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DAC161P997
DAC de 16 bits de un solo cable para 4-20mA bucles
Hoja de datos
DAC161P997
- 16-Bit Linearity
- Single-Wire Interface (SWIF), with Handshake
- Digital Data Transmission (No Loss of Fidelity)
- Pin Programmable Power-Up Condition
- Self Adjusting to Input Data Rate
- Loop Error Detection and Rreporting
- Programmable Output Current Error Level
- No External Precision Components
- Simple Interface to HART Modulator
- Small Package: WQFN-16 (4 × 4 mm, 0.5 mm Pitch)
- Key
- Output Current TempCo: 29 ppmFS/°C (Max)
- Long-Term Output Current Drift: 90 ppmFS (Typ)
- INL: 3.3/–2.1 µA(Max)
- Total Supply Current: 190 µA (Max)
Application
- Two-Wire, 4-20 mA Current Loop Transmitter
- Industrial Process Control
- Actuator Control
- Factory Automation
- Building Automation
- Precision Instruments
- Data Acquisition Systems
- Test Systems
All trademarks are the property of their respective owners.
The DAC161P997 is a 16-bit ΣΔ digital-to-analog converter (DAC) for transmitting an analog output current over an industry standard 4-20 mA current loop. It offers 16-bit accuracy with a low output current temperature coefficient (29 ppm/°C) and excellent long-term output current drift (90 ppmFS) while consuming less than 190 µA.
The data link to the DAC161P997 is a Single Wire Interface (SWIF) which allows sensor data to be transferred in digital format over an isolation boundary using a single isolation component. The DAC161P997’s digital input is compatible with standard isolation transformers and opto-couplers. Error detection and handshaking features within the SWIF protocol ensure error free communication across the isolation boundary. For applications where isolation is not required, the DAC161P997 interfaces directly to a microcontroller.
The loop drive of the DAC161P997 interfaces to a HART (Highway Addressable Remote Transducer) modulator, allowing injection of FSK modulated digital data into the 4-20 mA current loop. This combination of specifications and features makes the DAC161P997 ideal for 2- and 4-wire industrial transmitters.
The DAC161P997 is available in a 16-lead 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 4 | Tipo | Título | Fecha | ||
|---|---|---|---|---|
| * | Data sheet | DAC161P997 Single-Wire 16-bit DAC for 4- to 20-mA Loops datasheet (Rev. G) | PDF | HTML | 24 dic 2014 |
| Application note | A Basic Guide to the HART Protocol | PDF | HTML | 09 nov 2023 | |
| Application note | AN-2245 MSP430 Interface to DAC161P997 Code Library (Rev. A) | 22 abr 2013 | ||
| EVM User's guide | DAC161P997 Evaluation Board User Guide | 27 ene 2012 |
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.
Soporte de software
SNAC028 — DAC161P997EVAL Design Package
Productos y hardware compatibles
Productos
DAC de precisión (≤ 10 MSPS)
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-00189 — Diseño de referencia del transmisor del termopar eléctrico de circuito aislado
The Isolated Loop powered Thermocouple Transmitter reference design is a system solution providing precision K-type thermocouple measurements for 4 to 20-mA isolated current-loop applications. This design is intended as an evaluation module for users to fast prototype and develop end-products for (...)
| 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
Foros de TI E2E™ con asistencia técnica de los ingenieros de TI
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