Part A
ADS131E06IPAGR
Texas Instruments
- Lifecycle
- Active
- Stock
- 7046 Stückzahl
- Package
- TQFP-64
- Series
- Datenerfassung mit dem Analog Front End (AFE)
Replacement verdict
Compatible functional replacement candidate
The ADS131E06IPAGR is a viable functional replacement candidate for the ADS131A04IPBSR in applications requiring a higher channel count within the same analog front-end family, but it is not a pin-for-pin drop-in. The ADS131A04IPBSR offers a lower channel count with hardware-mode flexibility, while the ADS131E06IPAGR provides six channels in a different package and pinout. Designers must validate the package footprint, channel count requirements, and digital interface configuration before substituting, as the two devices differ in package type, channel count, and control interface architecture.
Channel Count
Not compatible
Package Type
Not compatible
Digital Interface
Validation required
Resolution
High match
Parts at a glance
Part B
ADS131A04IPBSR
Texas Instruments
- Lifecycle
- Active
- Stock
- 3693 Stückzahl
- Package
- TQFP-32
- Series
- Datenerfassung mit dem 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 | ADS131E06IPAGR | Why it matters |
|---|---|---|---|
| Number of ADC channels | 4 | 6 | Channel count determines how many independent signals can be sampled simultaneously; a 6-channel part cannot directly replace a 4-channel design without unused inputs being handled. |
| Resolution | 24 bit | 24 bit | Both provide 24-bit delta-sigma conversion, so dynamic range and precision class are comparable for high-accuracy sensing. |
| Maximum sample rate per channel | 128 kSPS | 64 kSPS | Sample rate limits the bandwidth of signals that can be captured; the higher-rate device supports faster transient or higher-frequency measurements. |
| Interface type | SPI (serial) | SPI (serial) | Both use a serial SPI interface, simplifying digital host compatibility and firmware reuse between the two parts. |
| Supply voltage (analog) | 3.0 V to 3.6 V (AVDD) | 2.7 V to 5.25 V (AVDD) | The wider analog supply range of the ADS131E06 allows operation from 5 V rails, while the ADS131A04 is restricted to 3.3 V-class supplies. |
| Digital supply voltage | 1.7 V to 3.6 V (DVDD) | 1.8 V to 3.6 V (DVDD) | Digital I/O levels must match the host logic; the slightly different minimum DVDD affects low-voltage logic compatibility. |
| Package | 32-pin TQFP (PBS) | 64-pin TQFP (PAG) | Different package footprints and pin counts prevent direct board-level drop-in replacement without a PCB redesign. |
| Operating temperature range | -40 °C to +125 °C | -40 °C to +85 °C | The wider temperature rating of the ADS131A04 suits harsher environments, whereas the ADS131E06 is limited to standard industrial ranges. |
| Integrated PGA / gain stages | Yes (programmable gain) | Yes (programmable gain) | Both include programmable gain amplification, allowing small sensor signals to be scaled before conversion without external front-end circuitry. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADS131E06IPAGR | ADS131A04IPBSR |
|---|---|---|
| Part Status | Active | Active |
| Number of Bits | 16, 24 | 24 |
| Number of Channels | 6 | 4 |
| Power (Watts) | 13.5 mW | - |
| Voltage - Supply, Analog | 2.7V ~ 5.25V | 3V ~ 5.5V |
| Voltage - Supply, Digital | 1.8V ~ 3.6V | 1.65V ~ 3.6V |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the key architectural differences between the ADS131A04IPBSR and ADS131E06IPAGR?
The ADS131A04IPBSR is a 4-channel, simultaneous-sampling, 24-bit delta-sigma ADC with a maximum data rate of 128 kSPS and an SPI-compatible interface, housed in a TQFP-32 package. The ADS131E06IPAGR is a 6-channel, simultaneous-sampling, 24-bit delta-sigma ADC with a maximum data rate of 64 kSPS and an SPI-compatible interface, housed in a TQFP-64 package. The ADS131A04IPBSR targets higher per-channel throughput with fewer channels, while the ADS131E06IPAGR provides more channels at a lower maximum data rate.
Are the ADS131A04IPBSR and ADS131E06IPAGR pin-to-pin or package compatible?
No. The ADS131A04IPBSR is supplied in a 32-pin TQFP (PBS) package, while the ADS131E06IPAGR is supplied in a 64-pin TQFP (PAG) package. The differing pin counts and package outlines mean the two devices are not drop-in replacements and require different PCB land patterns.
Can the ADS131A04IPBSR and ADS131E06IPAGR be used interchangeably in an existing design?
Not directly. Beyond the package and pin-count differences, the channel count (4 vs 6), maximum data rate (128 kSPS vs 64 kSPS), and register map/configuration differ between the two devices. Any substitution requires schematic, layout, and firmware changes validated against the respective manufacturer datasheets.
How do the channel counts and data rates compare for these two ADCs?
The ADS131A04IPBSR provides 4 simultaneous-sampling channels with a maximum data rate of 128 kSPS. The ADS131E06IPAGR provides 6 simultaneous-sampling channels with a maximum data rate of 64 kSPS. Designs needing more channels favor the ADS131E06IPAGR, while designs needing higher per-channel throughput favor the ADS131A04IPBSR.
Do both devices support simultaneous sampling of all channels?
Yes. Both the ADS131A04IPBSR and ADS131E06IPAGR are simultaneous-sampling delta-sigma ADCs, meaning all of their respective channels (4 and 6) are sampled at the same instant, which is important for multi-phase power monitoring and similar applications requiring phase-coherent measurements.
What supply and interface characteristics should be considered when comparing these parts?
Both devices are 24-bit delta-sigma ADCs with SPI-compatible serial interfaces and are intended for industrial measurement applications. Because analog supply ranges, digital supply ranges, reference options, and register configurations differ between the ADS131A04IPBSR and ADS131E06IPAGR, designers must confirm the exact supply and interface requirements in each device's official datasheet before selecting or substituting either part.
Which part is better suited for higher-channel-count applications?
The ADS131E06IPAGR is better suited for higher-channel-count applications because it integrates 6 simultaneous-sampling channels in a single device, whereas the ADS131A04IPBSR provides 4 channels. For systems requiring more than 4 channels, the ADS131E06IPAGR reduces the need for multiple ADCs, at the cost of a lower maximum data rate of 64 kSPS.