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ADS1118

現行

具 PGA、振盪器、VREF、溫度感測器和 SPI 的 16 位元、860-SPS、4 通道 ΔΣ ADC

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產品規格表

ADS1118

現行
產品規格表 立即訂購

產品詳細資料

Resolution (Bits) 16 Sample rate (max) (ksps) 0.86 Number of input channels 4 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode Internal Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Oscillator, PGA, Small Size, Temp Sensor Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 0.3 Analog supply voltage (min) (V) 2 Analog supply voltage (max) (V) 5.5 Digital supply (min) (V) 2 Digital supply (max) (V) 5.5
Resolution (Bits) 16 Sample rate (max) (ksps) 0.86 Number of input channels 4 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode Internal Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Oscillator, PGA, Small Size, Temp Sensor Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 0.3 Analog supply voltage (min) (V) 2 Analog supply voltage (max) (V) 5.5 Digital supply (min) (V) 2 Digital supply (max) (V) 5.5
VSSOP (DGS) 10 14.7 mm² 3 x 4.9 X2QFN (RUG) 10 3 mm² 1.5 x 2
  • Ultrasmall X2QFN Package:
    2 mm × 1.5 mm × 0.4 mm
  • Wide Supply Range: 2 V to 5.5 V
  • Low Current Consumption:
    • Continuous Mode: Only 150 µA
    • Single-Shot Mode: Automatic Power Down
  • Programmable Data Rate:
    8 SPS to 860 SPS
  • Single-Cycle Settling
  • Internal Low-Drift Voltage Reference
  • Internal Temperature Sensor:
    0.5°C (Maximum) Error: 0°C to 70°C
  • Internal Oscillator
  • Internal PGA
  • Four Single-Ended or Two Differential Inputs
  • Ultrasmall X2QFN Package:
    2 mm × 1.5 mm × 0.4 mm
  • Wide Supply Range: 2 V to 5.5 V
  • Low Current Consumption:
    • Continuous Mode: Only 150 µA
    • Single-Shot Mode: Automatic Power Down
  • Programmable Data Rate:
    8 SPS to 860 SPS
  • Single-Cycle Settling
  • Internal Low-Drift Voltage Reference
  • Internal Temperature Sensor:
    0.5°C (Maximum) Error: 0°C to 70°C
  • Internal Oscillator
  • Internal PGA
  • Four Single-Ended or Two Differential Inputs

The ADS1118 is a precision, low power, 16-bit analog-to-digital converter (ADC) that provides all features necessary to measure the most common sensor signals in an ultra-small, leadless X2QFN-10 package or a VSSOP-10 package. The ADS1118 integrates a programmable gain amplifier (PGA), voltage reference, oscillator and high-accuracy temperature sensor. These features, along with a wide power supply range from 2 V to 5.5 V, make the ADS1118 ideally suited for power- and space-constrained, sensor-measurement applications.

The ADS1118 can perform conversions at data rates up to 860 samples per second (SPS). The PGA offers input ranges from ±256 mV to ±6.144 V, allowing both large and small signals to be measured with high resolution. An input multiplexer (MUX) allows to measure two differential or four single-ended inputs. The high-accuracy temperature sensor can be used for system-level temperature monitoring or cold-junction compensation for thermocouples.

The ADS1118 operates either in continuous-conversion mode, or in a single-shot mode that automatically powers down after a conversion. Single-shot mode significantly reduces current consumption during idle periods. Data are transferred through a serial peripheral interface (SPI™). The ADS1118 is specified from –40°C to +125°C.

The ADS1118 is a precision, low power, 16-bit analog-to-digital converter (ADC) that provides all features necessary to measure the most common sensor signals in an ultra-small, leadless X2QFN-10 package or a VSSOP-10 package. The ADS1118 integrates a programmable gain amplifier (PGA), voltage reference, oscillator and high-accuracy temperature sensor. These features, along with a wide power supply range from 2 V to 5.5 V, make the ADS1118 ideally suited for power- and space-constrained, sensor-measurement applications.

The ADS1118 can perform conversions at data rates up to 860 samples per second (SPS). The PGA offers input ranges from ±256 mV to ±6.144 V, allowing both large and small signals to be measured with high resolution. An input multiplexer (MUX) allows to measure two differential or four single-ended inputs. The high-accuracy temperature sensor can be used for system-level temperature monitoring or cold-junction compensation for thermocouples.

The ADS1118 operates either in continuous-conversion mode, or in a single-shot mode that automatically powers down after a conversion. Single-shot mode significantly reduces current consumption during idle periods. Data are transferred through a serial peripheral interface (SPI™). The ADS1118 is specified from –40°C to +125°C.
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ADS1018 現行 具 PGA、振盪器、VREF、溫度感測器和 SPI 的 12 位元、3.3-kSPS、4 通道 ΔΣ ADC Higher sample rate (3.3 kSPS), lower resolution (12-bit)

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重要文件 類型 標題 格式選項 日期
* Data sheet ADS1118 Ultrasmall, Low-Power, SPI-Compatible, 16-Bit Analog-to-Digital Converter with Internal Reference and Temperature Sensor datasheet (Rev. F) PDF | HTML 2019年 9月 11日
Application note K-type thermocouple measurement circuit with precision ADC (Rev. A) PDF | HTML 2024年 9月 20日
Circuit design Precision measurement circuit with 8 different channels and SPI (Rev. A) PDF | HTML 2024年 9月 19日
Circuit design Two-channel, K-type thermocouple measurement circuit with internal temperature (Rev. A) PDF | HTML 2024年 9月 18日
Application note Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs (Rev. A) PDF | HTML 2024年 3月 18日
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 2023年 12月 6日
Application note A Basic Guide to Thermocouple Measurements (Rev. A) PDF | HTML 2023年 3月 29日
Application note Digital Filter Types in Delta-Sigma ADCs (Rev. A) PDF | HTML 2023年 3月 29日
E-book Fundamentals of Precision ADC Noise Analysis (Rev. A) 2020年 6月 19日
User guide 430BOOST-ADS1118 BoosterPack User's Guide (Rev. A) 2017年 7月 20日
Analog Design Journal How delta-sigma ADCs work, Part 1 (Rev. A) 2016年 9月 19日
E-book Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs 2015年 3月 19日
Analog Design Journal How delta-sigma ADCs work, Part 2 2011年 11月 9日

設計與開發

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開發板

ADS1118EVM — ADS1118 16 位元、860-SPS、4 通道、Delta-Sigma ADC 評估模組

The ADS1118 evaluation module (EVM) is a complete solution for evaluation of the ADS1118 ultra-small, low-power, precision 16-bit analog-to-digital converter (ADC). Power and I/O are provided via USB connection and a simple software interface. Analog inputs can be connected to a terminal block (...)

使用指南: PDF
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韌體

SBAC121 — 430BOOST-ADS1118 Firmware

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支援軟體

ADS1118-C-EXAMPLE-CODE — ADS1118 example C code

Expedite your embedded design using this example C code for the ADS1118
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SBAC117 — ADS1118EVM Source Code

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模擬型號

ADS1118 IBIS Model

SBAM083.ZIP (70 KB) - IBIS Model
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計算工具

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

The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)

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模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI 是有助於評估類比電路功能的設計和模擬環境。這款全功能設計和模擬套件使用 Cadence® 的類比分析引擎。PSpice for TI 包括業界最大的模型庫之一，涵蓋我們的類比和電源產品組合，以及特定類比行為模型，且使用無需支付費用。

PSpice for TI 設計和模擬環境可讓您使用其內建函式庫來模擬複雜的混合訊號設計。在進行佈局和製造之前，建立完整的終端設備設計和解決方案原型，進而縮短上市時間並降低開發成本。 

在 PSpice for TI 設計與模擬工具中，您可以搜尋 TI (...)
要求
模擬工具

TINA-TI — 基於 SPICE 的類比模擬程式

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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參考設計

TIPD109 — 精度 <1°C 的簡易熱電偶量測解決方案參考設計

This thermocouple measurement verified design provides a very simple and accurate method way to implement thermocouple measurement. This design outlines the necessary anti-aliasing filters and biasing resistors to provide sensor diagnostics. This example also provides a novel way of accomplishing (...)
使用指南: PDF
電路圖: PDF
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VSSOP (DGS) 10 Ultra Librarian
X2QFN (RUG) 10 Ultra Librarian
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