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Texas Instruments ADS8354IRTET
- Part No.:
- ADS8354IRTET
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
ADS8354IRTET.pdf
- Description:
- IC ADC 16WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,946
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Product details
Overview
ADS8354IRTET from Texas Instruments is a 16-bit, dual-channel, simultaneous-sampling analog-to-digital converter (ADC) with fully-differential inputs, 700 kSPS throughput, ±2.5-LSB max INL, and 93-dB SNR at 20 kHz - deployed in motor position feedback loops requiring precise, time-aligned sampling of encoder signals.
For engineers reviewing the ADS8354IRTET datasheet, ADS8354IRTET pinout, ADS8354IRTET application, or ADS8354IRTET equivalent, this page delivers verified specifications, WQFN-16 package details, dual ADC isolation performance, reference buffer behavior, and real-world selection guidance for high-precision industrial control systems.
Technical Context
The ADS8354IRTET integrates two independent 16-bit SAR ADCs sharing a common serial interface, each with dedicated programmable reference buffers (REFIO_A/REFIO_B) and separate reference ground pins (REFGND_A/REFGND_B) to minimize crosstalk. It supports both internal 2.5-V reference and external reference configurations.
Its simultaneous sampling architecture ensures sub-40-ps inter-channel aperture match (tA match), enabling accurate phase difference measurement in three-phase power monitoring and servo control. The device operates across –40°C to +125°C with AVDD = 5 V and DVDD = 3.3 V, and supports 32-clock and 16-clock serial read modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - delivers 65,536 discrete output codes for high-fidelity signal digitization in closed-loop control. |
| Sampling Rate | 700 kSPS - supports real-time capture of fast transients in motor current sensing and protection relay applications. |
| INL (Max) | ±2.5 LSB - ensures monotonicity and <1 LSB linearity error over full temperature range for precision calibration. |
| SNR | 93 dB (typ, fIN = 20 kHz) - enables >15-bit effective resolution in noise-sensitive optical networking gain control. |
| Aperture Match | 40 ps (tA match) - guarantees sub-degree phase alignment between channels for accurate vector measurements. |
| Reference | Internal 2.5-V buffered reference (±1 mV match between A/B) - eliminates need for external precision reference in space-constrained designs. |
| Supply Range | AVDD = 4.5–5.5 V; DVDD = 1.65–5.5 V - allows flexible power domain partitioning in mixed-voltage industrial PCBs. |
Pinout & Package
ADS8354IRTET is packaged in a 3-mm × 3-mm, 16-pin WQFN (RTE) with exposed thermal pad. Pin numbering follows top-view orientation; TI recommends soldering the thermal pad to PCB ground for optimal thermal performance and noise immunity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AINP_A / AINP_B | Positive analog input (Ch A / Ch B) | Differential pair inputs accepting ±VREF or ±2×VREF full-scale ranges; require matched layout for CMRR >70 dB. |
| AINM_A / AINM_B | Negative analog input (Ch A / Ch B) | Completes differential input path; common-mode voltage must be within VREF/2 ±0.1 V for ±VREF mode. |
| REFIO_A / REFIO_B | Reference I/O (Ch A / Ch B) | Configurable as 2.5-V reference output or external reference input; internal DAC sets VREFOUT with 1.1-mV step resolution. |
| REFGND_A / REFGND_B | Reference ground (Ch A / Ch B) | Independent low-impedance return paths prevent reference coupling between ADC channels. |
| SDO_A / SDO_B | Serial data output (Ch A / Ch B) | Separate outputs allow independent channel readout; support daisy-chain or parallel interface configurations. |
| AVDD / DVDD / GND | Analog/digital supply & ground | Split supplies reduce digital switching noise coupling into analog conversion; AVDD powers core ADC and reference. |
| SCLK / CS / SDI | Serial interface control | Standard SPI-compatible interface; CS falling edge initiates conversion; SCLK up to 50 MHz supports 700-kSPS throughput. |
| Thermal Pad | Exposed thermal pad | Must be connected to PCB ground plane; improves thermal resistance (RθJB = 7.3°C/W) and reduces junction temperature rise. |
Key Features
| Feature | Design Value |
|---|---|
| Simultaneous sampling | Guarantees time-aligned conversion start for both channels - essential for accurate phase and power factor calculation. |
| Dual programmable references | Independent REFIO_A/REFIO_B with 2.5-V internal reference and ±1-mV matching - enables system-level gain calibration without external components. |
| ADC-to-ADC isolation | –110 dB (ISOXT) at 15 kHz - suppresses crosstalk between channels during high-frequency signal acquisition. |
| Extended temperature range | –40°C to +125°C operation - qualified for under-hood automotive motor control and industrial drive environments. |
| Low-power standby mode | 1-μA quiescent current in STANDBY - enables rapid wake-up (<1 μs) while minimizing system-level power budget impact. |
Applications
| Motor Position Feedback | Three-Phase Power Monitoring |
|---|---|
Use Scenario: Real-time capture of A/B quadrature signals from rotary encoders on PMSM or BLDC motors. IC Role / Device Role / Timing Role: Dual simultaneous-sampling ADC digitizes both encoder channels with <40-ps inter-channel timing skew to preserve phase relationship. Use Value: Enables sub-0.1° electrical angle resolution for field-oriented control (FOC), improving torque ripple and efficiency. |
Use Scenario: Simultaneous voltage and current sampling across all three phases in energy meters or grid-tie inverters. IC Role / Device Role / Timing Role: Two ADCs acquire synchronized line-to-line voltage and phase current pairs per cycle for true RMS and harmonic analysis. Use Value: Eliminates phase-skew-induced errors in power quality metrics (THD, PF, harmonics) per IEC 61000-4-30 Class A. |
| Optical Network EDFA Control | Protection Relay Signal Acquisition |
Use Scenario: Closed-loop gain adjustment in Erbium-Doped Fiber Amplifiers using photodiode feedback signals. IC Role / Device Role / Timing Role: High-SNR (93 dB), low-THD (–100 dB) ADC digitizes dual photodiode outputs for differential gain error correction. Use Value: Supports <0.01-dB gain stability over temperature and aging, meeting Telcordia GR-1312-CORE requirements. |
Use Scenario: Fault detection in medium-voltage substations via simultaneous sampling of CT/PT secondary signals. IC Role / Device Role / Timing Role: Simultaneous acquisition of current and voltage waveforms enables accurate fault direction and distance estimation. Use Value: Meets IEEE C37.112-2018 <1-cycle (16.7 ms @ 60 Hz) fault detection latency with <1% amplitude error. |
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 |
|---|---|---|---|
| ADS8353IRTET | 16-bit, single-ended/pseudo-differential input; no simultaneous sampling; lower SNR (89 dB); same WQFN-16 package. | Used where cost-sensitive designs accept reduced CMRR and lack need for strict channel synchronization. | Select only if input signals are single-ended and inter-channel timing alignment is not required. |
| ADS7854IRTET | 14-bit resolution; 1 MSPS; ±1.5-LSB INL; 88-dB SNR; pin-compatible but lower DC/AC accuracy. | Preferred in high-throughput applications where 14-bit resolution suffices (e.g., basic motor speed control). | Choose when throughput >700 kSPS is critical and 16-bit linearity is not required for system accuracy. |
Compared with ADS8354IRTET, ADS8353IRTET sacrifices differential input capability and timing coherence for cost reduction, while ADS7854IRTET trades resolution and SNR for higher sample rate - making ADS8354IRTET the optimal choice for precision simultaneous sampling where 16-bit integrity and phase fidelity are non-negotiable.
Availability
ADS8354IRTET is available at Aetrix Electronics and suitable for motor control, power quality monitoring, and optical networking applications requiring stable component supply, extended temperature operation, and guaranteed long-term manufacturability.
Supply support for ADS8354IRTET 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 ADSxx54 family - including ADS8354IRTET - was engineered specifically for high-reliability industrial automation, focusing on simultaneous sampling integrity, wide temperature resilience, and integrated reference flexibility.
FAQ
What is the maximum sampling rate supported by the ADS8354IRTET?
The ADS8354IRTET supports a maximum throughput of 700 kSPS in its standard 32-clock serial interface mode. This rate is achievable with internal 2.5-V reference and AVDD = 5 V, DVDD = 3.3 V. In 16-clock mode, throughput remains 700 kSPS but with reduced serial interface overhead - confirmed in Section 7.10 of the SBAS556B datasheet.
Does the ADS8354IRTET require external reference components?
No, the ADS8354IRTET includes an integrated 2.5-V reference with ±1 mV matching between channels and 10 ppm/°C drift. External decoupling (10 µF ceramic capacitor on REFIO pins) is mandatory, but no precision external reference IC or resistor network is needed unless using external VREF >2.5 V.
How is simultaneous sampling implemented in the ADS8354IRTET?
The ADS8354IRTET uses a shared sampling capacitor array and dual independent conversion paths triggered by a single CONVST signal (implicit on CS falling edge). Its aperture delay match is specified at ≤40 ps, ensuring sub-degree phase alignment - critical for vector-controlled motor drives and power analyzers.
What package options are available for the ADS8354IRTET?
The ADS8354IRTET is offered exclusively in the 3-mm × 3-mm, 16-pin WQFN package (RTE suffix). The TSSOP-16 (PW) variant exists in the ADSxx54 family but is not assigned to the ADS8354IRTET orderable part number - only RTE is valid for this specific device.
Can the ADS8354IRTET operate with different analog and digital supply voltages?
Yes - ADS8354IRTET supports independent AVDD (4.5–5.5 V) and DVDD (1.65–5.5 V) supplies. This allows interfacing with 1.8-V or 3.3-V microcontrollers while maintaining 5-V analog headroom for dynamic range, as verified in Section 7.3 (Recommended Operating Conditions) of the datasheet.
ADS8354IRTET Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- -
- Sampling Rate (Per Second):
- -
- Number of Inputs:
- -
- Input Type:
- -
- Data Interface:
- -
- Configuration:
- -
- Ratio - S/H:ADC:
- -
- Number of A/D Converters:
- -
- Architecture:
- -
- Reference Type:
- -
- Voltage - Supply, Analog:
- -
- Voltage - Supply, Digital:
- -
- Features:
- -
- Operating Temperature:
- -
- Supplier Device Package:
- 16-WQFN (3x3)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS8354IRTET FAQ
1.How can I place an order for ADS8354IRTET through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS8354IRTET 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 ADS8354IRTET reliable?
The price and inventory of ADS8354IRTET are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS8354IRTET is usually 5 days.
3.What payment methods are accepted for ADS8354IRTET?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS8354IRTET transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS8354IRTET?
ADS8354IRTET orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS8354IRTET 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 ADS8354IRTET?
For technical support, including ADS8354IRTET datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS8354IRTET requirements.
6.How does Aetrix verify that ADS8354IRTET is sourced from the original manufacturer or authorized distributors?
All ADS8354IRTET 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 ADS8354IRTET meets industry standards.
7.What is the process for return or replacement of ADS8354IRTET?
All ADS8354IRTET units undergo pre-shipment inspection (PSI). If there is an issue with ADS8354IRTET, 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 ADS8354IRTET part is unused and in its original packaging.
Return procedure for ADS8354IRTET:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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