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Texas Instruments LM4040C30ILPR — Analog & Data Acquisition

LM4040C30ILPR Shunt Voltage Reference, 3V ±0.5%, TO-92-3

MPNLM4040C30ILPR
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Texas Instruments LM4040C30ILPR, shunt voltage reference, fixed 3V output, ±0.5% tolerance, 15 mA output, 82 µA cathode current, 35 µVrms noise, TO-92-3 through-hole package, -40°C to 85°C.

$1.1100Ref. price · indicative, final on quote
PackagingTO-226-3, TO-92-3 (TO-226AA) Formed Leads
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LM4040C30ILPR specifications
ParameterValue
Output typeFixed
MountingThrough Hole
Reference typeShunt
Voltage - output (Min (Fixed))3V
Output current15 mA
Current - cathode82 µA
Operating temperature-40°C~85°C(TA)
PackageCut Tape (CT); Tape & Box (TB)
Tolerance±0.5%
CaseTO-226-3, TO-92-3 (TO-226AA) Formed Leads
Noise - 10Hz to 10kHz35µVrms
Temperature coefficient100ppm/°C

Product details

It's a three-terminal device in a through-hole TO-92-3 package, designed for low-dropout, low-noise analog rails where a series reference would waste headroom.

Noise and temperature drift — the real-world specs

Wideband noise is specified at 35 µVrms over 10 Hz to 10 kHz, which is clean enough for a 10-bit or 12-bit ADC reference without external filtering in most designs. Temperature coefficient is 100 ppm/°C, so the output shifts about 0.3 mV over the full -40°C to 85°C range — acceptable for general-purpose precision, but a tighter TC part would be needed for 16-bit metrology.

Frequently asked questions

What is the tolerance of LM4040C30ILPR?

Initial tolerance is ±0.5%.