LM4140BCMX-2.0/NOPB

Voltage Reference Overview

The LM4140BCMX-2.0/NOPB is a precision micropower low dropout voltage reference manufactured by Texas Instruments, designed for applications requiring high accuracy and stability in compact designs. This series reference provides a fixed output voltage of 2.048 V with an initial accuracy of 0.1%. It operates within a temperature range of 0°C to +70°C and features a temperature coefficient of 6 ppm/°C. The device is housed in an 8-pin SOIC-Narrow (SOIC-8) surface-mount package. Maximum input voltage is rated at 5.6 V, with a maximum shunt current of 8 mA.

Voltage Reference Feature Summary

• Provides stable 2.048 V reference output with 0.1% initial accuracy
• Low temperature coefficient of 6 ppm/°C ensures thermal stability
• Micropower operation suitable for battery-powered systems
• Compact 8-pin SOIC-Narrow surface-mount packaging

Voltage Reference Applications

• Portable instrumentation requiring precise voltage references
• Battery-operated measurement devices
• Data acquisition systems needing stable analog references
• Industrial process control circuits

Voltage Reference Procurement Notes

Verify the complete part number including the suffix /NOPB to confirm lead-free compliance and specific tape-and-reel packaging configuration. Confirm the manufacturer source is Texas Instruments or authorized distributors to ensure authenticity. Check RoHS status documentation for regulatory compliance requirements in your region. Ensure the operating temperature range of 0°C to +70°C meets your application environmental specifications before procurement.

Voltage Reference Selection Notes

Select this component when a 2.048 V output is required with tight tolerance and low drift over temperature. Compare against other LM4140 variants if different output voltages or packages are needed. Consider the SOIC-8 footprint constraints during PCB layout. Verify that the 8 mA maximum shunt current suffices for your load requirements. Evaluate thermal management needs given the narrow operating temperature range compared to industrial grade alternatives.

Voltage Reference Part Context

This component belongs to the LM4140 family of precision micropower shunt voltage references from Texas Instruments. The family offers various fixed output voltages and accuracy grades. The BC suffix typically denotes specific accuracy and temperature performance tiers within the series. The NOPB suffix indicates a non-pb-free (lead-free) version compliant with RoHS directives. These references are commonly used where space and power consumption are critical design factors.

Voltage Reference Replacement Considerations

Direct substitutes include other LM4140 variants with compatible pinouts and electrical characteristics, such as LM4140BCM-2.0/NOPB or LM4140ACM-2.0/NOPB, provided output voltage and accuracy meet requirements. Verify package compatibility and temperature range differences before substitution.