Replacement Components to ISL28213FBZ-T7: BU7486F-E2 and NCS20032DR2G

Original Part

ISL28213FBZ-T7

Renesas Electronics Corporation

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

Alternative Part

BU7486F-E2

Rohm Semiconductor

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

NCS20032DR2G

onsemi

Standard (General Purpose) Amplifier 2 Circuit Rail-to-Rail 8-SOIC

1. Substitution Conclusion for BU7486F-E2 Direct replacement of the ISL28213FBZ-T7 with the BU7486F-E2 is not recommended. The key differences are as follows: First, its minimum supply voltage is 3V, which is higher than the original part’s 1.8V, making it incompatible with low-voltage systems operating between 1.8V and 3V. Second, its quiescent current is as high as 6mA, significantly greater than the original’s 180µA (total for dual channels). This would substantially increase system power consumption and is unsuitable for power-sensitive applications such as battery-powered devices. Lastly, its input offset voltage is 1mV, double that of the original (500µV), introducing greater DC error and degrading accuracy in precision amplification circuits. Although the BU7486F-E2 offers higher bandwidth (10 MHz) and slew rate (10 V/µs), making it suitable for higher-speed signals, the fundamental incompatibilities in supply voltage and power consumption preclude its use as a direct substitute.

2. Substitution Conclusion for NCS20032DR2G The NCS20032DR2G is a viable and more suitable replacement for the ISL28213FBZ-T7. Key distinctions include: its gain-bandwidth product (7 MHz) and slew rate (8 V/µs) are notably higher than the original part’s (2 MHz, 1 V/µs), providing faster signal response and a wider operating frequency range. Additionally, its output drive current of 96mA is substantially stronger than the original’s 22mA, enabling it to directly drive heavier loads such as speakers or motors. While its quiescent current (550µA total for dual channels) is approximately three times that of the original, this remains acceptable in many applications. Moreover, critical parameters such as supply voltage range (1.7V–5.5V) and input offset voltage (500µV) are essentially identical to the original. The package is also the same, allowing for a pin-to-pin replacement in most cases while delivering improved performance.

Analysis ID: CE0B-A69F000

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