開發模組 (EVM) 的 GUI
ADS1278-HT
- Simultaneously Measure Eight Channels
- Up to 128-kSPS Data Rate
- AC Performance:
62-kHz Bandwidth
111-dB SNR (High-Resolution Mode)
–108-dB THD - DC Accuracy:
0.8-µV/°C Offset Drift
1.3-ppm/°C Gain Drift - Selectable Operating Modes:
High-Speed: 128 kSPS, 106 dB SNR
High-Resolution: 52 kSPS, 111 dB SNR
Low-Power: 52 kSPS, 31 mW/ch
Low-Speed: 10 kSPS, 7 mW/ch - Linear Phase Digital Filter
- SPI or Frame-Sync Serial Interface
- Low Sampling Aperture Error
- Modulator Output Option (digital filter bypass)
- Analog Supply: 5 V
- Digital Core: 1.8 V
- I/O Supply: 1.8 V to 3.3 V
- Currently Available in an HTQFP-64 PowerPAD™ package,
an 84-Pin HFQ Package and a KGD Chiptray Option - Supports Extreme Temperature Applications
- Controlled Baseline
- One Assembly/Test Site
- One Fabrication Site
- Available in Extreme (–55°C/210°C) Temperature Range(1)
- Extended Product Life Cycle
- Extended Product-Change Notification
- Product Traceability
- Texas Instruments High Temperature Products Utilize Highly
Optimized Silicon (Die) Solutions With Dsign and Process
Enhancements to Maximize Performance Over Extended Temperatures
- APPLICATIONS
- Down-Hole Drilling
- High Temperature Environments
- Vibration/Modal Analysis
- Multi-Channel Data Acquisition
- Acoustics/Dynamic Strain Gauges
- Pressure Sensors
(1) Custom temperature ranges available
All other trademarks are the property of their respective owners
Based on the single-channel ADS1271, the ADS1278 (octal) is a 24-bit, delta-sigma (ΔΣ) analog-to-digital converter (ADC) with data rates up to 128 k samples per second (SPS), allowing simultaneous sampling of eight channels.
Traditionally, industrial delta-sigma ADCs offering good drift performance use digital filters with large passband droop. As a result, they have limited signal bandwidth and are mostly suited for dc measurements. High-resolution ADCs in audio applications offer larger usable bandwidths, but the offset and drift specifications are significantly weaker than respective industrial counterparts. The ADS1278 combines these types of converters, allowing high-precision industrial measurement with excellent dc and ac specifications.
The high-order, chopper-stabilized modulator achieves very low drift with low in-band noise. The onboard decimation filter suppresses modulator and signal out-of-band noise. These ADCs provide a usable signal bandwidth up to 90% of the Nyquist rate with less than 0.005 dB of ripple.
Four operating modes allow for optimization of speed, resolution, and power. All operations are controlled directly by pins; there are no registers to program. The device is fully specified over the extended industrial range (–55°C to 210°C) and is available in an HTQFP-64 PowerPAD package (–55°C to 175°C), an 84-pin HFQ package and a KGD chiptray option.
技術文件
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檢視所有 7 | 重要文件 | 類型 | 標題 | 格式選項 | 日期 |
|---|---|---|---|---|
| * | Data sheet | Quad/Octal, Simultaneous Sampling, 24-Bit Analog-to-Digital Converter datasheet (Rev. E) | 2013年 4月 11日 | |
| * | Radiation & reliability report | ADS1278SHFQ Reliability Report | 2012年 5月 7日 | |
| * | Radiation & reliability report | ADS1278SHKP Reliability Report | 2012年 5月 7日 | |
| Application brief | ADS1278-SP Power-On Reset Procedure | PDF | HTML | 2025年 3月 25日 | |
| Application note | Digital Filter Types in Delta-Sigma ADCs (Rev. A) | PDF | HTML | 2023年 3月 29日 | |
| E-book | Fundamentals of Precision ADC Noise Analysis (Rev. A) | 2020年 6月 19日 | ||
| E-book | Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs | 2015年 3月 19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)。
計算工具
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
設計工具
ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.
The ADC-TO-VREF-SELECT tool enables the pairing of TI analog-to-digital converters (ADCs) and series voltage references. Users can select an ADC device and the desired reference voltage, and the tool will list up to two voltage reference recommendations.
支援產品和硬體
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 (...)
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 (...)
模擬工具
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 (...)
使用指南: PDF
參考設計
TIDA-00002 — 適用於高溫應用的嚴苛環境採集終端 (HEAT) EVM 平台
HEATEVM 是一款 MCM，旨在提供一個可用於訊號調整與處理器評估的高溫平台。此模組由一組完整的零組件組成，設計可承受高達 200 °C 的極端操作溫度。電路板採用聚酰亞胺材料製成，同樣適用於此類高溫環境。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| CFP (HFQ) | 84 | Ultra Librarian |
| CFP (HKP) | 84 | Ultra Librarian |
| DIESALE (KGD) | — | |
| HTQFP (PAP) | 64 | Ultra Librarian |
訂購與品質
內含資訊：
- 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
- 進行中的可靠性監測
內含資訊：
- 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。