Texas Instruments ADS8364Y/2K

Overview

ADS8364Y/2K from Texas Instruments is a 16-bit, 250kSPS simultaneous-sampling analog-to-digital converter with six fully differential input channels, six independent SAR ADCs, 4µs per-channel throughput, and ±8 LSB integral linearity error - deployed in motor control systems requiring precise multi-axis phase correlation.

For engineers reviewing the ADS8364Y/2K datasheet, ADS8364Y/2K pinout, ADS8364Y/2K application, or ADS8364Y/2K equivalent, key selection considerations include simultaneous sampling capability across three channel pairs (A/B/C), internal 2.5V reference with buffered REFIN/REFOUT, TQFP-64 package compatibility, and support for both 3V and 5V digital interface logic levels.

Technical Context

The ADS8364Y/2K implements six parallel 16-bit successive approximation register (SAR) ADCs, each paired with a fully differential sample-and-hold amplifier. Its architecture enables true simultaneous acquisition across all six inputs - grouped into three differential pairs (A0/A1, B0/B1, C0/C1) - preserving inter-channel phase integrity critical for closed-loop motion control.

It features a flexible high-speed parallel interface supporting direct address mode (A0–A2), cycle mode, and FIFO mode, with EOC and FD signals for timing synchronization. The device uses an internal 2.5V reference (±1% initial accuracy, ±20 ppm/°C drift) and supports external reference input (1.5V to 2.6V), enabling full-scale ranges from 3.0V to 5.2V.

Key Specifications

Pinout & Package

TQFP-64 package with exposed thermal pad (PAG designation); 10 mm × 10 mm body, 0.5 mm pitch, lead-free RoHS-compliant construction.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar simultaneous-sampling ADC applications.

Compared with ADS8364Y/2K, ADS8365IPAG sacrifices differential noise rejection for lower BOM count, while AD7656ASTZ trades parallel interface simplicity for serial flexibility and higher per-channel power - making ADS8364Y/2K optimal for deterministic, low-latency, noise-immune simultaneous sampling in motion control.

Availability

ADS8364Y/2K is available at Aetrix Electronics and suitable for motor control, multi-axis positioning systems, and 3-phase power control requiring stable component supply across extended production lifecycles.

Supply support for ADS8364Y/2K 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 over 90 years of innovation in precision data conversion and industrial signal chain solutions.

The ADS8364Y/2K belongs to TI's high-performance simultaneous-sampling ADC product line, designed specifically for real-time closed-loop control in motor drives, power electronics, and automated test equipment where inter-channel timing coherence is non-negotiable.

FAQ

What is the maximum clock frequency supported by the ADS8364Y/2K?

The ADS8364Y/2K supports an external CMOS-compatible clock up to 5 MHz, which corresponds to its rated 250kSPS throughput per channel. At this frequency, conversion time is 3.2 µs and acquisition time is 0.8 µs. Operating above 5 MHz violates timing specifications and may cause data corruption or missing codes in the ADS8364Y/2K output stream.

Does the ADS8364Y/2K require an external reference voltage?

No - the ADS8364Y/2K includes an internal 2.5 V reference with ±1% initial accuracy and ±20 ppm/°C temperature drift. It can operate with REFIN tied to REFOUT (pin 62 to pin 61). However, the ADS8364Y/2K also accepts external references from 1.5 V to 2.6 V on the REFIN pin, enabling custom full-scale ranges from 3.0 V to 5.2 V.

How does the ADS8364Y/2K achieve simultaneous sampling across six channels?

The ADS8364Y/2K achieves true simultaneous sampling using six independent sample-and-hold amplifiers and six SAR ADC cores. Three dedicated HOLD inputs (HOLDA, HOLDB, HOLDC) control acquisition on channel pairs (A0/A1, B0/B1, C0/C1). Asserting all three HOLD lines together initiates synchronized sampling across all six inputs - preserving phase relationships critical for vector control algorithms in the ADS8364Y/2K.

What digital interface options does the ADS8364Y/2K support?

The ADS8364Y/2K provides a high-speed parallel interface with three configurable readout modes: direct address (using A0–A2), cycle mode (auto-sequencing through all channels), and FIFO mode (data ordered by hold-event sequence). It supports both 3V and 5V digital logic levels on BVDD, and includes RD, WR, CS, EOC, and FD signals for precise timing control of the ADS8364Y/2K data transfer.

What is the operating temperature range for the ADS8364Y/2K?

The ADS8364Y/2K is specified for operation from –40°C to +85°C ambient temperature (TA), with junction temperature (TJ) rated up to +125°C. This industrial-grade range ensures reliable performance in motor drive cabinets, factory automation PLCs, and outdoor power electronics where thermal cycling and ambient extremes are common - consistent with the ADS8364Y/2K's intended use cases.