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Analog Devices Inc./Maxim Integrated MAX6029ESA41+T
- Part No.:
- MAX6029ESA41+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6029ESA41+T.pdf
- Description:
- IC VREF SERIES 0.2% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,059
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Product details
Overview
MAX6029ESA41+T from Maxim Integrated is a micropower, low-dropout series-mode voltage reference delivering 4.096V output with ±0.15% (max) initial accuracy, 30ppm/°C (max) temperature coefficient, and ultra-low 8.75µA (max) supply current in an 8-pin SO package. It sources up to 4mA and sinks up to 1mA, features 200mV dropout at full load, and operates from 4.3V to 12.6V - ideal for precision ADC/DAC biasing in battery-powered instrumentation.
For engineers reviewing the MAX6029ESA41+T datasheet, MAX6029ESA41+T pinout, MAX6029ESA41+T application, or MAX6029ESA41+T equivalent, key selection criteria include guaranteed 4.096V output stability over –40°C to +85°C, no external compensation requirement, capacitive load tolerance up to 10µF, and compatibility with 12-bit to 16-bit data converters requiring sub-1LSB reference drift.
Technical Context
The MAX6029ESA41+T uses a bandgap-based series-mode architecture with internal compensation, eliminating need for external capacitors while maintaining stability across 0–10µF output capacitance. Its BiCMOS process enables ultra-low quiescent current (8.75µA max) with only 1.5µA/V supply-voltage sensitivity.
It delivers fixed 4.096V output optimized for 12-bit and 16-bit analog-to-digital conversion, where exact scaling (e.g., 4.096V = 1V per LSB for 12-bit) minimizes code-edge errors. Line regulation is specified at 30–310 µV/V and load regulation at 2.5–8.5 µV/µA over full operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V ±0.15% (max) at +25°C - enables exact 1V/LSB scaling for 12-bit systems without gain calibration |
| Tempco | 30ppm/°C (max) - ensures ≤±0.5 LSB drift over –40°C to +85°C in 16-bit applications |
| Supply Current | 8.75µA (max) - extends battery life in multidecade standby operation (e.g., >10 years on CR2032) |
| Dropout Voltage | 200mV (max) at 4mA load - supports operation down to VIN = 4.296V, compatible with single Li-ion cells under discharge |
| Load Drive | Sources 4mA / sinks 1mA - directly drives SAR ADC reference inputs and op-amp buffers without external gain stage |
| Noise (0.1–10Hz) | 72µVP-P - contributes <0.018 LSB RMS noise in 16-bit 4.096V full-scale systems |
| Capacitive Load Stability | Stable with 0–10µF (source), 0–0.4µF (sink) - eliminates need for output capacitor in space-constrained PCB layouts |
Pinout & Package
MAX6029ESA41+T is housed in an 8-pin SO (small-outline) package with standard 1.27mm pitch. Pin 1 is marked by a beveled corner or dot; pins are numbered counterclockwise.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | N.C. | No connection - must remain unconnected or tied to ground; no internal function |
| 2 | N.C. | No connection - must remain unconnected or tied to ground; no internal function |
| 3 | GND | Analog ground reference - connect to clean system AGND plane with low-inductance path |
| 4 | N.C. | No connection - must remain unconnected or tied to ground; no internal function |
| 5 | N.C. | No connection - must remain unconnected or tied to ground; no internal function |
| 6 | OUT | Precision 4.096V reference output - decouple with 0.1µF ceramic if high transient immunity required |
| 7 | IN | Positive supply input (4.3V–12.6V) - bypass with 0.1µF ceramic close to pin for improved line rejection |
| 8 | N.C. | No connection - must remain unconnected or tied to ground; no internal function |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low supply current | 8.75µA max - reduces self-heating error and enables microamp-level system sleep modes |
| No external compensation | Internal capacitor ensures unconditional stability - eliminates layout risk and BOM cost of external cap |
| Low dropout | 200mV at 4mA - allows operation from partially discharged batteries or low-headroom supplies |
| High initial accuracy | ±0.15% max - removes need for post-assembly reference trimming in production test |
| Wide supply range | 4.3V to 12.6V - supports direct connection to unregulated wall adapters or multi-cell battery stacks |
Applications
| Portable Data Loggers | Medical Sensor Front-Ends |
|---|---|
Use Scenario: Battery-powered environmental sensor node recording temperature, humidity, and pressure at 1Hz for 5+ years. IC Role / Device Role / Timing Role: Provides stable 4.096V reference for 16-bit sigma-delta ADC measuring thermistor and capacitive humidity sensors. Use Value: Ultra-low 8.75µA supply current extends CR2032 battery life beyond 10 years; 30ppm/°C tempco ensures <±0.5°C measurement drift over field temperature range. |
Use Scenario: Wearable ECG patch digitizing biopotential signals with 12-bit resolution and 1kSPS sampling. IC Role / Device Role / Timing Role: Supplies precise 4.096V reference to SAR ADC front-end, enabling 1mV LSB resolution for R-wave detection. Use Value: 200mV dropout permits operation from single 3.7V Li-ion cell down to 3.3V; no external cap saves board area in ultra-thin flex PCB design. |
| Industrial Process Transmitters | Calibration Equipment |
Use Scenario: Loop-powered 4–20mA transmitter with HART modulation, operating from 12–42V DC supply. IC Role / Device Role / Timing Role: Generates 4.096V reference for DAC generating analog output and for internal ADC monitoring supply and sensor health. Use Value: 12.6V max input rating and 4mA sourcing capability allow direct derivation from regulated 5V rail; ±0.15% accuracy meets SIL-2 functional safety margin requirements. |
Use Scenario: Benchtop multimeter calibrator requiring traceable 4.096V output with <10ppm/°C effective drift. IC Role / Device Role / Timing Role: Serves as primary reference in 6½-digit DMM reference subsystem, buffered and filtered before distribution. Use Value: 140ppm thermal hysteresis and 150ppm long-term stability (1000h) support recalibration intervals ≥12 months; SO package enables automated optical alignment during metrology assembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5040IDR | 4.096V, 3ppm/°C max tempco, 100µA supply current, SO-8 package | Higher precision, higher power - suited for lab-grade instruments, not battery operation | Select when <±0.1 LSB drift over temperature is mandatory and supply current >100µA is acceptable |
| ADR3440ARJZ-R7 | 4.096V, 10ppm/°C max tempco, 120µA supply current, SOT-23-5 package | Smaller footprint but 14× higher supply current - trades battery life for board area reduction | Select when PCB area is critical and system duty cycle allows average current >100µA |
Compared with REF5040IDR and ADR3440ARJZ-R7, the MAX6029ESA41+T uniquely balances ultra-low power (8.75µA), industry-standard 4.096V output, and SO-8 manufacturability - making it optimal for cost-sensitive, long-life portable instrumentation where 30ppm/°C drift is sufficient.
Availability
MAX6029ESA41+T is available at Aetrix Electronics and suitable for portable data loggers, medical sensor front-ends, industrial process transmitters, calibration equipment, and battery-powered precision measurement systems requiring stable component supply across extended product lifecycles.
Supply support for MAX6029ESA41+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 (now part of Analog Devices) designs precision analog, mixed-signal, and power-management ICs for demanding industrial, medical, and communications applications.
The MAX6029ESA41+T belongs to the Ultra-Low-Power Precision Series voltage reference family, engineered specifically for battery-operated and space-constrained systems needing accurate, stable, and efficient voltage references without external components.
FAQ
What is the output voltage tolerance of the MAX6029ESA41+T at +25°C?
The MAX6029ESA41+T guarantees a 4.096V output voltage with ±0.15% (max) initial accuracy at +25°C, corresponding to a range of 4.088V to 4.104V. This specification is production-tested and applies to all units shipped in the MAX6029ESA41+T variant, ensuring consistent performance without post-manufacture calibration.
Does the MAX6029ESA41+T require an external output capacitor for stability?
No, the MAX6029ESA41+T does not require an external output capacitor for stability. Its internal compensation ensures unconditional stability with capacitive loads from 0 to 10µF when sourcing current and 0 to 0.4µF when sinking current. An output capacitor may be added to improve transient response but is never mandatory.
What is the maximum supply voltage the MAX6029ESA41+T can tolerate?
The MAX6029ESA41+T has an absolute maximum supply voltage (IN to GND) of +13V. Its operational supply range is specified from 4.3V to 12.6V - meaning it functions correctly and meets all electrical specifications within that window, with 12.6V being the highest recommended continuous operating voltage.
How does the supply current of the MAX6029ESA41+T vary with input voltage?
The MAX6029ESA41+T exhibits only 1.5µA/V (max) change in supply current over its 4.3V–12.6V input range, resulting in total variation of ≤12.45µA. At 4.3V, typical supply current is ~7.5µA; at 12.6V, it rises to ~8.75µA (max), preserving ultra-low power operation across wide supply conditions.
Can the MAX6029ESA41+T drive a 10µF load capacitor while sourcing 4mA?
Yes, the MAX6029ESA41+T is explicitly characterized and guaranteed stable when sourcing up to 4mA into load capacitances from 0.1µF to 10µF. This capability is confirmed in the datasheet's "Stable with Capacitive Loads Up to 10µF" feature and validated in Typical Operating Characteristics (TOC23, TOC27).
MAX6029ESA41+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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+T FAQ
1.How can I place an order for MAX6029ESA41+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6029ESA41+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 MAX6029ESA41+T reliable?
The price and inventory of MAX6029ESA41+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6029ESA41+T is usually 5 days.
3.What payment methods are accepted for MAX6029ESA41+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6029ESA41+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6029ESA41+T?
MAX6029ESA41+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6029ESA41+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 MAX6029ESA41+T?
For technical support, including MAX6029ESA41+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6029ESA41+T requirements.
6.How does Aetrix verify that MAX6029ESA41+T is sourced from the original manufacturer or authorized distributors?
All MAX6029ESA41+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 MAX6029ESA41+T meets industry standards.
7.What is the process for return or replacement of MAX6029ESA41+T?
All MAX6029ESA41+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6029ESA41+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 MAX6029ESA41+T part is unused and in its original packaging.
Return procedure for MAX6029ESA41+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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