THS1041CDW Equivalent & Substitute Parts

Part Overview

The THS1041CDW is a 10-bit pipelined analog-to-digital converter manufactured by Texas Instruments, designed for single-channel data acquisition applications. It features a 40 MHz sampling rate with differential and single-ended input capability, housed in a 28-SOIC surface mount package. The device operates with 3V to 3.6V supply voltage for both analog and digital domains.

This part is classified as obsolete. Identifying equivalent and substitute components is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this ADC architecture.

Key Parameters

Parameter	Value
Manufacturer Part Number	THS1041CDW
Manufacturer	Texas Instruments
Number of Bits	10
Sampling Rate	40 MHz
Number of Inputs	1
Input Type	Differential, Single Ended
Architecture	Pipelined
Data Interface	Parallel
Voltage - Supply, Analog	3V ~ 3.6V
Voltage - Supply, Digital	3V ~ 3.6V
Operating Temperature	0°C ~ 70°C
Package / Case	28-SOIC (0.295", 7.50mm Width)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the THS1041CDW is determined by the following core parameters:

Resolution: 10-bit conversion capability
Sampling Rate: 40 MHz minimum throughput
Input Configuration: Support for differential and single-ended inputs
Architecture: Pipelined ADC topology
Data Interface: Parallel output
Supply Voltage Compatibility: Analog and digital supply ranges
Package Type: Surface mount compatibility
Compliance: ROHS3 compliance and REACH unaffected status

The ADC10040CIMTX/NOPB meets these core functional requirements while offering extended operating temperature range and improved supply voltage flexibility. Both devices share identical resolution, sampling rate, input type, architecture, and data interface specifications. The primary differences are packaging format (28-TSSOP versus 28-SOIC), supply voltage ranges, and operating temperature specifications.

Parameter Comparison

Parameter	THS1041CDW	ADC10040CIMTX/NOPB
Manufacturer	Texas Instruments	Texas Instruments
Number of Bits	10	10
Sampling Rate (Per Second)	40M	40M
Number of Inputs	1	1
Input Type	Differential, Single Ended	Differential, Single Ended
Data Interface	Parallel	Parallel
Architecture	Pipelined	Pipelined
Reference Type	External, Internal	External, Internal
Number of A/D Converters	1	1
Voltage - Supply, Analog	3V ~ 3.6V	2.7V ~ 3.6V
Voltage - Supply, Digital	3V ~ 3.6V	2.5V ~ 3.6V
Operating Temperature	0°C ~ 70°C	-40°C ~ 85°C
Package / Case	28-SOIC (0.295", 7.50mm Width)	28-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount	Surface Mount
Product Status	Obsolete	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

The ADC10040CIMTX/NOPB is the manufacturer-recommended substitute for the obsolete THS1041CDW. Both devices maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for new designs and production continuity.

The substitute part offers extended operating temperature range (-40°C to 85°C versus 0°C to 70°C) and broader supply voltage specifications (2.7V to 3.6V analog, 2.5V to 3.6V digital versus 3V to 3.6V for both domains). These expanded specifications provide greater design flexibility and environmental robustness.

The ADC10040CIMTX/NOPB is supplied in Tape & Reel packaging with active product status, ensuring long-term availability and supply chain stability compared to the obsolete THS1041CDW.

Package format differs between the two devices: the original uses 28-SOIC (0.295" width) while the substitute uses 28-TSSOP (0.173" width). PCB layout and footprint modifications are required for implementation of the substitute part.

Frequently Asked Questions (FAQ)

Q: Can the ADC10040CIMTX/NOPB directly replace the THS1041CDW without design changes?

A: Functional substitution is possible due to identical resolution, sampling rate, input type, and architecture. However, the different package format (28-TSSOP versus 28-SOIC) requires PCB footprint redesign and layout modifications. Pin-to-pin compatibility must be verified against detailed datasheets before implementation.

Q: What are the key differences between these two parts?

A: The primary differences are package type, supply voltage ranges, and operating temperature specifications. The substitute offers broader voltage tolerance and extended temperature range, making it suitable for more demanding environmental conditions.

Q: Is the substitute part suitable for applications requiring the original 0°C to 70°C temperature range?

A: Yes. The ADC10040CIMTX/NOPB operates across -40°C to 85°C, which encompasses the original specification range. Applications limited to 0°C to 70°C operation are fully supported.

Q: Are there supply voltage compatibility concerns when substituting?

A: The substitute part accepts lower minimum supply voltages (2.7V analog, 2.5V digital) compared to the original (3V for both). Designs operating at the original 3V to 3.6V specification are fully compatible with the substitute. Designs requiring operation below 3V may benefit from the substitute's extended voltage range.

Q: What packaging considerations apply to this substitution?

A: The 28-TSSOP package is narrower (0.173" versus 0.295") than the 28-SOIC, enabling more compact PCB layouts. Reflow soldering parameters and thermal management characteristics may differ between packages and should be evaluated during design transition.

Q: Are both parts compliant with current regulatory requirements?

A: Yes. Both the THS1041CDW and ADC10040CIMTX/NOPB are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

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