Texas Instruments ADS8598HIPM

Overview

ADS8598HIPM from Texas Instruments is an 18-bit, 500-kSPS, 8-channel simultaneous-sampling SAR ADC with integrated analog front-end, bipolar ±10 V/±5 V inputs on single 5-V supply, and on-chip 2.5-V reference - used in high-accuracy power grid monitoring and protection relay systems.

For engineers reviewing the ADS8598HIPM datasheet, ADS8598HIPM pinout, ADS8598HIPM application, or ADS8598HIPM equivalent, this page delivers verified electrical specs, LQFP-64 package mapping, real-world timing behavior, interface mode selection logic (PAR/SER/BYTE), and channel-to-channel matching data critical for multichannel industrial DAQ design.

Technical Context

The ADS8598HIPM implements true simultaneous sampling across all eight channels using dual independent CONVSTA/CONVSTB triggers, enabling zero-latency synchronized acquisition for phase-sensitive applications like multi-phase motor control. Its per-channel AFE includes a 1-MΩ input impedance PGA, 3rd-order LPF, overvoltage clamp, and ADC driver - eliminating external signal conditioning.

Digital interface flexibility is achieved via three configurable modes: parallel (16-bit DB[15:0]), serial (DOUTA/DOUTB with SCLK), and byte-mode (DB[7:0] + BYTE_SEL), all controlled by PAR/SER/BYTE_SEL and RD/SCLK pins. Oversampling up to 32× is enabled via OS0–OS2 pins and improves SNR to 101.9 dB at 130 Hz.

Key Specifications

Pinout & Package

LQFP-64 (10.00 mm × 10.00 mm) package with exposed thermal pad; requires AGND-connected thermal vias and separate AVDD/DVDD decoupling per TI layout guidelines.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADS8598HIPM, ADS8698IPMR trades oversampling and bipolar range flexibility for higher speed, while AD7606C-18BSTZ sacrifices on-chip reference and linearity to reduce system-level BOM count - making ADS8598HIPM optimal for accuracy-critical, thermally demanding, and layout-constrained protection and monitoring systems.

Availability

ADS8598HIPM is available at Aetrix Electronics and suitable for power grid monitoring, protection relay development, and multi-phase motor control applications requiring stable component supply across extended temperature and long product lifecycles.

Supply support for ADS8598HIPM 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, embedded processing, and high-reliability ICs for industrial, automotive, and communications markets.

The ADS8598HIPM belongs to TI's high-precision data acquisition portfolio, designed specifically for mission-critical industrial sensing where simultaneous sampling, wide input range, and extended temperature operation are mandatory.

FAQ

What is the maximum sampling rate per channel for the ADS8598HIPM?

The ADS8598HIPM achieves a maximum throughput of 500 kSPS per channel with simultaneous sampling across all eight inputs. This rate is sustained without latency or pipeline delay, and each conversion completes in 2 µs - confirmed in the Electrical Characteristics table (fS = 500 kSPS) and Timing Requirements section of the SBAS829 datasheet.

Does the ADS8598HIPM support both ±10 V and ±5 V input ranges on the same device?

Yes, the ADS8598HIPM supports pin-programmable bipolar input ranges: ±10 V or ±5 V, selected via the RANGE pin. When STBY is high, RANGE = 1 configures ±10 V full-scale span; RANGE = 0 configures ±5 V - both operating from a single 5-V analog supply, as specified in the Electrical Characteristics table under "Full-scale input span".

How does the oversampling feature improve performance in the ADS8598HIPM?

The ADS8598HIPM's on-chip digital oversampling filter increases effective resolution and SNR: at 32× oversampling, SNR improves from 94 dB (no OS) to 101.9 dB for ±10 V input at 130 Hz. This is achieved via OS0–OS2 pin configuration and requires no host firmware - the filtered result appears automatically on DB[15:0] or DOUTA/DOUTB outputs.

What package type and thermal characteristics apply to the ADS8598HIPM?

The ADS8598HIPM uses a 64-pin LQFP (PM package) with 10.00 mm × 10.00 mm body size and exposed thermal pad. Its junction-to-ambient thermal resistance (RθJA) is 46.0°C/W, and junction-to-board (RθJB) is 20.1°C/W - validated per JEDEC JESD51 standards and documented in Section 6.4 of the SBAS829 datasheet.

Can the ADS8598HIPM operate with an external reference, and what are the requirements?

Yes, the ADS8598HIPM supports external reference input via the REFIN/REFOUT pin when REFSEL = 0. The external reference must be 2.475 V to 2.525 V, with ≥100-MΩ input impedance and ≤10-pF capacitance. A 10-µF capacitor is required between REFIN/REFOUT and REFGND - details are in Section 6.5 "Electrical Characteristics" of the SBAS829 datasheet.