Texas Instruments ADS8353IRTET

Overview

ADS8353IRTET from Texas Instruments is a dual, simultaneous-sampling, 16-bit analog-to-digital converter (ADC) with pseudo-differential and single-ended input support, 600 kSPS throughput, ±2.5-LSB max INL, and 89-dB SNR. It operates across –40°C to 125°C and serves precision motor position feedback in industrial servo drives.

For engineers reviewing the ADS8353IRTET datasheet, ADS8353IRTET pinout, ADS8353IRTET application, or ADS8353IRTET equivalent, this page delivers verified electrical specs, WQFN-16 package details, dual-channel timing synchronization behavior, and validated alternatives for high-fidelity simultaneous acquisition systems.

Technical Context

The ADS8353IRTET integrates two independent 16-bit SAR ADCs sharing a common clock domain, enabling true simultaneous sampling with <40-ps inter-channel aperture delay match. Each channel features programmable reference buffers (REFIO_A/REFIO_B), dual internal 2.5-V references, and flexible serial interface supporting 16- or 32-clock readout modes.

It supports three analog input configurations per channel: single-ended (AINP_x to GND), pseudo-differential (±VREF/2 range), and full-scale differential (±VREF range with AVDD ≥ 2×VREF). DC accuracy is maintained via on-chip gain/offset calibration registers accessible via SPI.

Key Specifications

Pinout & Package

ADS8353IRTET is housed in a 3-mm × 3-mm, 16-pin WQFN package (RTE) with exposed thermal pad. Pin numbering follows top-view orientation; thermal pad must be soldered to PCB ground for thermal and EMI performance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADS8353IRTET, ADS8354IRTET delivers superior SNR but sacrifices input flexibility and requires redesign of front-end signal conditioning, while ADS7853IRTET offers identical mechanical and software compatibility at reduced resolution-ideal for cost-optimized motor control tiers.

Availability

ADS8353IRTET is available at Aetrix Electronics and suitable for industrial motor control, power quality analyzers, and protection relay designs requiring stable component supply, extended temperature operation, and guaranteed long-term manufacturability.

Supply support for ADS8353IRTET 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 and industrial-grade ICs.

The ADSxx53 family-including ADS8353IRTET-is designed specifically for high-fidelity, simultaneous dual-channel acquisition in harsh industrial environments, emphasizing timing integrity, DC accuracy, and thermal robustness.

FAQ

What is the maximum sampling rate of the ADS8353IRTET?

The ADS8353IRTET achieves a maximum sampling rate of 600 kSPS in standard operation. This rate is sustained across its full –40°C to +125°C temperature range with AVDD = 5 V and DVDD = 3.3 V. The device supports both 16-clock and 32-clock serial readout modes, with the latter preserving full 16-bit resolution at this throughput. Timing diagrams in the SBAS584B datasheet confirm tTHROUGHPUT = 1.666 µs for 32-clock mode.

Does the ADS8353IRTET support single-ended analog inputs?

Yes, the ADS8353IRTET supports single-ended inputs on both channels: AINP_A to REFGND_A and AINP_B to REFGND_B, with input range 0 to VREF. This mode is explicitly defined in Section 7.8 of the datasheet under "ANALOG INPUT" and is commonly used with resistive divider networks or op-amp buffers. The device also supports pseudo-differential (±VREF/2) and full differential (±VREF) configurations.

What reference voltage options does the ADS8353IRTET provide?

The ADS8353IRTET integrates two independent, programmable 2.5-V internal references (REFIO_A and REFIO_B), each with ±1-mV matching and ±10-ppm/°C drift. These can be used as buffered outputs or overridden by external references up to AVDD. The datasheet specifies VREF range as 2.4 V to AVDD (or AVDD/2 for 2×VREF mode), supporting flexible scaling for multi-range sensor systems.

Is the ADS8353IRTET pin-compatible with other devices in the ADSxx53 family?

Yes, the ADS8353IRTET is fully pin-compatible with ADS7853IRTET and ADS7253IRTET in both WQFN-16 (RTE) and TSSOP-16 (PW) packages. All share identical pin functions, power requirements, and serial interface timing. This allows hardware reuse across resolution tiers-e.g., upgrading from 14-bit to 16-bit performance without PCB revision-provided layout accommodates the thermal pad in WQFN variants.

What is the aperture jitter specification for the ADS8353IRTET?

The ADS8353IRTET has a maximum aperture jitter of 50 ps, as specified in Section 7.8 ("SAMPLING DYNAMICS") of the SBAS584B datasheet. This low jitter enables high-fidelity sampling of wideband signals: at 100 kHz input frequency, it contributes <0.05% timing uncertainty to the sampled value, making it suitable for phase-critical applications like synchronous current measurement in inverters.