems)
- 5G base station power monitoring
- Test and measurement equipment (e.g., digital multimeters)
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
ADS7871IDB. Our core advantages include:
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24/7 Global Customer Support: Professional team providing instant
quotes and technical support worldwide.
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In-stock Inventory, Same-day Shipping: We maintain localized stock;
orders confirmed before 4 PM are shipped the same day.
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HK-SZ Synergy, Flexible Settlement: Direct global shipping from
Shenzhen with support for HK bank transfers and multi-currency.
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Escrow Secured Transactions: We support Escrow.com for secure
transactions, ensuring peace of mind for batch orders.
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BOM Kitting & Sampling Services: Specialized sourcing for
testing samples and urgent shortage components.
Quality Assurance & Compliance
Jasin Chip guarantees that all delivered products are 100% original factory stock
with full quality assurance and traceability.
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100% Original & Authentic: All components are guaranteed to
be authentic with strict quality control.
-
RoHS Compliant: All electronic components comply with international
environmental and safety standards.
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Original Factory Packaging: We maintain original factory packaging
and seals to ensure ESD protection and physical integrity.
產品概述
ADS7871IDB 是德州儀器推出的一款完整的高性能數據採集系統。它集成了12位模數轉換器(ADC)、8通道多路復用器、可編程增益放大器(PGA)和精密電壓基準,採用緊湊的28-SSOP封裝。該器件專為低功耗、高精度應用而設計,最高採樣率為125 kSPS,可在2.7V至5.5V的單電源下工作。通過SPI串行接口通信,易於與微控制器和DSP連接。
詳細技術參數
| 參數 |
數值 |
| 分辨率 |
12位 |
| 通道數 |
8(單端)/ 4(差分) |
| 採樣率 |
125 kSPS(最大) |
| 輸入範圍 |
0 至 VREF(含PGA) |
| PGA增益 |
1, 2, 4, 5, 8, 10, 16, 20 |
| INL |
±1 LSB(最大) |
| SNR |
70 dB(典型) |
| 電源電壓 |
2.7V 至 5.5V |
| 功耗 |
2.5 mW(3V, 125 kSPS) |
| 接口 |
SPI |
| 工作溫度 |
-40°C 至 +85°C |
| 封裝 |
28-SSOP |
核心特性
- 集成12位ADC、8通道多路復用器和PGA
- 低功耗:125 kSPS時僅2.5 mW
- 寬電源範圍:2.7V至5.5V
- 可編程增益:1至20
- 內部電壓基準(2.5V),可選外部基準
- SPI兼容串行接口
- 自動掃描模式,支持連續轉換
- 小型封裝:28-SSOP
典型應用場景
- 工業過程控制(例如PLC模擬輸入模塊)
- 數據採集系統(例如便攜式數據記錄儀)
- 醫療儀器(例如病人監護設備)
- 汽車傳感器接口(例如電池管理系統)
- 5G基站電源監控
- 測試與測量設備(例如數字萬用表)
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 ADS7871IDB 提供全面的供應鏈與批發解決方案。
我們的核心優勢包括:
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全天候環球客戶支援:專業團隊為您提供即時報價及技術支援,無需漫長等待。
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現貨庫存,即日發貨:確保現貨充足。下午 4 點前確認訂單,即可安排當天寄出。
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Escrow 擔保交易:支援 Escrow.com 平台交易,保障買賣雙方權益,小批量訂單亦可安心在線下單。
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BOM 配單與樣板服務:提供樣板測試及認證支援。專注一站式 BOM 配套及緊急缺料採購服務。
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Jasin Chip 承諾所有出貨產品均為原廠正貨,具備完善的品質保證及產品可追溯性。
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原廠封裝保護:嚴格保留原廠原始包裝及封條,確保物流過程中的靜電防護 (ESD) 與物理安全。
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