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Analog Devices Inc./Maxim Integrated MAX6029EUK41+T
- Part No.:
- MAX6029EUK41+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6029EUK41+T.pdf
- Description:
- IC VREF SERIES 4.096V SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,548
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Product details
Overview
MAX6029EUK41+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 a 5-pin SOT23 package. It sources up to 4mA and sinks up to 1mA, operates from 4.3V to 12.6V input, and maintains stability with capacitive loads up to 10µF-ideal for precision ADC/DAC biasing in battery-powered instrumentation.
For engineers reviewing the MAX6029EUK41+T datasheet, MAX6029EUK41+T pinout, MAX6029EUK41+T application, or MAX6029EUK41+T equivalent, key selection criteria include its 4.096V output voltage matched to 12-bit ADC full-scale ranges, guaranteed dropout ≤200mV at 4mA load, 210µVRMS noise (10Hz–1kHz), and operation across –40°C to +85°C without external compensation.
Technical Context
The MAX6029EUK41+T uses a bandgap-based series architecture with internal compensation, eliminating need for external capacitors while ensuring stability with 0–10µF output capacitance during sourcing and 0–0.4µF during sinking. Its BiCMOS process enables ultra-low quiescent current (8.75µA max) with only 1.5µA/V line sensitivity.
Designed for precision analog signal chains, it delivers 4.096V output optimized for 12-bit systems (e.g., 4096-count full scale), supports 0.1% settling in 1.2ms, and provides 36dB ripple rejection at 120Hz-critical for high-resolution data acquisition in noisy environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V ±0.15% (max) at +25°C - matches 12-bit ADC full-scale code count of 4096 for zero-error scaling. |
| Temperature Coefficient | 30ppm/°C (max) - ensures <±0.5mV drift over –40°C to +85°C, enabling stable 12-bit accuracy without calibration. |
| Supply Current | 8.75µA (max) - extends battery life in portable devices; variation ≤1.5µA/V ensures consistent power draw across 4.3–12.6V input range. |
| Dropout Voltage | 200mV (max) at 4mA load - allows operation from 4.3V input while maintaining regulation, suitable for single-cell Li-ion or dual-cell alkaline systems. |
| Noise (10Hz–1kHz) | 210µVRMS - contributes <0.05 LSB error in 12-bit, 4.096V-range ADCs, minimizing quantization uncertainty. |
| Load Regulation | 2.5–8.5µV/µA (sourcing/sinking) - holds output within ±0.5mV under full 4mA/–1mA load change, preserving reference integrity in dynamic loads. |
| Stability Range | 0–10µF capacitive load (sourcing), 0–0.4µF (sinking) - eliminates need for output capacitor in space-constrained designs while ensuring transient robustness. |
Pinout & Package
MAX6029EUK41+T is housed in a RoHS-compliant 5-pin SOT23 package (outline 21-0057), occupying 70% less PCB area than comparable SO-8 devices. The package features gull-wing leads, thermal pad not connected, and is rated for continuous operation from –40°C to +85°C.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN | Positive supply input; accepts 4.3V–12.6V; no input capacitor required, but 0.1µF ceramic improves transient response. |
| 2 | GND | Analog ground reference; must be low-impedance connection to minimize noise coupling into reference output. |
| 3, 4 | N.C. | No internal connection; may be left floating or tied to GND for mechanical stability or EMI reduction. |
| 5 | OUT | Precision 4.096V reference output; capable of sourcing 4mA or sinking 1mA; stable with 0–10µF capacitive loads. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low supply current | 8.75µA max enables >10-year battery life in 10µA-sleep IoT sensors using coin cells. |
| No external compensation required | Internal capacitor ensures unconditional stability-reduces BOM count and layout complexity in compact PCBs. |
| 4.096V output voltage | Exact match for 12-bit ADC full-scale (2¹² = 4096), eliminating scaling errors in digital multimeters and data loggers. |
| Low 200mV dropout | Permits use with 4.3V minimum input-compatible with discharged Li-ion (3.0V–4.2V) when paired with LDO pre-regulator. |
| ±0.15% initial accuracy | Reduces or eliminates factory calibration steps in handheld test equipment, lowering production cost. |
Applications
| Portable Digital Multimeter | Wireless Sensor Node ADC Reference |
|---|---|
Use Scenario: Handheld DMM requiring 12-bit resolution and 8-hour battery life on two AA cells. IC Role / Device Role / Timing Role: Primary voltage reference for SAR ADC, establishing precise 4.096V full-scale range. Use Value: 4.096V output eliminates software scaling; 8.75µA supply current extends battery life; 30ppm/°C TC ensures <±0.5mV drift across operating temperature. |
Use Scenario: Battery-powered environmental sensor node transmitting temperature/humidity via BLE every 60 seconds. IC Role / Device Role / Timing Role: Stable reference for low-power sigma-delta ADC measuring thermistor and humidity sensor bridges. Use Value: 200mV dropout allows direct connection to 3.3V system rail; 10µF load stability accommodates decoupling caps shared with RF transceiver. |
| Programmable Logic Controller Analog Input Module | Medical Patient Monitor Front-End |
Use Scenario: Industrial PLC module digitizing 4–20mA current loops with 12-bit isolation and cold-junction compensation. IC Role / Device Role / Timing Role: Precision reference for isolated ΣΔ ADC, rejecting supply ripple in electrically noisy factory environments. Use Value: 36dB PSRR at 120Hz suppresses AC line harmonics; ±0.15% accuracy ensures compliance with IEC 61000-4-3 immunity testing. |
Use Scenario: Portable ECG monitor requiring sub-microvolt baseline stability and FDA-cleared 12-bit resolution over 8-hour clinical use. IC Role / Device Role / Timing Role: Low-noise reference for instrumentation amplifier and ADC front-end, minimizing differential mode interference. Use Value: 210µVRMS noise contributes <0.05 LSB error; thermal hysteresis <140ppm prevents drift after patient-warmup thermal cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3041AIDBVR | 4.096V output, 50ppm/°C TC (vs. 30ppm), 50µA supply current (vs. 8.75µA), SOT23-5 package. | Higher drift and 6× higher supply current limit battery life and thermal headroom in portable medical devices. | Select MAX6029EUK41+T when ultra-low power and tight TC are mandatory; choose REF3041AIDBVR only if legacy design reuse or lower cost outweighs performance loss. |
| ADR3440ARJZ-R7 | 4.096V output, 10ppm/°C TC (tighter), but 120µA supply current, 350mV dropout, and requires 1µF output cap for stability. | Superior TC suits metrology-grade instruments, but higher power and external cap requirement conflict with space/power constraints in wearables. | Prefer ADR3440ARJZ-R7 for lab-grade calibration tools; retain MAX6029EUK41+T for field-deployable, battery-operated systems where size and efficiency dominate. |
Compared with REF3041AIDBVR and ADR3440ARJZ-R7, the MAX6029EUK41+T uniquely balances ultra-low 8.75µA supply current, 30ppm/°C TC, and capacitor-free stability-making it the optimal choice for space- and energy-constrained 12-bit data acquisition where 4.096V alignment is essential.
Availability
MAX6029EUK41+T is available at Aetrix Electronics and suitable for battery-powered instrumentation, portable medical devices, and industrial sensor interfaces requiring stable component supply with guaranteed long-term availability and RoHS-compliant packaging.
Supply support for MAX6029EUK41+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) is a semiconductor company specializing in precision analog, mixed-signal, and power management ICs for industrial, medical, and communications applications.
The MAX6029EUK41+T belongs to the Ultra-Low-Power Precision Series voltage references, designed specifically for battery-operated, high-resolution data acquisition systems demanding minimal supply current, tight initial accuracy, and low thermal drift without external components.
FAQ
What is the output voltage tolerance of the MAX6029EUK41+T at +25°C?
The MAX6029EUK41+T guarantees an output voltage of 4.096V with ±0.15% (max) initial accuracy at +25°C, corresponding to a tolerance band of 4.0899V to 4.1021V. This specification is production-tested and applies specifically to the MAX6029EUK41+T variant, as confirmed in the Electrical Characteristics table for MAX6029_41 on page 6 of the datasheet.
Does the MAX6029EUK41+T require an external output capacitor for stability?
No, the MAX6029EUK41+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. This eliminates BOM cost and board space overhead, a key advantage explicitly stated in the General Description and Applications Information sections.
What is the maximum supply current for the MAX6029EUK41+T, and how does it vary with input voltage?
The MAX6029EUK41+T has a maximum supply current of 8.75µA at TA = +25°C and VIN = 4.3V to 12.6V. Its supply current variation is limited to 1.5µA/V (max) across the input range, meaning total current remains tightly bounded-e.g., increasing by ≤12.4µA from 4.3V to 12.6V-ensuring predictable power budgeting in battery systems.
Can the MAX6029EUK41+T drive a 10µF load capacitor while maintaining regulation?
Yes, the MAX6029EUK41+T is specified to remain stable driving capacitive loads up to 10µF when sourcing current, as documented in both the General Description and Applications Information sections. This capability is enabled by its internal compensation and is validated across the full –40°C to +85°C temperature range, supporting robust transient response in systems with large local decoupling.
What is the dropout voltage specification for the MAX6029EUK41+T at full 4mA load?
The MAX6029EUK41+T has a maximum dropout voltage of 200mV at 4mA output source current, defined as the minimum VIN − VOUT required to maintain regulation within 0.1% of nominal output. This value is guaranteed across temperature and is critical for operation from low-input rails such as partially discharged batteries or post-LDO supplies.
MAX6029EUK41+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- SC-74A, SOT-753
- 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:
- ±0.15%
- 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:
- SOT-23-5
MAX6029EUK41+T FAQ
1.How can I place an order for MAX6029EUK41+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6029EUK41+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 MAX6029EUK41+T reliable?
The price and inventory of MAX6029EUK41+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6029EUK41+T is usually 5 days.
3.What payment methods are accepted for MAX6029EUK41+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6029EUK41+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6029EUK41+T?
MAX6029EUK41+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6029EUK41+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 MAX6029EUK41+T?
For technical support, including MAX6029EUK41+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6029EUK41+T requirements.
6.How does Aetrix verify that MAX6029EUK41+T is sourced from the original manufacturer or authorized distributors?
All MAX6029EUK41+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 MAX6029EUK41+T meets industry standards.
7.What is the process for return or replacement of MAX6029EUK41+T?
All MAX6029EUK41+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6029EUK41+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 MAX6029EUK41+T part is unused and in its original packaging.
Return procedure for MAX6029EUK41+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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