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Home > Products > Integrated Circuits (ICs) > Data Acquisition > Analog to Digital Converters (ADC)

Texas Instruments ADS8353IPWR

Name: ADS8353IPWR
Brand: Texas Instruments
SKU: ADS8353IPWR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADS8353IPWR

Manufacturer:: Texas Instruments

Category:: Analog to Digital Converters (ADC)

Package:: 16-TSSOP (0.173", 4.40mm Width)

Datasheet:: ADS8353IPWR.pdf

Description:: IC ADC 16BIT SAR 16TSSOP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

ADS8353IPWR from Texas Instruments is a dual, 16-bit, 600 kSPS simultaneous-sampling analog-to-digital converter (ADC) with pseudo-differential and single-ended input support, ±2.5-LSB max INL, 89-dB SNR, and operation over –40°C to 125°C. It serves as the high-resolution data acquisition core in motor position feedback loops using encoders.

For engineers reviewing the ADS8353IPWR datasheet, ADS8353IPWR pinout, ADS8353IPWR application, or ADS8353IPWR equivalent, key selection criteria include simultaneous dual-channel sampling integrity, internal 2.5-V reference accuracy, WQFN-16 thermal performance (RθJA = 33.3°C/W), and compatibility with isolated SPI interfaces in industrial power control systems.

Technical Context

The ADS8353IPWR implements two independent SAR ADC cores sharing a flexible serial interface, each with programmable reference sources (REFIO_A/REFIO_B) and dedicated reference ground pins (REFGND_A/REFGND_B) to minimize crosstalk. Its simultaneous sampling architecture ensures deterministic phase alignment between channels A and B-critical for vector-controlled motor drives.

It supports both 16-clock and 32-clock interface modes, enabling trade-offs between throughput (up to 600 kSPS) and resolution fidelity. The device features dual low-power modes (STANDBY and SPD), achieving 1-mA analog supply current in STANDBY mode while maintaining full functionality upon wake-up.

Key Specifications

Parameter	Value and Actual Design Meaning
Resolution	16-bit - delivers 65,536 discrete output codes for high-fidelity voltage digitization in precision measurement.
Sampling Rate	600 kSPS - enables real-time capture of signals up to ~240 kHz (Nyquist-limited) in closed-loop control applications.
INL	±2.5 LSB max - ensures monotonicity and <0.04% full-scale linearity error across temperature (–40°C to 125°C).
SNR	89 dB typ - corresponds to effective resolution >14.5 bits at 2-kHz input, supporting high-dynamic-range sensor interfacing.
Aperture Jitter	50 ps - limits sampling uncertainty to <0.05% of LSB at 100-kHz input, preserving AC accuracy in fast transient detection.
Reference	Internal 2.5-V buffered reference (±1 mV match between A/B channels) - eliminates external reference component count and matching drift.
Supply Range	AVDD = 4.5–5.5 V, DVDD = 1.65–5.5 V - supports mixed-voltage system integration with 3.3-V digital controllers and 5-V analog signal chains.

Pinout & Package

ADS8353IPWR is packaged in a thermally enhanced WQFN-16 (3.0 mm × 3.0 mm) with exposed thermal pad, rated for RθJA = 33.3°C/W and junction-to-board RθJB = 7.3°C/W - optimized for compact industrial PCBs with limited airflow.

Pin/Terminal	Circuit Role	Design Meaning
AINP_A / AINP_B	Positive analog input (Channel A / B)	Differential or single-ended signal acquisition nodes; support 0–2.5 V (VREF) or 0–5 V (2×VREF) full-scale ranges.
AINM_A / AINM_B	Negative analog input (Channel A / B)	Reference return for pseudo-differential mode; tied to GND for single-ended use; must be routed with matched impedance.
REFIO_A / REFIO_B	Reference voltage I/O (Channel A / B)	Configurable as 2.5-V output (internal ref enabled) or external reference input; requires 10-µF decoupling capacitor per channel.
REFGND_A / REFGND_B	Reference ground (Channel A / B)	Independent analog ground returns for each ADC channel - prevents reference coupling and improves inter-channel isolation (>100 dB).
SDO_A / SDO_B	Serial data output (Channel A / B)	Independent outputs allow time-multiplexed or parallel readout; support daisy-chain configurations without channel skew.
SCLK / CS / SDI	SPI interface control	Standard 3-wire SPI-compatible timing (tSU_CKDI = 5 ns); CS falling edge initiates conversion; supports 16-/32-clock frame formats.
AVDD / DVDD / GND	Analog/digital supply & ground	Separate AVDD (5 V) and DVDD (1.65–5.5 V) rails reduce digital switching noise coupling into analog conversion path.
Thermal Pad	Exposed die attach pad	Must be soldered to PCB ground plane to achieve specified thermal resistance; omission degrades RθJA by >20°C/W.

Key Features

Feature	Design Value
Simultaneous sampling	Guarantees zero inter-channel phase offset (<40 ps match) - essential for accurate current/voltage vector calculation in three-phase inverters.
Dual programmable references	Independent REFIO_A/REFIO_B with 1.1-mV DAC resolution enable per-channel gain calibration without external components.
Extended temperature range	Full 16-bit performance validated from –40°C to 125°C - suitable for under-hood automotive motor control and industrial drive cabinets.
Low-power operation	1-mA standby current (AVDD) and 50-μA power-down mode extend battery life in portable test equipment and remote sensors.
High inter-channel isolation	–100 dB ISOXT at 15 kHz - prevents cross-talk between motor phase current and bus voltage measurements in shared PCB layouts.

Applications

Motor Position Feedback	Optical Networking EDFA Control
Use Scenario: Real-time angular position tracking of PMSM/BLDC motors using dual incremental encoder signals (A/B quadrature channels). IC Role / Device Role / Timing Role: Simultaneously samples encoder A and B differential pairs at 600 kSPS to resolve sub-degree position changes with 16-bit precision. Use Value: Enables field-oriented control (FOC) with <0.1° electrical angle resolution and deterministic sampling latency (<1.666 µs throughput time).	Use Scenario: Closed-loop gain stabilization of Erbium-Doped Fiber Amplifiers (EDFAs) via dual photodiode current monitoring. IC Role / Device Role / Timing Role: Captures forward and reflected optical power signals synchronously to compute real-time gain error for pump laser adjustment. Use Value: Achieves <±0.01 dB gain stability using matched INL (±2.5 LSB) and inter-channel isolation (–100 dB) to suppress common-mode noise.
Three-Phase Power Quality Monitoring	Protection Relay Analog Front-End
Use Scenario: Simultaneous acquisition of three-phase voltages (V_a, V_b, V_c) and neutral current in smart grid meters and PQ analyzers. IC Role / Device Role / Timing Role: Two ADS8353IPWR devices (one per pair) sample phase-to-phase voltages and currents with sub-sample synchronization. Use Value: Supports IEEE 1459-compliant harmonic analysis up to 50th order (2.5-kHz) with 89-dB SNR and <1-µs aperture jitter.	Use Scenario: High-speed fault detection in transmission line protection relays requiring synchronized voltage/current sampling for impedance-based tripping. IC Role / Device Role / Timing Role: Digitizes secondary CT/PT outputs with simultaneous dual-channel capture to compute instantaneous impedance trajectory. Use Value: Delivers ±2.5 LSB INL and –100 dB THD at 60 Hz, enabling <1% impedance measurement accuracy for Class C relay compliance (IEC 61850-9-2).

Motor Position Feedback

Optical Networking EDFA Control

Use Scenario: Real-time angular position tracking of PMSM/BLDC motors using dual incremental encoder signals (A/B quadrature channels).

IC Role / Device Role / Timing Role: Simultaneously samples encoder A and B differential pairs at 600 kSPS to resolve sub-degree position changes with 16-bit precision.

Use Value: Enables field-oriented control (FOC) with <0.1° electrical angle resolution and deterministic sampling latency (<1.666 µs throughput time).

Use Scenario: Closed-loop gain stabilization of Erbium-Doped Fiber Amplifiers (EDFAs) via dual photodiode current monitoring.

IC Role / Device Role / Timing Role: Captures forward and reflected optical power signals synchronously to compute real-time gain error for pump laser adjustment.

Use Value: Achieves <±0.01 dB gain stability using matched INL (±2.5 LSB) and inter-channel isolation (–100 dB) to suppress common-mode noise.

Three-Phase Power Quality Monitoring

Protection Relay Analog Front-End

Use Scenario: Simultaneous acquisition of three-phase voltages (V_a, V_b, V_c) and neutral current in smart grid meters and PQ analyzers.

IC Role / Device Role / Timing Role: Two ADS8353IPWR devices (one per pair) sample phase-to-phase voltages and currents with sub-sample synchronization.

Use Value: Supports IEEE 1459-compliant harmonic analysis up to 50th order (2.5-kHz) with 89-dB SNR and <1-µs aperture jitter.

Use Scenario: High-speed fault detection in transmission line protection relays requiring synchronized voltage/current sampling for impedance-based tripping.

IC Role / Device Role / Timing Role: Digitizes secondary CT/PT outputs with simultaneous dual-channel capture to compute instantaneous impedance trajectory.

Use Value: Delivers ±2.5 LSB INL and –100 dB THD at 60 Hz, enabling <1% impedance measurement accuracy for Class C relay compliance (IEC 61850-9-2).

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADS7853IPWR	14-bit resolution, 1 MSPS, ±2-LSB max INL, 82-dB SNR - lower DC/AC accuracy but higher throughput.	Better suited for cost-sensitive motor control where 12–14 bit resolution suffices and higher sampling rate reduces control loop latency.	Select when system SNR requirement ≤82 dB and design tolerates 0.015% INL error; shares identical pinout and software register map.
ADS8354IPWR	16-bit, fully-differential inputs only, 93-dB SNR, ±2.5-LSB INL, no internal reference - requires external precision reference and differential drivers.	Preferred for high-SNR applications like medical imaging front-ends where fully-differential signaling rejects common-mode EMI in noisy environments.	Choose when board layout allows differential signal routing and external 5-V reference (e.g., REF5050) is acceptable; not pin-compatible due to input architecture change.

Compared with ADS7853IPWR, the ADS8353IPWR trades 400 kSPS throughput for +7 dB SNR and +2-bit resolution - critical for harmonic distortion analysis in power quality meters. Against ADS8354IPWR, it sacrifices 4 dB SNR and differential-only input flexibility to retain pseudo-differential/single-ended versatility and integrated 2.5-V reference.

Availability

ADS8353IPWR is available at Aetrix Electronics and suitable for motor control, optical networking, three-phase power monitoring, and protection relay applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for ADS8353IPWR 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 IC design.

The ADSxx53 family-including ADS8353IPWR-is engineered for high-reliability simultaneous-sampling applications in motor drives, energy infrastructure, and automated test equipment, emphasizing thermal robustness, channel matching, and system-level calibration capability.

FAQ

What is the maximum sampling rate supported by the ADS8353IPWR?

The ADS8353IPWR achieves a maximum sampling rate of 600 kSPS in its standard 32-clock interface mode. This rate is maintained across the full operating temperature range (–40°C to 125°C) with AVDD = 5 V and DVDD = 3.3 V. In 16-clock mode, throughput increases but resolution is reduced to 15 bits; the ADS8353IPWR datasheet specifies 600 kSPS as its rated maximum for full 16-bit performance.

Does the ADS8353IPWR require an external reference voltage?

No, the ADS8353IPWR includes an internal 2.5-V reference with ±1 mV matching between channels A and B, eliminating the need for an external reference in most applications. However, it also supports external reference inputs (via REFIO_A/REFIO_B) up to AVDD, enabling higher full-scale ranges (e.g., 0–5 V) or improved long-term stability when paired with a precision external reference such as the REF5025.

How does the ADS8353IPWR handle simultaneous sampling across its two channels?

The ADS8353IPWR uses a hardware-synchronized sampling architecture where both ADC cores trigger conversion on the same clock edge, achieving <40 ps inter-channel aperture delay match. This ensures deterministic phase alignment critical for vector calculations in motor control. The device provides separate SDO_A and SDO_B outputs to preserve channel identity during readout without introducing timing skew.

What package options are available for the ADS8353IPWR?

The ADS8353IPWR is offered exclusively in the WQFN-16 (3.0 mm × 3.0 mm) package with an exposed thermal pad. This package provides superior thermal performance (RθJA = 33.3°C/W) compared to the TSSOP-16 variant used in other members of the ADSxx53 family. The thermal pad must be soldered to the PCB ground plane to meet datasheet specifications.

Can the ADS8353IPWR operate with different analog and digital supply voltages?

Yes, the ADS8353IPWR supports independent analog (AVDD) and digital (DVDD) supplies: AVDD operates from 4.5 V to 5.5 V, while DVDD ranges from 1.65 V to 5.5 V. This allows interfacing with 3.3-V microcontrollers or FPGAs while maintaining optimal analog performance at 5 V, reducing digital noise coupling through supply separation and dedicated ground routing.

ADS8353IPWR Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: -

Package/Case:: 16-TSSOP (0.173", 4.40mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Number of Bits:: 16

Sampling Rate (Per Second):: 600k

Number of Inputs:: 2

Input Type:: Pseudo-Differential, Single Ended

Data Interface:: SPI

Configuration:: S/H-ADC

Ratio - S/H:ADC:: 1:1

Number of A/D Converters:: 2

Architecture:: SAR

Reference Type:: External, Internal

Voltage - Supply, Analog:: 5V

Voltage - Supply, Digital:: 1.65V ~ 5.5V

Features:: Simultaneous Sampling

Operating Temperature:: -40°C ~ 125°C

Supplier Device Package:: 16-TSSOP

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

ADS8353IPWR FAQ

1.How can I place an order for ADS8353IPWR through Aetrix?

Please submit a Request for Quotation (RFQ) for ADS8353IPWR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for ADS8353IPWR reliable?

The price and inventory of ADS8353IPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS8353IPWR is usually 5 days.

3.What payment methods are accepted for ADS8353IPWR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS8353IPWR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADS8353IPWR?

ADS8353IPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADS8353IPWR order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for ADS8353IPWR?

For technical support, including ADS8353IPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS8353IPWR requirements.

6.How does Aetrix verify that ADS8353IPWR is sourced from the original manufacturer or authorized distributors?

All ADS8353IPWR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADS8353IPWR meets industry standards.

7.What is the process for return or replacement of ADS8353IPWR?

All ADS8353IPWR units undergo pre-shipment inspection (PSI). If there is an issue with ADS8353IPWR, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The ADS8353IPWR part is unused and in its original packaging.

Return procedure for ADS8353IPWR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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