Skip to main content
Log in
Texas Instruments LM4040CIM3X-8.2 — Analog & Data Acquisition

LM4040CIM3X-8.2 Shunt Reference, 8.192 V ±0.5%, SOT-23-3

MPNLM4040CIM3X-8.2
End of Life

Texas Instruments LM4040 series precision shunt voltage reference, fixed 8.192 V output, ±0.5% tolerance, 100 ppm/°C temperature coefficient, 95 µA cathode current, SOT-23-3 package, Tape & Reel.

$1.4800Ref. price · indicative, final on quote
Texas Instruments LM4040CIM3X-8.2 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM4040CIM3X-8.2 specifications
ParameterValue
Output typeFixed
MountingSurface Mount
Reference typeShunt
Voltage - output (Min (Fixed))8.192V
Output current15 mA
Current - cathode95 µA
Operating temperature-40°C~85°C(TA)
PackageTape & Reel (TR)
Tolerance±0.5%
CaseTO-236-3, SC-59, SOT-23-3
Noise - 10Hz to 10kHz130µVrms
Temperature coefficient100ppm/°C

Product details

8.192 V shunt reference — the ADC reference rail decision

The LM4040CIM3X-8.2 is a fixed 8.192 V shunt voltage reference from the LM4040 family, a standard choice for precision ADC reference rails in industrial and instrumentation designs.

Shunt topology — biasing and cathode current budget

As a shunt reference, it requires an external series resistor from the supply to the cathode; the 95 µA minimum cathode current sets the lower bound for the bias resistor calculation. The 15 mA maximum output current limits how many ADC reference inputs or comparators can share the same reference without exceeding the thermal budget in the SOT-23-3 package.

Frequently asked questions

What is the output voltage tolerance of LM4040CIM3X-8.2?

Tolerance determines voltage reference accuracy critical for precision circuits.

Where can I buy LM4040CIM3X-8.2 in stock?

Stock availability directly impacts procurement speed and production schedules.

Is LM4040CIM3X-8.2 a direct replacement for LM4040-8.2?

Cross-compatibility avoids redesign and reduces part qualification effort.

What is the current price of LM4040CIM3X-8.2?

Pricing influences BOM cost and sourcing decisions.

What is the package and pinout of LM4040CIM3X-8.2?

Physical dimensions and pin mapping ensure correct PCB layout and assembly.

Is LM4040CIM3X-8.2 obsolete or still in production?

Lifecycle status determines long-term availability and risk of redesign.