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ADC3441IRTQ25 Equivalent & Substitute Parts
Part Overview
The ADC3441IRTQ25 is a 14-bit pipelined analog-to-digital converter manufactured by Texas Instruments, designed for data acquisition applications requiring simultaneous sampling of four differential inputs at 25 MSPS. The device features LVDS serial data interface and operates from 1.7V to 1.9V supply voltages for both analog and digital domains.
The ADC3441IRTQ25 is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications currently utilizing this component.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resolution (Bits) | 14 |
| Sampling Rate | 25 MSPS |
| Number of Inputs | 4 |
| Input Type | Differential |
| Data Interface | LVDS - Serial |
| Architecture | Pipelined |
| Reference Type | External, Internal |
| Analog Supply Voltage | 1.7V ~ 1.9V |
| Digital Supply Voltage | 1.7V ~ 1.9V |
| Package | 56-VFQFN Exposed Pad (8x8) |
| Operating Temperature Range | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
Substitute Part Grouping Explanation
Substitution eligibility for the ADC3441IRTQ25 is determined by strict equivalence across the following critical parameters:
- Resolution: 14 bits
- Sampling Rate: 25 MSPS
- Number of Inputs: 4 differential channels
- Data Interface: LVDS serial output
- Architecture: Pipelined configuration
- Supply Voltage Ranges: 1.7V ~ 1.9V (analog and digital)
- Package Type: 56-VFQFN with exposed pad
- Operating Temperature: -40°C ~ 85°C
The ADC3441IRTQT meets all substitution criteria. This part differs only in packaging format (Tape & Reel versus individual packaging) and product status (Active versus Obsolete), with identical electrical specifications and mechanical compatibility.
Parameter Comparison
| Parameter | ADC3441IRTQ25 | ADC3441IRTQT |
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments |
| Resolution | 14 Bits | 14 Bits |
| Sampling Rate | 25 MSPS | 25 MSPS |
| Number of Inputs | 4 | 4 |
| Input Type | Differential | Differential |
| Data Interface | LVDS - Serial | LVDS - Serial |
| Architecture | Pipelined | Pipelined |
| Reference Type | External, Internal | External, Internal |
| Analog Supply Voltage | 1.7V ~ 1.9V | 1.7V ~ 1.9V |
| Digital Supply Voltage | 1.7V ~ 1.9V | 1.7V ~ 1.9V |
| Features | Simultaneous Sampling | Simultaneous Sampling |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Package / Case | 56-VFQFN Exposed Pad | 56-VFQFN Exposed Pad |
| Supplier Device Package | 56-QFN (8x8) | 56-QFN (8x8) |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 3 (168 Hours) | 3 (168 Hours) |
| REACH Status | REACH Unaffected | REACH Unaffected |
| Product Status | Obsolete | Active |
| Packaging Format | Individual | Tape & Reel (TR) |
Engineering Selection Recommendations
The ADC3441IRTQT is a direct functional equivalent to the ADC3441IRTQ25. Both parts are manufactured by Texas Instruments with identical electrical and mechanical specifications. The primary distinction is product lifecycle status: the ADC3441IRTQ25 is obsolete, while the ADC3441IRTQT maintains active status.
Both parts carry ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for new designs and legacy system support. The ADC3441IRTQT is the preferred selection for new applications and ongoing production due to its active product status and confirmed availability. For existing designs currently using the ADC3441IRTQ25, the ADC3441IRTQT provides seamless integration without circuit modification.
The packaging difference (Tape & Reel for ADC3441IRTQT versus individual packaging for ADC3441IRTQ25) affects procurement and assembly processes but does not impact electrical performance or PCB-level compatibility.
Frequently Asked Questions (FAQ)
Q: Can the ADC3441IRTQT be used as a direct replacement for the ADC3441IRTQ25?
A: Yes. The ADC3441IRTQT is electrically and mechanically identical to the ADC3441IRTQ25. Both devices feature 14-bit resolution, 25 MSPS sampling rate, four differential inputs, LVDS serial interface, and identical package geometry (56-VFQFN). No circuit modifications are required.
Q: What is the difference between ADC3441IRTQ25 and ADC3441IRTQT?
A: The parts differ in product status and packaging format. The ADC3441IRTQ25 is obsolete and supplied in individual packaging. The ADC3441IRTQT is active and supplied in Tape & Reel format. All electrical specifications and pin configurations are identical.
Q: Why is the ADC3441IRTQ25 classified as obsolete?
A: Product obsolescence reflects Texas Instruments' lifecycle management. The ADC3441IRTQT, with identical specifications and active status, is the current production equivalent.
Q: Are there any compliance differences between these parts?
A: No. Both parts maintain ROHS3 compliance and REACH unaffected status. Moisture sensitivity level (MSL 3, 168 hours) is identical for both devices.
Q: Does the Tape & Reel packaging of the ADC3441IRTQT affect circuit performance?
A: No. Packaging format affects procurement and assembly logistics only. Electrical performance and PCB-level functionality remain unchanged.
Q: Can I mix ADC3441IRTQ25 and ADC3441IRTQT in the same production batch?
A: Yes. Both parts are functionally equivalent and can be used interchangeably in the same circuit design without performance variation.
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