This video features a "Chip of the Day" teardown and basic functional test of an old Harris Semiconductor HA5190 operational amplifier. The component, characterized by its large metal can package and 150 MHz bandwidth, is internally examined to reveal a single, complex bipolar die. The video then demonstrates a simple circuit setup to measure the op-amp's slew rate. Performance testing shows the HA5190 exceeding its datasheet specification of 200 V/µs, achieving 246 MV/s (megavolts per second), a unit clarified to be equivalent to volts per microsecond. The video concludes by highlighting the op-amp's significant power consumption and resulting heat generation, reaching case temperatures of 42-44°C.
Harris Semiconductor HA5190 Op-Amp: Teardown and Performance Test
0:07 Introduction to the HA5190: The video introduces the Harris Semiconductor HA5190, a large and fast (150 MHz bandwidth) operational amplifier housed in a unique metal can package with minimal pins utilized for basic operation (power, two inputs, one output).
1:01 Internal Examination: After grinding off the top of the package, the speaker reveals a single, complex bipolar die inside, dispelling expectations of multiple components or external elements within the large package.
1:55 Slew Rate Test Setup: A simple non-inverting op-amp circuit with a 1k resistor feedback and a 200-ohm load is used to evaluate the device's slew rate performance.
2:24 Datasheet Specifications: The datasheet specifies a slew rate of 200 V/µs (volts per microsecond) and a settling time of 70 nanoseconds.
4:00 Exceeding Slew Rate Expectations: The measured slew rate is 246 MV/s (megavolts per second), which is demonstrated to be numerically equivalent to 246 V/µs and thus exceeds the manufacturer's specification.
5:00 Thermal Characteristics: As a bipolar op-amp, the device draws significant current (18 mA on negative rail, 21 mA on positive rail) and generates considerable heat, reaching a case temperature of 42-44°C during operation.