ADS1120-Q1
- AEC-Q100 qualified for automotive applications
- Temperature grade 1: –40°C to +125°C, TA
- Functional Safety-Capable
- Wide supply range: 2.3 V to 5.5 V
- Programmable gain: 1 V/V to 128 V/V
- Programmable data rates: 5 SPS to 2 kSPS
- 16-bit, noise-free resolution at 20 SPS
- Simultaneous 50-Hz and 60-Hz rejection at
20 SPS with single-cycle settling digital filter - Two differential or four single-ended inputs
- Dual-matched programmable current sources:
50 µA to 1.5 mA - Internal 2.048-V reference: 5 ppm/°C (typ) drift
- Internal 2% accurate oscillator
- Internal temperature sensor:
0.5°C (typ) accuracy - SPI-compatible interface (mode 1)
The ADS1120-Q1 is a precision, 16-bit, analog-to-digital converter (ADC) that offers many integrated features to reduce system cost and component count in applications measuring small sensor signals. The device features two differential or four single-ended inputs through a flexible input multiplexer (MUX), a low-noise, programmable gain amplifier (PGA), two programmable excitation current sources, a voltage reference, an oscillator, a low-side switch, and a precision temperature sensor.
The device can perform conversions at data rates up to 2000 samples-per-second (SPS) with single-cycle settling. At 20 SPS, the digital filter offers simultaneous 50-Hz and 60-Hz rejection for noisy industrial applications. The internal PGA offers gains up to 128 V/V. This PGA makes the ADS1120-Q1 ideally-suited for applications measuring small sensor signals, such as resistance temperature detectors (RTDs), thermocouples, thermistors, and bridge sensors. The device supports measurements of pseudo- or fully-differential signals when using the PGA. Alternatively, the device can be configured to bypass the internal PGA while still providing high input impedance and gains up to 4 V/V, allowing for single-ended measurements.
Power consumption is as low as 120 µA when operating in duty-cycle mode with the PGA disabled. Communication to the device is established through a mode 1 SPI-compatible interface. The ADS1120-Q1 is offered in a TSSOP-16 package and is specified over a temperature range of –40°C to +125°C.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 날짜 |
|---|---|---|---|---|
| * | Data sheet | ADS1120-Q1 Automotive, 4-Channel, 2-kSPS, Low-Power, 16-Bit ADC With Integrated PGA and Reference datasheet (Rev. B) | PDF | HTML | 2020/05/15 |
| Application note | Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs (Rev. A) | PDF | HTML | 2024/03/18 | |
| Application note | A Basic Guide to Bridge Measurements (Rev. A) | PDF | HTML | 2024/03/13 | |
| Application note | Digital Filter Types in Delta-Sigma ADCs (Rev. A) | PDF | HTML | 2023/03/29 | |
| Application note | RTD Ratiometric Measurements and Filtering Using the ADS1148 and ADS1248 (Rev. A) | PDF | HTML | 2023/03/27 | |
| E-book | Fundamentals of Precision ADC Noise Analysis (Rev. A) | 2020/06/19 | ||
| Functional safety information | ADS1120-Q1 Functional Safety FIT Rate, FMD and Pin FMA | 2020/04/24 | ||
| Analog Design Journal | How delta-sigma ADCs work, Part 1 (Rev. A) | 2016/09/19 | ||
| E-book | Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs | 2015/03/19 | ||
| Analog Design Journal | How delta-sigma ADCs work, Part 2 | 2011/11/09 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
ADS1120EVM — ADS1120 평가 모듈
ADS1120 평가 모듈(EVM)은 ADS1120, 16비트, 멀티 채널, 델타-시그마 ADC(아날로그-디지털 컨버터)를 위한 평가 시스템입니다. 이 EVM은 최소의 회로와 함께 ADS1120을 사용하여 프로토타입 제작 및 부품 평가를 위해 기능을 시연합니다. ADS1120의 핀은 ADS1120EVM 커넥터의 다양한 연결 방식을 통해 액세스할 수 있습니다. 이 EVM에는 개인용 컴퓨터에서 사용하기 위한 MSP430도 포함되어 있습니다. 이 EVM은 USB 포트를 통해 컴퓨터에 연결하도록 해 줍니다. ADS1120EVM은 플러그인을 (...)
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 (...)
지원되는 제품 및 하드웨어
ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.
지원되는 제품 및 하드웨어
PSPICE-FOR-TI — TI 설계 및 시뮬레이션 툴용 PSpice®
TI 설계 및 시뮬레이션 환경용 PSpice는 기본 제공 라이브러리를 이용해 복잡한 혼합 신호 설계를 시뮬레이션할 수 있습니다. 레이아웃 및 제작에 착수하기 (...)
TINA-TI — SPICE 기반 아날로그 시뮬레이션 프로그램
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| TSSOP (PW) | 16 | Ultra Librarian |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.