INA848ID
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Texas Instruments INA848 Fixed-Gain Instrumentation Amplifier is optimized for high-precision measurements, such as very small, fast, differential input signals. TI’s super-beta topology provides a very low input bias current and current noise. The well-matched transistors help achieve a very low offset and offset drift. Matching of the internal resistors yields a high common-mode rejection ratio of 132dB across the full input-voltage range and a very low gain drift error of 5ppm/C (max).
The current-feedback topology of the INA848 produces a wide bandwidth of 2.8MHz at a fixed gain of 2000, thereby eliminating the need for subsequent gain stages. The very-low noise floor of 1.3nV/√Hz minimizes the impact on the equivalent number of bits (ENOB) when interfacing with high-resolution analog-to-digital converters (ADCs). The INA848 provides the flexibility of adding filters between the gain stages (pins 2 and 3) to maintain adequate signal integrity.
These unique features of the Texas Instruments INA848 make this device an excellent choice for applications requiring high-precision measurements, such as high-end medical instrumentation, electroencephalography, vibration sensing, and displacement measurements. This device is designed for 8V to 36V single supplies or ±4V to ±18V on dual supplies.