ADS8584SIPM

Updated: 2026-09-10

Overview

The ADS8584SIPM is a 16-bit, 8-channel simultaneous sampling analog-to-digital converter (ADC) from Texas Instruments. Designed for precision measurement applications, it combines high accuracy with robust performance in industrial environments. With a maximum sampling rate of 500 kSPS per channel, this ADC is particularly suited for multi-channel data acquisition systems where phase information between channels must be preserved. The device operates from a single 5V supply and includes programmable gain amplifiers for flexible signal conditioning.

Structure and Working Principle

The ADS8584SIPM integrates eight independent ADC cores with sample-and-hold circuits that operate simultaneously. Each channel has its own input buffer and programmable gain amplifier (PGA) with gain options from 1 to 128. The device uses a successive approximation register (SAR) architecture for conversion, providing deterministic latency and excellent linearity. Digital interfaces include parallel and serial options (SPI), allowing flexible integration with various processors and FPGAs. Internal reference buffers and temperature sensors enhance measurement stability.

Key Features

The ADS8584SIPM stands out for its excellent DC accuracy (INL ±1.5 LSB max) and high CMRR (100 dB) which makes it resistant to common-mode noise. The wide input range (±10V, ±5V, ±2.5V) accommodates diverse sensor signals without external conditioning. Power efficiency is another highlight, with the device consuming only 45 mW per channel at full speed. The integrated diagnostics include open/short circuit detection and overvoltage protection (±20V), significantly improving system reliability in harsh environments.

Application Areas

This ADC is widely used in power quality analyzers for simultaneous measurement of voltage and current waveforms. In motor control systems, it enables precise monitoring of multiple phase currents. Medical imaging equipment benefits from its high channel count and low noise performance. The device is also employed in automated test equipment (ATE) where multi-channel, phase-coherent sampling is critical for accurate measurements of DUT responses.

Maintenance and Precautions

For optimal performance, follow the manufacturer's layout guidelines regarding power supply decoupling and ground planes. Analog and digital supplies should be properly isolated, with separate ground returns connected at a single point. ESD protection measures must be implemented during handling. The device should be stored in anti-static packaging when not in use. Operating temperature range (-40°C to +125°C) should not be exceeded to prevent permanent damage or degraded performance.

B2B Procurement Guide

When sourcing the ADS8584SIPM, verify the packaging option (HTQFP-80) matches your assembly process. Lead time typically ranges from 8-12 weeks for standard orders, so plan procurement accordingly. Consider buying from authorized distributors to ensure genuine parts and access to technical support. For high-volume applications (10,000+ units), negotiate pricing directly with Texas Instruments or their franchised partners. Request samples for prototype validation before committing to large orders.