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ADS1178IPAPR
Texas Instruments
IC ADC 16BIT SIGMA-DELTA 64HTQFP
2046 Pcs New Original In Stock
16 Bit Analog to Digital Converter 8 Input 1 Sigma-Delta 64-HTQFP (10x10)
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5.0 / 5.0
- (495 Ratings)
ADS1178IPAPR
Product Overview
1281568
DiGi Electronics Part Number
ADS1178IPAPR-DGManufacturer
Texas Instruments
ADS1178IPAPR
Description
IC ADC 16BIT SIGMA-DELTA 64HTQFPInventory
2046 Pcs New Original In Stock
16 Bit Analog to Digital Converter 8 Input 1 Sigma-Delta 64-HTQFP (10x10)
Quantity
Minimum 1
Minimum 1
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ADS1178IPAPR Technical Specifications
Category
Data Acquisition, Analog to Digital Converters (ADC)
Packaging
Cut Tape (CT) & Digi-Reel®
Series
-
Product Status
Active
Number of Bits
16
Sampling Rate (Per Second)
52k
Number of Inputs
8
Input Type
Differential, Single Ended
Data Interface
SPI
Configuration
ADC
Ratio - S/H:ADC
-
Number of A/D Converters
1
Architecture
Sigma-Delta
Reference Type
External
Voltage - Supply, Analog
5V
Voltage - Supply, Digital
1.65V ~ 1.95V
Features
Simultaneous Sampling
Operating Temperature
-40°C ~ 85°C
Package / Case
64-PowerTQFP
Supplier Device Package
64-HTQFP (10x10)
Mounting Type
Surface Mount
Base Product Number
ADS1178
Datasheet & Documents
Manufacturer Product Page
ADS1178IPAPR Specifications
HTML Datasheet
ADS1178IPAPR-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
TEXTISADS1178IPAPR
ADS1178IPAPRG4-DG
296-49529-6
ADS1178IPAPR-DG
296-49529-1
296-49529-2
2156-ADS1178IPAPR
ADS1178IPAPRG4
Standard Package
1,000
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
DiGi Electronics的出貨流程透明，讓我可以準時掌握貨物的動向。
de desembre 02, 2025
Das Tracking-System war sehr zuverlässig, was das Abholen des Pakets sehr stressfrei gemacht hat.
de desembre 02, 2025
I am happy with the quality and the after-sales help I received from DiGi Electronics.
de desembre 02, 2025
Their staff is attentive, ensuring each purchase process is smooth and satisfactory.
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Frequently Asked Questions (FAQ)
What are the key design-in risks when using the ADS1178IPAPR in a mixed-signal PCB with high-speed digital traces?
When integrating the ADS1178IPAPR into a mixed-signal PCB, a major risk is noise coupling from high-speed digital lines into the analog inputs due to its 16-bit sigma-delta architecture, which is highly sensitive to power and ground disturbances. To mitigate this, ensure the ADS1178IPAPR is placed over a solid ground plane, use separate analog and digital supply regulators (e.g., LDOs), and route digital traces perpendicular to analog traces if they must cross. Additionally, decouple the AVDD pin with a 10µF tantalum and 100nF ceramic capacitor close to the pin, and consider using a split ground plane with a single tie point to avoid ground loops that could degrade the ADC’s effective resolution.
Can the ADS1178IPAPR replace the ADS1278 in a simultaneous sampling data acquisition system without redesigning the signal chain?
Replacing the ADS1278 with the ADS1178IPAPR in a simultaneous sampling system is feasible in terms of timing and pin compatibility, but with critical trade-offs: the ADS1178IPAPR offers 16-bit resolution vs. the ADS1278’s 24-bit, reducing dynamic range for low-level sensor signals. Also, the ADS1178IPAPR requires an external voltage reference, whereas the ADS1278 has an internal reference, so your design must now include a precision external reference like the REF5050. Ensure your signal conditioning (gain, filtering) is recalibrated to match the reduced resolution and verify that noise levels remain below 1 LSB to avoid performance degradation.
How does the dual-supply requirement (5V analog, 1.65–1.95V digital) of the ADS1178IPAPR affect FPGA or microcontroller interfacing in portable designs?
The ADS1178IPAPR’s digital I/O voltage range of 1.65V to 1.95V creates interface challenges with FPGAs or MCUs running at 3.3V or 1.8V logic levels. If your host controller operates at 1.8V, verify that its SPI outputs are high enough to meet the ADS1178IPAPR’s VIH minimum (70% of 1.65V ≈ 1.16V), which is usually acceptable. However, 3.3V microcontrollers cannot directly drive the ADS1178IPAPR inputs without level shifters (e.g., TXS0108E), as exceeding the absolute maximum 2.0V on DVDD-supplied pins may damage the device. Use bidirectional voltage translators and ensure the 1.65–1.95V digital rail is stable and low-noise to prevent SPI communication errors.
What reliability concerns should be addressed when deploying the ADS1178IPAPR in an industrial environment operating near 85°C?
Operating the ADS1178IPAPR at its maximum rated temperature of 85°C increases risks of long-term parametric drift and thermal-induced noise on the analog inputs. To ensure reliability, limit self-heating by minimizing the sampling rate when full bandwidth isn’t needed, and provide adequate PCB copper pour for thermal dissipation under the exposed thermal pad. Also, consider the MSL 3 rating—store the ADS1178IPAPR in dry packaging before assembly and complete reflow within 168 hours after exposure to ambient to prevent 'popcorn' defects. Pair it with industrial-grade external components (e.g., reference, filters) to avoid becoming the weakest link in the signal chain.
How does the external reference requirement of the ADS1178IPAPR impact accuracy in precision weigh-scale applications compared to internal-reference ADCs like the AD7190?
The ADS1178IPAPR’s need for an external reference introduces additional error sources in precision weigh-scale applications—such as drift, noise, and power sensitivity—compared to integrated-reference ADCs like the AD7190. To match or exceed AD7190-level performance, drive the ADS1178IPAPR with a low-drift (<10ppm/°C), low-noise (<8µVpp) reference such as the ADR445. Also, ensure reference output impedance is low at the ADC’s modulator frequency; use buffer op-amps if necessary. While this adds cost and board space, it allows optimization for specific full-scale ranges, giving the ADS1178IPAPR greater flexibility if calibrated and filtered appropriately.
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ADS1178IPAPR CAD Models
Texas Instruments ADS1178IPAPR PCB symbols & footprints
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