ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC VREF SHUNT 0.1% SOT23-3
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：2.048V
- Voltage - Output (Max)：-
- Current - Output：15 mA
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3
- Grade：-
- Qualification：-
Download product information
Overview
The LM4040A20IDBZRG4 is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 2.048 V with an initial accuracy of 0.1%. The device operates within a temperature range of -40°C to +125°C and features a temperature coefficient of 150 PPM/°C. Electrical characteristics include a maximum shunt current of 15 mA and a minimum operating current of 75 µA. It is housed in a surface-mount SOT-23-3 package.
Feature Summary
- Provides high-precision voltage regulation with 0.1% initial accuracy for sensitive analog circuits.
- Operates over an extended industrial temperature range from -40°C to +125°C.
- Designed for low-power applications with micropower consumption capabilities.
Applications
- Portable battery-powered instrumentation
- Data acquisition systems requiring stable reference voltages
- Temperature measurement circuits
Procurement Notes
Verify the specific suffix 'RG4' indicates RoHS compliance and tape-and-reel packaging configuration. Confirm the 'A' grade designation corresponds to the required 0.1% initial accuracy specification. Ensure the SOT-23-3 footprint matches the target PCB layout requirements before finalizing procurement orders.
Selection Notes
Select this component when strict voltage accuracy and wide temperature stability are required in space-constrained designs. The SOT-23-3 package offers a compact solution for surface-mount assembly. Consider the 15 mA maximum current limit when designing the series resistor network to ensure proper biasing without exceeding power dissipation limits.
Part Context
This part belongs to the LM4040 family of precision micropower shunt voltage references. The family includes various output voltages and accuracy grades (A, B, C, D). The LM4040A20 variant specifically targets applications needing 2.048 V with tight tolerance specifications compared to lower-grade alternatives.
Replacement Considerations
LM4040A20IDBZTG4 is a verified substitute offering identical electrical specifications but supplied in cut-tape or tube packaging instead of reel format. Verify that the alternative package type fits the existing manufacturing process constraints.
