LM4041BIZ-1.2/NOPB Texas Instruments Integrated Circuit (Other) In Stock
LM4041BIZ-1.2/NOPB is a precision shunt voltage reference from Texas Instruments with a 1.225 V nominal output and tight ±0.5% initial accuracy. It operates as a two-terminal device sinking up to 12 mA and is specified over the industrial -40°C to +85°C temperature range. Supplied in a through-hole TO-92 package for easy prototyping and low-cost production boards.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- LM4041BIZ-1.2/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.6011(MOQ 100)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 1.225 V nominal output with ±0.5% initial accuracy (1.2146 V min, 1.2354 V max) for precise ADC reference and bias generation
- Two-terminal shunt configuration simplifies circuit design with no enable or trim pins required
- Sinks up to 12 mA allowing use across a wide range of series resistor values and load conditions
- TO-92 through-hole package enabling hand-soldering, breadboard prototyping, and low-volume production without SMT equipment
Applications
The LM4041BIZ-1.2/NOPB is used as an ADC reference voltage source in data acquisition circuits where a stable sub-1.5 V reference below the supply rail is needed. It also sets bias and threshold levels in battery-powered comparator circuits and precision signal conditioning boards for industrial sensors. Portable instrument designers use it as a low-cost alternative to bandgap references in designs where the 1.225 V Brokaw cell output directly biases instrumentation amplifier gain networks.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | TWO TERMINAL VOLTAGE REFERENCE |
| JESD-30 Code | O-PBCY-T3 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Voltage-Max | 1.2354V |
| Output Voltage-Min | 1.2146V |
| Output Voltage-Nom | 1.225V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SIP3,.1,50 |
| Package Shape | ROUND |
| Package Style | CYLINDRICAL |
| Qualification Status | Not Qualified |
| Surface Mount | NO |
| Technology | BIPOLAR |
| Temp Coef of Voltage-Max | 100ppm/°C |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 1.27mm |
| Terminal Position | BOTTOM |
| Trim/Adjustable Output | NO |
| Voltage Tolerance-Max | 0.2% |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Mainland China |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How tight is the output voltage tolerance of the LM4041BIZ-1.2/NOPB across its full operating range?
The LM4041BIZ-1.2/NOPB holds output voltage between 1.2146 V minimum and 1.2354 V maximum, a ±0.5% initial accuracy window around the 1.225 V nominal. Over the -40°C to +85°C industrial temperature range the temperature coefficient is typically 100 ppm/°C, making it suitable for 8-bit to 10-bit ADC reference applications without trimming.
What series resistor value is needed to bias the LM4041BIZ-1.2/NOPB from a 3.3 V supply?
With a 3.3 V supply and a minimum operating current of about 0.1 mA and maximum of 12 mA, the series resistor should fall between 175 ohm and 32 kohm. A typical 10 kohm resistor sets a quiescent current of roughly 200 µA, giving a good balance between regulation and power consumption in battery-operated designs.
When is the LM4041BIZ-1.2/NOPB a better fit than the TL431 for a low-voltage reference circuit?
The LM4041BIZ-1.2/NOPB operates down to a 1.225 V supply headroom—much lower than the TL431's minimum 2.5 V output—making it the preferred choice when the supply rail is below 2.5 V or when a 1.225 V reference is needed directly. Its two-terminal shunt configuration also simplifies board layout compared to the TL431's three-terminal cathode-reference-anode topology.
Can the TO-92 package of the LM4041BIZ-1.2/NOPB be used on a solderless breadboard for rapid prototyping?
Yes. The TO-92 through-hole package has 0.1-inch (2.54 mm) lead spacing compatible with standard solderless breadboards. Leads are typically 28 AWG and can be inserted directly, making the LM4041BIZ-1.2/NOPB a convenient 1.225 V reference for bench prototyping before committing to an SMT footprint in the final PCB design.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $0.8500 | $85.00 |
| 250+ | $0.8000 | $200.00 |
| 500+ | $0.7800 | $390.00 |
| 10000+ | $0.7174 | $7174.00 |
| 100000+ | $0.6011 | $60110.00 |
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