ADS1259

활성

공장 자동화를 위한 저 드리프트 전압 레퍼런스를 지원하는 24비트, 14.4kSPS, 1채널 델타-시그마 ADC

제품 상세 정보

Resolution (Bits) 24 Sample rate (max) (ksps) 14.4 Number of input channels 1 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-ended Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 2.75, 5.35 Input voltage range (min) (V) -2.7, 0 Features 50/60 Hz Rejection, Oscillator Operating temperature range (°C) -40 to 105 Power consumption (typ) (mW) 13 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.25
Resolution (Bits) 24 Sample rate (max) (ksps) 14.4 Number of input channels 1 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-ended Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 2.75, 5.35 Input voltage range (min) (V) -2.7, 0 Features 50/60 Hz Rejection, Oscillator Operating temperature range (°C) -40 to 105 Power consumption (typ) (mW) 13 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.25
TSSOP (PW) 20 41.6 mm² (6.5 mm × 6.4 mm)
  • 24 Bits, No Missing Codes
  • Output Data Rates From 10 To 14kSPS
  • High Performance:
    • INL: 0.4ppm
    • Reference Drift: 2ppm/°C
    • Gain Drift: 0.5ppm/°C
    • Offset Drift: 0.05µV/°C
    • Noise: 0.7µVRMS at 60SPS
  • Simultaneous 50/60Hz Rejection at 10SPS
  • Single-Cycle Settling
  • Internal Oscillator
  • Out-of-Range Detection
  • Readback Data Integrity by Checksum and Redundant Data Read Capability
  • SPI-Compatible Interface
  • Analog Supply: +5V or ±2.5V
  • Digital Supply: +2.7V to +5V
  • Low Power: 13mW
  • APPLICATIONS
    • Industrial Process Control
    • Scientific Instrumentation
    • Test and Measurement

All other trademarks are the property of their respective owners

  • 24 Bits, No Missing Codes
  • Output Data Rates From 10 To 14kSPS
  • High Performance:
    • INL: 0.4ppm
    • Reference Drift: 2ppm/°C
    • Gain Drift: 0.5ppm/°C
    • Offset Drift: 0.05µV/°C
    • Noise: 0.7µVRMS at 60SPS
  • Simultaneous 50/60Hz Rejection at 10SPS
  • Single-Cycle Settling
  • Internal Oscillator
  • Out-of-Range Detection
  • Readback Data Integrity by Checksum and Redundant Data Read Capability
  • SPI-Compatible Interface
  • Analog Supply: +5V or ±2.5V
  • Digital Supply: +2.7V to +5V
  • Low Power: 13mW
  • APPLICATIONS
    • Industrial Process Control
    • Scientific Instrumentation
    • Test and Measurement

All other trademarks are the property of their respective owners

The ADS1259 is a high-linearity, low-drift, 24-bit, analog-to-digital converter (ADC) designed for the needs of industrial process control, precision instrumentation, and other exacting applications. Combined with a signal amplifier (such as the PGA280), a high-resolution, high-accuracy measurement system is formed that is capable of digitizing a wide range of signals.

The converter uses a fourth-order, inherently stable, delta-sigma (ΔΣ) modulator that provides outstanding noise and linearity performance. The data rates are programmable up to 14kSPS including 10SPS, 50SPS, and 60SPS that provide excellent normal mode line-cycle rejection. The digital filter can be programmed for a fast settling mode where the conversions settle in a single cycle, or programmed for a high line-cycle rejection mode. A fast responding input over-range detector flags the conversion data if an input over-range should occur.

The ADS1259 also provides an integrated low-noise, very low drift 2.5V reference. The on-chip oscillator, an external crystal, or an external clock can by used as the ADC clock source.

Data and control communication are handled over a 4MHz, SPI-compatible interface capable of operating with a minimum of three wires. Data integrity is augmented by data bytes checksum and redundant data read capability. Conversions are synchronized either by command or by pin.

Dissipating only 13mW in operation, the ADS1259 can be powered down, dissipating less than 25µW. The ADS1259 is offered in a TSSOP-20 package and is fully specified from –40°C to +105°C.

The ADS1259 is a high-linearity, low-drift, 24-bit, analog-to-digital converter (ADC) designed for the needs of industrial process control, precision instrumentation, and other exacting applications. Combined with a signal amplifier (such as the PGA280), a high-resolution, high-accuracy measurement system is formed that is capable of digitizing a wide range of signals.

The converter uses a fourth-order, inherently stable, delta-sigma (ΔΣ) modulator that provides outstanding noise and linearity performance. The data rates are programmable up to 14kSPS including 10SPS, 50SPS, and 60SPS that provide excellent normal mode line-cycle rejection. The digital filter can be programmed for a fast settling mode where the conversions settle in a single cycle, or programmed for a high line-cycle rejection mode. A fast responding input over-range detector flags the conversion data if an input over-range should occur.

The ADS1259 also provides an integrated low-noise, very low drift 2.5V reference. The on-chip oscillator, an external crystal, or an external clock can by used as the ADC clock source.

Data and control communication are handled over a 4MHz, SPI-compatible interface capable of operating with a minimum of three wires. Data integrity is augmented by data bytes checksum and redundant data read capability. Conversions are synchronized either by command or by pin.

Dissipating only 13mW in operation, the ADS1259 can be powered down, dissipating less than 25µW. The ADS1259 is offered in a TSSOP-20 package and is fully specified from –40°C to +105°C.

다운로드 스크립트와 함께 비디오 보기 비디오

기술 자료

검색된 결과가 없습니다. 검색어를 지우고 다시 시도하세요.
8개 모두 보기
상위 문서 유형 직함 형식 옵션 최신 영어 버전 다운로드 날짜
* 데이터 시트 Industrial, 14kSPS, 24-Bit Analog-to-Digital Converter with Low-Drift Reference datasheet (Rev. D) 2011. 8. 26
애플리케이션 노트 Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs (Rev. A) PDF | HTML 2024. 3. 18
애플리케이션 노트 A Basic Guide to Bridge Measurements (Rev. A) PDF | HTML 2024. 3. 13
애플리케이션 노트 Digital Filter Types in Delta-Sigma ADCs (Rev. A) PDF | HTML 2023. 3. 29
애플리케이션 노트 Communication Methods for Data Integrity Using Delta-Sigma Data Converters (Rev. A) PDF | HTML 2021. 8. 23
e북 Fundamentals of Precision ADC Noise Analysis (Rev. A) 2020. 6. 19
아날로그 디자인 학술지 Enabling precision delta‐sigma ADCs in functional safety applications 2020. 3. 19
e북 Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs 2015. 3. 19

설계 및 개발

추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.

평가 보드

ADS1259EVM-PDK — ADS1259 성능 데모 키트

ADS1259EVM-PDK는 ADS1259EVM과 DSP 기반 MMB0 마더보드를 결합한 완전한 평가/데모 키트입니다. 마더보드 및 ADCPro™ 평가 소프트웨어는 사용 가능한 USB 포트를 통해 개인용 컴퓨터와 함께 사용할 수 있도록 제공됩니다. 이 보드 조합을 통해 ADS1259 및 PGA280을 평가할 수 있습니다.

 

사용 설명서: PDF
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시뮬레이션 모델

ADS1259 IBIS Model

SBAM018.ZIP (112 KB) - IBIS 모델
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계산 툴

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

아날로그 엔지니어의 계산기는 아날로그 회로 설계 엔지니어가 정기적으로 사용하는 많은 반복 계산의 속도를 높이도록 설계되었습니다. 이 PC 기반 툴은 피드백 저항을 사용한 연산 증폭기 게인 설정부터 아날로그-디지털 컨버터(ADC) 드라이브 버퍼 회로 안정화를 위한 적절한 회로 설계 요소 선택에 이르기까지 다양한 일반적인 계산 목록이 포함된 그래픽 인터페이스를 제공합니다.

이 계산기는 독립 실행형 툴로 유용할 뿐만 아니라 아날로그 엔지니어의 포켓 레퍼런스에 설명된 개념과도 잘 어울립니다.

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설계 툴

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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지원 및 교육

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