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Texas Instruments LM4041A12IDBZRG4 — Analog & Data Acquisition

LM4041A12IDBZRG4 Shunt Voltage Reference, 1.225 V ±0.1%

MPNLM4041A12IDBZRG4
End of Life

Texas Instruments LM4041A12IDBZRG4, precision shunt voltage reference, fixed 1.225 V output, ±0.1% tolerance, 20 µVrms noise, 12 mA output, -40°C to 85°C, SOT-23-3.

Texas Instruments LM4041A12IDBZRG4 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM4041A12IDBZRG4 specifications
ParameterValue
Output typeFixed
MountingSurface Mount
Reference typeShunt
Voltage - output (Min (Fixed))1.225V
Output current12 mA
Current - cathode80 µA
Operating temperature-40°C~85°C(TA)
PackageTape & Reel (TR)
Tolerance±0.1%
CaseTO-236-3, SC-59, SOT-23-3
Noise - 10Hz to 10kHz20µVrms
Temperature coefficient100ppm/°C

Product details

Precision 1.225 V shunt reference in SOT-23-3

The Texas Instruments LM4041A12IDBZRG4 is a precision shunt voltage reference delivering a fixed 1.225 V output with a ±0.1% tolerance. This is the exact voltage and grade a designer needs when the ADC reference or comparator threshold must hold tight across temperature and load. As a shunt (two-terminal) reference, it behaves like a Zener diode: a series resistor sets the bias current, and the device sinks current to regulate the output. The 12 mA output current capability and 80 µA minimum cathode current define the resistor value and the load range the reference can support.

Noise and temperature drift — the design margin specs

Supplied in the SOT-23-3 package (also listed as TO-236-3 / SC-59), this is a three-pin surface-mount device with a 0.95 mm pin pitch.

Frequently asked questions

What are the direct replacements or equivalents for LM4041A12IDBZRG4?

The base product number LM4041 covers multiple voltage and tolerance options; the A12 suffix specifically denotes 1.225 V with ±0.1% tolerance. For a drop-in substitute, confirm the output voltage and tolerance grade match the BOM requirement.