Part A
ADS131A04IPBS
Texas Instruments
- Lifecycle
- Active
- Stock
- 6302 PCS
- Package
- TQFP-32
- Series
- Acquisition de données - Analog Front End (AFE)
Replacement verdict
Compatible functional replacement candidate
The ADS131A04IPBSR and ADS131A04IPBS are functionally equivalent four-channel simultaneous-sampling 24-bit delta-sigma ADCs from the same ADS131A04 family, differing only in the tape-and-reel versus tube packaging option. Both share identical die, pinout, electrical specifications, and TQFP-32 footprint, making them interchangeable for design and qualification purposes; the choice between them is driven solely by assembly and inventory handling preferences.
Package Type
High match
Pinout and Footprint
High match
Resolution and Channel Count
High match
Supply Voltage and Interface
High match
Parts at a glance
Part B
ADS131A04IPBSR
Texas Instruments
- Lifecycle
- Active
- Stock
- 3693 PCS
- Package
- TQFP-32
- Series
- Acquisition de données - Analog Front End (AFE)
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADS131A04IPBSR | ADS131A04IPBS | Why it matters |
|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Same manufacturer ensures identical silicon design and process, supporting functional substitutability. |
| Resolution | 24 bit | 24 bit | Bit depth determines measurement precision; identical resolution means equivalent accuracy capability. |
| Number of Channels | 4 | 4 | Channel count defines how many signals can be measured simultaneously; must match for drop-in replacement. |
| Sampling Rate | 128 kSPS | 128 kSPS | Maximum sample rate affects bandwidth and signal capture; identical rates preserve system timing behavior. |
| Supply Voltage | 2.7 V to 3.6 V (analog/digital) | 2.7 V to 3.6 V (analog/digital) | Operating voltage range must match to ensure compatibility with the existing power rail design. |
| Interface | SPI | SPI | Communication protocol must be identical for the host controller to drive the device without firmware changes. |
| Package / Case | 32-TQFP (TQFP-32) | 32-TQFP (TQFP-32) | Footprint and pinout must match for physical board compatibility and solderability. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | Temperature range determines suitability for the target environment; identical ratings ensure equivalent reliability. |
| Packaging / Ordering Suffix | Tape & Reel (R suffix) | Tray / Tube (no R suffix) | The suffix indicates packaging format; both contain the same die, but reel vs. tray affects automated assembly handling. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADS131A04IPBS | ADS131A04IPBSR |
|---|---|---|
| Part Status | Active | Active |
| Number of Bits | 24 | 24 |
| Number of Channels | 4 | 4 |
| Voltage - Supply, Analog | 3V ~ 5.5V | 3V ~ 5.5V |
| Voltage - Supply, Digital | 1.65V ~ 3.6V | 1.65V ~ 3.6V |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What is the difference between ADS131A04IPBSR and ADS131A04IPBS?
The ADS131A04IPBSR and ADS131A04IPBS are the same device: a 4-channel, 24-bit, simultaneous-sampling delta-sigma ADC from Texas Instruments in a TQFP-32 (PBS) package. The "R" suffix on ADS131A04IPBSR denotes tape-and-reel packaging, while ADS131A04IPBS is the tube/tray orderable variant. Electrical and functional specifications are identical.
Are ADS131A04IPBSR and ADS131A04IPBS electrically and functionally interchangeable?
Yes. Both orderable part numbers share the same die, package (TQFP-32, PBS), pinout, and datasheet specifications. The only difference is the shipping/packaging format (tape-and-reel vs tube/tray), so they are interchangeable in the target design provided the board assembly process supports the respective packaging.
What are the key specifications of the ADS131A04?
The ADS131A04 is a 4-channel, simultaneous-sampling, 24-bit delta-sigma ADC with a maximum data rate of 128 kSPS per channel, an SPI-compatible serial interface, an internal reference, and an analog supply range of 3.0 V to 3.6 V (with a separate digital supply). It is intended for energy metering, power monitoring, and industrial measurement applications.
What package and pin count do ADS131A04IPBSR and ADS131A04IPBS use?
Both variants are supplied in a 32-pin TQFP (PBS) package. The package, pinout, and PCB land pattern are identical between the two orderable part numbers.
Which applications are the ADS131A04IPBSR and ADS131A04IPBS suited for?
Both parts target applications requiring multi-channel, simultaneous, high-resolution analog-to-digital conversion, such as electricity meters, power quality monitoring, protection relays, and industrial data acquisition systems.
Does the "R" suffix affect the device's temperature range or qualification?
No. The "R" suffix indicates tape-and-reel packaging only. The device's specified operating temperature range and qualification status are determined by the base part number (ADS131A04IPBS) and are the same for both orderable variants.
How should the packaging difference be handled in procurement and assembly?
Select ADS131A04IPBSR when tape-and-reel feeding is required for automated pick-and-place assembly, and ADS131A04IPBS when tube/tray handling is acceptable. Because the devices are identical, either can be used in the same PCB design; only the feeder and handling setup differ.