支援軟體
ADS1235-C-EXAMPLE-CODE — ADS1235 example C code
Expedite your embedded design using this example C code for the ADS1235
ADS1235-Q1
- AEC-Q100 qualified for automotive applications
- Temperature grade 1: –40°C to +125°C, TA
- 24-bit, high-precision ADC:
- 120,000 noise-free counts
(10-mV input, 10 SPS) - Offset drift: 1 nV/°C
- Gain drift: 0.5 ppm/°C
- 120,000 noise-free counts
- Three differential or five single-ended inputs
- Two reference inputs
- Wide input voltage range: ±7 mV to ±5 V
- Low-noise PGA, gain: 1, 64, and 128
- Data rate: 2.5 SPS to 7200 SPS
- AC- or DC-bridge excitation option
- Chop mode for zero-drift operation
- Simultaneous 50-Hz and 60-Hz rejection mode
- Single-cycle settling mode
- Missing reference input monitor
- Signal overrange monitor
- Temperature sensor
- Cyclic redundancy check (CRC)
- 5-V or ±2.5-V power supply
The ADS1235-Q1 is a precision, 7200-SPS, delta-sigma (ΔΣ) analog-to-digital converter (ADC) with an integrated programmable gain amplifier (PGA). This device also includes diagnostic features such as PGA overrange and reference monitors. The ADC provides high-accuracy, zero-drift conversion data for high-precision equipment, including weigh scales, strain gauges, and resistive pressure sensors.
The ADC has signal and reference multiplexers that support three differential signal inputs and two reference inputs. The ADC also includes a low-noise PGA that provides gains of 1, 64, and 128. The ADC also has a 24-bit ΔΣ modulator and programmable digital filter.
The high-impedance inputs (1 GΩ) of the PGA reduce measurement error that is caused by sensor loading.
The ADC supports ac-bridge excitation to remove the drift errors from the sensor wiring. The ADC provides the clock control signals for the ac-excitation operation.
The flexible digital filter is programmable for single-cycle settled conversions, and provides 50-Hz and 60-Hz line cycle rejection at the same time.
The ADS1235-Q1 is available in a 5-mm × 5-mm VQFN package, and is specified across the –40°C to +125°C temperature range.
技術文件
找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 7 | 重要文件 | 類型 | 標題 | 格式選項 | 日期 |
|---|---|---|---|---|
| * | Data sheet | ADS1235-Q1 Automotive Precision, 3-Channel, Differential-Input, 7200-SPS, 24-Bit Delta-Sigma ADC for Bridge Sensors datasheet | PDF | HTML | 2019年 10月 22日 |
| Application note | Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs (Rev. A) | PDF | HTML | 2024年 3月 18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 (Rev. A) | 2020年 6月 19日 | ||
| White paper | Automotive On-Board Weighing with ADS1261-Q1 | 2019年 1月 9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
ADS1235EVM — ADS1235 評估模組
ADS1235 評估模組 (EVM) 是用於評估 ADS1235 類比轉數位轉換器 (ADC) 的平台。ADS1235 是一款低漂移，24 位元，7200-SPS，6 通道 delta-sigma (ΔΣ) ADC，搭載整合式 PGA，適用於低雜訊橋量測。這套含感測器功能的 ADC 提供高準確度，單晶片量測解決方案，適合最嚴苛要求的測試與量測儀器，其中包括磅秤，應變規感測器與高解析度壓力量測。
提供 ADS1235EVM 和 ΔΣ EvaluaTIon 軟體 (DELTASIGMAEVAL-GUI) 以縮短原型開發時間，加快產品上市速度。
使用指南: PDF
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
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFNP (RHM) | 32 | 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