REF70
Referencia de tensión de precisión ultra alta con bajo ruido y baja deriva
REF70
- Low noise enables precision measurements:
- 1/f Noise (0.1 Hz to 10 Hz): 0.23 ppm p-p
- 10 Hz to 1 kHz: 0.35 ppm rms
- Low temperature drift coefficient:
- 2 ppm/°C maximum (-40°C to 125°C)
- High accuracy: ±0.025% maximum
- Humidity resistant hermetic ceramic package (LCCC)
- Excellent long-term stability (1k hr): 35 ppm
- Low dropout: 400 mV
- Designed for a wide range of applications:
- Wide input voltage up to 18 V
- Output current: ±10 mA
- Voltage options: 1.25 V, 2.5 V, 3 V, 3.3 V, 4.096 V, 5 V
- Ultra-flexible solution:
- Stable with 1-µF to 100-µF output low-ESR capacitor
- High PSRR: 107 dB at 1 kHz
- Operating temperature range: −40°C to +125°C
The REF70 is a family of high precision series voltage references that offers the industry’s lowest noise (0.23 ppm p-p), very low temperature drift coefficient (2 ppm/°C), and high accuracy (±0.025%). The REF70 offers a high PSRR, low drop-out voltage and excellent load and line regulation to help meet strict transient requirements. This combination of precision and features is designed for applications such as test and measurement that demand a precise reference to be paired with precision, high-resolution data converters such as ADS8900B, ADS127L01 and DAC11001A, to achieve optimal performance in the signal chain. The REF70 is also designed for noise-sensitive medical applications such as ultrasound and X-ray to help enable low-noise measurements from the analog front end.
The REF70 family is available in VSSOP and LCCC package options. The LCCC (FKH) package is a hermetically sealed ceramic package that allows for low, long-term drift for applications that require a stable reference over a long time period without calibration.
The REF70 is specified for the wide temperature range of −40°C to +125°C. The wide temperature range enables operation across various industrial applications.
Documentación técnica
Tipo | Título | Fecha | ||
---|---|---|---|---|
* | Data sheet | REF70 2 ppm/°C Maximum Drift, 0.23 ppmp-p 1/f Noise, Precision Voltage Reference datasheet (Rev. G) | PDF | HTML | 27 sep 2023 |
White paper | Simplifying Power Architectures With Low-Noise Power Devices (Rev. A) | PDF | HTML | 04 nov 2024 | |
Technical article | Increasing X-Ray Image Resolution by Choosing Low-Noise Voltage References | PDF | HTML | 22 ene 2024 | |
Application note | Voltage Reference Selection and Design Tips For Data Converters (Rev. B) | PDF | HTML | 09 ene 2024 | |
White paper | Simplifying Power Conversion in High-Voltage Systems | PDF | HTML | 09 nov 2023 | |
E-book | Tips and tricks for designing with voltage references (Rev. A) | 07 may 2021 | ||
Technical article | How to design an accurate DC power supply | PDF | HTML | 08 abr 2021 | |
Application note | Long-Term Drift in Voltage References | PDF | HTML | 25 mar 2021 | |
Application note | Low-Noise Negative Reference Design with REF5025 | 01 dic 2019 | ||
White paper | Voltage reference selection basics white paper (Rev. A) | 23 oct 2018 |
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.
REF70EVM — Módulo de evaluación REF70 para referencia de tensión de precisión ultra alta con bajo ruido y baja
The REF70 evaluation module (EVM) is a platform for evaluating the REF70, which is an ultra-low-noise, high-precision voltage reference. REF70 offers an ultra-low 1/f noise of 0.23 ppmp-p during operation, while maintaining a very precise voltage output over temperature of 2 ppm/°C. REF70EVM (...)
ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.
Productos y hardware compatibles
Productos
Referencias de tensión en serie
PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI
TIDA-010945 — Diseño de referencia de cadena de señales de precisión para multímetros digitales
Encapsulado | Pines | Símbolos CAD, huellas y modelos 3D |
---|---|---|
LCCC (FKH) | 8 | Ultra Librarian |
VSSOP (DGK) | 8 | 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
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.
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