ADS1202IPWT

Overview

The ADS1202IPWT is a single-channel, 16-bit 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 differential input types with a maximum sampling rate of 40 kS/s. Key electrical specifications include a signal-to-noise ratio (SNR) of 70.5 dB, differential nonlinearity (DNL) of ±1 LSB, and integral nonlinearity (INL) of ±12 LSB. Power consumption is rated at 30 mW, with a maximum power dissipation of 47.5 mW. It communicates via a 3-wire serial interface and is housed in an 8-TSSOP package.

Feature Summary

• 16-bit resolution with 40 kS/s sampling rate using sigma-delta modulation
• Integrated internal oscillator and voltage reference
• Low power consumption of 30 mW at 5 V supply
• 3-wire serial interface compatible with standard microcontrollers

Applications

• Current shunt monitoring applications
• Industrial process control systems
• Portable instrumentation requiring high accuracy

Procurement Notes

Verify the specific suffix 'IPWT' corresponds to the TSSOP-8 package and reel/cut-tape packaging options as listed by distributors. Confirm RoHS compliance status through official Texas Instruments documentation or authorized distributor datasheets before procurement. Ensure the ordering part number matches the required temperature range of -40°C to +85°C.

Selection Notes

Select the ADS1202IPWT when a single-channel, 16-bit ADC with integrated reference and oscillator is required for low-power applications. Compare against the ADS1202IPWR if tape-and-reel packaging is preferred over cut-tape or MouseReel options. Ensure the system design supports the 4.5 V to 5.5 V supply voltage range and utilizes a 3-wire serial communication protocol.

Part Context

The ADS1202IPWT belongs to the ADS1202 series of precision ADCs designed for current shunt and bridge sensor applications. It is manufactured by Texas Instruments and is often evaluated using the ADS1202EVM development kit. The component is distinct from higher-resolution variants like the ADS1230, which offers 20-bit resolution but lower sampling rates.

Replacement Considerations

The ADS1202IPWTG4 is a verified equivalent part number representing the same functional device with lead-free packaging. Verify pinout compatibility and electrical specifications against the original ADS1202IPWT datasheet before substitution.