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ADS8401IPFBT
Texas Instruments
IC ADC 16BIT SAR 48TQFP
1197 Pcs New Original In Stock
16 Bit Analog to Digital Converter Input 1 48-TQFP (7x7)
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5.0 / 5.0
- (421 Ratings)
ADS8401IPFBT
Product Overview
1392761
DiGi Electronics Part Number
ADS8401IPFBT-DGManufacturer
Texas Instruments
ADS8401IPFBT
Description
IC ADC 16BIT SAR 48TQFPInventory
1197 Pcs New Original In Stock
16 Bit Analog to Digital Converter Input 1 48-TQFP (7x7)
Quantity
Minimum 1
Minimum 1
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ADS8401IPFBT Technical Specifications
Category
Data Acquisition, Analog to Digital Converters (ADC)
Packaging
Cut Tape (CT)
Series
-
Product Status
Obsolete
Number of Bits
16
Sampling Rate (Per Second)
1.25M
Data Interface
Parallel
Number of A/D Converters
1
Operating Temperature
-40°C ~ 85°C
Package / Case
48-TQFP
Supplier Device Package
48-TQFP (7x7)
Mounting Type
Surface Mount
Base Product Number
ADS8401
Datasheet & Documents
HTML Datasheet
ADS8401IPFBT-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
2 (1 Year)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
296-14068-1
-296-14068-1-DG
296-14068-2
-296-14068-1-NDR
-296-14068-1
296-14068-1-NDR
TEXTISADS8401IPFBT
296-14068-6
-ADS8401IPFBT-NDR
-ADS8401IPFBTG4
-ADS8401IPFBTG4-NDR
296-14068-2-NDR
296-14068-6-NDR
2156-ADS8401IPFBT-TITR
Standard Package
250
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
가격이 너무 좋아서 부담 없이 이용할 수 있고, 서비스도 훌륭합니다.
de desembre 02, 2025
每次配送都準時到達，彰顯他們的物流實力。
de desembre 02, 2025
J’ai trouvé la navigation très fluide, même avec plusieurs fenêtres ouvertes.
de desembre 02, 2025
Their post-purchase support demonstrates real commitment.
de desembre 02, 2025
I've saved a lot by choosing DiGi Electronics, without compromising on quality.
de desembre 02, 2025
DiGi Electronics' customer support always exceeds our expectations in efficiency and tone.
de desembre 02, 2025
DiGi Electronics' wide offerings and transparent pricing policies inspire confidence.
de desembre 02, 2025
Their after-sales team goes above and beyond to ensure customer needs are met promptly.
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Frequently Asked Questions (FAQ)
What are the key reliability and obsolescence risks when designing in the ADS8401IPFBT for a new industrial data acquisition system?
The ADS8401IPFBT is marked as obsolete by Texas Instruments, which means it is no longer recommended for new designs and may face future supply chain disruptions. For long-life industrial systems—especially those requiring 10+ years of availability—this poses a significant redesign risk. Additionally, while the device is RoHS3 compliant and has a 1-year moisture sensitivity level (MSL 2), its obsolescence status limits access to updated documentation and technical support. We recommend qualifying a modern drop-in or software-compatible replacement such as the ADS8860IPW (16-bit, 1.25 MSPS, parallel interface, 48-TQFP) early in the design phase to mitigate lifecycle and sourcing risks.
Can the ADS8401IPFBT be safely replaced with the ADS7866IPW in a high-speed motor control application without firmware changes?
No, the ADS7866IPW is not a direct replacement for the ADS8401IPFBT despite both being 16-bit SAR ADCs from TI. The ADS8401IPFBT uses a parallel interface and operates at 1.25 MSPS, while the ADS7866IPW uses a serial SPI interface and runs at 200 kSPS—making it unsuitable for high-speed motor control loops requiring low-latency, high-throughput sampling. Replacing the ADS8401IPFBT with the ADS7866IPW would require significant firmware rework, timing adjustments, and likely degrade system performance. Instead, consider pin-compatible or interface-compatible successors like the ADS8860IPW, which maintains parallel output and similar timing characteristics.
How should I handle thermal management and PCB layout for the ADS8401IPFBT in a compact 48-TQFP (7x7) design to avoid ADC performance degradation?
The ADS8401IPFBT’s 48-TQFP (7x7) package has a thermal pad that must be properly grounded and thermally connected to a solid ground plane to maintain stable operation across its -40°C to 85°C range. Poor thermal design can lead to localized heating, increasing internal reference drift and degrading SNR. Ensure the exposed pad is soldered to a large ground pour with multiple thermal vias, and avoid routing high-speed digital traces beneath the ADC to minimize coupling noise. Also, place decoupling capacitors (100 nF ceramic + 10 µF tantalum) as close as possible to the AVDD and DVDD pins to suppress supply transients that could affect conversion accuracy.
What are the critical signal integrity considerations when interfacing the ADS8401IPFBT’s parallel data bus with an FPGA in a noisy industrial environment?
When connecting the ADS8401IPFBT’s 16-bit parallel output to an FPGA, signal integrity is paramount due to the 1.25 MSPS data rate and susceptibility to ground bounce and crosstalk. Use controlled-impedance routing with matched trace lengths (±50 mil tolerance) for data and control lines (e.g., BUSY, CONVST) to prevent skew-induced read errors. Implement a solid ground plane beneath the bus and consider series termination resistors (22–33 Ω) near the ADC to dampen reflections. In high-noise environments, isolate the analog front-end with a split ground plane and use differential signaling or digital isolators (e.g., ISO7740) between the ADC and FPGA if long traces are unavoidable.
Is it safe to operate the ADS8401IPFBT near its maximum sampling rate in a high-temperature (80°C) enclosure without active cooling?
Operating the ADS8401IPFBT at 1.25 MSPS in an 80°C ambient environment approaches the upper limit of its specified operating range and increases the risk of thermal runaway and parametric drift. While the device is rated for -40°C to 85°C, sustained operation near 85°C can reduce long-term reliability and increase INL/DNL errors due to internal reference instability. Without active cooling, ensure adequate airflow and thermal vias to dissipate heat from the TQFP package. For mission-critical applications, derate the sampling rate slightly (e.g., to 1 MSPS) or migrate to a more thermally robust alternative like the ADS8881IPW, which offers better thermal performance and is actively supported.
Quality Assurance (QC)
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ADS8401IPFBT CAD Models
Texas Instruments ADS8401IPFBT PCB symbols & footprints
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