Soporte de software
DAC161S997
DAC de precisión de 16 bits con referencia interna y unidad de bucle de corriente de 4mA a 20mA
Hoja de datos
DAC161S997
- 16-Bit Resolution
- Very-Low Supply Current of 100 µA
- 5 ppmFS/°C Gain Error
- Pin-Programmable Power-Up Condition
- Loop-Error Detection and Reporting
- Programmable Output-Current Error Levels
- Simple HART Modulator Interfacing
- Highly Integrated Feature Set in Small
Footprint WQFN-16 (4- × 4-mm,
0.5-mm Pitch)
The DAC161S997 is a very low power 16-bit ΣΔ digital-to-analog converter (DAC) for transmitting an analog output current over an industry standard 4-20 mA current loop. The DAC161S997 has a simple 4-wire SPI for data transfer and configuration of the DAC functions. To reduce power and component count in compact loop-powered applications, the DAC161S997 contains an internal ultra-low power voltage reference and an internal oscillator. The low power consumption of the DAC161S997 results in additional current being available for the remaining portion of the system. The loop drive of the DAC161S997 interfaces to a Highway Addressable Remote Transducer (HART) modulator, allowing injection of FSK modulated digital data into the 4-20 mA current loop. This combination of specifications and features makes the DAC161S997 ideal for 2- and 4-wire industrial transmitters. The DAC161S997 is available in a 16-pin 4-mm × 4-mm WQFN package and is specified over the extended industrial temperature range of –40°C to +105°C.
Documentación técnica
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Ver todo 7 | Tipo | Título | Fecha | ||
|---|---|---|---|---|
| * | Data sheet | DAC161S997 16-Bit SPI-Programmable DAC for 4-20 mA Loops datasheet (Rev. A) | PDF | HTML | 29 dic 2014 |
| Circuit design | Loop-Powered 4mA to 20mA Transmitter Circuit (Rev. A) | PDF | HTML | 19 sep 2024 | |
| Analog Design Journal | Designing 4mA to 20mA loop-powered transmitters | PDF | HTML | 28 may 2024 | |
| Analog Design Journal | How to use an ideal diode controller as a scalable input bypass switch in solar applications | PDF | HTML | 28 may 2024 | |
| Application note | A Basic Guide to the HART Protocol | PDF | HTML | 09 nov 2023 | |
| Technical article | Powering smart sensor transmitters in industrial applications | PDF | HTML | 02 may 2016 | |
| EVM User's guide | DAC161S997EVM User's Guide (Rev. A) | 29 feb 2016 |
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.
Placa de evaluación
DAC161S997EVM — Módulo de evaluación DAC161S997 para DAC de 16 bits con referencia interna y unidad de bucle de corr
DAC161S997EVM helps evaluate the DAC161S997, 4-20mA Loop driver with SPI interface. This board is designed as a 2-Wire loop-powered transmitter. It has a MSP430G2553 MCU which comes preloaded with a firmware which communicates with PC Software and can read/write DAC register according to the user (...)
Guía del usuario: PDF
Modelo de simulación
DAC161P997 TINA-TI Reference Design
SNAM145.TSC (306 KB) - TINA-TI Reference Design
Modelo de simulación
DAC161P997 TINA-TI Transient Spice Model
SNAM146.ZIP (19 KB) - TINA-TI Spice Model
Herramienta de cálculo
ANALOG-ENGINEER-CALC — Calculadora para ingenieros analógicos
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 (...)
Herramienta de simulación
PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Herramienta de simulación
TINA-TI — Programa de simulación analógica basado en SPICE
TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
Guía del usuario: PDF
Diseños de referencia
TIDA-00666 — Diseño de referencia del transmisor de campo con conectividad BLE con circuito de corriente de 4 mA
TIDA-00666 enables Bluetooth Low Energy communication powered from a 2-wire 4- to 20-mA loop. For industrial process control instruments, analog 4- to 20-mA current loops are commonly used for analog signaling, with 4 mA representing the lowest end of the range and 20 mA the highest. This (...)
Diseños de referencia
TIDA-00095 — Transmisor de temperatura RTD para sistemas de circuito de corriente de 2 cables, de 4 a 20 mA
This comprehensive design provides a complete system that measures and processes temperature signals inputs from 2-wire, 3-wire, and 4-wire resistance temperature detectors (RTDs) and outputs a 4 to 20-mA current-loop signal corresponding to the temperature processed from the RTD inputs. It (...)
Diseños de referencia
TIDA-00483 — Diseño de referencia de medición del sensor doble con circuito de corriente único con modulación FSK
The TIDA-00483 reference design demonstrates a 4-20mA current loop subsystem capable of measuring the surrounding environment and communicating the temperature, humidity, and ambient light over the loop. The small footprint of the design contains all sensors, filters, and control circuitry to (...)
Diseños de referencia
TIDA-00648 — Diseño de referencia del transmisor de circuito de corriente de 4 mA a 20 mA
TIDA-00648 is an industry standard 4-20 mA current-loop transmitter. It allows injection of FSK-modulated digital data into the 4-20 mA current loop for HART communication. External protection circuitry is deployed in-place for compliance with regulatory IEC61000-4 standards such as EFT, ESD and (...)
Diseños de referencia
TIDA-00165 — Diseño de referencia del transmisor de temperatura RTD de circuito de corriente de 2 cables, de 4 mA
This is a reference design for a robust, low power, precise and long-term stable 2-wire loop powered 4 to 20mA current output temperature transmitter. It uses RTD temperature sensor with 4 to 20mA current loop transmitter. It also explains sensor signal conditioning, ratiometric measurement (...)
| Encapsulado | Pines | Símbolos CAD, huellas y modelos 3D |
|---|---|---|
| WQFN (RGH) | 16 | Ultra Librarian |
Pedidos y calidad
Información incluida:
- 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
Información incluida:
- 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
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