My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6029ESA25+T
- Part No.:
- MAX6029ESA25+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6029ESA25+T.pdf
- Description:
- IC VREF SERIES 0.2% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,992
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6029ESA25+T from Maxim Integrated is a precision series-mode voltage reference IC delivering 2.500V output with ±0.15% (max) initial accuracy, 30ppm/°C (max) temperature coefficient, and ultra-low 5.75µA (max) supply current in an 8-pin SO package. It sources up to 4mA, sinks up to 1mA, operates from 2.7V to 12.6V, and maintains stability with capacitive loads up to 10µF - ideal for high-resolution ADC/DAC biasing in battery-powered instrumentation.
For engineers reviewing the MAX6029ESA25+T datasheet, MAX6029ESA25+T pinout, MAX6029ESA25+T application, or MAX6029ESA25+T equivalent, key selection criteria include guaranteed 2.500V output tolerance over –40°C to +85°C, dropout voltage ≤200mV at 4mA load, no external compensation requirement, and RoHS-compliant 8-pin SO packaging with verified thermal hysteresis ≤140ppm.
Technical Context
The MAX6029ESA25+T implements a bandgap-based series-mode architecture with internal compensation, eliminating need for external capacitors while ensuring stability across 0–10µF output capacitance. Its BiCMOS process enables ultra-low quiescent current (5.75µA max) with only 1.5µA/V supply-voltage sensitivity.
It delivers fixed 2.500V output with guaranteed performance across –40°C to +85°C: initial accuracy ±0.15%, tempco ≤30ppm/°C, line regulation ≤230µV/V, load regulation ≤6.2µV/µA (sourcing), and noise of 137µVRMS (10Hz–1kHz). Turn-on settling time is 700ms to 0.1% final value.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.500V ±0.005V (±0.15% max at +25°C); ensures 12-bit ADC full-scale accuracy over temperature |
| Initial Accuracy | ±0.15% (max); guarantees absolute reference error ≤3.75mV at 2.5V before calibration |
| Tempco | 30ppm/°C (max); contributes ≤1.5mV drift over –40°C to +85°C span |
| Supply Current | 5.75µA (max); enables >10-year battery life in 10µA-systems with 250mAh coin cell |
| Dropout Voltage | 200mV (max at 4mA); allows operation from 2.7V supply while maintaining 2.5V output |
| Load Drive | Sources 4mA / sinks 1mA; supports direct driving of SAR ADC reference inputs and op-amp bias networks |
| Noise (10Hz–1kHz) | 137µVRMS; limits effective resolution to ~16.5 bits in low-frequency precision measurement |
Pinout & Package
MAX6029ESA25+T uses an 8-pin SO (small-outline) package with 1.27mm pitch, RoHS-compliant lead finish, and land pattern per Maxim outline 21-0041 (90-0096). Pin 1 is marked with a beveled corner or dot; pins 3, 5, 7, and 8 are NC and may be left floating or grounded.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN | Positive supply input (2.7V–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; electrically isolated - leave unconnected or tie to GND for mechanical stability |
| 4 | OUT | Stable 2.500V reference output; drives capacitive loads up to 10µF without oscillation |
| 5 | N.C. | No connection; electrically isolated - leave unconnected or tie to GND for mechanical stability |
| 6 | N.C. | No connection; electrically isolated - leave unconnected or tie to GND for mechanical stability |
| 7 | N.C. | No connection; electrically isolated - leave unconnected or tie to GND for mechanical stability |
| 8 | N.C. | No connection; electrically isolated - leave unconnected or tie to GND for mechanical stability |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low supply current | 5.75µA max enables multi-year operation from primary lithium cells in portable meters |
| No external capacitor required | Internal compensation eliminates layout area and BOM cost for stability-critical space-constrained designs |
| Low 200mV dropout | Permits use with single-cell LiFePO₄ (2.8V min) or two alkaline cells (3.0V fresh) while retaining full 2.5V output |
| Stable with 10µF load capacitance | Supports direct connection to ADC reference inputs with large decoupling caps without phase-margin loss |
| ±0.15% initial accuracy | Reduces or eliminates factory calibration steps in production test for medical and industrial sensors |
Applications
| Battery-Powered Handheld Instruments | Precision Data Acquisition Systems |
|---|---|
Use Scenario: Portable multimeter or pH meter operating from two AA batteries with sleep current <10µA. IC Role / Device Role / Timing Role: Provides stable 2.500V reference for 16-bit sigma-delta ADC and microcontroller VREF input. Use Value: Enables 0.01% measurement repeatability over battery discharge (2.0V–3.2V supply) and –10°C–+50°C ambient. |
Use Scenario: Industrial sensor node digitizing thermocouple and RTD signals with cold-junction compensation. IC Role / Device Role / Timing Role: Supplies excitation and reference voltage for precision instrumentation amplifier and 24-bit ADC. Use Value: Limits total system gain error to <0.02% over temperature via matched 30ppm/°C tempco and low thermal hysteresis (≤140ppm). |
| Low-Power Precision Power Supplies | A/D and D/A Converters |
Use Scenario: Programmable current source for LED driver calibration using DAC-controlled feedback. IC Role / Device Role / Timing Role: Sets accurate 2.500V threshold for DAC output scaling and current-sense amplifier offset nulling. Use Value: Maintains ±0.5% current accuracy over 1000-hour field deployment due to 150ppm long-term stability. |
Use Scenario: Reference for 12-bit SAR ADC in automotive cabin controller monitoring HVAC sensors. IC Role / Device Role / Timing Role: Delivers low-noise, low-drift reference to ADC's REF+ pin with minimal PCB real estate. Use Value: Achieves <1 LSB INL error across –40°C to +85°C without software correction, reducing firmware complexity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3425ARJZ-R7 | 2.5V output, ±0.1% initial accuracy, 3ppm/°C tempco, 3.5µA supply current, SOT23-5 package | Lower tempco and higher accuracy but limited 15mA sink/source capability; requires external 1µF output cap for stability | Select when ultra-low drift (<10ppm/°C) dominates over board space and capacitor count |
| REF3025AIDBZR | 2.5V output, ±0.2% initial accuracy, 50ppm/°C tempco, 45µA supply current, SOT23-3 package | Higher supply current and tempco, but lower cost and smaller footprint; stable with 1µF output cap | Select for cost-sensitive consumer applications where 12-bit accuracy suffices and layout area is critical |
Compared with ADR3425ARJZ-R7 and REF3025AIDBZR, MAX6029ESA25+T offers optimal balance of ultra-low power (5.75µA), industry-standard 8-pin SO compatibility, and capacitor-free stability - making it preferred for industrial handhelds requiring long battery life and proven reliability over wide temperature range.
Availability
MAX6029ESA25+T is available at Aetrix Electronics and suitable for battery-powered instruments, precision data acquisition systems, and A/D converter reference applications requiring stable component supply, long-lifecycle support, and RoHS-compliant sourcing.
Supply support for MAX6029ESA25+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 industrial, medical, and communications systems, with emphasis on low-power, high-accuracy performance.
The MAX6029ESA25+T belongs to the Ultra-Low-Power Precision Series voltage reference family, engineered specifically for high-resolution data conversion and portable instrumentation where micropower operation and tight DC accuracy are mandatory.
FAQ
What is the maximum load current the MAX6029ESA25+T can source and sink?
The MAX6029ESA25+T can source up to 4mA and sink up to 1mA of load current while maintaining specified output accuracy and stability. This capability supports direct interface with most 12–16-bit ADC reference inputs and op-amp bias networks without external buffering. Exceeding these limits risks increased dropout voltage and potential output deviation beyond ±0.15% specification.
Does the MAX6029ESA25+T require external capacitors for stability?
No, the MAX6029ESA25+T does not require external capacitors for stability due to its internally compensated design. It remains stable with output capacitances from 0 to 10µF when sourcing current and up to 0.4µF when sinking current. An optional 0.1µF ceramic capacitor on the IN pin improves transient response but is not necessary for basic operation.
What is the guaranteed temperature coefficient for MAX6029ESA25+T over –40°C to +85°C?
The MAX6029ESA25+T has a guaranteed maximum temperature coefficient of 30ppm/°C over the full –40°C to +85°C operating range, calculated using the box method per datasheet Note 2. This translates to ≤1.5mV total output drift across the temperature span, supporting 16-bit system accuracy without active calibration.
Can MAX6029ESA25+T operate from a 2.5V supply?
No - the MAX6029ESA25+T requires a minimum supply voltage of 2.7V to maintain 2.500V output within specification. At 2.5V input, the device enters dropout, causing output voltage to drop below 2.5V and violating the ±0.15% accuracy guarantee. The 200mV dropout voltage means VIN must be ≥2.7V for full-rated performance.
What is the long-term stability specification for MAX6029ESA25+T?
The MAX6029ESA25+T exhibits 150ppm maximum long-term stability after 1000 hours of operation at +25°C, representing the worst-case output voltage drift due to aging effects. This parameter supports predictable lifetime calibration intervals in metrology-grade equipment and reduces need for field recalibration in deployed instrumentation.
MAX6029ESA25+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):
- 2.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 4 mA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 30ppm/°C
- Noise - 0.1Hz to 10Hz:
- 39µVp-p
- Noise - 10Hz to 10kHz:
- 137µVrms
- Voltage - Input:
- 2.7V ~ 12.6V
- Current - Supply:
- 5.75µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX6029ESA25+T FAQ
1.How can I place an order for MAX6029ESA25+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6029ESA25+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 MAX6029ESA25+T reliable?
The price and inventory of MAX6029ESA25+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6029ESA25+T is usually 5 days.
3.What payment methods are accepted for MAX6029ESA25+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6029ESA25+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6029ESA25+T?
MAX6029ESA25+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6029ESA25+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 MAX6029ESA25+T?
For technical support, including MAX6029ESA25+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6029ESA25+T requirements.
6.How does Aetrix verify that MAX6029ESA25+T is sourced from the original manufacturer or authorized distributors?
All MAX6029ESA25+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 MAX6029ESA25+T meets industry standards.
7.What is the process for return or replacement of MAX6029ESA25+T?
All MAX6029ESA25+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6029ESA25+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 MAX6029ESA25+T part is unused and in its original packaging.
Return procedure for MAX6029ESA25+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6029ESA25+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…
