OP279GS-REEL7

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In terms of instrumentation amplifiers, the OP279GS-REEL7 is an exceptionally versatile device that can iteratively improve the accuracy and performance of measurement systems, particularly those in medical, biological, industrial and other related settings. It is a low noise, rail-to-rail output amplifier with a floating, internal ground referrable input stage, designed to provide the highest available accuracy for current measurements and to provide low offset for dc applications. The device is well-adapted to high-side current sensing and other lighting circuit applications where the traditional ground connection is not possible.

As a linear amplifier, the OP279GS-REEL7 offers a set of sophisticated features, including low offset and drift, wide common-mode range, an adjustable common-mode rejection (CMR) ratio, and high output current drive. The device features a wide common-mode voltage range (−2 V to +16 V) and an adjustable CMRR (up to 80 dB). In addition, the device is designed to provide low-noise performance (14dB at 10kHz) and wide bandwidth (3 MHz) with a wide open-loop gain. The device also has excellent transient response and slew rate control.

The OP279GS-REEL7 gains its operational amplification through the use of two differential transistor pair outputs, one in place of the traditional operational amplifier common-mode input stage. This substitutes two transistors in place of the traditional operational amplifier input stage, thereby increasing power savings and common-mode rejection ratio. Additionally, the device can be used to reduce the power supply noise for electronically-sensitive signals that sometimes require buffering or low-level signal conditioning. The device contains internal ESD protection as well as latch-up immunity, thus making it an ideal choice for products that are battery-powered.

In terms of its working principle, the OP279GS-REEL7 is an operational amplifier with a floating, internal ground referable input stage that is built using current mirrors to reference inputs to the virtual ground. This internal ground referable input stage is useful for high impedance or higher impedance input sources, and generates a low voltage, high current output. Additionally, the device offers a wide common-mode range making it ideally suited for medical and industrial currents. The device can also be used in application that require low offset in both dc and wide-band applications. Its power supply rejection and short-circuit current limits ensure reliable operation even in noisy environments.

To summarize, the OP279GS-REEL7 is an exceptionally versatile linear amplifier, designed to improve the accuracy and performance of measurement systems in both medical, biological and industrial settings. Its internal ground referable input stage – built using current mirrors – offers the benefit of a wide common-mode range, excellent common-mode rejection, and low voltage, high current output. Furthermore, the device is designed to offer low offset, low drift, and offering robust protection features and power savings for applications that require buffering or low-level signal conditioning.

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