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Texas Instruments ADS8353IPW
- Part No.:
- ADS8353IPW
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
ADS8353IPW.pdf
- Description:
- IC ADC 16BIT SAR 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,036
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Product details
Overview
ADS8353IPW from Texas Instruments is a dual, simultaneous-sampling, 16-bit analog-to-digital converter (ADC) with 600 kSPS throughput, ±2.5-LSB max INL, 89-dB SNR, and support for single-ended/pseudo-differential inputs. It operates from 5-V AVDD and 3.3-V DVDD, features dual programmable 2.5-V internal references, and targets high-precision motor position measurement and three-phase power control systems.
For engineers reviewing the ADS8353IPW datasheet, ADS8353IPW pinout, ADS8353IPW application, or ADS8353IPW equivalent, this page delivers verified technical context, real-world timing and accuracy specs, package-specific layout guidance, and validated alternative options - all grounded in TI's SBAS584B production data sheet.
Technical Context
The ADS8353IPW implements two independent SAR ADC cores with synchronized sampling control, enabling true simultaneous capture of two analog channels without inter-channel skew. Its flexible serial interface supports both 16- and 32-clock readout modes, and dual buffered reference outputs (REFIO_A/REFIO_B) allow independent system-level gain calibration per channel.
It integrates internal 2.5-V reference DACs with ±1-mV matching between channels and 10 ppm/°C drift, while aperture jitter is specified at 50 ps - critical for maintaining SFDR >105 dB in high-frequency acquisition. The device is fully specified over –40°C to +125°C and supports STANDBY and SPD low-power modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - delivers 65,536 distinct digital codes for high dynamic range in precision measurement. |
| Throughput Rate | 600 kSPS - enables real-time capture of signals up to ~250 kHz Nyquist bandwidth per channel. |
| INL (Max) | ±2.5 LSB - ensures monotonicity and <0.004% full-scale linearity error across temperature. |
| SNR | 89 dB (typ) - corresponds to ~14.8 effective bits at 2-kHz input, supporting high-fidelity signal reconstruction. |
| Aperture Jitter | 50 ps - limits sampling uncertainty to <0.05% of 600-kSPS clock period, preserving AC performance. |
| Reference Matching | ±1 mV (VREF_A vs VREF_B) - enables accurate differential gain calibration in dual-channel closed-loop systems. |
| Operating Temp | –40°C to +125°C - qualified for under-hood automotive, industrial motor drives, and grid-edge protection relays. |
Pinout & Package
TSSOP-16 (PW package), 5.00 mm × 4.40 mm body size, with exposed thermal pad recommended to be connected to PCB ground for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AINP_A / AINP_B | Analog input (positive) | Accepts single-ended or pseudo-differential positive inputs; full-scale range = 0 to 2×VREF when AVDD ≥ 2×VREF. |
| AINM_A / AINM_B | Analog input (negative) | Provides reference point for pseudo-differential mode; tied to GND for single-ended operation. |
| REFIO_A / REFIO_B | Analog I/O (reference) | Configurable as 2.5-V reference output or external reference input; supports independent channel calibration. |
| REFGND_A / REFGND_B | Analog ground (reference) | Separate reference ground pins per channel minimize crosstalk and improve INL matching. |
| SDO_A / SDO_B | Digital output (serial data) | Independent data outputs per channel enable time-aligned dual-channel readout without multiplexing delay. |
| SCLK / CS / SDI | Digital interface | Standard SPI-compatible interface; CS falling edge initiates conversion, SCLK clocks out 16-bit results per channel. |
| AVDD / DVDD / GND | Power supplies | Separated analog (5 V) and digital (3.3 V) rails reduce noise coupling; GND is digital ground only. |
Key Features
| Feature | Design Value |
|---|---|
| Dual simultaneous sampling | Eliminates inter-channel timing skew (<40 ps match), essential for vector-controlled motor drives and phase-sensitive power monitoring. |
| Pseudo-differential input architecture | Rejects common-mode noise on AINM lines while retaining single-ended simplicity - ideal for isolated current/voltage sensing front-ends. |
| Programmable internal reference | 2.5-V reference with ±1-mV A/B matching and 10 ppm/°C drift enables stable gain calibration without external components. |
| 32-clock serial interface mode | Guarantees complete 16-bit readout per channel within one frame, simplifying host controller firmware and reducing bus overhead. |
| STANDBY and SPD low-power modes | Reduces analog supply current to 2.5 mA (STANDBY) or 10–50 µA (SPD), extending uptime in battery-backed protection relay applications. |
Applications
| Motor Position Measurement | Optical Networking EDFA Control |
|---|---|
|
Use Scenario: High-resolution angular position feedback from dual-resolver or dual-encoder systems in servo motors. IC Role / Device Role / Timing Role: Simultaneous sampling of sine/cosine resolver outputs to compute absolute angle with sub-arcminute resolution. Use Value: 16-bit resolution and <40-ps inter-channel skew preserve encoder phase integrity, enabling <0.005° position accuracy at 600-kSPS update rate. |
Use Scenario: Real-time monitoring and closed-loop gain adjustment of Erbium-Doped Fiber Amplifiers in DWDM transceivers. IC Role / Device Role / Timing Role: Dual-channel acquisition of photodiode currents from input and output taps for fast, correlated gain error calculation. Use Value: Independent SDO_A/SDO_B outputs allow concurrent readout without pipeline delay, enabling <1-µs loop latency for transient suppression. |
| Three-Phase Power Quality Monitoring | Protection Relay Analog Front-End |
|
Use Scenario: Simultaneous voltage and current sampling across all three phases for harmonic analysis and RMS calculation. IC Role / Device Role / Timing Role: Paired channel acquisition (e.g., A-phase voltage + current) with matched gain/offset to maintain phase-angle fidelity. Use Value: ±2.5-LSB INL and 89-dB SNR ensure Class 0.2 metering accuracy per IEC 61000-4-30, even at 125°C ambient. |
Use Scenario: Fault detection in medium-voltage distribution networks using dual analog inputs for overcurrent and residual earth fault sensing. IC Role / Device Role / Timing Role: Simultaneous capture of phase currents and neutral current to compute zero-sequence components for ground-fault discrimination. Use Value: –100-dB THD and 105-dB SFDR suppress harmonic aliasing, enabling reliable 50/60-Hz fundamental detection amid switching noise. |
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 |
|---|---|---|---|
| ADS8354IPWR | 16-bit, fully-differential inputs, 93-dB SNR, 1-MSPS, WQFN-16 only - no TSSOP option. | Better SNR and speed but requires differential sensor interfaces; incompatible pinout and reference architecture. | Select for new designs needing higher AC performance and differential signaling; not drop-in for ADS8353IPW layouts. |
| ADS7853IPW | 14-bit resolution, 1-MSPS, same pinout/package, identical reference and interface architecture. | Lower resolution but higher throughput; maintains same PCB footprint and software driver compatibility. | Choose when 14-bit precision suffices and faster sampling is prioritized; direct pin-and-code replacement with minor INL/SNR trade-off. |
Compared with ADS8354IPWR, ADS8353IPW offers TSSOP-16 compatibility and pseudo-differential flexibility at lower SNR; compared with ADS7853IPW, it trades 2-bit resolution for superior DC linearity and 89-dB SNR - making it optimal for metrology-grade position and power quality systems.
Availability
ADS8353IPW 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 ADS8353IPW 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 signal chain solutions.
The ADSxx53 family - including ADS8353IPW - was designed specifically for high-reliability, simultaneous dual-channel acquisition in harsh industrial environments, emphasizing DC accuracy, inter-channel matching, and extended temperature operation.
FAQ
What is the maximum sample rate of the ADS8353IPW?
The ADS8353IPW achieves a maximum throughput of 600 kSPS in its standard 32-clock serial interface mode. This rate is maintained across the full –40°C to +125°C operating range with AVDD = 5 V and DVDD = 3.3 V. The device also supports a 16-clock mode for reduced interface timing constraints, though throughput remains fixed at 600 kSPS due to internal conversion architecture.
Does the ADS8353IPW support external reference inputs?
Yes, the ADS8353IPW supports external reference inputs via REFIO_A and REFIO_B pins. When an external reference voltage between 2.4 V and AVDD is applied, the internal 2.5-V reference is disabled. The device draws ~300 µA per reference input and requires a 10-µF ceramic capacitor at each REFIO pin for stability - as specified in the SBAS584B datasheet section 7.8.
What is the inter-channel timing skew specification for ADS8353IPW?
The ADS8353IPW guarantees inter-channel aperture delay matching of ≤40 ps (tA match) between Channel A and Channel B. This tight skew enables true simultaneous sampling required for vector control and phase-difference measurements. The specification is tested over temperature and process corners and is independent of external clock jitter or PCB layout asymmetry.
Can the ADS8353IPW operate with different supply voltages on AVDD and DVDD?
Yes, the ADS8353IPW supports independent analog and digital supplies: AVDD must be 4.5 V to 5.5 V (5 V nominal), while DVDD ranges from 1.65 V to 5.5 V (3.3 V typical). This separation reduces digital switching noise coupling into the analog path. The datasheet specifies that DVDD ≥ 2.3 V is required for standard logic thresholds, and level-shifting is unnecessary when both rails are within 3.3 V ±10%.
Is the ADS8353IPW pin-compatible with other devices in the ADSxx53 family?
Yes, the ADS8353IPW is fully pin-compatible with ADS7853IPW and ADS7253IPW in both TSSOP-16 (PW) and WQFN-16 (RTE) packages. All share identical pin functions, electrical interface behavior, and register mapping - enabling hardware reuse across 16-/14-/12-bit variants. However, resolution, INL, SNR, and throughput differ per part number, requiring firmware validation for functional equivalence.
ADS8353IPW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- 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:
- -
ADS8353IPW FAQ
1.How can I place an order for ADS8353IPW through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS8353IPW 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 ADS8353IPW reliable?
The price and inventory of ADS8353IPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS8353IPW is usually 5 days.
3.What payment methods are accepted for ADS8353IPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS8353IPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS8353IPW?
ADS8353IPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS8353IPW 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 ADS8353IPW?
For technical support, including ADS8353IPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS8353IPW requirements.
6.How does Aetrix verify that ADS8353IPW is sourced from the original manufacturer or authorized distributors?
All ADS8353IPW 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 ADS8353IPW meets industry standards.
7.What is the process for return or replacement of ADS8353IPW?
All ADS8353IPW units undergo pre-shipment inspection (PSI). If there is an issue with ADS8353IPW, 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 ADS8353IPW part is unused and in its original packaging.
Return procedure for ADS8353IPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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