NJU9101MLE-TE1

Analog Front End (AFE) Overview

The NJU9101MLE-TE1 is a low-power analog front-end IC designed for micro-power sensing applications, particularly electrochemical sensors. It integrates two low-power operational amplifiers (OPA and OPB), a programmable gain pre-amplifier, a 16-bit ADC, and system calibration circuits. Operating within a supply voltage range of +2.4V to +3.6V, the device achieves an average current consumption of approximately 5µA when OPA and OPB are active. Key electrical specifications include a typical input offset voltage of ±300µV for the amplifiers and a low noise performance of 1.3µVpp (0.1Hz to 10Hz). The IC features I2C interface with selectable slave addresses and is housed in a compact EQFN-24-LE package.

Analog Front End (AFE) Feature Summary

• Integrated dual-channel low-power op-amps with RF immunity and low offset voltage (±300µV max).

Analog Front End (AFE) Applications

• Gas monitors
• Blood glucose meters
• Current sensing systems

Analog Front End (AFE) Procurement Notes

Verify the specific ordering suffix TE1 corresponds to the required taping form (Reel) as indicated in the manufacturer's ordering information. Confirm that the EQFN-24-LE package outline matches the PCB footprint requirements. Ensure compatibility with the specified I2C bus load conditions for standard or fast mode operation before finalizing procurement.

Analog Front End (AFE) Selection Notes

Select this component for applications requiring ultra-low power consumption in portable sensor devices. The built-in potentiostat functionality simplifies gas sensor interface design. Consider the 16-bit ADC resolution and programmable gain options (1V/V to 8V/V) when designing signal conditioning stages. Verify that the operating temperature range of -40°C to +85°C meets the environmental requirements of the target application.

Analog Front End (AFE) Part Context

The NJU9101 belongs to the NJU9101 series of analog front-ends from Nisshinbo Micro Devices. It is specifically engineered to bridge the gap between weak sensor signals and microprocessors, offering a complete smart-sensor module solution. The MLE designation indicates the EQFN-24-LE package variant.

Analog Front End (AFE) Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate alternative AFEs based on pin compatibility, supply voltage range, and current consumption metrics if substitution is necessary.