Texas Instruments ADS8584SIPM

Overview

ADS8584SIPM from Texas Instruments is a 16-bit, simultaneous-sampling SAR ADC with integrated analog front-end for 4-channel bipolar data acquisition. It delivers 330 kSPS per channel, ±0.35 LSB DNL, 96.4 dB SNR (with 16× oversampling), and operates from a single 5-V analog supply while accepting ±10 V or ±5 V inputs - ideal for high-accuracy power grid monitoring and protection relay systems.

For engineers reviewing the ADS8584SIPM datasheet, ADS8584SIPM pinout, ADS8584SIPM application, or ADS8584SIPM equivalent, this page provides verified specifications, validated pin functions, confirmed thermal and dynamic performance across –40°C to +125°C, and real-world interface timing for parallel/serial/byte modes - all aligned to TI's SBAS834A production data sheet.

Technical Context

The ADS8584SIPM implements four independent, matched analog signal chains - each with 1 MΩ input impedance, overvoltage clamp, 3rd-order LPF, and PGA - enabling true simultaneous sampling without inter-channel crosstalk (–95 dB isolation). Its internal 2.5-V reference features 7.5 ppm/°C drift and 25-ms turn-on time, buffered to drive the ADC core at 4.0 V.

Digital control includes three OSx pins for 1×–16× oversampling, PAR/SER/BYTE SEL for interface mode selection, and dual CONVST inputs (CONVSTA/CONVSTB) to stagger start timing across two channel pairs - supporting deterministic latency-free conversion sequencing in real-time industrial control loops.

Key Specifications

Pinout & Package

ADS8584SIPM is housed in a 64-pin LQFP package (10.00 mm × 10.00 mm), with dedicated analog/digital ground separation, dual AVDD/DVDD supplies, and 8 analog input terminals (AIN_1P/GND through AIN_4P/GND) for true differential channel pairing.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-precision, multi-channel SAR ADC applications.

Compared with ADS8584SIPM, ADS8588SIPM trades speed and filtering for channel count, while AD7606C-18BSTZ increases resolution at the cost of design complexity - making ADS8584SIPM optimal for balanced performance in protection-class industrial DAQ.

Availability

ADS8584SIPM is available at Aetrix Electronics and suitable for power grid monitoring, protection relays, and multi-phase motor controls requiring stable component supply across extended temperature and long product lifecycles.

Supply support for ADS8584SIPM includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in precision data converters for industrial and energy infrastructure.

The ADS8584SIPM belongs to TI's high-reliability SAR ADC portfolio designed specifically for mission-critical power systems - emphasizing simultaneous sampling accuracy, robust ESD tolerance, and extended temperature operation without performance degradation.

FAQ

What is the maximum sample rate per channel for the ADS8584SIPM?

The ADS8584SIPM achieves a maximum throughput of 330 kSPS per channel under simultaneous sampling mode with all four channels active. This rate is sustained across the full operating temperature range (–40°C to +125°C) and supports real-time capture of power system harmonics up to 160 kHz bandwidth. The ADS8584SIPM maintains this performance without latency or pipeline delay, delivering first-conversion data immediately after CONVST assertion.

Does the ADS8584SIPM require an external reference voltage?

No, the ADS8584SIPM integrates a low-drift 2.5-V reference with 7.5 ppm/°C temperature coefficient and includes a dedicated reference buffer. When REFSEL is high, the device uses its internal reference; when REFSEL is low, it accepts an external 2.475–2.525 V reference on the REFIN/REFOUT pin. The ADS8584SIPM's internal reference eliminates the need for external reference ICs in most industrial DAQ designs.

How does the ADS8584SIPM handle bipolar input ranges?

The ADS8584SIPM supports pin-programmable bipolar inputs of ±10 V or ±5 V using a single 5-V analog supply. The RANGE pin selects the full-scale span: high for ±10 V, low for ±5 V. This configuration requires no external level-shifting circuitry and maintains specified INL/DNL performance across both ranges. The ADS8584SIPM's analog front-end includes clamps and filters optimized for each range, ensuring robustness against overvoltage events.

What digital interface modes does the ADS8584SIPM support?

The ADS8584SIPM supports three hardware-configurable interface modes: parallel (16-bit DB[15:0]), serial (via DOUTA/DOUTB with SCLK), and parallel byte (DB[7:0] or DB[15:8]). Mode selection is controlled by the PAR/SER/BYTE SEL pin, and byte alignment is managed by DB15/BYTE SEL and DB14/HBEN. All modes operate at the same 330 kSPS throughput, and the ADS8584SIPM maintains consistent timing margins per TI's SBAS834A specification.

Is the ADS8584SIPM suitable for operation in harsh industrial environments?

Yes, the ADS8584SIPM is qualified for –40°C to +125°C operation and features 7-kV HBM ESD protection on analog inputs, 1 MΩ high-impedance inputs with overvoltage clamps, and robust immunity to supply noise and thermal drift. Its gain drift is limited to 6 ppm/°C and offset drift to 3 ppm/°C, ensuring stable calibration in uncontrolled enclosures. The ADS8584SIPM meets requirements for deployment in outdoor substations, motor control cabinets, and factory-floor DAQ systems.