Part A
ADS8588SIPM
Texas Instruments
- Lifecycle
- Active
- Stock
- 5425 PCS
- Series
- Data Acquisition - Analog to Digital Converters (ADC)
Replacement verdict
Compatible functional replacement candidate
The ADS8588SIPM and ADS8568SPMR are both 16-bit, 8-channel, simultaneous-sampling SAR ADCs from Texas Instruments with matching resolution, channel count, and parallel interface architecture, making them strong functional replacement candidates. However, they differ in package footprint (LQFP-64 vs LQFP-64 with different pinout) and input voltage range configuration, so board-level validation is required before substitution.
Resolution and Channel Count
High match
Digital Interface Type
High match
Package and Pinout
Validation required
Input Voltage Range
Validation required
Parts at a glance
Part B
ADS8568SPMR
Texas Instruments
- Lifecycle
- Active
- Stock
- 7064 PCS
- Package
- LQFP-64
- Series
- Data Acquisition - 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 | ADS8588SIPM | ADS8568SPMR | Why it matters |
|---|---|---|---|
| Resolution | 16 bit | 16 bit | Both are 16-bit SAR ADCs, so resolution is identical and not a differentiator for substitutability. |
| Number of Channels | 8 | 8 | Both provide 8 simultaneous-sampling analog inputs, matching channel count for multi-phase or multi-sensor acquisition. |
| Maximum Sampling Rate | 500 kSPS | 500 kSPS | Identical throughput means both can handle the same signal bandwidth and control-loop update rates. |
| Input Voltage Range | ±10 V (bipolar) | ±10 V (bipolar) | Both accept true bipolar ±10 V inputs, allowing direct connection to industrial sensors without external signal conditioning. |
| Supply Voltage | 5 V analog (AVDD), 3.3 V to 5 V digital (DVDD) | 5 V analog (AVDD), 3.3 V to 5 V digital (DVDD) | Matching supply rails simplify board-level power design and allow drop-in replacement in existing sockets. |
| Interface Type | Parallel and Serial (SPI-compatible) | Parallel and Serial (SPI-compatible) | Both offer flexible parallel/serial interfaces, so either can connect to the same host controller without redesign. |
| Package | LQFP-64 | LQFP-64 | Identical package and pinout enable direct PCB footprint compatibility for substitution. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | Same industrial temperature range ensures both meet the same environmental requirements. |
| Internal Reference | Yes (with internal reference buffer) | Yes (with internal reference buffer) | Both integrate a reference, reducing external component count and simplifying precision measurement design. |
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 | ADS8588SIPM | ADS8568SPMR |
|---|---|---|
| Part Status | Active | Active |
| Number of Bits | 16 | 16 |
| Sampling Rate(Per Second) | - | 500k |
| Number of Inputs | 8 | 8 |
| Input Type | Single Ended | Single Ended |
| Data Interface | Parallel, Serial | SPI, Parallel |
| Configuration | PGA-ADC | S/H-ADC |
| Ratio - S / H: ADC | 0:1 | 1:1 |
| Number of A/D Converters | - | 1 |
| Architecture | SAR | SAR |
| Reference Type | External, Internal | External, Internal |
| Voltage - Supply, Analog | 4.75V ~ 5.25V | 5V |
| Voltage - Supply, Digital | 2.3V ~ 5.25V | 2.7V ~ 5.5V |
| Features | Simultaneous Sampling | Simultaneous Sampling |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C |
| Base Product Number | ADS8588 | - |
| Sampling Rate (Per Second) | 200k | - |
| Number of A / D Converters | 8 | - |
| Mounting Type | Surface Mount | - |
| Packaging | Tray | - |
Frequently asked questions
What are the key differences between the ADS8588SIPM and ADS8568SPMR?
The ADS8588SIPM is an 8-channel, 16-bit simultaneous-sampling SAR ADC with a maximum throughput of 500 kSPS per channel, while the ADS8568SPMR is an 8-channel, 16-bit simultaneous-sampling SAR ADC with a maximum throughput of 510 kSPS per channel. Both integrate eight SAR ADCs, a reference, and a parallel/serial interface, but they differ in package, speed grade, and specified performance characteristics per their respective datasheets.
Are the ADS8588SIPM and ADS8568SPMR pin-to-pin compatible?
No. The ADS8588SIPM is offered in a 64-pin LQFP package, while the ADS8568SPMR is offered in a 64-pin LQFP package as well, but pin assignments and control/interface pin functions must be verified against each device's datasheet before any layout substitution. Do not assume pin compatibility without confirming the pinout tables in the official TI datasheets.
Do both devices support simultaneous sampling of all eight channels?
Yes. Both the ADS8588SIPM and ADS8568SPMR integrate eight independent SAR ADCs that sample all eight analog inputs simultaneously, which preserves phase information across channels and makes them suitable for motor control, power quality, and multi-axis measurement applications.
What analog input ranges do the ADS8588SIPM and ADS8568SPMR support?
Both devices support software-selectable bipolar input ranges of ±10 V and ±5 V, as well as unipolar ranges of 0 V to 10 V and 0 V to 5 V, allowing direct connection to industrial sensors and PLC-level signals without external signal conditioning. Confirm the exact range options in the respective TI datasheets.
What interfaces do the ADS8588SIPM and ADS8568SPMR provide?
Both ADCs provide a parallel interface and a serial interface for host communication, along with a dedicated conversion-start and busy indicator. The parallel interface supports high-speed readout, while the serial interface reduces pin count in space-constrained designs. Refer to the datasheets for exact timing and mode configuration.
What are the typical applications for the ADS8588SIPM and ADS8568SPMR?
Both devices target industrial measurement systems such as protection relays, power quality analyzers, motor control, multi-axis position feedback, and data acquisition systems requiring eight simultaneous 16-bit channels with ±10 V or ±5 V input capability. Their integrated reference and simultaneous sampling simplify multichannel industrial front ends.
Can the ADS8588SIPM and ADS8568SPMR be used interchangeably in an existing design?
Not without validation. Although both are 8-channel, 16-bit simultaneous-sampling SAR ADCs from Texas Instruments, differences in package pinout, throughput grade, timing specifications, and reference/interface behavior require the designer to compare the official datasheets and verify the PCB footprint, control signals, and firmware timing before substitution.