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ADS8328IBRSAT
Texas Instruments
IC ADC 16BIT SAR 16QFN
1446 Pcs New Original In Stock
16 Bit Analog to Digital Converter 2 Input 1 SAR 16-QFN (4x4)
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5.0 / 5.0
- (487 Ratings)
ADS8328IBRSAT
Product Overview
1263901
DiGi Electronics Part Number
ADS8328IBRSAT-DGManufacturer
Texas Instruments
ADS8328IBRSAT
Description
IC ADC 16BIT SAR 16QFNInventory
1446 Pcs New Original In Stock
16 Bit Analog to Digital Converter 2 Input 1 SAR 16-QFN (4x4)
Quantity
Minimum 1
Minimum 1
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ADS8328IBRSAT Technical Specifications
Category
Data Acquisition, Analog to Digital Converters (ADC)
Packaging
-
Series
-
Product Status
Active
Number of Bits
16
Sampling Rate (Per Second)
500k
Number of Inputs
2
Input Type
Differential, Single Ended
Data Interface
SPI
Configuration
S/H-ADC
Ratio - S/H:ADC
1:1
Number of A/D Converters
1
Architecture
SAR
Reference Type
External
Voltage - Supply, Analog
5V
Voltage - Supply, Digital
1.65V ~ 5.5V
Features
-
Operating Temperature
-40°C ~ 85°C
Package / Case
16-VQFN Exposed Pad
Supplier Device Package
16-QFN (4x4)
Mounting Type
Surface Mount
Base Product Number
ADS8328
Datasheet & Documents
Manufacturer Product Page
ADS8328IBRSAT Specifications
HTML Datasheet
ADS8328IBRSAT-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
296-21532-6
-296-21532-1
-ADS8328IBRSATG4-NDR
-ADS8328IBRSATG4
-296-21532-1-DG
296-21532-1
-ADS8328IBRSAT-NDR
296-21532-2
ADS8328IBRSATG4
ADS8328IBRSATG4-DG
Standard Package
250
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Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
I saved a lot with their prices, and the timely delivery made it a perfect shopping experience.
de desembre 02, 2025
I've purchased multiple times from Di Digi Electronics, and each time the quality remains consistently high.
de desembre 02, 2025
Fast shipping combined with friendly support made this a highly positive experience.
de desembre 02, 2025
Support team is always ready to assist with any after-sales concerns, demonstrating excellent service.
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Frequently Asked Questions (FAQ)
What are the critical layout considerations when designing a PCB for the ADS8328IBRSAT to maintain 16-bit accuracy in high-noise industrial environments?
When integrating the ADS8328IBRSAT, prioritize a solid analog ground plane separated from digital return paths, place the external reference voltage buffer within 5 mm of the REF pin, and route SPI signals away from analog inputs with guard traces tied to AGND. Use a low-impedance power distribution network with 100 nF and 10 µF decoupling capacitors directly at the AVDD and DVDD pins. Avoid vias in reference or input signal paths, and ensure the exposed thermal pad is properly soldered to a grounded copper pour for both thermal stability and noise shielding—critical for maintaining SNR and avoiding code transitions due to ground bounce or reference instability.
Can the ADS8328IBRSAT safely replace the ADS8320IBDG4 in an existing 3.3V system without hardware modifications?
The ADS8328IBRSAT is not a direct drop-in replacement for the ADS8320IBDG4 due to key architectural differences: while both are 16-bit SAR ADCs, the ADS8328IBRSAT requires an external reference and supports only SPI, whereas the ADS8320IBDG4 includes an internal reference and supports both SPI and I²C. Additionally, the ADS8328IBRSAT’s analog supply must be 5V for full performance, even if the digital interface operates at 3.3V. Replacing the ADS8320IBDG4 with the ADS8328IBRSAT would require adding an external precision reference (e.g., REF5025), ensuring 5V analog supply availability, and verifying SPI timing compatibility—making it a redesign effort rather than a simple substitution.
How does the ADS8328IBRSAT perform under temperature cycling from -40°C to 85°C, and what calibration strategies are recommended for precision measurement systems?
The ADS8328IBRSAT is rated for operation from -40°C to 85°C, but its offset and gain drift (not specified in the datasheet) can impact system accuracy over temperature. In precision applications like strain-gauge or RTD measurement, perform a two-point calibration at temperature extremes during production to characterize drift. Use a stable external reference with low temperature coefficient (e.g., <5 ppm/°C) and consider periodic system-level autocalibration using known input voltages. Without calibration, uncorrected drift may cause up to several LSB errors across the full temperature range, especially in gain-sensitive configurations—making factory or runtime calibration essential for maintaining 16-bit effective resolution.
What are the risks of using a single 5V supply for both AVDD and DVDD on the ADS8328IBRSAT in a mixed-signal design, and how can digital noise coupling be mitigated?
Using a shared 5V supply for both AVDD and DVDD on the ADS8328IBRSAT increases the risk of digital switching noise coupling into the analog front end through the power rail, potentially degrading SNR and increasing INL errors. To mitigate this, use separate LDOs or ferrite beads to isolate analog and digital supplies, even if both are nominally 5V. Implement star grounding at the ADC and ensure digital return currents do not flow through the analog ground plane. Additionally, minimize simultaneous switching on SPI lines during critical conversion phases by synchronizing communication with the BUSY signal (if used) or inserting quiet periods—this reduces ground bounce and improves measurement integrity in high-resolution applications.
Is the ADS8328IBRSAT suitable for battery-powered data logging systems requiring low power and long-term stability, and how does it compare to the ADS8860IDGSR?
The ADS8328IBRSAT is less ideal for ultra-low-power battery applications compared to the ADS8860IDGSR due to its higher active current (~2.5 mA vs. ~750 µA) and requirement for an external reference, which adds power overhead. While the ADS8328IBRSAT offers 500 kSPS throughput beneficial for burst-mode logging, its continuous power draw limits runtime in always-on systems. The ADS8860IDGSR, with integrated reference and true micropower operation, is better suited for long-term, low-duty-cycle logging. However, if your system already has a 5V rail and requires higher sampling rates with differential inputs, the ADS8328IBRSAT can still be viable—just add a low-quiescent-current reference (e.g., REF3425) and implement aggressive power gating between conversions to extend battery life.
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ADS8328IBRSAT CAD Models
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