Produktdetails

Resolution (Bits) 24 Sample rate (max) (ksps) 1000 Number of input channels 16 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 20 Input voltage range (min) (V) 0 Features 50/60 Hz Rejection, Daisy-Chainable, GPIO, Oscillator, Small Size, Temp. Sensor Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 24 Analog supply voltage (min) (V) 3 Analog supply voltage (max) (V) 5.25 Digital supply (min) (V) 1.65 Digital supply (max) (V) 5.5
Resolution (Bits) 24 Sample rate (max) (ksps) 1000 Number of input channels 16 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 20 Input voltage range (min) (V) 0 Features 50/60 Hz Rejection, Daisy-Chainable, GPIO, Oscillator, Small Size, Temp. Sensor Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 24 Analog supply voltage (min) (V) 3 Analog supply voltage (max) (V) 5.25 Digital supply (min) (V) 1.65 Digital supply (max) (V) 5.5
VQFN (RHB) 36 25 mm² 5 x 5
  • Programmable data rate up to 1.067MSPS
  • High impedance voltage divider with integrated precision matched resistors
  • Analog multiplexer with 17 independently selectable inputs:
    • Up to 8 fully differential inputs
    • Up to 16 single ended inputs
  • Rail-to-rail analog input buffer and reference buffer
  • Internal voltage reference, selectable output 2.5V or 4.096V
  • Fault detection and monitor circuits
  • General-Purpose I/Os
  • Internal Oscillator: 25.6MHz, 1% Accuracy
  • Channel auto-sequencer and FIFO buffer
  • Simultaneous 50Hz and 60Hz rejection at ≤ 25 SPS with low-latency digital filter
  • Power-scalable architecture with four speed modes
  • Programmable data rate up to 1.067MSPS
  • High impedance voltage divider with integrated precision matched resistors
  • Analog multiplexer with 17 independently selectable inputs:
    • Up to 8 fully differential inputs
    • Up to 16 single ended inputs
  • Rail-to-rail analog input buffer and reference buffer
  • Internal voltage reference, selectable output 2.5V or 4.096V
  • Fault detection and monitor circuits
  • General-Purpose I/Os
  • Internal Oscillator: 25.6MHz, 1% Accuracy
  • Channel auto-sequencer and FIFO buffer
  • Simultaneous 50Hz and 60Hz rejection at ≤ 25 SPS with low-latency digital filter
  • Power-scalable architecture with four speed modes

The ADS125H18 is a high voltage input, multiplexed 8/16-Channel, 24 bit, delta-sigma (ΔΣ), analog-to-digital converter (ADC) with data rates up to 1MSPS and is configurable to accept up to 8 fully differential analog inputs or up to 16 single-ended analog inputs. Each input comprises a high-impedance voltage divider with integrated precision matched resistors to scale down the input voltage to the input range of the ADC. The device offers an excellent combination of ac performance and dc precision with low power consumption.

The ADS125H18 is equipped with a channel auto-sequencer and a FIFO (first-in, first-out) buffer. The power-scalable architecture provides four speed modes to optimize data rate, resolution, and power consumption.

The small 5mm × 5mm VQFN package is designed for limited space applications. The device is fully specified for operation over the –40°C to +125°C temperature range.

The ADS125H18 is a high voltage input, multiplexed 8/16-Channel, 24 bit, delta-sigma (ΔΣ), analog-to-digital converter (ADC) with data rates up to 1MSPS and is configurable to accept up to 8 fully differential analog inputs or up to 16 single-ended analog inputs. Each input comprises a high-impedance voltage divider with integrated precision matched resistors to scale down the input voltage to the input range of the ADC. The device offers an excellent combination of ac performance and dc precision with low power consumption.

The ADS125H18 is equipped with a channel auto-sequencer and a FIFO (first-in, first-out) buffer. The power-scalable architecture provides four speed modes to optimize data rate, resolution, and power consumption.

The small 5mm × 5mm VQFN package is designed for limited space applications. The device is fully specified for operation over the –40°C to +125°C temperature range.

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Technische Dokumentation

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* Data sheet ADS125H18 8/16-Channel, 1MSPS , 24 -Bit, Delta-Sigma ADC datasheet PDF | HTML 16 Dez 2025
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Application note Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs (Rev. A) PDF | HTML 18 Mär 2024
Application note Digital Filter Types in Delta-Sigma ADCs (Rev. A) PDF | HTML 29 Mär 2023
Product overview PLC Analog Input Front-End Architectures PDF | HTML 31 Jul 2022
E-book Fundamentals of Precision ADC Noise Analysis (Rev. A) 19 Jun 2020

Design und Entwicklung

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Evaluierungsplatine

ADS125H18EVM-PDK — ADS125H18 – Evaluierungsmodul

Das Evaluierungsmodul (EVM) ADS125H18 ist eine Plattform zur Evaluierung der Leistung des ADS125H18, eines 24-Bit-Analog-Digital-Wandlers (ADC) mit acht Kanälen und Multiplex-Delta-Sigma (ΔΣ), der zur direkten Messung von Eingängen auf Prozessebene (10 V und 4 mA bis 20 mA) entwickelt wurde. Der (...)
Benutzerhandbuch: PDF | HTML
Support-Software

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