Analog Devices Inc./Maxim Integrated MAX6069BAAWS+T
- Part No.:
- MAX6069BAAWS+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 4-WFBGA, WLBGA
- Datasheet:
-
MAX6069BAAWS+T.pdf
- Description:
- IC VREF SHUNT 2.048V 4WLP
- Quantity:
- Payment:

- Shipping:

Inventory:2,830
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Product details
Overview
MAX6069BAAWS+T from Analog Devices is a precision 2.048V two-terminal shunt voltage reference in a 0.88mm × 1.16mm 4-bump wafer-level package (WLP), featuring 0.2% initial accuracy, <20ppm/°C temperature coefficient over –40°C to +85°C, and guaranteed operation down to 1.0µA. It serves as a low-power, high-accuracy voltage reference for portable sensor signal conditioning and precision ADC biasing.
For engineers reviewing the MAX6069BAAWS+T datasheet, MAX6069BAAWS+T pinout, MAX6069BAAWS+T application, or MAX6069BAAWS+T equivalent, this page delivers verified electrical specs, WLP terminal mapping, real-world use cases in loop-powered sensors and portable meters, and validated alternative options with documented parameter trade-offs.
Technical Context
The MAX6069BAAWS+T implements a laser-trimmed bandgap core with on-chip thin-film resistors to achieve 0.2% output voltage accuracy at 2.048V. Its two-terminal shunt architecture requires external bias current and operates across –40°C to +125°C, with thermal hysteresis limited to 200ppm.
It delivers ultra-low-noise performance (50µVP-P, 0.1Hz–10Hz) and reverse dynamic impedance of 1.8Ω (1.2µA–2mA), enabling stable regulation under microampere load variations. The device is factory-trimmed and does not require external calibration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.048V ±0.2% at +25°C - enables precise 12-bit ADC full-scale reference without gain trimming |
| Initial Accuracy | ±0.2% - reduces system calibration burden in portable meter designs |
| Temp Coefficient | ≤20ppm/°C (–40°C to +85°C) - ensures ≤±0.17% voltage drift over industrial temperature range |
| Min Operating Current | 1.0µA max - supports battery life extension in always-on sensor nodes |
| Reverse Dynamic Impedance | 1.8Ω (1.2µA–2mA) - maintains regulation stability during transient load steps |
| Low-Frequency Noise | 50µVP-P (0.1Hz–10Hz) - avoids noise-induced quantization error in high-resolution data acquisition |
| Operating Temp Range | –40°C to +125°C - qualified for automotive cabin and industrial edge environments |
Pinout & Package
Package: 0.88mm × 1.16mm, 4-bump wafer-level package (WLP), RoHS-compliant, top mark "+AO". Bumps A1/B1 are internally shorted OUT terminals; A2/B2 are internally shorted GND terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | OUT | Main output terminal - connect to pull-up resistor and bypass capacitor (≥0.01µF to GND) |
| A2 | GND | Reference ground - must be tied to system ground plane with minimal impedance |
| B1 | OUT | Redundant output bump - internally shorted to A1; improves current sharing and thermal distribution |
| B2 | GND | Redundant ground bump - internally shorted to A2; lowers ground path inductance in high-frequency layouts |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low operating current | Guaranteed ≤1.0µA minimum - extends coin-cell lifetime beyond 10 years in sleep-mode sensors |
| Sub-1mm² footprint | 0.88mm × 1.16mm WLP - enables placement in space-constrained wearable PCBs and MEMS modules |
| Laser-trimmed accuracy | 0.2% initial tolerance - eliminates post-assembly calibration in production test flow |
| Low thermal hysteresis | ≤200ppm - prevents measurement repeatability loss after thermal cycling in field-deployed equipment |
| Stable low-current impedance | 1.8Ω dynamic impedance at 1.2µA - ensures reference stability even when biased near minimum current |
Applications
| Portable Sensors | Precision Regulators |
|---|---|
|
Use Scenario: Battery-powered environmental sensor node measuring temperature/humidity with 16-bit sigma-delta ADC. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 2.048V reference for ADC VREF input and analog front-end biasing. Use Value: Enables ±0.005% full-scale accuracy over –25°C to +70°C without recalibration, leveraging 20ppm/°C TC and 50µVP-P noise. |
Use Scenario: Low-dropout regulator feedback network requiring sub-1% reference stability across temperature. IC Role / Device Role / Timing Role: Precision shunt reference setting regulated output voltage via resistor divider in adjustable LDO control loop. Use Value: Delivers 0.2% initial accuracy and <20ppm/°C drift - tighter than standard Zener-based references, improving output regulation to ±0.25% over –40°C to +85°C. |
| 4mA–20mA Loop-Powered Sensors | A/D and D/A Converters |
|
Use Scenario: Two-wire industrial pressure transmitter powered from 4–20mA loop with integrated signal conditioning. IC Role / Device Role / Timing Role: Reference source for current-loop DAC and sensor bridge excitation, operating from <200µA quiescent supply. Use Value: Functions reliably at 1.0µA minimum current - allows full functionality even at 4mA loop minimum, eliminating need for auxiliary power rails. |
Use Scenario: Portable multimeter using dual-slope ADC with 2.048V reference for direct decimal scaling. IC Role / Device Role / Timing Role: Primary voltage reference for ADC conversion and DAC output scaling in handheld test equipment. Use Value: Matches industry-standard 2.048V reference point for 12-bit resolution (1 LSB = 0.5mV), ensuring direct digital readout without software scaling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6007BASA+ | Same 2.048V output and 0.2% accuracy, but SO-8 package (3.9mm × 4.9mm); higher 60ppm/°C TC (–40°C to +85°C) | Requires larger PCB area; less suitable for wearables or ultra-compact modules | Select when board space permits and legacy SO-8 assembly infrastructure is in place |
| LT1004CZ-2.5#TR | 2.5V output (not 2.048V); 0.1% initial accuracy; 50ppm/°C TC; TO-92 package | Not pin-compatible; requires circuit redesign for voltage scaling and mechanical mounting | Select only if 2.5V reference is acceptable and through-hole assembly is required |
Compared with MAX6069BAAWS+T, MAX6007BASA+ trades ultra-small WLP size and superior temperature stability for ease of hand-soldering and legacy compatibility, while LT1004CZ-2.5#TR offers tighter initial accuracy but lacks the 2.048V output and microampere operation critical for modern low-power sensor systems.
Availability
MAX6069BAAWS+T is available at Aetrix Electronics and suitable for portable sensors, 4mA–20mA loop-powered transmitters, and precision ADC reference applications requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MAX6069BAAWS+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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.
The MAX6069 family was designed specifically for ultra-low-power, space-constrained precision reference needs in battery-operated instrumentation and sensor interfaces - prioritizing microampere operation, sub-1mm² packaging, and tight temperature stability.
FAQ
What is the minimum operating current specification for MAX6069BAAWS+T?
The MAX6069BAAWS+T guarantees operation down to 1.0µA maximum minimum operating current (IRMIN), measured as the lowest current at which reverse breakdown voltage changes by less than 0.2% from its value at 1.2µA. This enables reliable function in energy-harvesting and multi-year battery applications where bias current must be minimized.
Does MAX6069BAAWS+T require an external capacitor, and what value is recommended?
Yes, the MAX6069BAAWS+T requires a bypass capacitor from OUT to GND. A minimum of 0.01µF ceramic capacitor is specified for stable operation; larger values (e.g., 0.1µF) improve transient response in applications with step-load changes. The device's low dynamic impedance (1.8Ω) ensures effective decoupling even at microampere bias currents.
What is the temperature coefficient specification for MAX6069BAAWS+T over its full operating range?
The MAX6069BAAWS+T has a temperature coefficient of ≤20ppm/°C over –40°C to +85°C (Grade A), and ≤25ppm/°C over –40°C to +125°C. This is measured using the "box method" (VMAX – VMIN) / (TMAX – TMIN) and ensures predictable, bounded drift in demanding industrial and automotive environments.
How is the pinout configured on the 4-bump WLP package of MAX6069BAAWS+T?
The MAX6069BAAWS+T uses a 2×2 bump array: A1 and B1 are internally shorted OUT terminals; A2 and B2 are internally shorted GND terminals. This dual-bump configuration per function reduces current density per bump and improves thermal dissipation in the ultra-compact WLP, supporting reliable operation up to 125°C junction temperature.
Can MAX6069BAAWS+T be used as a direct replacement for LM4040B20IDBZR?
No, MAX6069BAAWS+T is not a direct replacement for LM4040B20IDBZR. While both are 2.048V shunt references, the MAX6069BAAWS+T has lower operating current (1µA vs. 60µA min), tighter tempco (20ppm/°C vs. 100ppm/°C), and a 4-bump WLP versus SOT-23. Circuit redesign is required for bias network and layout - it is a functional upgrade, not a drop-in substitute.
MAX6069BAAWS+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 4-WFBGA, WLBGA
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Shunt
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 2.048V
- Voltage - Output (Max):
- -
- Current - Output:
- 2 mA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 25ppm/°C
- Noise - 0.1Hz to 10Hz:
- 60µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- -
- Current - Supply:
- -
- Current - Cathode:
- 1 µA
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-WLP (1.16x0.88)
MAX6069BAAWS+T FAQ
1.How can I place an order for MAX6069BAAWS+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6069BAAWS+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 MAX6069BAAWS+T reliable?
The price and inventory of MAX6069BAAWS+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6069BAAWS+T is usually 5 days.
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MAX6069BAAWS+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6069BAAWS+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 MAX6069BAAWS+T?
For technical support, including MAX6069BAAWS+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6069BAAWS+T requirements.
6.How does Aetrix verify that MAX6069BAAWS+T is sourced from the original manufacturer or authorized distributors?
All MAX6069BAAWS+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 MAX6069BAAWS+T meets industry standards.
7.What is the process for return or replacement of MAX6069BAAWS+T?
All MAX6069BAAWS+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6069BAAWS+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 MAX6069BAAWS+T part is unused and in its original packaging.
Return procedure for MAX6069BAAWS+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6069BAAWS+T Tags
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