ADS1258-EP

アクティブ

エンハンスド製品、16 チャネル、24 ビット A/D コンバータ(ADC)

製品詳細

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.

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技術資料

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上位の文書 タイプ タイトル フォーマットオプション 最新の英語版をダウンロード 日付
* データシート 16-Channel, 24-Bit, Analog-to-Digital Converter データシート (Rev. D) 2011/03/18
* 放射線と信頼性レポート Reliability Report ADS1258MPHPTEP 2014/12/22
* 放射線と信頼性レポート ADS1258MRTCTEP Reliability Report 2011/08/25
* 放射線と信頼性レポート ADS1258MPHPTEP Reliability Report 2011/08/25
* VID ADS1258-EP VID V6209626 2016/06/21
アプリケーション・ノート Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs (Rev. A) PDF | HTML 2024/03/18
アプリケーション・ノート A Basic Guide to Bridge Measurements (Rev. A) PDF | HTML 2024/03/13
アプリケーション・ノート Digital Filter Types in Delta-Sigma ADCs (Rev. A) PDF | HTML 2023/03/29
e-Book(PDF) Fundamentals of Precision ADC Noise Analysis (Rev. A) 2020/06/19
e-Book(PDF) Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs 2015/03/19
アプリケーション・ノート ADS1258, ADS1258-EP, and ADS1158 SPI™ Timeout Function 2012/04/20

設計と開発

その他のアイテムや必要なリソースを参照するには、以下のタイトルをクリックして詳細ページをご覧ください。

サポート・ソフトウェア

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

Expedite your embedded design using this example C code for the ADS1258
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シミュレーション・モデル

ADS1158, ADS1258 and ADS1258-EP IBIS Model

SBAM124.ZIP (77 KB) - IBIS モデル
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計算ツール

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

アナログ エンジニア向けカリキュレータは、アナログ回路設計エンジニアが日常的に使用する反復的な計算の多くを迅速化します。この PC ベース ツールはグラフィカル インターフェイスにより、帰還抵抗を使用したオペアンプのゲイン設定から、A/D コンバータ (ADC) のドライブ バッファ回路の安定化に最適な部品の選択に至るまで、一般的に行われている各種計算のリストを表示します。

スタンドアロン ツールとして使用できるほか、『アナログ回路設計式一覧ポケット ガイド』で説明されているコンセプトと組み合わせることもできます。

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設計ツール

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.
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パッケージ ピン数 CAD シンボル、フットプリント、および 3D モデル
HTQFP (PHP) 48 Ultra Librarian
VQFNP (RTC) 48 Ultra Librarian

購入と品質

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