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ADS9815

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ADS9815

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产品详情

Resolution (Bits) 18 Sample rate (max) (ksps) 1000 Number of input channels 8 Interface type Enhanced SPI, Serial CMOS Architecture SAR Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 12 Input voltage range (min) (V) -12 Features Over-Voltage Protection, PGA Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 220 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 Digital supply (min) (V) 1.75 Digital supply (max) (V) 1.85
Resolution (Bits) 18 Sample rate (max) (ksps) 1000 Number of input channels 8 Interface type Enhanced SPI, Serial CMOS Architecture SAR Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 12 Input voltage range (min) (V) -12 Features Over-Voltage Protection, PGA Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 220 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 Digital supply (min) (V) 1.75 Digital supply (max) (V) 1.85
VQFN (RSH) 56 49 mm² (7 mm × 7 mm)
  • 8-channel, 18-bit ADC with analog front-end:
    • Dual, simultaneous sampling: 4 × 1 channels
    • Constant 1MΩ input impedance front-end
  • Programmable analog input ranges:
    • ±12V, ±10V, ±7V, ±5V, ±3.5V, and ±2.5V
    • Single-ended and differential inputs
    • ±12V common-mode voltage range
    • Input overvoltage protection: Up to ±18V
  • User-selectable analog input bandwidth:
    • 21kHz and 400kHz
  • Integrated low-drift precision references
    • ADC reference: 4.096V
    • 2.5V reference output for external circuits
  • Excellent AC and DC performance at full-throughput:
    • DNL: ±0.5LSB, INL: ±0.8LSB
    • SNR: 92dB, THD: –113dB
  • Power supply:
    • Analog and digital: 5V and 1.8V
    • Digital interface: 1.2V to 1.8V
  • Temperature range: –40°C to +125°C
  • 8-channel, 18-bit ADC with analog front-end:
    • Dual, simultaneous sampling: 4 × 1 channels
    • Constant 1MΩ input impedance front-end
  • Programmable analog input ranges:
    • ±12V, ±10V, ±7V, ±5V, ±3.5V, and ±2.5V
    • Single-ended and differential inputs
    • ±12V common-mode voltage range
    • Input overvoltage protection: Up to ±18V
  • User-selectable analog input bandwidth:
    • 21kHz and 400kHz
  • Integrated low-drift precision references
    • ADC reference: 4.096V
    • 2.5V reference output for external circuits
  • Excellent AC and DC performance at full-throughput:
    • DNL: ±0.5LSB, INL: ±0.8LSB
    • SNR: 92dB, THD: –113dB
  • Power supply:
    • Analog and digital: 5V and 1.8V
    • Digital interface: 1.2V to 1.8V
  • Temperature range: –40°C to +125°C

The ADS981x is an 8-channel data acquisition (DAQ) system based on a dual, simultaneous-sampling, 18-bit successive approximation register (SAR) analog-to-digital converter (ADC). The ADS981x features a complete analog front-end for each channel with an input clamp protection circuit, 1MΩ input impedance, and a programmable gain amplifier (PGA) with user-selectable bandwidth options. The high input impedance allows direct connection with sensors and transformers, thus eliminating the need for external driver circuits. The ADS981x can be configured to accept unipolar or bipolar inputs with up to a ±12V common-mode voltage.

The device also features a 4.096V reference for the ADC and a 2.5V reference output for use with external circuits. A digital interface supporting 1.2V to 1.8V operation enables the ADS981x to be used without external voltage level translators.

The ADS981x is an 8-channel data acquisition (DAQ) system based on a dual, simultaneous-sampling, 18-bit successive approximation register (SAR) analog-to-digital converter (ADC). The ADS981x features a complete analog front-end for each channel with an input clamp protection circuit, 1MΩ input impedance, and a programmable gain amplifier (PGA) with user-selectable bandwidth options. The high input impedance allows direct connection with sensors and transformers, thus eliminating the need for external driver circuits. The ADS981x can be configured to accept unipolar or bipolar inputs with up to a ±12V common-mode voltage.

The device also features a 4.096V reference for the ADC and a 2.5V reference output for use with external circuits. A digital interface supporting 1.2V to 1.8V operation enables the ADS981x to be used without external voltage level translators.
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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 ADS981x 18-Bit, 2-MSPS/Ch, Dual, Simultaneous-Sampling ADC With Integrated Analog Front-End 数据表 (Rev. C) PDF | HTML 2026-9-29
应用简报 半导体自动测试设备 (ATE) 测量卡 PDF | HTML 英语版 PDF | HTML 2025-5-12
应用简报 用于测量参数测量单元 (PMU) 模拟输出的精密 ADC (Rev. B) PDF | HTML 英语版 (Rev.B) PDF | HTML 2025-1-24
技术文章 如何监测自动化测试仪和编码器 PDF | HTML 英语版 PDF | HTML 2024-5-8
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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）。

评估板

ADS9817EVM — ADS9817 评估模块

ADS9817 评估模块 (EVM) 是一个用于评估 ADS9817 性能的平台，ADS9817 是一款具有集成模拟前端和 ADC 基准的 8 通道、18 位、2MSPS/通道 SAR ADC。ADS9817EVM 包含标准 FMC 连接器，可连接标准 FPGA 开发板。借助提供的与 TSWDC155EVM（单独出售）配合使用的计算机软件，用户能够通过通用串行总线 (USB) 与 ADC 进行通信，以及采集数据和执行数据分析。

用户指南: PDF | HTML
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支持软件

ADS98XX-FPGA-EXAMPLE-CODE — ADS98xx FPGA interface example code

Expedite your ADS98xx digital design with this Verilog module from Texas Instruments
支持的产品和硬件
仿真模型

ADS98xx IBIS Model

SBAM514.ZIP (41 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
VQFN (RSH) 56 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

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