Part A
ADS131E06IPAGR
Texas Instruments
- Lifecycle
- Active
- Stock
- 7046 PCS
- Package
- TQFP-64
- Series
- Acquisição de dados - Front End analógico (AFE)
Replacement verdict
Not a drop-in replacement
The ADS131A02IPBSR and ADS131E06IPAGR are not drop-in replacements for each other. The ADS131A02IPBSR is a 2-channel, 24-bit simultaneous-sampling delta-sigma ADC in a TQFP-32 package, while the ADS131E06IPAGR is a 6-channel, 24-bit simultaneous-sampling delta-sigma ADC in a TQFP-64 package. The differences in channel count, package footprint, pinout, and system architecture require a full redesign rather than a direct substitution.
Different channel count
Different package footprint
Different pinout
Different system architecture
Parts at a glance
Part B
ADS131A02IPBSR
Texas Instruments
- Lifecycle
- Active
- Stock
- 1696 PCS
- Package
- TQFP-32
- Series
- Acquisição de dados - Front End analógico (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 | ADS131A02IPBSR | ADS131E06IPAGR | Why it matters |
|---|---|---|---|
| Number of ADC Channels | 2 | 6 | Channel count determines how many independent signals can be measured simultaneously; a 2-channel device cannot replace a 6-channel device in multi-signal systems. |
| Resolution (Bits) | 24 | 24 | Both offer 24-bit resolution, so precision is comparable; this is a key match for high-accuracy measurement applications. |
| Maximum Sample Rate (SPS) | 128 kSPS | 64 kSPS | Sample rate limits the bandwidth of signals that can be captured; the higher-rate part supports faster-changing inputs. |
| Interface Type | SPI | SPI | Both use SPI, so the host microcontroller interface is compatible, simplifying board-level substitution. |
| Supply Voltage (Analog) | 3.0 V to 3.6 V | 2.7 V to 5.25 V | The wider analog supply range of the ADS131E06 allows operation from 5 V rails, affecting system power design and input range. |
| Package / Case | 32-TQFP | 64-TQFP | Different package footprints and pin counts mean the parts are not drop-in compatible and require PCB redesign. |
| Operating Temperature Range | -40°C to +125°C | -40°C to +85°C | The wider temperature range of the ADS131A02 suits harsher environments, while the ADS131E06 is limited to standard industrial conditions. |
| Input Type | Differential | Differential | Both accept differential inputs, providing good common-mode noise rejection for precision sensing. |
| Internal PGA | Yes | Yes | An integrated programmable gain amplifier allows direct connection of small signals without external amplification. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADS131E06IPAGR | ADS131A02IPBSR |
|---|---|---|
| Part Status | Active | Active |
| Number of Bits | 16, 24 | 24 |
| Number of Channels | 6 | 2 |
| Power (Watts) | 13.5 mW | 2.6 mW |
| Voltage - Supply, Analog | 2.7V ~ 5.25V | 3V ~ 3.45V |
| 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 ADS131A02IPBSR and the ADS131E06IPAGR?
The ADS131A02IPBSR is a 2-channel, simultaneous-sampling, 24-bit delta-sigma ADC with a maximum data rate of 128 kSPS, 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, housed in a TQFP-64 package. The ADS131A02 integrates a more flexible digital interface supporting both SPI and asynchronous modes, while the ADS131E06 is designed primarily for SPI-based communication with a built-in programmable gain amplifier per channel.
Can the ADS131A02IPBSR and ADS131E06IPAGR be used interchangeably in the same design?
No. The two devices differ in channel count (2 vs 6), package footprint (TQFP-32 vs TQFP-64), pinout, maximum data rate (128 kSPS vs 64 kSPS), and register map architecture. A direct PCB substitution is not possible without redesigning the layout, power supply decoupling, and firmware configuration.
Which device is better suited for high-channel-count biopotential or ECG applications?
The ADS131E06IPAGR is better suited for multi-channel biopotential or ECG applications because it provides 6 simultaneous-sampling channels with integrated PGAs and a dedicated ECG/EEG-oriented feature set, whereas the ADS131A02IPBSR offers only 2 channels and is more appropriate for lower-channel-count precision measurement or power-monitoring designs.
How do the maximum data rates of the ADS131A02IPBSR and ADS131E06IPAGR compare?
The ADS131A02IPBSR supports a maximum data rate of 128 kSPS per channel, while the ADS131E06IPAGR supports a maximum data rate of 64 kSPS per channel. Designs requiring higher per-channel throughput should favor the ADS131A02IPBSR, while the ADS131E06IPAGR prioritizes channel density over per-channel sample rate.
Do both devices support simultaneous sampling of all channels?
Yes. Both the ADS131A02IPBSR and the ADS131E06IPAGR use simultaneous-sampling delta-sigma architectures, meaning all available channels are sampled at the same instant, which preserves phase relationships between channels in multi-phase or multi-sensor measurements.
What are the package and pin-count differences between the ADS131A02IPBSR and ADS131E06IPAGR?
The ADS131A02IPBSR is supplied in a 32-pin TQFP (PBS) package, while the ADS131E06IPAGR is supplied in a 64-pin TQFP (PAG) package. The larger pin count of the ADS131E06IPAGR accommodates the additional analog input channels, PGA pins, and reference connections, so PCB land patterns and thermal considerations differ between the two.
Which device offers a more flexible digital interface for microcontroller-based systems?
The ADS131A02IPBSR offers a more flexible digital interface, supporting SPI as well as an asynchronous serial interface mode with dedicated frame synchronization, which can simplify interfacing to certain MCUs or FPGAs. The ADS131E06IPAGR uses a standard SPI-compatible interface with a fixed frame structure optimized for multi-channel data readout.
Are the ADS131A02IPBSR and ADS131E06IPAGR both suitable for precision energy metering applications?
The ADS131A02IPBSR is commonly used in precision energy metering and power monitoring because its 2-channel simultaneous sampling, 24-bit resolution, and 128 kSPS rate suit voltage/current pair measurement. The ADS131E06IPAGR, with 6 channels and integrated PGAs, is more oriented toward multi-channel biopotential and industrial measurement, though it can be used in multi-phase metering where additional channels are required.