ADS1120-Q1
ADC delta-sigma de baja potencia de 16 bits, 2 kSPS y 4 canales para automoción con PGA y VREF para
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.
Documentación técnica
Tipo | Título | Fecha | ||
---|---|---|---|---|
* | Data sheet | ADS1120-Q1 Automotive, 4-Channel, 2-kSPS, Low-Power, 16-Bit ADC With Integrated PGA and Reference datasheet (Rev. B) | PDF | HTML | 15 may 2020 |
Application note | Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs (Rev. A) | PDF | HTML | 18 mar 2024 | |
Application note | A Basic Guide to Bridge Measurements (Rev. A) | PDF | HTML | 13 mar 2024 | |
Application note | Digital Filter Types in Delta-Sigma ADCs (Rev. A) | PDF | HTML | 29 mar 2023 | |
Application note | RTD Ratiometric Measurements and Filtering Using the ADS1148 and ADS1248 (Rev. A) | PDF | HTML | 27 mar 2023 | |
E-book | Fundamentals of Precision ADC Noise Analysis | 19 jun 2020 | ||
Functional safety information | ADS1120-Q1 Functional Safety FIT Rate, FMD and Pin FMA | 24 abr 2020 | ||
Analog Design Journal | How delta-sigma ADCs work, Part 1 (Rev. A) | 19 sep 2016 | ||
E-book | Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs | 19 mar 2015 | ||
Analog Design Journal | How delta-sigma ADCs work, Part 2 | 09 nov 2011 |
Diseño y desarrollo
Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.
ADS1120EVM — Módulo de evaluación de ADS1120
The ADS1120 evaluation module (EVM) is an evaluation system for the ADS1120, a 16-bit, multichannel, delta-sigma analog-to-digital converter (ADC). The EVM uses the ADS1120 along with minimal circuitry to demonstrate functionality for prototyping and part evaluation. The pins of the ADS1120 (...)
SBAC227 — ADS1x20 Example Code
Productos y hardware compatibles
Productos
ADC de precisión
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 (...)
Productos y hardware compatibles
Productos
Amplificadores operacionales de precisión (Vox < 1 mV)
Amplificadores de propósito general
Amplificadores operacionales para audio
Amplificadores de transimpedancia
Amplificadores operacionales de alta velocidad (GBW ≥ 50 MHz)
Amplificadores operacionales de potencia
Amplificadores de video
Drivers de línea
Amplificadores de transconductancia y drivers láser
Amplificadores totalmente diferenciales
ADC de precisión
AFE para biosensores
ADC de alta velocidad (≥ 10 MSPS)
Receptores
Controladores de pantalla táctil
Amplificadores diferenciales
Amplificadores de instrumentación
Receptores de línea de audio
Amplificadores analógicos de detección de corriente
Monitores de potencia digitales
Amplificadores analógicos de detección de corriente con resistencia de derivación integrada
Monitores de potencia digitales con resistencia de derivación integrada
Servicios de troqueles y obleas
PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI
TINA-TI — Programa de simulación analógica basado en SPICE
Encapsulado | Pines | Símbolos CAD, huellas y modelos 3D |
---|---|---|
TSSOP (PW) | 16 | Ultra Librarian |
Pedidos y calidad
- RoHS
- REACH
- Marcado del dispositivo
- Acabado de plomo/material de la bola
- Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
- Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
- Contenido del material
- Resumen de calificaciones
- Monitoreo continuo de confiabilidad
- Lugar de fabricación
- Lugar de ensamblaje
Los productos recomendados pueden tener parámetros, módulos de evaluación o diseños de referencia relacionados con este producto de TI.
Soporte y capacitación
Foros de TI E2E™ con asistencia técnica de los ingenieros de TI
El contenido lo proporcionan “tal como está” TI y los colaboradores de la comunidad y no constituye especificaciones de TI. Consulte los términos de uso.
Si tiene preguntas sobre la calidad, el paquete o el pedido de productos de TI, consulte el soporte de TI.