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Product Overview
The ADS821U is a high-speed, 12-bit analog-to-digital converter (ADC) from Texas Instruments. It operates at a maximum sampling rate of 20 MSPS and is housed in a 28-pin SOIC package. The device features a single-ended input, internal reference, and a parallel CMOS output interface. It is designed for applications requiring high dynamic performance and low power consumption.
Detailed Technical Specifications
| Parameter |
Value |
| Resolution |
12 Bits |
| Sampling Rate (Max) |
20 MSPS |
| Input Type |
Single-Ended |
| Input Voltage Range |
2 Vpp |
| Supply Voltage |
5 V |
| Power Dissipation |
175 mW |
| SNR (Typ) |
68 dB |
| SFDR (Typ) |
80 dBc |
| DNL (Max) |
±0.5 LSB |
| INL (Max) |
±1 LSB |
| Operating Temperature |
-40°C to +85°C |
| Package |
28-SOIC |
Key Features
- 12-bit resolution with 20 MSPS sampling rate
- Low power: 175 mW at 5 V
- Excellent dynamic performance: 68 dB SNR, 80 dBc SFDR
- Internal reference with external reference option
- Single-ended input with 2 Vpp range
- Parallel CMOS output interface
- Power-down mode for power saving
- 28-pin SOIC package for compact design
Target Applications
- Wireless communication base stations (e.g., 5G NR, LTE)
- Medical imaging systems (e.g., ultrasound, MRI)
- Test and measurement equipment (e.g., oscilloscopes, spectrum analyzers)
- Radar and electronic warfare systems
- Industrial video and imaging (e.g., machine vision)
- Automotive driver assistance systems (e.g., camera-based ADAS)
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
ADS821U. 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.
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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
ADS821U 是德州儀器(TI)推出的一款高速12位模數轉換器(ADC),最高採樣率為20 MSPS,採用28引腳SOIC封裝。該器件具有單端輸入、內部參考電壓和並行CMOS輸出接口,專為需要高動態性能和低功耗的應用而設計。
詳細技術參數
| 參數 |
數值 |
| 分辨率 |
12 位 |
| 最大採樣率 |
20 MSPS |
| 輸入類型 |
單端 |
| 輸入電壓範圍 |
2 Vpp |
| 供電電壓 |
5 V |
| 功耗 |
175 mW |
| 典型信噪比 |
68 dB |
| 典型無雜散動態範圍 |
80 dBc |
| 最大微分非線性 |
±0.5 LSB |
| 最大積分非線性 |
±1 LSB |
| 工作溫度範圍 |
-40°C 至 +85°C |
| 封裝 |
28-SOIC |
核心特性
- 12位分辨率,20 MSPS採樣率
- 低功耗:5 V供電下僅175 mW
- 優異的動態性能:68 dB SNR,80 dBc SFDR
- 內部參考電壓,可選外部參考
- 單端輸入,2 Vpp範圍
- 並行CMOS輸出接口
- 省電模式
- 緊湊的28-SOIC封裝
典型應用場景
- 無線通信基站(例如5G NR、LTE)
- 醫療影像系統(例如超聲、MRI)
- 測試與測量設備(例如示波器、頻譜分析儀)
- 雷達與電子戰系統
- 工業視頻與成像(例如機器視覺)
- 汽車駕駛輔助系統(例如基於攝像頭的ADAS)
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 ADS821U 提供全面的供應鏈與批發解決方案。
我們的核心優勢包括:
-
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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深港聯動,結算靈活:深圳直發全球,物流高效可靠;支援香港銀行戶口轉賬及多幣種結算。
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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。
品質保證與合規
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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100% 原廠正貨:承諾所有供應零件均為原裝現貨,品質嚴格把關,來源清晰可追溯。
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符合 RoHS 認證:所有電子元器件均符合國際環保標準及相關安全認證。
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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。
以上產品均為原廠正貨,提供 BOM 配單及現貨庫存支援,歡迎查詢。
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