홈 데이터 컨버터 아날로그-디지털 컨버터(ADC) 정밀 ADC
홈
데이터 컨버터
아날로그-디지털 컨버터(ADC)
정밀 ADC

ADS1234

활성

브리지 센서용 24비트, 80SPS, 4채널(차동), 핀 프로그래머블 델타-시그마 ADC

지금 주문하기
데이터 시트

ADS1234

활성
데이터 시트 지금 주문하기

제품 상세 정보

Resolution (Bits) 24 Sample rate (max) (ksps) 0.08 Number of input channels 4 Interface type SPI Architecture Delta-Sigma Input type Differential Multichannel configuration Multiplexed Rating Catalog Reference mode External Input voltage range (max) (V) 2.5 Input voltage range (min) (V) 0 Features 50/60 Hz Rejection, Oscillator, PGA Operating temperature range (°C) -40 to 105 Power consumption (typ) (mW) 4.3 Analog supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 5.3 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.3
Resolution (Bits) 24 Sample rate (max) (ksps) 0.08 Number of input channels 4 Interface type SPI Architecture Delta-Sigma Input type Differential Multichannel configuration Multiplexed Rating Catalog Reference mode External Input voltage range (max) (V) 2.5 Input voltage range (min) (V) 0 Features 50/60 Hz Rejection, Oscillator, PGA Operating temperature range (°C) -40 to 105 Power consumption (typ) (mW) 4.3 Analog supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 5.3 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.3
TSSOP (PW) 28 62.08 mm² (9.7 mm × 6.4 mm)
  • Complete front-end for bridge sensors
  • 23.5-bits effective resolution at gain = 1
  • 19.2-bits noise-free resolution at gain = 64
  • Low-noise PGA
  • Selectable gains of 1, 2, 64, and 128
  • RMS noise:
    • 17nV at 10SPS at gain = 128
    • 44nV at 80SPS at gain = 128
  • 100dB simultaneous 50Hz and 60Hz rejection
  • Flexible clocking:
    • Low-drift internal oscillator
    • Optional external crystal
  • Selectable 10SPS or 80SPS data rates
  • Easy ratiometric measurements:
    • External voltage reference up to 5V
  • Two-channel differential input with internal temperature sensor (ADS1232)
  • Four-channel differential input (ADS1234)
  • Two-wire serial interface
  • Supply voltage range: 2.7V to 5.3V
  • Temperature range: –40°C to +105°C
  • Packages: TSSOP-24 (ADS1232) or TSSOP-28 (ADS1234)
  • Complete front-end for bridge sensors
  • 23.5-bits effective resolution at gain = 1
  • 19.2-bits noise-free resolution at gain = 64
  • Low-noise PGA
  • Selectable gains of 1, 2, 64, and 128
  • RMS noise:
    • 17nV at 10SPS at gain = 128
    • 44nV at 80SPS at gain = 128
  • 100dB simultaneous 50Hz and 60Hz rejection
  • Flexible clocking:
    • Low-drift internal oscillator
    • Optional external crystal
  • Selectable 10SPS or 80SPS data rates
  • Easy ratiometric measurements:
    • External voltage reference up to 5V
  • Two-channel differential input with internal temperature sensor (ADS1232)
  • Four-channel differential input (ADS1234)
  • Two-wire serial interface
  • Supply voltage range: 2.7V to 5.3V
  • Temperature range: –40°C to +105°C
  • Packages: TSSOP-24 (ADS1232) or TSSOP-28 (ADS1234)

The ADS1232 and ADS1234 (ADS123x) are precision, 24-bit, analog-to-digital converters (ADCs). With a low-noise programmable gain amplifier (PGA), a precision delta-sigma ADC, and internal oscillator. The ADS123x provides a complete front-end solution for bridge sensor applications including weigh scales, strain gauges, and pressure sensors.

An input multiplexer (MUX) accepts either two (ADS1232) or four (ADS1234) differential inputs. The ADS1232 also includes a temperature sensor to monitor ambient temperature. The low-noise PGA has a selectable gain of 1, 2, 64, or 128, supporting a full-scale differential input of ±2.5V, ±1.25V, ±39mV, or ±19.5mV.

The delta-sigma ADC provides a maximum of 23.5-bits effective resolution, and supports two data rates: 10SPS (providing 50Hz and 60Hz rejection) and 80SPS. The ADS123x can be clocked externally using an oscillator or a crystal, or by the internal oscillator.

Offset calibration is performed on-demand, and the ADS123x can be put in a low-power standby mode or shut off completely in power-down mode. The ADS123x are operated through simple pin-driven control—there are no digital registers to program.

Data are output over a two-wire serial interface that connects directly to the MSP430 and other microcontrollers.

The ADS1232 and ADS1234 (ADS123x) are precision, 24-bit, analog-to-digital converters (ADCs). With a low-noise programmable gain amplifier (PGA), a precision delta-sigma ADC, and internal oscillator. The ADS123x provides a complete front-end solution for bridge sensor applications including weigh scales, strain gauges, and pressure sensors.

An input multiplexer (MUX) accepts either two (ADS1232) or four (ADS1234) differential inputs. The ADS1232 also includes a temperature sensor to monitor ambient temperature. The low-noise PGA has a selectable gain of 1, 2, 64, or 128, supporting a full-scale differential input of ±2.5V, ±1.25V, ±39mV, or ±19.5mV.

The delta-sigma ADC provides a maximum of 23.5-bits effective resolution, and supports two data rates: 10SPS (providing 50Hz and 60Hz rejection) and 80SPS. The ADS123x can be clocked externally using an oscillator or a crystal, or by the internal oscillator.

Offset calibration is performed on-demand, and the ADS123x can be put in a low-power standby mode or shut off completely in power-down mode. The ADS123x are operated through simple pin-driven control—there are no digital registers to program.

Data are output over a two-wire serial interface that connects directly to the MSP430 and other microcontrollers.
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기술 자료

검색된 결과가 없습니다. 검색어를 지우고 다시 시도하세요.
9개 모두 보기
상위 문서 유형 직함 형식 옵션 최신 영어 버전 다운로드 날짜
* 데이터 시트 ADS123x 2- and 4-Channel, 24-Bit, Delta-Sigma ADCs for Bridge Sensors datasheet (Rev. H) PDF | HTML 2025. 6. 2
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
e북 Fundamentals of Precision ADC Noise Analysis (Rev. A) 2020. 6. 19
애플리케이션 노트 Industrial data-acquisition interfaces with digital isolators (Rev. A) 2018. 10. 2
e북 Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs 2015. 3. 19
애플리케이션 노트 Delta-Sigma ADC Design for Bridge Sensor Applications 2011. 9. 30
백서 Complete Front End Solutions for Weigh Scales 2007. 6. 14

설계 및 개발

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

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.

지원되는 제품 및 하드웨어
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.
지원되는 제품 및 하드웨어
패키지 핀 CAD 기호, 풋프린트 및 3D 모델
TSSOP (PW) 28 Ultra Librarian
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주문 및 품질

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지원 및 교육

TI 엔지니어의 기술 지원을 받을 수 있는 TI E2E™ 포럼

포럼 주제 모두 보기(영문)

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