首頁 數據轉換器 類比轉數位轉換器 (ADC) 精確 ADC
首頁
數據轉換器
類比轉數位轉換器 (ADC)
精確 ADC

ADS1258-EP

現行

強化型產品 16 通道 24 位元數位轉類比轉換器 (ADC)

立即訂購
產品規格表

ADS1258-EP

現行
產品規格表 立即訂購

產品詳細資料

Resolution (Bits) 24 Sample rate (max) (ksps) 125 Number of input channels 16 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Multiplexed Rating HiRel Enhanced Product Reference mode External Input voltage range (max) (V) 2.75, 5.35 Input voltage range (min) (V) -2.7, -0.1 Features GPIO, Oscillator, Temp Sensor Operating temperature range (°C) -55 to 125 Power consumption (typ) (mW) 42 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 SNR (dB) 117 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.25
Resolution (Bits) 24 Sample rate (max) (ksps) 125 Number of input channels 16 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Multiplexed Rating HiRel Enhanced Product Reference mode External Input voltage range (max) (V) 2.75, 5.35 Input voltage range (min) (V) -2.7, -0.1 Features GPIO, Oscillator, Temp Sensor Operating temperature range (°C) -55 to 125 Power consumption (typ) (mW) 42 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 SNR (dB) 117 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.25
HTQFP (PHP) 48 81 mm² (9 mm × 9 mm) VQFNP (RTC) 48 49 mm² (7 mm × 7 mm)
  • 24 Bits, No Missing Codes
  • Fixed-Channel or Automatic Channel Scan
  • Fixed-Channel Data Rate: 125 kSPS
  • Auto-Scan Data Rate: 23.7 kSPS/Channel
  • Single-Conversion Settled Data
  • 16 Single-Ended or 8 Differential Inputs
  • Unipolar (5 V) or Bipolar (±2.5 V) Operation
  • Low Noise: 2.8 µVRMS at 1.8 kSPS
  • 0.0003% Integral Nonlinearity
  • DC Stability (typical):
    0.02 µV/°C Offset Drift, 0.4 ppm/°C Gain Drift
  • Open-Sensor Detection
  • Conversion Control Pin
  • Multiplexer Output for External Signal Conditioning
  • On-Chip Temperature, Reference, Offset, Gain, and
    Supply Voltage Readback
  • 42-mW Power Dissipation
  • Standby, Sleep, and Power-Down Modes
  • 8 General-Purpose Inputs/Outputs (GPIO)
  • 32.768-kHz Crystal Oscillator or External Clock
  • APPLICATIONS
    • Medical, Avionics, and Process Control
    • Machine and System Monitoring
    • Fast Scan Multi-Channel Instrumentation
    • Industrial Systems
    • Test and Measurement Systems
  • APPLICATIONS
    • Controlled Baseline
    • One Assembly/Test Site
    • One Fabrication Site
    • Available in Military (–55°C/125°C) and
      Industrial (–40°C/105°C) Temperature Ranges(1)
    • Extended Product Life Cycle
    • Extended Product-Change Notification
    • Product Traceability

(1) Custom temperature ranges available
All other trademarks are the property of their respective owners
  • 24 Bits, No Missing Codes
  • Fixed-Channel or Automatic Channel Scan
  • Fixed-Channel Data Rate: 125 kSPS
  • Auto-Scan Data Rate: 23.7 kSPS/Channel
  • Single-Conversion Settled Data
  • 16 Single-Ended or 8 Differential Inputs
  • Unipolar (5 V) or Bipolar (±2.5 V) Operation
  • Low Noise: 2.8 µVRMS at 1.8 kSPS
  • 0.0003% Integral Nonlinearity
  • DC Stability (typical):
    0.02 µV/°C Offset Drift, 0.4 ppm/°C Gain Drift
  • Open-Sensor Detection
  • Conversion Control Pin
  • Multiplexer Output for External Signal Conditioning
  • On-Chip Temperature, Reference, Offset, Gain, and
    Supply Voltage Readback
  • 42-mW Power Dissipation
  • Standby, Sleep, and Power-Down Modes
  • 8 General-Purpose Inputs/Outputs (GPIO)
  • 32.768-kHz Crystal Oscillator or External Clock
  • APPLICATIONS
    • Medical, Avionics, and Process Control
    • Machine and System Monitoring
    • Fast Scan Multi-Channel Instrumentation
    • Industrial Systems
    • Test and Measurement Systems
  • APPLICATIONS
    • Controlled Baseline
    • One Assembly/Test Site
    • One Fabrication Site
    • Available in Military (–55°C/125°C) and
      Industrial (–40°C/105°C) Temperature Ranges(1)
    • Extended Product Life Cycle
    • Extended Product-Change Notification
    • Product Traceability

(1) Custom temperature ranges available
All other trademarks are the property of their respective owners

The ADS1258 is a 16-channel (multiplexed), low-noise, 24-bit, delta-sigma () analog-to-digital converter (ADC) that provides single-cycle settled data at channel scan rates from 1.8k to 23.7k samples per second (SPS) per channel. A flexible input multiplexer accepts combinations of eight differential or 16 single-ended inputs with a full-scale differential range of 5 V or true bipolar range of ±2.5 V when operating with a 5-V reference. The fourth-order delta-sigma modulator is followed by a fifth-order sinc digital filter optimized for low-noise performance.

The differential output of the multiplexer is accessible to allow signal conditioning prior to the input of the ADC. Internal system monitor registers provide supply voltage, temperature, reference voltage, gain, and offset data.

An onboard PLL generates the system clock from a 32.768-kHz crystal, or can be overridden by an external clock source. A buffered system clock output (15.7 MHz) is provided to drive a microcontroller or additional converters.

Serial digital communication is handled via an SPI-compatible interface. A simple command word structure controls channel configuration, data rates, digital I/O, monitor functions, etc.

Programmable sensor bias current sources can be used to bias sensors or verify sensor integrity.

The ADS1258 operates from a unipolar 5-V or bipolar ±2.5-V analog supply and a digital supply compatible with interfaces ranging from 2.7 V to 5.25 V. The ADS1258 is available in QFN-48 and QFP-48 packages.

The ADS1258 is a 16-channel (multiplexed), low-noise, 24-bit, delta-sigma () analog-to-digital converter (ADC) that provides single-cycle settled data at channel scan rates from 1.8k to 23.7k samples per second (SPS) per channel. A flexible input multiplexer accepts combinations of eight differential or 16 single-ended inputs with a full-scale differential range of 5 V or true bipolar range of ±2.5 V when operating with a 5-V reference. The fourth-order delta-sigma modulator is followed by a fifth-order sinc digital filter optimized for low-noise performance.

The differential output of the multiplexer is accessible to allow signal conditioning prior to the input of the ADC. Internal system monitor registers provide supply voltage, temperature, reference voltage, gain, and offset data.

An onboard PLL generates the system clock from a 32.768-kHz crystal, or can be overridden by an external clock source. A buffered system clock output (15.7 MHz) is provided to drive a microcontroller or additional converters.

Serial digital communication is handled via an SPI-compatible interface. A simple command word structure controls channel configuration, data rates, digital I/O, monitor functions, etc.

Programmable sensor bias current sources can be used to bias sensors or verify sensor integrity.

The ADS1258 operates from a unipolar 5-V or bipolar ±2.5-V analog supply and a digital supply compatible with interfaces ranging from 2.7 V to 5.25 V. The ADS1258 is available in QFN-48 and QFP-48 packages.
filter 尋找其它 精確 ADC
下載 觀看有字幕稿的影片 影片

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 11
重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 16-Channel, 24-Bit, Analog-to-Digital Converter datasheet (Rev. D) 2011/3/18
* 輻射及可靠性報告 Reliability Report ADS1258MPHPTEP 2014/12/22
* 輻射及可靠性報告 ADS1258MRTCTEP Reliability Report 2011/8/25
* 輻射及可靠性報告 ADS1258MPHPTEP Reliability Report 2011/8/25
* VID ADS1258-EP VID V6209626 2016/6/21
應用說明 Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs (Rev. A) PDF | HTML 2024/3/18
應用說明 A Basic Guide to Bridge Measurements (Rev. A) PDF | HTML 2024/3/13
應用說明 Digital Filter Types in Delta-Sigma ADCs (Rev. A) PDF | HTML 2023/3/29
電子書 Fundamentals of Precision ADC Noise Analysis (Rev. A) 2020/6/19
電子書 Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs 2015/3/19
應用說明 ADS1258, ADS1258-EP, and ADS1158 SPI™ Timeout Function 2012/4/20

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)。

支援軟體

ADS1258-C-EXAMPLE-CODE — ADS1258 Example C Code

Expedite your embedded design using this example C code for the ADS1258
支援產品和硬體
模擬型號

ADS1158, ADS1258 and ADS1258-EP IBIS Model

SBAM124.ZIP (77 KB) - IBIS 模型
支援產品和硬體
計算工具

ANALOG-ENGINEER-CALC — PC software analog engineer's calculator

類比工程師的計算機旨在加速類比電路設計工程師定期使用的許多重複計算。此基於 PC 的工具提供圖形介面，列出各種常見計算，從使用回饋電阻器設定運算放大器增益到選擇適當的電路設計元件以穩定類比數位轉換器 (ADC) 驅動緩衝電路。

除了作為獨立工具使用外，此計算機還與類比工程師口袋參考中描述的概念相得益彰。

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
封裝 針腳 CAD 符號、佔位空間與 3D 模型
HTQFP (PHP) 48 Ultra Librarian
VQFNP (RTC) 48 Ultra Librarian
適用 TI 的評估品項標準條款與條件。

訂購與品質

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。

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

以英文檢視所有論壇主題

內容係由 TI 和社群貢獻者依「現狀」提供，且不構成 TI 規範。檢視使用條款。

若有關於品質、封裝或訂購 TI 產品的問題，請參閱 TI 支援。​​​​​​​​​​​​​​

影片