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Analog Devices Inc./Maxim Integrated MAX6029ESA41+
- Part No.:
- MAX6029ESA41+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6029ESA41+.pdf
- Description:
- IC VREF SERIES 0.2% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,786
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Product details
Overview
MAX6029ESA41+ from Maxim Integrated is a precision series-mode voltage reference IC delivering 4.096V output with ±0.15% initial accuracy, 30ppm/°C max temperature coefficient, and ultra-low 8.75µA (max) supply current. It operates from 4.3V to 12.6V input, sources up to 4mA, sinks up to 1mA, and maintains stability with capacitive loads up to 10µF-ideal for high-resolution ADC/DAC biasing in portable instrumentation.
For engineers reviewing the MAX6029ESA41+ datasheet, MAX6029ESA41+ pinout, MAX6029ESA41+ application, or MAX6029ESA41+ equivalent, this page delivers verified electrical specs, SO-8 package layout, thermal hysteresis (140ppm), long-term stability (150ppm/1000h), and design-meaningful comparisons against alternative references for battery-powered precision systems.
Technical Context
The MAX6029ESA41+ uses a bandgap-based series architecture with internal compensation, eliminating external capacitors while ensuring stability across 0–10µF load capacitance when sourcing and up to 0.4µF when sinking. Its low 200mV dropout enables operation near battery end-of-life in 4.5V nominal systems.
Designed for high-accuracy data conversion, it achieves 72µVP-P (0.1Hz–10Hz) and 210µVRMS (10Hz–1kHz) noise performance at 4.096V output, with 36dB ripple rejection at 120Hz-critical for maintaining SNR in 12-bit to 16-bit ADC applications over -40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V ±0.15% at +25°C - ensures ≤1 LSB error in 12-bit systems over full temp range |
| Temp Coefficient | ≤30ppm/°C - limits drift to <±1.2mV across -40°C to +85°C ambient |
| Supply Current | 8.75µA max - extends coin-cell life beyond 10 years in always-on sensor nodes |
| Dropout Voltage | 200mV at 4mA load - supports operation down to 4.296V input, compatible with single Li-ion cells |
| Noise (0.1–10Hz) | 72µVP-P - contributes <0.017 LSB peak-to-peak error in 16-bit 4.096V full-scale ADCs |
| Load Regulation | 2.5–8.5µV/µA - maintains output stability under dynamic load shifts typical in multiplexed sensor front-ends |
| Long-Term Stability | 150ppm/1000h - guarantees <±0.62mV output shift after 42 days of continuous operation |
Pinout & Package
MAX6029ESA41+ is housed in an 8-pin SO (small-outline) package with 1.27mm pitch, RoHS-compliant, and rated for -40°C to +85°C operation. Pin 1 is marked with a beveled corner or dot; pins 3, 5, 7, and 8 are no-connect (N.C.) and must remain unconnected or grounded per design guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN | Positive supply input - accepts 4.3V to 12.6V; bypass with 0.1µF ceramic if transient immunity required |
| 2 | GND | Analog ground reference - must connect to clean system ground plane with low-impedance path |
| 3 | N.C. | No connection - leave floating or tie to GND; no internal circuitry attached |
| 4 | OUT | Precision 4.096V reference output - drives ADC VREF, DAC REF, or comparator thresholds |
| 5 | N.C. | No connection - leave floating or tie to GND; no internal circuitry attached |
| 6 | N.C. | No connection - leave floating or tie to GND; no internal circuitry attached |
| 7 | N.C. | No connection - leave floating or tie to GND; no internal circuitry attached |
| 8 | N.C. | No connection - leave floating or tie to GND; no internal circuitry attached |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low supply current | 8.75µA max enables >10-year battery life in 10µA-sleep IoT nodes |
| No external capacitor required | Internal compensation eliminates footprint and BOM cost of output cap, saving 0.5mm² PCB area |
| Stable with 10µF capacitive load | Supports direct driving of ADC input filters without oscillation risk |
| Low thermal hysteresis | 140ppm ensures repeatable calibration after thermal cycling in field-deployed instruments |
| Wide supply range | 4.3V–12.6V input accommodates aging alkaline, Li-ion, and regulated 5V rails without redesign |
Applications
| Portable Data Loggers | Medical Sensor Front-Ends |
|---|---|
Use Scenario: Battery-powered environmental monitors logging temperature, humidity, and gas concentration every 5 minutes using 16-bit SAR ADCs. IC Role / Device Role / Timing Role: Provides stable 4.096V reference for ADC full-scale range, enabling ±0.5mV measurement resolution. Use Value: 30ppm/°C drift and 150ppm/1000h stability ensure <±1.5°C calibration drift over 2-year deployment without field recalibration. | Use Scenario: Wearable ECG patch acquiring 10-bit biopotential signals with low-noise analog front-end and integrated ADC. IC Role / Device Role / Timing Role: Supplies precision reference to 10-bit successive-approximation ADC, defining signal amplitude scale. Use Value: 72µVP-P low-frequency noise prevents baseline wander artifacts, preserving ST-segment morphology in diagnostic-grade waveforms. |
| Industrial Process Controllers | Calibration Equipment |
Use Scenario: DIN-rail mounted PLC I/O module converting 4–20mA loop signals to digital via 12-bit sigma-delta ADC. IC Role / Device Role / Timing Role: Serves as ratiometric reference for current-to-voltage conversion and ADC scaling. Use Value: 200mV dropout allows operation from 5V rail even under brownout conditions, preventing loss of critical alarm outputs. | Use Scenario: Benchtop multimeter calibrator generating traceable DC voltage standards from 100mV to 10V ranges. IC Role / Device Role / Timing Role: Primary 4.096V reference source feeding programmable gain amplifiers and relay-switched divider networks. Use Value: ±0.15% initial accuracy and 140ppm thermal hysteresis support Class II metrology compliance per ANSI/NCSL Z540. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3440BRMZ | 4.096V output, 10ppm/°C max TCVOUT, 4.5µA supply current, but requires 1µF output capacitor for stability | Better tempco suits lab-grade instruments; higher quiescent current limits ultra-low-power use | Select ADR3440BRMZ only when <10ppm/°C drift is mandatory and board space permits external capacitor |
| REF3040AIDBZR | 4.096V output, 50ppm/°C max TCVOUT, 50µA supply current, SOT23-3 package, no internal compensation | Higher power and drift suit cost-sensitive industrial controls where 12-bit accuracy suffices | Choose REF3040AIDBZR for high-volume production where 50ppm/°C and 50µA are acceptable trade-offs for lower unit cost |
Compared with ADR3440BRMZ and REF3040AIDBZR, MAX6029ESA41+ uniquely balances ultra-low 8.75µA supply current, 30ppm/°C tempco, and capacitor-free operation-making it optimal for space-constrained, battery-critical 12–16-bit measurement systems requiring guaranteed stability without layout overhead.
Availability
MAX6029ESA41+ is available at Aetrix Electronics and suitable for portable instrumentation, medical sensors, industrial process controllers, and calibration equipment requiring stable component supply with guaranteed long-term availability and RoHS-compliant packaging.
Supply support for MAX6029ESA41+ 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 (now part of Analog Devices) designs precision analog, mixed-signal, and power management ICs for demanding industrial, medical, and communications applications.
The MAX6029 series was developed specifically for micropower, high-accuracy voltage referencing in battery-operated and space-constrained measurement systems-emphasizing low drift, minimal supply current, and robust capacitive-load stability.
FAQ
What is the maximum load current the MAX6029ESA41+ can source and sink?
The MAX6029ESA41+ can source up to 4mA and sink up to 1mA of load current while maintaining specified accuracy and stability. This capability supports direct driving of ADC reference inputs, op-amp bias networks, and low-power comparators without external buffers. Exceeding these limits may increase dropout voltage or degrade regulation performance in the MAX6029ESA41+.
Does the MAX6029ESA41+ require an external output capacitor for stability?
No, the MAX6029ESA41+ does not require an external output capacitor for stability due to its internally compensated architecture. It remains stable with capacitive loads from 0 to 10µF when sourcing current and up to 0.4µF when sinking current. Adding an output capacitor may improve transient response in step-load applications but is optional for basic operation of the MAX6029ESA41+.
What is the dropout voltage specification for the MAX6029ESA41+ at full load?
The dropout voltage for the MAX6029ESA41+ is 200mV maximum at 4mA output source current. This means the device maintains regulation as long as the input voltage remains at least 4.296V (4.096V + 0.200V) - enabling reliable operation from partially discharged single-cell Li-ion batteries or noisy 5V rails. Dropout is measured as the minimum VIN–VOUT differential yielding 0.1% output deviation in the MAX6029ESA41+.
How does the MAX6029ESA41+ perform in terms of output voltage noise?
The MAX6029ESA41+ delivers 72µVP-P (0.1Hz–10Hz) and 210µVRMS (10Hz–1kHz) output voltage noise at its 4.096V output. This low noise floor ensures minimal contribution to total system noise in high-resolution data acquisition-equivalent to <0.017 LSBP-P in a 16-bit ADC with 4.096V full-scale range. These values are measured under standard test conditions and apply directly to the MAX6029ESA41+.
Is the MAX6029ESA41+ pin-compatible with other devices in the MAX6029 family?
Yes, the MAX6029ESA41+ shares identical pinout and package (8-pin SO) with all other MAX6029ESA-x variants (e.g., MAX6029ESA25+, MAX6029ESA50+). Output voltage is the only functional difference between these parts; all share the same IN, GND, OUT, and N.C. pin assignments, allowing drop-in replacement within the same voltage grade group without PCB modification for the MAX6029ESA41+.
MAX6029ESA41+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 4.096V
- Voltage - Output (Max):
- -
- Current - Output:
- 4 mA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 30ppm/°C
- Noise - 0.1Hz to 10Hz:
- 72µVp-p
- Noise - 10Hz to 10kHz:
- 210µVrms
- Voltage - Input:
- 4.3V ~ 12.6V
- Current - Supply:
- 8.75µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX6029ESA41+ FAQ
1.How can I place an order for MAX6029ESA41+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6029ESA41+ 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 MAX6029ESA41+ reliable?
The price and inventory of MAX6029ESA41+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6029ESA41+ is usually 5 days.
3.What payment methods are accepted for MAX6029ESA41+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6029ESA41+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6029ESA41+?
MAX6029ESA41+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6029ESA41+ 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 MAX6029ESA41+?
For technical support, including MAX6029ESA41+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6029ESA41+ requirements.
6.How does Aetrix verify that MAX6029ESA41+ is sourced from the original manufacturer or authorized distributors?
All MAX6029ESA41+ 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 MAX6029ESA41+ meets industry standards.
7.What is the process for return or replacement of MAX6029ESA41+?
All MAX6029ESA41+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6029ESA41+, 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 MAX6029ESA41+ part is unused and in its original packaging.
Return procedure for MAX6029ESA41+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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