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Texas Instruments LT1004CDRG4-2-5 — Discrete Semiconductors
Texas Instruments

LT1004CDRG4-2-5 Shunt Voltage Reference, 2.5V ±0.8% 8-SOIC

MPNLT1004CDRG4-2-5
End of Life

Texas Instruments LT1004CDRG4-2-5, shunt voltage reference, 2.5V fixed output, ±0.8% tolerance, 20 µA min cathode current, 20 mA output, 8-SOIC surface mount, 0°C to 70°C.

$1.23Ref. price · indicative, final on quote
LT1004CDRG4-2-5 datasheet
Packaging8-SOIC (0.154", 3.90mm Width)
StockContact for availability
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Specifications

LT1004CDRG4-2-5 Technical Specifications
ParameterValue
Output typeFixed
Mounting typeSurface Mount
Reference typeShunt
Voltage - output (Min (Fixed))2.5V
Current - output20 mA
Current - cathode20 µA
Operating temperature0°C ~ 70°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
Tolerance±0.8%
Case8-SOIC (0.154\", 3.90mm Width)
Noise - 10Hz to 10kHz120µVrms
Temperature coefficient20ppm/°C Typical

Product details

2.5 V shunt reference in an 8-SOIC — what the ratings mean for the BOM

The Texas Instruments LT1004CDRG4-2-5 is a 2.5 V fixed-output shunt voltage reference in an 8-SOIC surface-mount package. It delivers a ±0.8% initial tolerance and a typical temperature coefficient of 20 ppm/°C, making it a straightforward choice for a precision bias or ADC reference in commercial-temperature equipment — think benchtop instruments, power-supply monitoring, or general-purpose data-acquisition boards where the ambient stays between 0°C and 70°C. The shunt topology means it behaves like a two-terminal Zener: you bias it through a resistor from a higher supply, and the reference draws whatever cathode current it needs to regulate the output. The minimum cathode current is 20 µA, and the maximum output current is 20 mA — that window sets the resistor value and the load budget. Stay above 20 µA through the device and the output holds 2.5 V within tolerance; pull more than 20 mA from the output and regulation drops out.

Lifecycle and sourcing

The LT1004CDRG4-2-5 is listed as Active with RoHS3 compliance.

Frequently asked questions

Is LT1004CDRG4-2-5 obsolete?

No. The lifecycle status is Active, with RoHS3 compliance. There is no last-time-buy or discontinuation notice on this part.

What is the cathode current (Imin) for LT1004?

The minimum cathode current is 20 µA. The device regulates the output at 2.5 V as long as the current through it stays above that threshold and below the 20 mA maximum output.

How to use LT1004CDRG4-2-5 in a circuit?

Connect a resistor from a positive supply (e.g., 5 V) to the cathode (the output pin). The anode goes to ground. The resistor value is chosen so that the current through the LT1004 is between 20 µA and 20 mA at all load conditions. The output is the cathode node — it holds at 2.5 V relative to ground.