ADS1259
ADC delta-sigma de 24 bits, 14,4 kSPS y 1 canal con referencia de tensión de baja deriva para la aut
ADS1259
- 24 Bits, No Missing Codes
- Output Data Rates From 10 To 14kSPS
- High Performance:
- INL: 0.4ppm
- Reference Drift: 2ppm/°C
- Gain Drift: 0.5ppm/°C
- Offset Drift: 0.05µV/°C
- Noise: 0.7µVRMS at 60SPS
- Simultaneous 50/60Hz Rejection at 10SPS
- Single-Cycle Settling
- Internal Oscillator
- Out-of-Range Detection
- Readback Data Integrity by Checksum and Redundant Data Read Capability
- SPI-Compatible Interface
- Analog Supply: +5V or ±2.5V
- Digital Supply: +2.7V to +5V
- Low Power: 13mW
- APPLICATIONS
- Industrial Process Control
- Scientific Instrumentation
- Test and Measurement
All other trademarks are the property of their respective owners
The ADS1259 is a high-linearity, low-drift, 24-bit, analog-to-digital converter (ADC) designed for the needs of industrial process control, precision instrumentation, and other exacting applications. Combined with a signal amplifier (such as the PGA280), a high-resolution, high-accuracy measurement system is formed that is capable of digitizing a wide range of signals.
The converter uses a fourth-order, inherently stable, delta-sigma (ΔΣ) modulator that provides outstanding noise and linearity performance. The data rates are programmable up to 14kSPS including 10SPS, 50SPS, and 60SPS that provide excellent normal mode line-cycle rejection. The digital filter can be programmed for a fast settling mode where the conversions settle in a single cycle, or programmed for a high line-cycle rejection mode. A fast responding input over-range detector flags the conversion data if an input over-range should occur.
The ADS1259 also provides an integrated low-noise, very low drift 2.5V reference. The on-chip oscillator, an external crystal, or an external clock can by used as the ADC clock source.
Data and control communication are handled over a 4MHz, SPI-compatible interface capable of operating with a minimum of three wires. Data integrity is augmented by data bytes checksum and redundant data read capability. Conversions are synchronized either by command or by pin.
Dissipating only 13mW in operation, the ADS1259 can be powered down, dissipating less than 25µW. The ADS1259 is offered in a TSSOP-20 package and is fully specified from –40°C to +105°C.
Documentación técnica
Tipo | Título | Fecha | ||
---|---|---|---|---|
* | Data sheet | Industrial, 14kSPS, 24-Bit Analog-to-Digital Converter with Low-Drift Reference datasheet (Rev. D) | 26 ago 2011 | |
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 | Communication Methods for Data Integrity Using Delta-Sigma Data Converters (Rev. A) | PDF | HTML | 23 ago 2021 | |
E-book | Fundamentals of Precision ADC Noise Analysis | 19 jun 2020 | ||
Analog Design Journal | Enabling precision delta‐sigma ADCs in functional safety applications | 19 mar 2020 | ||
EVM User's guide | ADS1259EVM and ADS1259EVM-PDK User's Guide (Rev. B) | 14 may 2016 | ||
E-book | Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs | 19 mar 2015 |
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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Productos y hardware compatibles
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Receptores
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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) | 20 | 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
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Soporte y capacitación
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