PCA9691T/1,512

ADCs/DACs - Special Purpose Overview

The PCA9691T/1,512 is an 8-bit CMOS data acquisition device featuring four analog inputs and one analog output. It integrates an 8-bit successive approximation ADC and a multiplying DAC with on-chip sample and hold. Communication occurs via a serial I2C-bus interface supporting Fast-mode Plus at 1 MHz. The device operates on a single supply voltage ranging from 2.5 V to 5.5 V. Hardware addressing allows up to 64 devices on the bus using pins A0, A1, and A2. The component is housed in a SOIC-16 package.

ADCs/DACs - Special Purpose Feature Summary

• 8-bit successive approximation A/D conversion
• Four analog inputs programmable as single-ended or differential
• Multiplying D/A converter with one analog output
• 1 MHz Fast-mode Plus (Fm+) I2C-bus interface

ADCs/DACs - Special Purpose Applications

• Data acquisition systems requiring low power consumption
• Industrial process control monitoring
• Battery-powered instrumentation

ADCs/DACs - Special Purpose Procurement Notes

Verify component status as obsolete or end-of-life through official NXP channels before procurement planning. Confirm RoHS compliance and moisture sensitivity level (MSL 3) requirements for storage and handling procedures during assembly.

ADCs/DACs - Special Purpose Selection Notes

Select this model for applications requiring simultaneous 8-bit ADC and DAC functionality with I2C connectivity. Ensure the system supports Fast-mode Plus speeds if maximum conversion rates are needed. Verify that the SOIC-16 package fits the PCB layout constraints.

ADCs/DACs - Special Purpose Part Context

This part belongs to the PCA9691 family of 8-bit A/D and D/A converters. Other variants include the PCA9691BS in HVQFN16 and PCA9691TS in TSSOP16 packages. All share identical electrical specifications and functional capabilities.

ADCs/DACs - Special Purpose Replacement Considerations

No direct public substitute part numbers are documented for this specific obsolete component. Evaluate pin-compatible alternatives within the same manufacturer's portfolio or perform full circuit redesign for modern equivalents.