NJU9103KV1-TE3

Analog Front End (AFE) Overview

The NJU9103KV1-TE3 is an analog front-end (AFE) featuring a high-gain programmable gain amplifier (PGA) and a 16-bit delta-sigma ADC. It operates on a +2.7V to +3.6V supply within -40°C to +125°C. The device supports data rates from 0.814ksps to 6.51ksps with differential, single-ended, or pseudo-differential inputs. PGA gain ranges from 1V/V to 512V/V via two stages. Internal calibration corrects offset and gain drift. Communication is handled via SPI. It is available in DFN8 (ESON8-V1) and SSOP8 packages.

Analog Front End (AFE) Feature Summary

• Integrated 16-bit ΔΣ ADC with no missing codes
• Dual-stage PGA providing total gain up to 512V/V
• Internal system calibration for offset and gain drift correction
• SPI interface supporting data rates up to 6.51ksps

Analog Front End (AFE) Applications

• Pressure sensors
• Flowmeters
• PLC systems
• Digital panel meters
• Thermostats

Analog Front End (AFE) Procurement Notes

Verify the ordering suffix KV1 corresponds to the DFN8 (ESON8-V1) package with Sn-2Bi terminal finish. Confirm RoHS compliance and halogen-free status as specified for this variant. Ensure the required quantity aligns with the standard taping form of 3,000 pieces per reel when sourcing this specific part number configuration.

Analog Front End (AFE) Selection Notes

Select based on required gain range; PGA1 offers gains up to x128 while PGA2 provides up to x4. Choose between single-ended (PGA2 only) or differential modes depending on sensor type. Consider data rate requirements against noise performance; higher speeds reduce noise-free bits. Utilize internal CHOP mode for real-time offset cancellation if precision is critical.

Analog Front End (AFE) Part Context

This component belongs to the NJU9103 series of analog front-ends designed for low-power, high-precision signal conditioning. The KV1 suffix specifically denotes the DFN8 (ESON8-V1) surface-mount package variant. It integrates the amplification and conversion stages to simplify PCB layout for bridge sensor applications.

Analog Front End (AFE) Replacement Considerations

The NJU9103V is the equivalent device in an SSOP8 package. Verify pin compatibility and thermal dissipation differences between the DFN8 and SSOP8 footprints before substitution.