ADS1202IPWRG4

Overview

The ADS1202IPWRG4 is a 16-bit, single-channel analog-to-digital converter (ADC) from Texas Instruments, utilizing sigma-delta modulation architecture. It operates on a single supply voltage ranging from 4.5 V to 5.5 V for both analog and digital domains. The device features an internal oscillator and reference, supporting data rates up to 40 kS/s with differential input capability. Key performance metrics include a signal-to-noise ratio (SNR) of 70.5 dB and integral nonlinearity (INL) of +/- 12 LSB. It is housed in an 8-pin TSSOP package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• 16-bit resolution with 40 kS/s sampling rate
• Internal oscillator and reference for simplified design
• Differential input with sigma-delta modulation structure
• Low power consumption of 30 mW

Applications

• Current shunt monitoring
• Industrial process control systems
• Portable instrumentation

Procurement Notes

Verify the specific suffix 'G4' indicates lead-free compliance and RoHS adherence as per Texas Instruments standards. Confirm the package type is TSSOP-8 and ensure the operating voltage requirements match the system's 4.5 V to 5.5 V supply rails. Check for moisture sensitivity level (MSL) ratings if storage or reflow soldering conditions are critical to the manufacturing process.

Selection Notes

Select this component when a high-resolution, low-power ADC with an integrated reference and clock is required for single-supply applications. The 16-bit resolution and 40 kS/s speed suit precision measurements where external components must be minimized. Ensure the differential input requirement aligns with the sensor interface and that the TSSOP-8 package fits the PCB layout constraints.

Part Context

The ADS1202IPWRG4 belongs to the ADS1202 series of delta-sigma ADCs. It shares core specifications with the ADS1202IPWR but includes the 'G4' suffix denoting green/RoHS-compliant packaging. This part is designed for applications requiring high accuracy in a compact form factor, leveraging TI's established sigma-delta technology for noise rejection and linearity.

Replacement Considerations

The ADS1202IPWT is a pin-compatible alternative in a different package variant. Verify electrical parameters such as SNR and INL against the original datasheet to ensure functional equivalence. Cross-reference the 'G4' suffix requirements with other distributors to confirm availability of equivalent lead-free versions.