ADS7254IPW

Analog To Digital Converters (ADC) Overview

The ADS7254IPW is a dual-channel, 12-bit successive approximation register (SAR) analog-to-digital converter (ADC) manufactured by Texas Instruments. It supports simultaneous sampling at a data rate of 1 MSPS with a maximum conversion time of 0.45 µs. The device operates on an analog supply voltage range of 4.5 V to 5.5 V and a digital supply voltage range of 1.65 V to 5.5 V. Key performance metrics include a signal-to-noise ratio (SNR) of 74 dB and a SINAD of 73.9 dB. It features differential inputs, serial interface connectivity, and an external or internal reference option with a typical 2.5 V reference voltage. Power consumption is rated at 45 mW to 50 mW. The component is housed in a 16-lead TSSOP package and functions within a temperature range of -40°C to +125°C.

Analog To Digital Converters (ADC) Feature Summary

• Dual-channel architecture enabling simultaneous sampling of two independent analog signals for synchronized data acquisition.
• Flexible power management supporting separate analog and digital supply rails to optimize noise performance and compatibility.
• Integrated SAR ADC core providing high-speed conversion with low power dissipation suitable for battery-operated systems.
• Serial interface compatibility allowing straightforward connection to microcontrollers and DSPs with minimal pin count.

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring multi-channel sensor data acquisition
• Medical instrumentation such as portable diagnostic devices needing precise signal digitization
• Data acquisition modules in automated test equipment

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix to confirm the packaging type, as IPW denotes tube packaging while other suffixes may indicate tape and reel options. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Ensure the selected variant matches the required operating temperature range and pin configuration for your PCB layout.

Analog To Digital Converters (ADC) Selection Notes

Select this component when simultaneous sampling of two channels is critical, distinguishing it from multiplexed alternatives that introduce aperture delay. Consider the 12-bit resolution and 1 MSPS speed against system bandwidth requirements. Evaluate the need for differential inputs to reject common-mode noise in industrial environments. Verify that the available supply voltages align with the system's analog and digital domains.

Analog To Digital Converters (ADC) Part Context

The ADS7254 belongs to the ADS7254 family of dual-channel SAR ADCs from Texas Instruments. This series is designed for applications requiring moderate resolution and high throughput. Other members in the broader data converter portfolio may offer different resolutions or channel counts but lack the specific simultaneous sampling capability of this dual-channel architecture.

Analog To Digital Converters (ADC) Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Engineers should consult Texas Instruments application notes or distributor cross-reference tools for potential equivalents based on specific electrical parameter matching.