My Inquiry
My Account
Analog Devices Inc./Maxim Integrated LM4040DIM3-5.0-T
- Part No.:
- LM4040DIM3-5.0-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
LM4040DIM3-5.0-T.pdf
- Description:
- PRECISION MICROPOWER SHUNT VREF
- Quantity:
- Payment:
- Shipping:
Inventory:6,498
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM4040DIM3-5.0-T from Maxim Integrated is a precision 5.000V two-terminal shunt voltage reference in SC70-3 package, featuring 1.0% initial accuracy, ±150ppm/°C temperature coefficient, and stable operation from -40°C to +85°C. It delivers 60μA to 15mA shunt current capability with low 1.5Ω dynamic impedance and 80µVRMS wideband noise (10Hz–10kHz), ideal for battery-powered analog-to-digital conversion and portable instrumentation.
For engineers reviewing the LM4040DIM3-5.0-T datasheet, LM4040DIM3-5.0-T pinout, LM4040DIM3-5.0-T application, or LM4040DIM3-5.0-T equivalent, key selection criteria include guaranteed reverse breakdown voltage tolerance (±50mV at +25°C), minimum operating current (54μA), no-output-capacitor stability, and compatibility with capacitive loads in space-constrained designs.
Technical Context
The LM4040DIM3-5.0-T uses bandgap-based shunt regulation to maintain a precise 5.000V reverse breakdown voltage across its cathode-anode terminals without requiring external stabilization. Its internal laser-trimmed resistor network ensures fixed output voltage accuracy within ±1.0% over temperature and current variations.
It operates as a two-terminal device: reverse current flows from cathode to anode to establish regulation, while forward current up to 10mA is tolerated. The NC pin (Pin 3) must remain unconnected or tied to cathode (Pin 2), confirming strict SC70-3 pinout compliance and eliminating ambiguity in PCB layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000V nominal reverse breakdown voltage, ±50mV tolerance at +25°C (D-grade) |
| Initial Accuracy | ±1.0% over temperature range - defines worst-case calibration error before trimming |
| Temp Coefficient | ±150ppm/°C max - contributes ≤±9.75mV drift over -40°C to +85°C span |
| Shunt Current Range | 54μA to 15mA - sets minimum bias and maximum regulation current for stable operation |
| Dynamic Impedance | 0.5Ω to 1.5Ω at 1mA - ensures <15mV output variation under 10mA load transients |
| Wideband Noise | 80µVRMS (10Hz–10kHz) - limits ADC reference uncertainty in 12-bit+ systems |
| Operating Temp | -40°C to +85°C - supports industrial and consumer ambient environments |
Pinout & Package
LM4040DIM3-5.0-T is housed in a 3-pin SC70 surface-mount package (1.8mm × 1.8mm), 50% smaller than SOT23 equivalents. Pin 3 is No Connection (NC) and must be left floating or tied to Pin 2 per datasheet requirement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (+) | Cathode | Reverse-bias input terminal - connects to higher-voltage supply rail via series resistor |
| Pin 2 (–) | Anode | Reference ground node - forms regulated 5.000V potential relative to this terminal |
| Pin 3 (N.C.) | No Connection | Must not be used; floating or shorted to Pin 2 only - violation risks parametric deviation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small SC70-3 footprint | 1.8mm × 1.8mm area enables placement in ultra-dense portable PCBs |
| No output capacitor required | Guaranteed stability with any capacitive load eliminates BOM cost and layout risk |
| Low 80µVRMS noise | Enables high-resolution SAR and delta-sigma ADC reference without external filtering |
| 15mA max shunt current | Supports >100kΩ load impedance at 5V while maintaining regulation margin |
| 100% production tested | Every unit verified at +25°C and guaranteed over full -40°C to +85°C range |
Applications
| Portable Instrumentation | Battery-Powered Data Loggers |
|---|---|
Use Scenario: Handheld multimeters and sensor nodes requiring stable 5V reference for 12–16-bit ADCs. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 5.000V reference for analog front-end signal conditioning. Use Value: ±50mV initial tolerance and ±150ppm/°C TC ensure <±0.5% total error over operating temperature without calibration. | Use Scenario: Remote environmental monitors powered by coin-cell or Li-ion batteries. IC Role / Device Role / Timing Role: Low-quiescent-current shunt reference enabling microamp-level system sleep current. Use Value: 54μA minimum operating current allows regulation even during deep sleep modes with minimal battery drain. |
| Industrial Process Sensors | USB-Powered Test Equipment |
Use Scenario: 4–20mA loop-powered transmitters with onboard analog signal processing. IC Role / Device Role / Timing Role: Precision voltage reference for DAC output scaling and sensor excitation circuits. Use Value: Stable 5.000V output with <1.5Ω dynamic impedance rejects supply ripple and load-induced voltage sag. | Use Scenario: Compact USB oscilloscopes and logic analyzers drawing power directly from USB 5V bus. IC Role / Device Role / Timing Role: Isolated reference source decoupled from noisy USB VBUS for clean analog measurements. Use Value: No-output-capacitor stability prevents oscillation when sharing VBUS with switching regulators and digital ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL431ACDBVR | Adjustable 2.5V reference (requires two external resistors); 0.5% initial accuracy; 50ppm/°C TC | Requires design-in of feedback network; better TC but lower output voltage | Select when adjustable output or tighter TC is prioritized over fixed 5V and smallest footprint |
| REF3050AIDBZR | 5.0V series reference; 0.2% initial accuracy; 50ppm/°C TC; 50μA quiescent current | Three-terminal series topology; requires input headroom; higher accuracy but larger SOT23-3 package | Select when lowest TC and highest accuracy are critical, and board space permits larger package |
Compared with TL431ACDBVR and REF3050AIDBZR, LM4040DIM3-5.0-T offers the smallest SC70-3 footprint and true two-terminal simplicity, trading absolute accuracy and TC for space savings and zero external components - optimal for cost- and size-sensitive fixed-5V reference needs.
Availability
LM4040DIM3-5.0-T is available at Aetrix Electronics and suitable for portable instrumentation, battery-powered data loggers, and industrial process sensors requiring stable component supply with consistent lead times and RoHS-compliant sourcing.
Supply support for LM4040DIM3-5.0-T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated is a semiconductor company specializing in analog and mixed-signal ICs for industrial, communications, computing, and consumer applications.
The LM4040 product line delivers precision micropower shunt voltage references optimized for space-constrained, battery-operated systems requiring stable, low-drift reference voltages without external components.
FAQ
What is the guaranteed reverse breakdown voltage tolerance for LM4040DIM3-5.0-T at +25°C?
The LM4040DIM3-5.0-T has a guaranteed reverse breakdown voltage tolerance of ±50mV at +25°C (±1.0% of 5.000V), per the D-grade specification in the Electrical Characteristics table for the 5.000V variant. This tolerance expands to ±99mV over the full -40°C to +85°C operating range due to temperature coefficient effects.
Can LM4040DIM3-5.0-T operate without an external output capacitor?
Yes, LM4040DIM3-5.0-T is explicitly designed to be stable without any external output capacitor and tolerates arbitrary capacitive loads. This eliminates BOM cost and layout complexity, making it ideal for compact, low-component-count designs where board space is constrained.
What is the minimum operating current required for LM4040DIM3-5.0-T to maintain regulation?
The LM4040DIM3-5.0-T requires a minimum shunt current of 54μA to maintain regulation at +25°C, increasing to 80μA at the extremes of its -40°C to +85°C operating range. Below this threshold, the device exits regulation and output voltage drops below 5.000V.
Is Pin 3 of LM4040DIM3-5.0-T functional or should it be left unconnected?
Pin 3 of LM4040DIM3-5.0-T is designated N.C. (No Connection) and must be left unconnected or tied to Pin 2 (anode). Connecting Pin 3 to any other net violates the datasheet specification and may cause parametric deviation or failure to meet guaranteed performance.
How does the temperature coefficient of LM4040DIM3-5.0-T affect its output over its full operating range?
With a maximum temperature coefficient of ±150ppm/°C, LM4040DIM3-5.0-T exhibits up to ±9.75mV total drift over its -40°C to +85°C range (125°C span). This translates to a worst-case output of 4.990V to 5.010V at temperature extremes, assuming nominal 5.000V at +25°C.
LM4040DIM3-5.0-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Reference Type:
- Shunt
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±1%
- Temperature Coefficient:
- 150ppm/°C
- Noise - 0.1Hz to 10Hz:
- -
- Noise - 10Hz to 10kHz:
- 80µVrms
- Voltage - Input:
- -
- Current - Supply:
- -
- Current - Cathode:
- 85 µA
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
LM4040DIM3-5.0-T FAQ
1.How can I place an order for LM4040DIM3-5.0-T through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4040DIM3-5.0-T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LM4040DIM3-5.0-T reliable?
The price and inventory of LM4040DIM3-5.0-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4040DIM3-5.0-T is usually 5 days.
3.What payment methods are accepted for LM4040DIM3-5.0-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4040DIM3-5.0-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4040DIM3-5.0-T?
LM4040DIM3-5.0-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4040DIM3-5.0-T order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LM4040DIM3-5.0-T?
For technical support, including LM4040DIM3-5.0-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4040DIM3-5.0-T requirements.
6.How does Aetrix verify that LM4040DIM3-5.0-T is sourced from the original manufacturer or authorized distributors?
All LM4040DIM3-5.0-T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LM4040DIM3-5.0-T meets industry standards.
7.What is the process for return or replacement of LM4040DIM3-5.0-T?
All LM4040DIM3-5.0-T units undergo pre-shipment inspection (PSI). If there is an issue with LM4040DIM3-5.0-T, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LM4040DIM3-5.0-T part is unused and in its original packaging.
Return procedure for LM4040DIM3-5.0-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM4040DIM3-5.0-T Tags
-
TL431AIDBZR
Texas Instruments
-
TL431BQDBZR
Texas Instruments
-
AN431AN-ATRG1
Diodes Incorporated
-
LM4040CYM3-2.5-TR
Microchip Technology
-
LM4040CYM3-4.1-TR
Microchip Technology
-
LM4040EIM3-2.5/NOPB
Texas Instruments
-
AZ431LBNTR-G1
Diodes Incorporated
-
LM4040D20IDBZR
Texas Instruments
-
LM4041DIM3-ADJ/NOPB
Texas Instruments
-
LM4040DIM3X-2.5/NOPB
Texas Instruments
-
LM4040DIM3-2.5/NOPB
Texas Instruments
-
AZ431LANTR-G1
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
