Part A
ADS1252U
Texas Instruments
- Lifecycle
- Active
- Stock
- 5583 Stückzahl
- Package
- SOIC-8
- Series
- Datenerfassung mit Analog to Digital Converters (ADC)
Replacement verdict
Compatible functional replacement candidate
The ADS1252U and ADS1252U/2K5G4 are functionally equivalent, sharing the same 24-bit delta-sigma ADC core, SPI interface, SOIC-8 package, and industrial temperature range. The only distinction is the tape-and-reel packaging quantity of the /2K5G4 variant, making it a direct drop-in replacement for the base ADS1252U in automated assembly environments.
Resolution and Architecture
High match
Package Type
High match
Interface Type
High match
Operating Temperature Range
High match
Parts at a glance
Part B
ADS1252U/2K5G4
Texas Instruments
- Lifecycle
- Active
- Stock
- 8737 Stückzahl
- Package
- SOIC-8
- Series
- Datenerfassung mit Analog to Digital Converters (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 | ADS1252U/2K5G4 | Why it matters |
|---|---|---|---|
| Resolution | 24 bit | 24 bit | Determines the smallest signal change the ADC can resolve; identical resolution means equivalent measurement precision. |
| Number of Input Channels | 1 (single-ended) | 1 (single-ended) | Defines how many signal sources can be measured; matching channel count ensures the same system topology can be used. |
| Data Rate (Max) | 41 kSPS | 41 kSPS | Sets the maximum sampling throughput; identical rates preserve timing and bandwidth characteristics of the design. |
| Interface Type | SPI (serial) | SPI (serial) | Determines compatibility with the host microcontroller or DSP; matching interface allows drop-in communication without firmware changes. |
| Supply Voltage | 5 V (analog and digital) | 5 V (analog and digital) | Must match the system power rail; identical supply requirements mean the same power design can be reused. |
| Package / Case | SOIC-8 | SOIC-8 | Footprint and thermal characteristics must match for PCB compatibility; identical package enables direct board replacement. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Ensures reliable operation across the application environment; matching ranges confirm equivalent environmental robustness. |
| Packaging / Ordering Quantity | Tube | Tape & Reel (2500 units) | Affects manufacturing handling and assembly line compatibility; reel packaging suits automated pick-and-place while tubes suit low-volume or prototyping. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADS1252U | ADS1252U/2K5G4 |
|---|---|---|
| Supplier | - | Texas Instruments |
| 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 and ADS1252U/2K5G4?
Both are the same ADS1252 24-bit delta-sigma analog-to-digital converter from Texas Instruments in an SOIC-8 (D) package. The ADS1252U is the standard tube/rail ordering option, while ADS1252U/2K5G4 is the tape-and-reel variant (2,500 units per reel) with the G4 lead-free/RoHS-compliant designation. The electrical function and die are identical; the difference is packaging format and environmental compliance marking.
Are ADS1252U and ADS1252U/2K5G4 electrically and functionally interchangeable?
Yes. Both share the same datasheet specifications: 24-bit resolution, delta-sigma architecture, a maximum data rate of 41 kSPS, a single +5 V analog supply, and an SPI-compatible serial interface. Because they are the same device in the same SOIC-8 package, they are functionally interchangeable in a given design; only the delivery format (tube vs. tape-and-reel) and the G4 RoHS marking differ.
What are the key performance specifications of the ADS1252?
Per the Texas Instruments datasheet, the ADS1252 is a 24-bit delta-sigma ADC with a maximum data rate of 41 kSPS, 19-bit effective resolution (no missing codes to 19 bits), low noise, and an SPI-compatible serial interface. It operates from a single +5 V analog supply and is offered in an SOIC-8 package. Designers should confirm exact noise, INL, and gain error figures against the current TI datasheet for their operating conditions.
Why would a designer choose the /2K5G4 tape-and-reel version over the tube version?
The /2K5G4 option is supplied on 2,500-piece tape-and-reel, which suits automated pick-and-place SMT assembly lines and high-volume production. The standard ADS1252U tube packaging is typically used for prototyping, low-volume runs, or manual assembly. The G4 suffix also indicates lead-free/RoHS-compliant construction, which may be required for certain markets and customer compliance programs.
Do ADS1252U and ADS1252U/2K5G4 use the same PCB footprint and pinout?
Yes. Both are the ADS1252 in the SOIC-8 (D) package, so the pinout and PCB land pattern are identical. Either ordering option can be placed on the same footprint without layout changes; the choice between them affects only procurement, reel/tube handling, and RoHS documentation.
What interface and supply requirements apply to both parts?
Both variants use an SPI-compatible serial interface for configuration and data readout and operate from a single +5 V analog supply, per the TI datasheet. Because they are the same silicon, supply voltage, interface timing, and decoupling requirements are identical. Always verify the current datasheet for absolute maximum ratings and recommended operating conditions before design sign-off.
Can ADS1252U and ADS1252U/2K5G4 be mixed on the same production line?
Yes, from a technical standpoint, since they are the same device in the same package. However, mixing tube and tape-and-reel formats on an automated SMT line requires appropriate feeder and handling setup. For traceability and RoHS compliance records, the G4 marking should be tracked separately if the end product requires documented lead-free compliance.