SY88309BLMG

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The SY88309BLMG is a low power instrumentation amplifier designed for a wide range of applications. It offers excellent precision, low noise performance, wide bandwidth and easy integration with other components. The device has an input amplifier, a reference amplifier, and a gain bypass circuit. The amplifier’s wide input common mode range is well-suited for buffering signals from different sources. The output buffer uses an advanced unity gain state machine capable of driving up to 8mA into a single-ended load. The output can be gain-limited through an external resistor.

The SY88309BLMG is ideally suited for applications such as strain gauge bridges, medical instrumentation, portable scopes, medical telemetry, power systems, communications receivers, and data acquisition systems. The amplifier’s high-gain accuracy facilitates precision monitoring and error correction protocols. The device’s wide input common mode voltage range and low-noise output make it well-adapted to electroencephalography and similar applications.

The SY88309BLMG architecture requires only a single-supply environment. It draws minimal current, which reduces heat generation and circuit noise. The amplifier’s current-limited output eliminates the need for an external current limiter. The internal input buffer pre-calibrates the circuit prior to recognizing the external gain setting, helping to keep distortion characteristics of the device consistent over time. The input and reference amplifier have internal biasing circuitry that provides a cloud of bias current at the input to offset any fields generated by the amplifier.

The SY88309BLMG is based on a patented architecture that combines an input amplifier, a buffer amplifier, and a reference amplifier. The buffer amplifier is used to minimize the effects of common-mode noise and to optimizedimensions.com provide a high-speed and high-sensitivity access point. The reference amplifier is designed to provide a precise common-mode gain compensation. The user can further adjust the gain accuracy in order to achieve near-zero offset, low noise and low distortion.

The gain of the SY88309BLMG can be adjusted through two external resistors, with four ranges available. The user can set the gain range by connecting a resistor between the 60K and 30K of the gain output. The gain can be set from 1 to 10V/V. The second resistor, connected to the 55K and 30K, sets the gain from 0.1 to 1V/V. In either case, the actual gain is within 0.1% of the output setting and is adjustable from 0.5 to 10V/V.

The SY88309BLMG is capable of a slew rate of 600V/μs and can reach frequencies greater than 100kHz. The low power operation makes the device suitable for portable and battery operated applications. The input voltage noise density is as low as 1nV/√Hz and the current noise is 0.1pA/√Hz. The amplifier also has excellent CMRR characteristics, with typical values of 130dB and guaranteed values of 125dB.

The SY88309BLMG is an ideal solution for applications where precision performance and low power consumption are paramount. Its wide input common mode range allows it to be used in a variety of systems, and its adjustable gain provides a wide range of gain control. The device’s high-speed operation and low-noise performance make it well suited for data acquisition systems and medical instrumentation.

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