Replacement Components to TSV6292IDT: APX358SG-13 and BU7242SF-E2

Original Part

TSV6292IDT

STMicroelectronics

CMOS Amplifier 2 Circuit Rail-to-Rail 8-SOIC

Alternative Part

APX358SG-13

Diodes Incorporated

Standard Amplifier 2 Circuit Rail-to-Rail 8-SOP

BU7242SF-E2

Rohm Semiconductor

CMOS Amplifier 2 Circuit Rail-to-Rail 8-SOP

1. APX358SG-13 Substitution Conclusion Direct substitution is not feasible. Although the package is compatible and the maximum operating voltage is identical, the two devices differ fundamentally in key electrical characteristics. The quiescent current of the APX358SG-13 (190µA per channel) is significantly higher than that of the TSV6292IDT (29µA total), which would drastically reduce battery life in portable applications. Its input bias current (10nA) is four orders of magnitude greater than the original's (1pA), introducing non-negligible input error current and voltage offset in applications like high-impedance sensor signal conditioning. Furthermore, its minimum operating voltage of 2.5V cannot cover the original device's low-voltage operating range down to 1.5V. The APX358SG-13 is suitable only for general-purpose applications where power consumption, precision, and low-voltage operation are not critical.

2. BU7242SF-E2 Substitution Conclusion Substitution is conditional and requires careful evaluation of output drive capability. The BU7242SF-E2 closely resembles the original part in core aspects: CMOS process, ultra-low input bias current (1pA), wide supply voltage range (1.8V to 5.5V), and package footprint. Its quiescent current (180µA), while slightly higher, remains within the same order of magnitude, making it a closer alternative. However, its maximum output current (12mA) is only about one-sixth that of the original (74mA). This severely limits its ability to drive low-impedance loads (e.g., speakers, motors, long cables) or large capacitive loads. In circuits requiring robust output drive, this could lead to waveform clipping, excessive voltage drop, or complete failure. Substitution is acceptable if the application circuit presents a light load (e.g., high-impedance input stage, signal buffering). It is not suitable for driving heavier loads.

Analysis ID: CDC8-1DD7000

Based on part parameters and for reference only. Not to be used for procurement or production.