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ADS1672

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高速高分辨率 625kSPS 24 位 Σ-Δ ADC

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open-in-new 比较替代产品
功能与比较器件相同但引脚有所不同。
ADS127L21 正在供货 具有可编程 IIR 和 FIR 滤波器的 24 位、512kSPS 宽带宽 Δ-Σ ADC Higher sample rate (1.36MSPS), wider bandwidth

ADS1672

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产品详情

Resolution (Bits) 24 Sample rate (max) (ksps) 625 Number of input channels 1 Interface type Serial Architecture Delta-Sigma Input type Differential Rating Catalog Reference mode External Input voltage range (max) (V) 3.25 Input voltage range (min) (V) 0 Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 350 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 SNR (dB) 103 Digital supply (min) (V) 2.7 Digital supply (max) (V) 3.3
Resolution (Bits) 24 Sample rate (max) (ksps) 625 Number of input channels 1 Interface type Serial Architecture Delta-Sigma Input type Differential Rating Catalog Reference mode External Input voltage range (max) (V) 3.25 Input voltage range (min) (V) 0 Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 350 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 SNR (dB) 103 Digital supply (min) (V) 2.7 Digital supply (max) (V) 3.3
TQFP (PAG) 64 144 mm² (12 mm × 12 mm)
  • AC Performance:
    107dB of Dynamic Range at 625kSPS
    115.5dB of Dynamic Range at 78kSPS
    –113dB THD
  • DC Accuracy:
    3ppm INL
    2µ/°C Offset Drift
    2ppm/°C Gain Drift
  • Programmable Digital Filter with User-Selectable Path:
    • Low-Latency: Completely settles in 5.5µs
    • Wide-Bandwidth: 305kHz BW with flat passband
  • Flexible Read-Only Serial Interface:
    • Standard CMOS
    • Serialized LVDS
  • Easy Conversion Control with START Pin
  • Out-of-Range Detection
  • Supply: Analog +5V, Digital +3V
  • Power: 350mW
  • APPLICATIONS
    • Automated Test Equipment
    • Vibration Analysis
    • Sonar
    • Test and Measurement

All other trademarks are the property of their respective owners
  • AC Performance:
    107dB of Dynamic Range at 625kSPS
    115.5dB of Dynamic Range at 78kSPS
    –113dB THD
  • DC Accuracy:
    3ppm INL
    2µ/°C Offset Drift
    2ppm/°C Gain Drift
  • Programmable Digital Filter with User-Selectable Path:
    • Low-Latency: Completely settles in 5.5µs
    • Wide-Bandwidth: 305kHz BW with flat passband
  • Flexible Read-Only Serial Interface:
    • Standard CMOS
    • Serialized LVDS
  • Easy Conversion Control with START Pin
  • Out-of-Range Detection
  • Supply: Analog +5V, Digital +3V
  • Power: 350mW
  • APPLICATIONS
    • Automated Test Equipment
    • Vibration Analysis
    • Sonar
    • Test and Measurement

All other trademarks are the property of their respective owners

The ADS1672 is a high-speed, high-precision analog-to-digital converter (ADC). Using an advanced delta-sigma () architecture, it operates at speeds up to 625kSPS with outstanding ac performance and dc accuracy.

The ADS1672 ADC is comprised of a low-drift, chopper-stabilized modulator with out-of-range detection and a dual-path programmable digital filter. The dual filter path allows the user to select between two post-processing filters: low-latency or wide-bandwidth. The low-latency filter settles quickly in one cycle, for applications with large instantaneous changes, such as a multiplexer. The wide-bandwidth path provides an optimized frequency response for ac measurements with a passband ripple of less than 0.001dB, stop band attenuation of 86dB, and a bandwidth of 305kHz.

The ADS1672 is controlled through I/O pins—there are no registers to program. A dedicated START pin allows for direct control of conversions: toggle the START pin to begin a conversion, and then retrieve the output data. The flexible serial interface supports data readback with either standard CMOS and LVDS logic levels, allowing the ADS1672 to directly connect to a wide range of microcontrollers, digital signal processors (DSPs), or field-programmable grid arrays (FPGAs).

The ADS1672 operates from an analog supply of 5V and digital supply of 3V, and dissipates 350mW of power. When not in use, the PDWN pin can be used to power down all device circuitry. The device is fully specified over the industrial temperature range and is offered in a TQFP-64 package.

The ADS1672 is a high-speed, high-precision analog-to-digital converter (ADC). Using an advanced delta-sigma () architecture, it operates at speeds up to 625kSPS with outstanding ac performance and dc accuracy.

The ADS1672 ADC is comprised of a low-drift, chopper-stabilized modulator with out-of-range detection and a dual-path programmable digital filter. The dual filter path allows the user to select between two post-processing filters: low-latency or wide-bandwidth. The low-latency filter settles quickly in one cycle, for applications with large instantaneous changes, such as a multiplexer. The wide-bandwidth path provides an optimized frequency response for ac measurements with a passband ripple of less than 0.001dB, stop band attenuation of 86dB, and a bandwidth of 305kHz.

The ADS1672 is controlled through I/O pins—there are no registers to program. A dedicated START pin allows for direct control of conversions: toggle the START pin to begin a conversion, and then retrieve the output data. The flexible serial interface supports data readback with either standard CMOS and LVDS logic levels, allowing the ADS1672 to directly connect to a wide range of microcontrollers, digital signal processors (DSPs), or field-programmable grid arrays (FPGAs).

The ADS1672 operates from an analog supply of 5V and digital supply of 3V, and dissipates 350mW of power. When not in use, the PDWN pin can be used to power down all device circuitry. The device is fully specified over the industrial temperature range and is offered in a TQFP-64 package.
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技术文档

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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 625kSPS, 24-Bit Analog-to-Digital Converter 数据表 (Rev. D) 2010-7-8
应用手册 Δ-Σ ADC 中的数字滤波器类型 (Rev. A) PDF | HTML 英语版 (Rev.A) PDF | HTML 2023-4-13
电子书 Fundamentals of Precision ADC Noise Analysis (Rev. A) 2020-6-19
白皮书 Voltage-reference impact on total harmonic distortion 2016-8-1
电子书 Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs 2015-3-19
应用手册 Using the ADS1672 in Digital Filter Bypass Mode 2008-12-6

设计与开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

仿真模型

ADS1672 IBIS Model (Rev. A)

SBAC066 (62 KB) - IBIS 模型
支持的产品和硬件
计算工具

ANALOG-ENGINEER-CALC — PC software analog engineer's calculator

模拟工程师计算器旨在加快模拟电路设计工程师经常运用的许多重复性计算。该基于 PC 的工具提供图形界面，其中显示各种常见计算列表，从使用反馈电阻器设置运算放大器增益到选择合适的电路设计元件，以稳定模数转换器 (ADC) 驱动器缓冲器电路。

除了可用作独立工具之外，该计算器还能很好地与模拟工程师口袋参考中所述的概念配合使用。

支持的产品和硬件
设计工具

ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.

The ADC-TO-VREF-SELECT tool enables the pairing of TI analog-to-digital converters (ADCs) and series voltage references. Users can select an ADC device and the desired reference voltage, and the tool will list up to two voltage reference recommendations.
支持的产品和硬件
封装 引脚 CAD 符号、封装和 3D 模型
TQFP (PAG) 64 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

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