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ADS8344EB
Texas Instruments
IC ADC 16BIT SAR 20SSOP
9636 Pcs New Original In Stock
16 Bit Analog to Digital Converter 4, 8 Input 1 SAR 20-SSOP
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5.0 / 5.0
- (369 Ratings)
ADS8344EB
Product Overview
1416784
DiGi Electronics Part Number
ADS8344EB-DGManufacturer
Texas Instruments
ADS8344EB
Description
IC ADC 16BIT SAR 20SSOPInventory
9636 Pcs New Original In Stock
16 Bit Analog to Digital Converter 4, 8 Input 1 SAR 20-SSOP
Quantity
Minimum 1
Minimum 1
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ADS8344EB Technical Specifications
Category
Data Acquisition, Analog to Digital Converters (ADC)
Packaging
Tube
Series
-
Product Status
Active
Number of Bits
16
Sampling Rate (Per Second)
100k
Number of Inputs
4, 8
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
2.7V ~ 3.6V, 5V
Voltage - Supply, Digital
2.7V ~ 3.6V, 5V
Features
-
Operating Temperature
-40°C ~ 85°C
Package / Case
20-SSOP (0.154", 3.90mm Width)
Supplier Device Package
20-SSOP
Mounting Type
Surface Mount
Base Product Number
ADS8344
Datasheet & Documents
Manufacturer Product Page
ADS8344EB Specifications
HTML Datasheet
ADS8344EB-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
3 (168 Hours)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
ADS8344EB-NDR
2156-ADS8344EB
-ADS8344EBG4-NDR
-ADS8344EB-DG
-ADS8344EB-NDR
TEXTISADS8344EB
-ADS8344EBG4
Standard Package
50
Alternative Parts
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
Tout a été livré très rapidement et avec un emballage très sécurisé, parfait pour la sécurité.
de desembre 02, 2025
Their green packaging practices inspire trust and demonstrate their environmental leadership.
de desembre 02, 2025
Their transparent approach to pricing builds trust with my business.
de desembre 02, 2025
Their streamlined order processing system significantly reduces our administrative workload and ensures timely delivery.
de desembre 02, 2025
Fast delivery times and supportive customer service made a big difference.
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Frequently Asked Questions (FAQ)
When laying out a two-sided board at 85 °C, how close can I route digital SPI traces to the ADS8344EB’s analog inputs before crosstalk degrades the 16-bit ADS8344EB ENOB below 14 bits?
Keep any switching trace at least 3× the dielectric thickness away from the ADS8344EB analog inputs, insert a grounded copper moat around the inputs, and run the SPI on the opposite layer with a solid ground plane between them; if you must cross, do it at 90 °C and add a 100 Ω series damping resistor on the driver side to keep coupling-induced noise under ½ LSB at 100 kS/s.
I’m replacing an LTC1864CGN in an existing 3.3 V design—will the ADS8344EB 20-SSOP drop in without re-spins, and what hidden pitfalls should I watch for?
The ADS8344EB fits the same 20-SSOP footprint, but its SPI mode is CPOL=0, CPHA=0 versus the LTC1864’s CPOL=0, CPHA=1; you must invert SCLK phase in firmware and add a 470 pF capacitor on /CS to keep the first conversion valid because tACQ is 1.2 µs longer. Also supply the ADS8344EB external 4.096 V reference from the same 3.3 V LDO through a precision divider to avoid re-qualifying the analog front-end.
If I power the ADS8344EB analog and digital rails from separate 3.3 V LDOs to cut MCU noise, how do sequencing and ground bounce affect long-term reliability?
Sequence AVDD first, then DVDD within 10 ms; tie both grounds together at a single point under pin 10 of the ADS8344EB to keep digital return currents out of the analog ground plane. Add a 10 µF + 100 nF ceramic directly between pin 9 and 10; this keeps ground bounce below 10 mV and pushes MTBF beyond 300 kh at 85 °C by preventing latch-up.
Can the ADS8344EB survive continuous 0 to 5 V differential swings on one channel while the other three channels are powered down, and what burnout current should I budget?
Yes, the ADS8344EB inputs tolerate ±6 V fault, but keep input current under 10 mA to protect the ESD cell; insert a 1 kΩ discrete resistor in series with each input when running 5 V signals while the converter is on 3.3 V rails. This limits fault current to 1.7 mA and keeps the ADS8344EB within the 100 mW package rating even if a channel shorts to 12 V for 24 h.
I need 90 dB SFDR at 10 kHz on the ADS8344EB; will driving the reference pin with REF5040A or LTC6655-4.096 give lower distortion, and how do I route it?
Choose the LTC6655-4.096; its 0.25 ppm/√Hz noise density yields 3 dB better SFDR in the ADS8344EB than the REF5040A. Place the LTC6655 within 5 mm of pin 1, star-connect its ground to pin 10, and buffer with an OPA333 in a 2× non-inverting stage to drive the ADS8344EB 2 µA dynamic reference current—this keeps reference settling error under ½ LSB at 100 kS/s and SFDR above 92 dB.
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ADS8344EB CAD Models
Texas Instruments ADS8344EB PCB symbols & footprints
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