MAX4069AUB+

MAXIM INTEGRATED PRODUCTS  MAX4069AUB+  电流检测放大器, 1个放大器, 2.4 µA, µMAX, 10 引脚, -40 °C, 125 °C

The is a bidirectional, current sense amplifier with reference in 10 pin µMAX package. The wide 1.35V to 24V input common-mode voltage range is independent of the supply voltage ensuring that the current-sense feedback remains accurate even when connected to a battery pack in deep discharge. It has a low 100µA supply current that reduces to only 10µA typ in shutdown mode. To achieve maximum flexibility, an external current-sense resistor is used along with a gain select pin GSEL to choose either 50V/V or 100V/V. Drive GSEL low to select gain of 50V/V or drive GSEL high to choose gain of 100V/V. A single output pin continuously monitors the transition from charge to discharge and avoids the need for a separate polarity output. Thus it is ideal for monitoring battery charge and discharge currents.

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Supply voltage range is 2.7V to 24V

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Operating temperature range from -40°C to 125°C

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Total output error less than 1.5%

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Adjustable internal precision reference

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CMRR of 120dB, input bias current is 2.4µA and PSRR of 120dB

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Load regulation of 2mV/mA at IREFOUT = 0 to 500µA & 4mV/mA at IREFOUT = 0 to -100µA

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100KHz -3dB bandwidth at gain = 50V/V