ADS1201UG4

Overview

The ADS1201UG4 is a 24-bit, low-power analog-to-digital converter (ADC) from Texas Instruments, housed in a 16-pin SOIC package. It integrates a programmable gain amplifier (PGA), a precision internal reference, and an oscillator to minimize external component requirements. The device operates on a single supply voltage ranging from 4.75V to 5.25V and supports data rates up to 1kSPS. Key electrical specifications include a differential nonlinearity (DNL) of ±1 LSB and an integral nonlinearity (INL) of ±0.0015% FSR. It features a serial interface for communication and functions as a sigma-delta modulator suitable for high-precision measurement applications.

Feature Summary

• 24-bit resolution with integrated PGA, internal reference, and oscillator
• Low power consumption optimized for battery-operated systems
• Serial interface compatible with standard microcontrollers
• Operates within -40°C to +85°C temperature range

Applications

• Portable medical devices such as ECG and pulse oximeters
• Industrial process control and monitoring systems
• Weigh scales and force measurement instruments
• Strain gauge and load cell interfaces

Procurement Notes

Verify the G4 suffix indicates lead-free construction compliant with RoHS standards. Confirm the U package designation corresponds to the 16-SOIC form factor. Check current availability status as components may be subject to supply chain fluctuations or obsolescence notices from Texas Instruments.

Selection Notes

Select the ADS1201UG4 when a single-channel, 24-bit ADC with integrated signal conditioning is required. Ensure the system requires a maximum sampling rate of 1kSPS and can accommodate the 16-SOIC footprint. Verify that the 4.75V to 5.25V supply voltage aligns with the target application's power architecture.

Part Context

The ADS1201UG4 is part of the ADS120x family of precision ADCs designed for low-noise, high-resolution measurements. The 'G4' suffix denotes a lead-free variant manufactured by Texas Instruments. This component serves as a direct replacement for earlier versions of the ADS1201, maintaining functional compatibility while adhering to updated environmental compliance standards.

Replacement Considerations

The ADS1201U is the primary equivalent part number without the lead-free suffix. Cross-referencing with other ADS120x series members like the ADS1211 is possible but requires verification of channel count and interface differences.