Operational amplifier GX44246 replaces MAX44246/OPA2189/OPA2192 for application in ultra-high precision comparator

Ultra high precision comparator is a device that mainly realizes weak signal threshold detection, level judgment, and fast triggering. This type of scenario requires high precision, stability, and anti-interference ability of the comparator. This article recommends a domestically produced high-precision zero drift, low-noise, track to track input operational amplifier GX44246 for use in ultra high precision comparators. GX44246 can replace MAX44246/OPA2189/OPA2192 to meet the stringent requirements of ultra high precision scenarios.

GX44246 is a new generation 36V zero drift amplifier, which provides excellent DC precision performance, including low offset (± 5 μ V, typical value), near zero offset drift (± 20nV/° C, typical value), timeout and temperature, rail to rail input/output, and 6MHz bandwidth. It has unique features such as power rail differential input voltage range, high output current (± 40mA), high 1nF high-capacity load drive, and high slew rate (9V/μ s), making this domestic amplifier a robust and high-performance working amplifier for high-voltage industrial applications.

The main features of operational amplifier GX44246 are as follows:

Ultra low offset voltage: ± 1 µ V

Ultra low temperature float: ± 10nV/℃

Low noise: 8.8 nV/√ Hz at 1 kHz; 0.1Hz to 10Hz

Noise: 0.19uVpp

High common mode rejection ratio: 150dB

Low bias current: ± 500pA

Rail to rail output

Bandwidth: 5MHz GBW

High voltage swing rate: 7V/µ s

Low static current: 0.6mA per channel

Wide voltage range: ± 2.25V to ± 18V, 4.5V to 36V

Integrated high anti-interference EMI/RFI filter

Differential input voltage range to power rail

High capacitance load driving capability: 1nF

Industry standard packaging: SOIC-8

Replace MAX44246/OPA2189/OPA2192