LM4040CIZ-4.1 Precision Voltage Reference 4.1V TO-92 – Texas Instruments

Texas Instruments LM4040CIZ-4.1 Voltage Reference – High Accuracy 4.1V TO-92 Regulator

The LM4040CIZ-4.1 from Texas Instruments is a precision micropower shunt voltage reference, designed to provide a highly stable 4.1V output over a wide range of operating conditions. Engineered for accuracy, the device features a factory-trimmed voltage output with an initial tolerance as tight as ±0.5%. This eliminates the need for external calibration in most applications and ensures consistent performance in high-precision analog systems.

Its low dynamic impedance and excellent temperature coefficient (<50 ppm/°C) ensure performance stability across temperature ranges and load variations. The wide operating current range from 60 µA to 15 mA allows flexibility for both low-power designs and higher current applications. The LM4040CIZ-4.1 is part of the trusted Texas Instruments voltage reference family and is featured in the curated portfolio of IC Manufacturer for industrial-grade applications.

Electrical Characteristics and Technical Specifications

Why Choose LM4040CIZ-4.1 Over Other Voltage References?

Compared to other voltage references in its class, the LM4040CIZ-4.1 stands out with its combination of low current consumption, tight voltage tolerance, and robust packaging. It is ideal for systems where **precision**, **reliability**, and **temperature stability** are essential. Unlike bulky voltage regulators, this shunt reference is compact and easy to integrate into space-constrained analog circuits, especially where calibration must be avoided.

Key Features and Functional Advantages

• Factory-Trimmed Accuracy: Ensures precision without the need for external resistors or adjustment.
• Wide Current Range: Supports both low-power and high-load applications with ease.
• Thermal Stability: Maintains performance over industrial temperature ranges.
• Low Dynamic Impedance: Minimizes output voltage change with varying loads.
• Texas Instruments Quality: Backed by TI’s rigorous testing and long lifecycle reliability.

Typical Application Scenarios

• High-Accuracy ADC/DAC Reference
• Industrial Measurement Systems
• Portable Instrumentation
• Battery-Powered Devices
• Analog Calibration Standards

Frequently Asked Questions (FAQ)

What does the “CIZ” suffix in LM4040CIZ-4.1 indicate?

“CIZ” refers to a particular accuracy grade and the TO-92 package. The “C” grade typically offers ±0.5% initial accuracy, while the “Z” indicates lead-free packaging.

Can the LM4040CIZ-4.1 be used in battery-operated devices?

Yes, with a minimum operating current of just 60 µA, the device is highly suitable for battery-powered and energy-sensitive designs.

Is the output of the LM4040CIZ-4.1 adjustable?

No, it is a fixed precision shunt reference that outputs a nominal 4.096V, specifically trimmed and tested for accuracy.

What makes this voltage reference suitable for industrial applications?

Its excellent temperature stability, low dynamic impedance, and wide current range make it ideal for rugged and precision industrial applications.

How does it compare with zener diode references?

Unlike zener-based references, the LM4040CIZ-4.1 offers far better temperature stability, accuracy, and lower noise, making it ideal for modern analog systems.