Key facts
- Brand
- Texas Instruments
- Model
- LM4040
- Industry
- Industrial
- Documents
- 4
- Languages
- EN
- Last added
- 2012-07-05
Start here
Texas Instruments LM4040 Precision Micropower Shunt Voltage Reference Datasheet
The LM4040 series consists of versatile, easy-to-use fixed-output shunt voltage references available in 2.048 V, 2.5 V, 3 V, 4.096 V, 5 V, and 10 V options. These devices offer tight output tolerances ranging from a maximum of 0.1% for A grade to 1.0% for D grade, with low temperature coefficients up to 150 ppm/°C depending on the grade.
Packaged in space-saving SOT-23 (DBZ), SC-70 (DCK), and TO-92/TO-226 (LP) formats, the LM4040 requires a minimum current of only 45 pA typical. The device is stable with all capacitive loads without requiring an external output capacitor, making it ideal for battery-powered equipment, data-acquisition systems, and instrumentation applications.
Texas Instruments LM4040 specifications
| Fixed Output Voltages | 2.048 V, 2.5 V, 3 V, 4.096 V, 5 V, and 10 V |
|---|---|
| Max Output Tolerance (A Grade) | 0.1% |
| Operating Temperature Range (Extended) | -40°C to 125°C |
Source: Texas Instruments LM4040 Precision Micropower Shunt Voltage Reference Datasheet
All Texas Instruments LM4040 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
- Texas Instruments LM4040 Precision Micropower Shunt Voltage Reference Datasheet 39 p
- Texas Instruments LM4040 Precision Micropower Shunt Voltage Reference Datasheet 39 p
- Texas Instruments LM4040 Precision MicroPower Shunt Voltage Reference Datasheet 39 p
- Texas Instruments LM4040 Precision MicroPower Shunt Voltage Reference Datasheet 33 p
Questions answered in these manuals
What is the minimum operating current for the LM4040?
The device requires a minimum current of 45 pA to operate.
From: Texas Instruments LM4040 Precision Micropower Shunt Voltage Reference Datasheet
What is the maximum continuous cathode current?
The maximum continuous cathode current is 25 mA.
From: Texas Instruments LM4040 Precision Micropower Shunt Voltage Reference Datasheet
What is the minimum cathode current required for operation?
The device requires a minimum cathode current of 45 pA (typ).
From: Texas Instruments LM4040 Precision Micropower Shunt Voltage Reference Datasheet
What is the minimum cathode current required for the LM4040?
The device requires a minimum cathode current of 45 pA typical.
From: Texas Instruments LM4040 Precision MicroPower Shunt Voltage Reference Datasheet
What temperature range does the LM4040 operate over?
Standard grades operate from –40 °C to 85 °C, while the LM4040xQ grade operates from –40 °C to 125 °C.
From: Texas Instruments LM4040 Precision MicroPower Shunt Voltage Reference Datasheet
What is the minimum cathode current required for the LM4040?
The device requires a minimum cathode current of 45 pA typical.
From: Texas Instruments LM4040 Precision MicroPower Shunt Voltage Reference Datasheet