Counterfeit and defect prevention
Visual and packaging inspection
Electrical performance verification
Service Email:
[email protected]
>
ADS8321E/250
Texas Instruments
IC ADC 16BIT SAR 8VSSOP
1698 Pcs New Original In Stock
16 Bit Analog to Digital Converter 1 Input 1 SAR 8-VSSOP
Request Quote
(Ships tomorrow)
*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (46 Ratings)
ADS8321E/250
Product Overview
1255429
DiGi Electronics Part Number
ADS8321E/250-DGManufacturer
Texas Instruments
ADS8321E/250
Description
IC ADC 16BIT SAR 8VSSOPInventory
1698 Pcs New Original In Stock
16 Bit Analog to Digital Converter 1 Input 1 SAR 8-VSSOP
CAD Models - PCB Symbols & Footprints
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
How to Order
Shipping & Delivery
Quality Assurance
365 - Day Quality Guarantee - Every part fully backed.
90 - Day Refund or Exchange - Defective parts? No hassle.
Limited Stock, Order Now - Get reliable parts without worry.
Global Shipping & Secure Packaging
Worldwide Delivery in 3-5 Business Days
100% ESD Anti-Static Packaging
Real-Time Tracking for Every Order
Secure & Flexible Payment
Credit Card, VISA, MasterCard, PayPal, Western Union, Telegraphic Transfer(T/T) and more
All payments encrypted for security
ADS8321E/250 Technical Specifications
Category
Data Acquisition, Analog to Digital Converters (ADC)
Packaging
Cut Tape (CT) & Digi-Reel®
Series
microPOWER™
Product Status
Active
Number of Bits
16
Sampling Rate (Per Second)
100k
Number of Inputs
1
Input Type
Differential, Pseudo-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
5V
Features
-
Operating Temperature
-40°C ~ 85°C
Package / Case
8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package
8-VSSOP
Mounting Type
Surface Mount
Base Product Number
ADS8321
Datasheet & Documents
Manufacturer Product Page
ADS8321E/250 Specifications
HTML Datasheet
ADS8321E/250-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
-ADS8321ECT-DG
-ADS8321ECT-NDR
ADS8321ETR
-ADS8321E/250G4-NDR
-ADS8321E/250G4
ADS8321E250
ADS8321ECT-NDR
ADS8321EDKR
ADS8321EDKR-NDR
ADS8321ETR-NDR
ADS8321ECT
-ADS8321E/250-NDR
-ADS8321ECT
Standard Package
250
Alternative Parts
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
Je suis convaincu par la qualité constante des produits. Chaque achat est une garantie de fiabilité.
Dec 02, 2025
I trust their support team to assist promptly whenever I need help.
Dec 02, 2025
I am always impressed by the durability and reliability of DiGi Electronics' offerings.
Dec 02, 2025
Excellent packaging prevented any damage during transit, demonstrating great attention to detail.
Dec 02, 2025
DiGi Electronics excels at delivering quality and speed simultaneously.
Dec 02, 2025
Quick response and fast delivery made my purchase worry-free.
Publish Evalution
Evalution Message
Please enter your review message.
Please post honest comments and do not post ilegal comments.
Frequently Asked Questions (FAQ)
What are the key design-in risks when using the ADS8321E/250 in a high-noise industrial environment with long analog traces?
When integrating the ADS8321E/250 in noisy environments, long analog input traces can introduce EMI that degrades the 16-bit accuracy of the SAR ADC. Since the ADS8321E/250 relies on an external reference and has no integrated driver, signal integrity is highly dependent on PCB layout. To mitigate risk, use shielded traces or twisted-pair routing for differential inputs, place a low-pass RC filter (e.g., 10Ω + 10nF) close to the input pins, and avoid routing near digital switching nodes. Additionally, ensure a solid ground plane and minimize loop area to preserve SNR and prevent conversion errors at the full 100kSPS rate.
How does the external reference requirement of the ADS8321E/250 impact system accuracy and what voltage references are recommended for stable operation?
The ADS8321E/250 uses an external reference, making accuracy directly dependent on reference stability, noise, and drift. Using a noisy or unregulated reference like a resistive divider from VCC can result in gain errors and reduced effective resolution. For reliable performance, pair the ADS8321E/250 with low-noise, high-precision references such as the REF5025 (2.5V) or LM4140AIZ-4.096 (4.096V), which offer <10ppm/°C drift and <30µVpp noise. Also, bypass the REF pin with a 10µF tantalum and 0.1µF ceramic in parallel to minimize dynamic impedance effects during sampling.
Can the ADS8321E/250 replace the LTC2309 in an existing 5V measurement system, and what are the key interface and performance trade-offs?
Replacing the LTC2309 with the ADS8321E/250 in a 5V system is feasible, but with important trade-offs. The ADS8321E/250 offers higher 16-bit resolution vs. the LTC2309's 12-bit, enabling finer resolution for precision sensing. However, the LTC2309 includes an internal I2C interface and input buffer, while the ADS8321E/250 requires SPI with careful timing control and no internal driver—increasing external component count. Also, the ADS8321E/250 has a faster 100kSPS rate, but demands tighter control of CS-to-CLK timing and external reference design. Verify timing margins in your MCU’s SPI peripheral to ensure reliable operation with the ADS8321E/250.
What are the reliability concerns when operating the ADS8321E/250 at 5V supply near the upper temperature limit of 85°C?
Running the ADS8321E/250 at 5V near 85°C increases thermal stress, especially in enclosed or passively cooled systems. Although the device is rated for -40°C to 85°C, prolonged high-temperature operation can accelerate parametric drift and increase internal die temperature beyond ambient due to internal power dissipation during conversion cycles. To improve reliability, limit the average sample rate below 50kSPS when possible, ensure adequate PCB copper pour for heat dissipation, and avoid stacking boards that restrict airflow. Also, monitor internal system temperature and apply derating principles—considering 75°C as a practical upper ambient limit for long-term operation.
What are the critical timing constraints for SPI communication with the ADS8321E/250 to prevent data corruption in microcontroller-based designs?
Reliable SPI communication with the ADS8321E/250 requires strict adherence to timing specifications, especially tDIS (data valid after CS falling) and tCONV (conversion time). After CS goes low, the host must wait at least 10ns before clocking out data, and the conversion time (10µs max at 100kSPS) must be fully allowed before initiating readout. Microcontrollers with slow or non-programmable SPI delays (e.g., some STM32 or Arduino implementations) may violate these, leading to invalid data. Use a 50Ω series resistor on the SCLK line to damp ringing, and consider bit-banging with GPIOs for precise control if hardware SPI lacks sufficient timing granularity. Always validate timing on the scope with real loads.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
ADS8321E/250 CAD Models
Texas Instruments ADS8321E/250 PCB symbols & footprints
productDetail
