DDC2256A

ACTIVO

Convertidor analógico a digital de 256 canales con entrada de corriente

Se encuentra disponible una versión más nueva de este producto

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Misma funcionalidad con diferente configuración de pines que el dispositivo comparado
DDC3256 ACTIVO Convertidor analógico-digital de entrada de corriente de 256 canales y 20 kSPS Higher charge range higher speed single-supply operation

Detalles del producto

Number of input channels 256 Resolution (bps) 24 Features Computed Tomography (CT) Operating temperature range (°C) 0 to 70 Interface type LVDS/Serial Rating Catalog
Number of input channels 256 Resolution (bps) 24 Features Computed Tomography (CT) Operating temperature range (°C) 0 to 70 Interface type LVDS/Serial Rating Catalog
NFBGA (ZZF) 323 224 mm² 16 x 14
  • Single-Chip Solution to Directly Measure 256 Low-
    Level Currents Simultaneously
  • User Adjustable Full-Scale Range
  • Adjustable Speed with Integration Times as Low
    as 58.8 µs (17 KSPS per channel) with 24 bit
    Resolution
  • Power Dissipation as Low as 1.7mW/channel
  • Integral Linearity: ±0.025% of Reading ±1 ppm of
    Full Scale Reading (all channels active)
  • Low Noise
  • 24 bit ADC
  • No Charge Loss and Simultaneous Sampling
  • On-board Temperature Sensor
  • In-Package Bypass Capacitors and Reference
    Buffer to Reduce PCB Area and Design Complexity
  • Serial LVDS and CMOS Output Interface Option
  • Single-Chip Solution to Directly Measure 256 Low-
    Level Currents Simultaneously
  • User Adjustable Full-Scale Range
  • Adjustable Speed with Integration Times as Low
    as 58.8 µs (17 KSPS per channel) with 24 bit
    Resolution
  • Power Dissipation as Low as 1.7mW/channel
  • Integral Linearity: ±0.025% of Reading ±1 ppm of
    Full Scale Reading (all channels active)
  • Low Noise
  • 24 bit ADC
  • No Charge Loss and Simultaneous Sampling
  • On-board Temperature Sensor
  • In-Package Bypass Capacitors and Reference
    Buffer to Reduce PCB Area and Design Complexity
  • Serial LVDS and CMOS Output Interface Option

The DDC2256A is a 24-bit, 256-channel, current-input analog-to-digital (A/D) converter. It combines both current-to-voltage integration and A/D conversion so that 256 individual low-level current output devices, such as photodiodes, can be directly connected to its inputs and digitized in parallel (simultaneously).

For each of the inputs, the DDC2256A has one low noise/low power integrator designed to capture all the charge from the sensor. The integration time is adjustable from 58.8μs to 100 ms, allowing currents from fA to µA to be continuously measured with outstanding precision. The outputs of the integrators are digitized by sixteen 24-bit low power ADCs and all the resulting data is output over a single LVDS serial interface pair designed to minimize noise coupling in environments with high channel count.

The DDC2256A operates from ±2.5-V analog supply, 1.8-V analog supply (AVDD_18) and 1.8-V digital supply (DVDD). The device is specified from 0°C to 70°C operating temperature and available in a 14 × 16 mm2 323-ball 0.8 mm-pitch BGA. Finally, the on board reference buffer and bypass capacitors help minimize the external component requirements and further reduce board space.

To request a full data sheet or other design resources: request DDC2256A

The DDC2256A is a 24-bit, 256-channel, current-input analog-to-digital (A/D) converter. It combines both current-to-voltage integration and A/D conversion so that 256 individual low-level current output devices, such as photodiodes, can be directly connected to its inputs and digitized in parallel (simultaneously).

For each of the inputs, the DDC2256A has one low noise/low power integrator designed to capture all the charge from the sensor. The integration time is adjustable from 58.8μs to 100 ms, allowing currents from fA to µA to be continuously measured with outstanding precision. The outputs of the integrators are digitized by sixteen 24-bit low power ADCs and all the resulting data is output over a single LVDS serial interface pair designed to minimize noise coupling in environments with high channel count.

The DDC2256A operates from ±2.5-V analog supply, 1.8-V analog supply (AVDD_18) and 1.8-V digital supply (DVDD). The device is specified from 0°C to 70°C operating temperature and available in a 14 × 16 mm2 323-ball 0.8 mm-pitch BGA. Finally, the on board reference buffer and bypass capacitors help minimize the external component requirements and further reduce board space.

To request a full data sheet or other design resources: request DDC2256A

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Documentación técnica

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Tipo Título Fecha
* Data sheet DDC2256A 256-Channel, Current-Input Analog-To-Digital Converter datasheet (Rev. B) PDF | HTML 27 may 2016
EVM User's guide DDC2256AEVM Introduction User's Guide 01 abr 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

DDC2256AEVM — Módulo de evaluación DDC2256A de convertidor analógico a digital, entrada de corriente, 256 canales

El módulo de evaluación (EVM) DDC2256AEVM es un  kit de evaluación  para el DDC2256A, un convertidor analógico a digital (A/D) de 24 bits, entrada de corriente y 256 canales. El kit EVM, compuesto por una placa de dispositivo bajo prueba (DUT) (...)

Guía del usuario: PDF
Modelo de simulación

DDC2256 IBIS Model

SLAM287.ZIP (25 KB) - IBIS Model
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 (...)
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
NFBGA (ZZF) 323 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

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Soporte y capacitación

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