Original Part
Alternative Part
1. TS272AIDT Substitution Conclusion
The TS272AIDT can serve as a partial substitute for the TLC25L2CDR, as both share the same package (8-SOIC) and maximum supply voltage (16V). However, several key differences must be considered:
- The TS272AIDT has a minimum operating voltage of 3V, whereas the original device can operate down to 1.4V. This makes the TS272AIDT unsuitable for substitution in applications below 3V.
- Its supply current increases to 1mA per channel, compared to 29µA per channel for the original part. This results in a roughly 35× higher power dissipation, rendering it inappropriate for battery-powered or low-power designs.
- On the other hand, the TS272AIDT offers significantly higher slew rate (5.5V/µs) and gain-bandwidth product (3.5 MHz) than the TLC25L2CDR (2.9V/µs and 110 kHz), enabling better high-frequency signal handling and faster transient response. Its 45mA output current also provides stronger load-driving capability.
If the application operates above 3V and is not power-sensitive, the TS272AIDT can be used as a substitute while improving dynamic performance.
2. TS272BIDT Substitution Conclusion
Similar to the TS272AIDT, the TS272BIDT is package-compatible and shares the same supply voltage range (3V to 16V), allowing it to partially replace the TLC25L2CDR. Key distinctions include:
- The 3V minimum operating voltage restricts its use in low-voltage applications compared to the original 1.4V capability.
- With a supply current of 1mA per channel, power consumption is substantially higher than the original’s 29µA per channel, making it unsuitable for low-power designs.
- The TS272BIDT features a lower input offset voltage of 250µV, outperforming both the TS272AIDT (900µV) and the original TLC25L2CDR (1.1mV). This results in better DC accuracy and reduced error.
- It also provides superior slew rate (5.5V/µs) and gain-bandwidth product (3.5 MHz) compared to the original device, supporting wider bandwidth and higher-speed signal processing.
In applications where precision and bandwidth are prioritized and the supply voltage is above 3V, the TS272BIDT can serve as a viable substitute with upgraded performance.
Analysis ID: F750-ABA9000
Based on part parameters and for reference only. Not to be used for procurement or production.
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