Part A
ADS1252U/2K5
Texas Instruments
- Lifecycle
- Active
- Stock
- 6702 PCS
- Package
- SOIC-8
- Series
- Acquisition de données - Convertisseur analogique - numérique (ADC)
Replacement verdict
Compatible functional replacement candidate
The ADS1252U/2K5 and ADS1252UG4 are functionally equivalent, sharing the same core ADC architecture, resolution, and package. The only distinction is the manufacturer's packaging or ordering designation, with no impact on electrical performance or footprint. Both parts are interchangeable in the target application, subject to standard incoming validation.
Resolution and Accuracy
High match
Package Type
High match
Supply Voltage
High match
Ordering Part Number
Validation required
Parts at a glance
Part B
ADS1252UG4
Texas Instruments
- Lifecycle
- Active
- Stock
- 6755 PCS
- Package
- SOIC-8
- Series
- Acquisition de données - Convertisseur analogique - numérique (ADC)
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADS1252U/2K5 | ADS1252UG4 | Why it matters |
|---|---|---|---|
| Resolution | 24 bit | 24 bit | Both provide identical 24-bit resolution, so measurement precision is unchanged. |
| Number of Input Channels | 1 (single-ended) | 1 (single-ended) | Same single-channel architecture means the same signal routing applies. |
| Sampling Rate | 41 kSPS | 41 kSPS | Identical maximum data rate supports the same throughput requirements. |
| Interface Type | SPI (serial) | SPI (serial) | Same serial interface ensures firmware and host connectivity remain compatible. |
| Supply Voltage | 5 V (analog and digital) | 5 V (analog and digital) | Matching supply requirements allow direct board-level substitution. |
| Package / Case | SOIC-8 | SOIC-8 | Same footprint and package allow drop-in replacement on existing PCBs. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Identical temperature ratings ensure the same environmental robustness. |
| Packaging / Ordering Suffix | Tape and reel (2,500 units) | Tube / bulk (G4 lead-free variant) | Different packaging and lead-free (G4) designation affect assembly handling and RoHS compliance, though the die is functionally equivalent. |
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Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADS1252U/2K5 | ADS1252UG4 |
|---|---|---|
| Part Status | Active | Discontinued at Digi-Key |
| Number of Bits | 24 | 24 |
| Sampling Rate(Per Second) | 40k | 40k |
| Number of Inputs | 1 | 1 |
| Input Type | Differential | Differential |
| Data Interface | SPI | SPI |
| Configuration | ADC | ADC |
| Number of A/D Converters | 1 | 1 |
| Architecture | Sigma-Delta | Sigma-Delta |
| Reference Type | External | External |
| Voltage - Supply, Analog | 5V | 5V |
| Voltage - Supply, Digital | 5V | 5V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
Frequently asked questions
What is the difference between ADS1252U/2K5 and ADS1252UG4?
Both are the same ADS1252 24-bit delta-sigma analog-to-digital converter from Texas Instruments in an SOIC-8 (D) package. The difference is ordering format: ADS1252U/2K5 is supplied as a tape-and-reel orderable (2,500 units per reel), while ADS1252UG4 uses the "G4" suffix denoting lead-free (RoHS-compliant) construction in tube/rail ordering. Functionally and electrically they are identical devices.
Are ADS1252U/2K5 and ADS1252UG4 electrically and functionally interchangeable?
Yes. Both orderables share the same silicon: a 24-bit delta-sigma ADC with a 41 kSPS maximum data rate, single +5 V analog supply, and SPI-compatible serial interface, in the same 8-pin SOIC package with identical pinout. They can be interchanged in a design provided the assembly and ordering format (tape-and-reel vs tube) suits the production process.
What does the "G4" suffix on ADS1252UG4 indicate?
The G4 suffix is Texas Instruments' designation for lead-free (Pb-free), RoHS-compliant package construction. ADS1252UG4 is therefore the lead-free orderable, whereas the base ADS1252U/2K5 orderable reflects the standard tape-and-reel ordering format. Designers should confirm the specific orderable's Pb-free status against the current TI datasheet or product page before finalizing compliance documentation.
What are the key performance specifications shared by both parts?
Both are 24-bit delta-sigma ADCs with a maximum 41 kSPS output rate, a single +5 V analog supply, an internal oscillator, and a serial (SPI-compatible) interface. They are specified for low-noise, high-resolution measurement applications such as industrial process control, weigh scales, and instrumentation. Consult the TI ADS1252 datasheet for the complete verified specification table.
Do ADS1252U/2K5 and ADS1252UG4 use the same package and pinout?
Yes. Both are offered in the 8-pin SOIC (D) package with the same pin functions, so PCB land patterns and footprint are identical. The only practical difference is the shipping format and the G4 lead-free designation, not the package outline or pin assignment.
Which orderable should be selected for high-volume automated assembly?
ADS1252U/2K5 is supplied in tape-and-reel (2,500 units per reel), which suits automated pick-and-place lines. ADS1252UG4 is typically supplied in tube/rail format. Selection should be based on the feeder format required by the assembly line and on the lead-free/RoHS requirement of the end product.
Are both parts RoHS compliant?
The G4 suffix on ADS1252UG4 explicitly denotes lead-free, RoHS-compliant construction. For ADS1252U/2K5, RoHS status should be verified against the current TI product page or datasheet, as the base orderable's compliance depends on the specific revision and packaging. Do not assume compliance without confirming the orderable's documented status.
Can ADS1252U/2K5 and ADS1252UG4 be mixed on the same PCB assembly?
Because both share the same die, package, and pinout, they are functionally interchangeable on a given board. However, mixing orderables in one assembly may complicate traceability and compliance records, particularly regarding lead-free status. It is recommended to standardize on one orderable per assembly unless the bill of materials explicitly permits substitution.