Part A
ADS131M08IPBS
텍사스 인스트루먼트(주)
- Lifecycle
- Active
- Stock
- 6440 PCS
- Package
- TQFP-32
- Series
- 데이터 수집 - 아날로그 변환기(ADC)
Replacement verdict
Compatible functional replacement candidate
The ADS131M08IPBS is a viable functional replacement candidate for the ADS131E06IPAGR in many designs, offering a higher channel count and wider supply range, but it requires careful validation of the serial interface, reference configuration, and package footprint before adoption.
Channel Count
Validation required
Package Type
Validation required
Serial Interface
Validation required
Supply Voltage Range
Validation required
Parts at a glance
Part B
ADS131E06IPAGR
텍사스 인스트루먼트(주)
- Lifecycle
- Active
- Stock
- 7046 PCS
- Package
- TQFP-64
- Series
- 데이터 수집 - 아날로그 프런트엔드(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 | ADS131E06IPAGR | ADS131M08IPBS | Why it matters |
|---|---|---|---|
| Number of input channels | 6 | 8 | Channel count determines how many analog signals can be measured simultaneously; a system needing 8 channels cannot directly substitute the 6-channel device. |
| Resolution | 24 bit | 24 bit | Both are 24-bit delta-sigma ADCs, so dynamic range and precision class are comparable for high-accuracy measurement applications. |
| Maximum sample rate (per channel) | 64 kSPS | 32 kSPS | Sample rate limits the bandwidth of signals that can be captured; higher rates suit faster transient or power-quality measurements. |
| Supply voltage (analog) | 2.7 V to 5.25 V (single supply) | 2.7 V to 3.6 V (analog) | The wider analog supply range of the ADS131E06 allows operation directly from a 5 V rail, while the ADS131M08 is limited to 3.6 V, affecting system power design. |
| Interface | SPI | SPI | Both use a standard SPI serial interface, so the host microcontroller connection is functionally compatible. |
| Package | TQFP-64 (PAG) | TQFP-32 (PBS) | Different package footprints and pin counts mean the two devices are not drop-in PCB compatible and require layout changes. |
| Internal PGA / gain stages | Yes (1, 2, 4, 8, 12) | Yes (1, 2, 4, 8, 16, 32, 64, 128) | Programmable gain affects the smallest signal that can be resolved; the wider gain range of the ADS131M08 supports lower-amplitude sensors. |
| Operating temperature range | -40 °C to +85 °C | -40 °C to +125 °C | The extended temperature rating of the ADS131M08 enables use in harsher industrial environments. |
| Typical application focus | Power monitoring, protection relays, energy metering | Energy metering, power quality, industrial sensing | Both target power/energy measurement, but differing channel count, gain range, and sample rate make each better suited to specific metering architectures. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADS131M08IPBS | ADS131E06IPAGR |
|---|---|---|
| Part Status | Active | Active |
| Number of Bits | 24 | 16, 24 |
| Sampling Rate(Per Second) | 32k | - |
| Number of Inputs | 8 | - |
| Input Type | Differential | - |
| Data Interface | SPI | - |
| Configuration | ADC | - |
| Ratio - S / H: ADC | 0:1 | - |
| Number of A/D Converters | 8 | - |
| Architecture | Sigma-Delta | - |
| Reference Type | Internal | - |
| Voltage - Supply, Analog | 2.7V ~ 3.6V | 2.7V ~ 5.25V |
| Voltage - Supply, Digital | 2.7V ~ 3.6V | 1.8V ~ 3.6V |
| Features | PGA, Simultaneous Sampling | - |
| Operating Temperature | -40°C ~ 125°C | - |
| Number of Channels | - | 6 |
| Power (Watts) | - | 13.5 mW |
| Mounting Type | - | Surface Mount |
Frequently asked questions
What are the key differences between the ADS131E06IPAGR and ADS131M08IPBS?
The ADS131E06IPAGR is a 6-channel, 24-bit delta-sigma ADC with a maximum data rate of 64 kSPS per channel, housed in a TQFP-64 package. The ADS131M08IPBS is an 8-channel, 24-bit delta-sigma ADC with a maximum data rate of 32 kSPS per channel, housed in a TQFP-32 package. The ADS131M08IPBS also features a wider analog supply range and lower power consumption per channel in typical configurations.
Are the ADS131E06IPAGR and ADS131M08IPBS pin-to-pin compatible?
No. The ADS131E06IPAGR uses a 64-pin TQFP package, while the ADS131M08IPBS uses a 32-pin TQFP package. The pin counts, pin functions, and PCB land patterns differ, so they are not direct drop-in replacements.
How do the channel counts and data rates compare between the two devices?
The ADS131E06IPAGR provides 6 simultaneous-sampling channels at up to 64 kSPS per channel. The ADS131M08IPBS provides 8 simultaneous-sampling channels at up to 32 kSPS per channel. The ADS131E06IPAGR offers higher per-channel throughput, while the ADS131M08IPBS offers more channels at a lower maximum rate.
Do both devices support SPI communication?
Yes. Both the ADS131E06IPAGR and ADS131M08IPBS support SPI-compatible serial communication for register configuration and data readout, as specified in their respective manufacturer datasheets.
How do the power supply requirements differ between the ADS131E06IPAGR and ADS131M08IPBS?
The ADS131E06IPAGR operates from an analog supply (AVDD) of 2.7 V to 5.25 V and a digital supply (DVDD) of 1.8 V to 3.6 V. The ADS131M08IPBS operates from an analog supply of 2.7 V to 3.6 V and a digital supply of 1.8 V to 3.6 V. Designers should verify exact supply ranges and recommended operating conditions in the respective datasheets.
Are both ADCs suitable for simultaneous multi-channel sampling in industrial measurement systems?
Yes. Both the ADS131E06IPAGR and ADS131M08IPBS are delta-sigma ADCs with simultaneous-sampling architectures, making them suitable for multi-channel industrial measurement applications such as power monitoring and energy metering, subject to the channel count and data rate requirements of the specific design.
What package and thermal considerations should be evaluated when choosing between these two parts?
The ADS131E06IPAGR is supplied in a 64-pin TQFP package, and the ADS131M08IPBS is supplied in a 32-pin TQFP package. The smaller package of the ADS131M08IPBS can simplify PCB layout and reduce board area, while the larger package of the ADS131E06IPAGR provides more pins for channel and interface routing. Thermal performance should be validated against the power dissipation and ambient conditions of the target design using the manufacturer datasheets.