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ADS1241E/1K
Texas Instruments
IC ADC 24BIT SIGMA-DELTA 28SSOP
2455 Pcs New Original In Stock
24 Bit Analog to Digital Converter 8 Input 1 Sigma-Delta 28-SSOP
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5.0 / 5.0
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ADS1241E/1K
Product Overview
1260555
DiGi Electronics Part Number
ADS1241E/1K-DGManufacturer
Texas Instruments
ADS1241E/1K
Description
IC ADC 24BIT SIGMA-DELTA 28SSOPInventory
2455 Pcs New Original In Stock
24 Bit Analog to Digital Converter 8 Input 1 Sigma-Delta 28-SSOP
CAD Models - PCB Symbols & Footprints
Quantity
Minimum 1
Minimum 1
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ADS1241E/1K Technical Specifications
Category
Data Acquisition, Analog to Digital Converters (ADC)
Packaging
Cut Tape (CT) & Digi-Reel®
Series
-
Product Status
Active
Number of Bits
24
Sampling Rate (Per Second)
15
Number of Inputs
8
Input Type
Differential, Single Ended
Data Interface
SPI
Configuration
MUX-PGA-ADC
Ratio - S/H:ADC
-
Number of A/D Converters
1
Architecture
Sigma-Delta
Reference Type
External
Voltage - Supply, Analog
2.7V ~ 3.3V, 5V
Voltage - Supply, Digital
2.7V ~ 5.25V
Features
PGA
Operating Temperature
-40°C ~ 85°C
Package / Case
28-SSOP (0.209", 5.30mm Width)
Supplier Device Package
28-SSOP
Mounting Type
Surface Mount
Base Product Number
ADS1241
Datasheet & Documents
Manufacturer Product Page
ADS1241E/1K Specifications
HTML Datasheet
ADS1241E/1K-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
296-25895-1
296-25895-2
ADS1241E/1K-DG
296-25895-6
ADS1241E1K
Standard Package
1,000
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
リーズナブルな価格ながらも充実したサポート体制に満足しています。
Dec 02, 2025
The logistics service was exceptional; my order arrived exactly on time.
Dec 02, 2025
Stock accuracy and management are exemplary at DiGi Electronics.
Dec 02, 2025
Their customer support team is approachable and effective, making post-purchase communication easy.
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Frequently Asked Questions (FAQ)
Can the ADS1241E/1K be safely used in a 5V-only industrial sensor system without risking damage to the analog front-end when measuring ±10V differential signals?
The ADS1241E/1K supports a 5V analog supply (AVDD) but has a maximum absolute input voltage limit of AVDD + 0.3V. Directly applying ±10V differential signals will severely damage the device. To safely interface high-voltage signals, you must use external attenuating resistor networks or isolation amplifiers (e.g., TI ISO122) to scale inputs within the ±(AVDD – 0.3V) range. Always include overvoltage protection diodes and consider common-mode voltage limits—failure to do so risks permanent damage, especially during transient events or miswiring in field deployments.
What are the key reliability risks when replacing the ADS1241E/1K with the ADS1248IPWR in a battery-powered environmental monitoring node operating at -30°C?
While the ADS1248IPWR offers higher channel count and similar resolution, it draws significantly more quiescent current (2.5 mA vs. 0.8 mA typical for ADS1241E/1K), reducing battery life in always-on applications. Additionally, the ADS1248’s performance degrades more noticeably near -40°C due to PGA offset drift, whereas the ADS1241E/1K maintains better stability across its full temperature range. If low-power and cold-start reliability are critical, stick with the ADS1241E/1K; otherwise, recalibrate your power budget and thermal compensation algorithm if switching.
How should I handle ground return paths when using the ADS1241E/1K in a mixed-signal PCB with high-current digital sections to avoid noise coupling into the 24-bit ADC readings?
Use a star-ground topology with a single-point connection between analog and digital grounds near the ADS1241E/1K’s AGND pin. Keep the analog ground plane isolated under the ADC and avoid routing high-speed digital traces (e.g., SPI clocks) beneath the device. Place decoupling capacitors (100 nF ceramic + 10 µF tantalum) as close as possible to AVDD and DVDD pins. Poor grounding can introduce microvolt-level noise that corrupts LSBs—this is especially critical given the ADS1241E/1K’s high gain (up to 128x PGA), which amplifies ground bounce and switching noise from nearby logic.
Is it safe to share the same external voltage reference between the ADS1241E/1K and a precision DAC like the DAC8568 without degrading ADC linearity in a closed-loop control system?
Sharing a reference is possible but introduces risk if not carefully managed. The ADS1241E/1K requires a low-impedance, stable reference (recommended < 10 Ω output impedance). If the DAC8568 draws dynamic current from the shared reference, it can cause voltage droop or noise that directly impacts ADC INL and DNL. Use a dedicated reference buffer (e.g., REF5025 + OPA333) for the ADS1241E/1K, or ensure the reference can source/sink the combined load with < 100 µV variation. Always verify performance with worst-case DAC switching patterns during validation.
Can the ADS1241E/1K’s internal PGA be reliably used at maximum gain (128x) with a 3.3V supply when measuring thermocouple signals in an electrically noisy furnace environment?
Using the PGA at 128x with a 3.3V supply severely limits the input range to approximately ±25.6 mV (3.3V / 128), leaving minimal headroom for noise or offset drift. In high-noise environments like furnaces, electromagnetic interference can easily saturate the PGA or reduce effective resolution. Mitigate this by adding an external low-pass filter before the input, using twisted-pair wiring with shielding, and possibly reducing PGA gain while adding a higher-resolution external amplifier stage. Over-reliance on maximum PGA gain often leads to unstable readings under real-world EMI conditions—validate with conducted immunity testing per IEC 61000-4-6.
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.
ADS1241E/1K CAD Models
Texas Instruments ADS1241E/1K PCB symbols & footprints
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