REF6050
Referencia de tensión de alta precisión de 5 V y 5 ppm/°C con búfer integrado y pin de activación
REF6050
- Excellent Temperature Drift Performance
- 5 ppm/°C (max) from –40°C to +125°C
- Extremely Low Noise
- Total Noise: 5 µVRMS With 47-µF Capacitor
- 1/f Noise (0.1 Hz to 10 Hz): 3 µVPP/V
- Integrated ADC Drive Buffer
- Low Output Impedance: < 50 mΩ (0-200 kHz)
- First Sample Precise to 18 Bits With ADS8881
- Enables Burst-Mode DAQ Systems
- Low Supply Current: 820 µA
- Low Shutdown Current: 1 µA
- High Initial Accuracy: ±0.05%
- Very-Low Noise and Distortion
- Output Current Drive: ±4 mA
- Programmable Short-Circuit Current
- Verified to Drive REF Pin of ADS88xx family of SAR ADCs and ADS127xx family of Wideband ΔΣ ADCs
The REF6000 family of voltage references have an integrated low output impedance buffer that enable the user to directly drive the REF pin of precision data converters, while preserving linearity, distortion, and noise performance. Most precision SAR and Delta-Sigma ADCs, switch binary-weighted capacitors onto the REF pin during the conversion process. In order to support this dynamic load the output of the voltage reference must be buffered with a low-output impedance (high-bandwidth) buffer. The REF6000 family devices are well suited, but not limited, to drive the REF pin of the ADS88xx family of SAR ADCs, and ADS127xx family of delta-sigma ADCs, as well as other digital-to-analog converters (DACs).
The REF6000 family of voltage references are able to maintain an output voltage within 1LSB (18-bit) with minimal droop, even during the first conversion while driving the REF pin of the ADS8881. This feature is useful in burst-mode, event-triggered, equivalent-time sampling, and variable-sampling-rate data-acquisition systems. The REF60xx variants of REF6000 family specify a maximum temperature drift of just 5 ppm/°C and initial accuracy of 0.05% for both the voltage reference and the low output impedance buffer combined. For various temperature drift options in REF6000 family, see the Device Comparison Table.
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Documentación técnica
Tipo | Título | Fecha | ||
---|---|---|---|---|
* | Data sheet | REF60xx High-Precision Voltage Reference With Integrated ADC Drive Buffer datasheet (Rev. B) | PDF | HTML | 29 ago 2016 |
Circuit design | DAC force and sense reference drive circuit (Rev. A) | PDF | HTML | 20 sep 2024 | |
Circuit design | Circuit to drive a switched capacitor reference input for high-precision devices (Rev. A) | PDF | HTML | 19 sep 2024 | |
E-book | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | 28 jun 2019 | ||
White paper | Voltage-reference impact on total harmonic distortion | 01 ago 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.
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Encapsulado | Pines | Símbolos CAD, huellas y modelos 3D |
---|---|---|
VSSOP (DGK) | 8 | Ultra Librarian |
Pedidos y calidad
- RoHS
- REACH
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- 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
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- Monitoreo continuo de confiabilidad
- Lugar de fabricación
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