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Analog Devices Inc./Maxim Integrated MAX6006BESA+
- Part No.:
- MAX6006BESA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6006BESA+.pdf
- Description:
- IC VREF SHUNT 0.5% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:273
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Product details
Overview
The MAX6006BESA+ from Maxim Integrated is a precision 1.25V two-terminal shunt voltage reference in an 8-pin SO package, featuring 0.5% initial accuracy, 75ppm/°C temperature coefficient, and guaranteed operation down to 1.0µA. It serves as a low-power, high-stability reference for battery-powered instrumentation and precision ADC/DAC biasing.
For engineers reviewing the MAX6006BESA+ datasheet, MAX6006BESA+ pinout, MAX6006BESA+ application, or MAX6006BESA+ equivalent, key selection factors include its 1.25V output tolerance, ultra-low 1µA minimum operating current, SO-8 thermal performance (θJA = 136°C/W), and compatibility with 0.01µF output bypassing in space-constrained analog signal chains.
Technical Context
The MAX6006BESA+ implements a laser-trimmed bandgap core with on-chip thin-film resistors to achieve stable 1.25V output across -40°C to +85°C. Its two-terminal architecture requires external biasing via RBIAS to set reverse current between 1.0µA and 2mA, enabling use in both shunt regulator and precision current source topologies.
Unlike series references, it operates as a voltage-controlled current sink: output voltage is maintained by regulating reverse current through the OUT–GND path. Dynamic impedance is 1.5Ω (typ) over 1.2µA–2mA, and low-frequency noise is 30µVP-P (0.1Hz–10Hz) at 1.2µA bias.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.25V ±0.5% (1.2438V to 1.2563V at 25°C, 1.2µA) |
| Initial Accuracy | ±0.5% - defines maximum deviation from nominal 1.25V at 25°C before calibration |
| Temp Coefficient | 75ppm/°C max - ensures ≤93.75µV/°C drift over full -40°C to +85°C range |
| Min Operating Current | 1.0µA max - enables operation in µA-level power budgets without dropout |
| Reverse Dynamic Impedance | 1.5Ω typ - determines load regulation error under varying sink current |
| Low-Freq Noise | 30µVP-P (0.1Hz–10Hz) - critical for high-resolution 16-bit+ ADC reference stability |
| Long-Term Drift | 150ppm/1000h - sets baseline for system calibration interval in field-deployed equipment |
Pinout & Package
MAX6006BESA+ uses an 8-pin SO (Small Outline) package (package code S8+2, outline 21-0041), with thermal resistance θJA = 136°C/W on multilayer board. Pin 1 is OUT, Pin 4 is GND; Pins 1, 2, 3, 5, 7 are NC; Pin 6 and Pin 8 are also NC per official pin description.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT | Reference output node; must be biased above 1.25V via external resistor and bypassed to GND with ≥0.01µF capacitor |
| 4 | GND | Ground reference for output voltage; forms return path for reverse current |
| 2, 3, 5, 6, 7, 8 | N.C. | No internal connection; must remain unconnected or grounded per design guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low operating current | Guaranteed ≤1.0µA min current enables >10-year battery life in portable meters |
| Laser-trimmed bandgap core | Delivers 1.25V output with 0.5% accuracy without external calibration |
| Low thermal hysteresis | 200ppm max ensures repeatable voltage after thermal cycling in industrial environments |
| Stable dynamic impedance | 1.5Ω typical over 1.2µA–2mA supports consistent load regulation in varying current-sink conditions |
| 0.01µF bypass compatibility | Enables compact layout in space-critical medical sensors and handheld test gear |
Applications
| Battery-Powered Portable Meters | Precision ADC Reference |
|---|---|
Use Scenario: Handheld multimeters and clamp meters operating from coin-cell or AA batteries with multi-year runtime requirements. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 1.25V reference for 24-bit sigma-delta ADC front-end. Use Value: 1.0µA minimum operating current extends battery life; 75ppm/°C TC ensures <±0.1% reading error across operating temperature range. | Use Scenario: Industrial data acquisition modules requiring 16-bit+ resolution with minimal self-heating error. IC Role / Device Role / Timing Role: Precision DC reference for SAR and delta-sigma ADCs in programmable logic controllers. Use Value: 30µVP-P low-frequency noise prevents LSB toggling; 150ppm/1000h long-term drift supports annual calibration cycles. |
| Low-Power Sensor Signal Conditioning | Compact Precision Regulator |
Use Scenario: Wireless environmental sensors (temperature/humidity) transmitting via BLE or LoRaWAN with intermittent wake-up. IC Role / Device Role / Timing Role: Bias reference for op-amp instrumentation amplifiers driving low-power ADCs. Use Value: SO-8 footprint allows integration into 12mm × 12mm sensor PCBs; 1.25V output matches common rail-to-rail op-amp input ranges. | Use Scenario: Space-constrained medical devices (e.g., infusion pump controllers) needing local 1.25V bias for analog monitoring circuits. IC Role / Device Role / Timing Role: Two-terminal shunt regulator replacing discrete Zener + resistor networks. Use Value: Eliminates 2–3 passive components; 1.5Ω dynamic impedance yields <1.5mV load regulation error across 100µA–1.5mA sink current. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM4040C12IDR | 1.225V output, 0.5% accuracy, 100ppm/°C TC, SOT23-3 package | Higher tempco and different nominal voltage require circuit recalibration | Select when SOT23 footprint and lower cost outweigh need for tighter TC and exact 1.25V match |
| LT1004CZ-1.2 | 1.2V output, 0.5% accuracy, 50ppm/°C TC, TO-92 package | TO-92 through-hole mounting incompatible with automated SO-8 assembly | Select for legacy designs using through-hole assembly or where 50ppm/°C TC is mandatory |
Compared with LM4040C12IDR and LT1004CZ-1.2, the MAX6006BESA+ offers superior thermal stability margin (75ppm vs. 100/50ppm), exact 1.25V output matching common DAC/ADC reference inputs, and surface-mount SO-8 compatibility with standard reflow processes - making it optimal for new high-density, battery-operated analog systems.
Availability
MAX6006BESA+ is available at Aetrix Electronics and suitable for battery-powered portable meters, precision ADC reference circuits, and low-power sensor signal conditioning requiring stable component supply and RoHS-compliant packaging.
Supply support for MAX6006BESA+ 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 applications.
The MAX6006–MAX6009 family targets ultra-low-power, high-accuracy voltage referencing in space-constrained systems - specifically engineered to replace legacy shunt references like LM385 and LT1004 with improved initial accuracy, lower operating current, and enhanced thermal stability.
FAQ
What is the guaranteed minimum operating current for MAX6006BESA+?
The MAX6006BESA+ guarantees a maximum minimum operating current of 1.0µA, meaning it maintains regulation with reverse current as low as 1.0µA at 25°C. This value is tested to ensure <0.2% change in reverse breakdown voltage relative to its value at 1.2µA, enabling reliable operation in µA-level power budgets typical of energy-harvesting and long-life battery systems.
Does MAX6006BESA+ require an output capacitor, and if so, what value?
Yes, the MAX6006BESA+ requires an output capacitor of at least 0.01µF connected between OUT and GND. This capacitor stabilizes the reference against transient load changes and reduces noise; larger values improve transient response but may increase turn-on settling time. The device's stability is validated with this minimum capacitance, and omitting it risks oscillation or excessive output voltage ripple in sensitive measurement circuits.
What is the pin configuration of MAX6006BESA+, and how should unused pins be handled?
The MAX6006BESA+ uses an 8-pin SO package with Pin 1 as OUT, Pin 4 as GND, and Pins 2, 3, 5, 6, 7, 8 designated N.C. (no internal connection). Per Maxim's official pin description, all N.C. pins must remain unconnected or tied to GND - they are not reserved for future functionality and have no electrical role in MAX6006BESA+ operation.
How does the temperature coefficient of MAX6006BESA+ compare to the 'A' grade variant?
The MAX6006BESA+ has a maximum temperature coefficient of 75ppm/°C, whereas the MAX6006AESA+ variant is rated at 30ppm/°C. This means the 'B' grade exhibits up to 2.5× greater voltage drift over temperature - for example, a 125°C span yields ±9.375mV drift for MAX6006BESA+ versus ±3.75mV for the 'A' grade - making the 'B' grade suitable for cost-sensitive applications where moderate thermal stability suffices.
Can MAX6006BESA+ be used as a direct replacement for LT1004 in SO-8 designs?
Yes, MAX6006BESA+ is explicitly offered as a plug-in upgrade for LT1004 in 8-pin SO packages. It matches LT1004's pinout (OUT on Pin 1, GND on Pin 4), provides identical 1.25V nominal output, and improves upon LT1004 with tighter initial accuracy (0.5% vs. typical 1%), lower minimum operating current (<1µA vs. ~20µA), and better long-term stability (150ppm/1000h vs. unspecified for LT1004).
MAX6006BESA+ 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:
- Shunt
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 1.25V
- Voltage - Output (Max):
- -
- Current - Output:
- 2 mA
- Tolerance:
- ±0.5%
- Temperature Coefficient:
- 75ppm/°C
- Noise - 0.1Hz to 10Hz:
- 30µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- -
- Current - Supply:
- -
- Current - Cathode:
- 1 µA
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX6006BESA+ FAQ
1.How can I place an order for MAX6006BESA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6006BESA+ 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 MAX6006BESA+ reliable?
The price and inventory of MAX6006BESA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6006BESA+ is usually 5 days.
3.What payment methods are accepted for MAX6006BESA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6006BESA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6006BESA+?
MAX6006BESA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6006BESA+ 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 MAX6006BESA+?
For technical support, including MAX6006BESA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6006BESA+ requirements.
6.How does Aetrix verify that MAX6006BESA+ is sourced from the original manufacturer or authorized distributors?
All MAX6006BESA+ 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 MAX6006BESA+ meets industry standards.
7.What is the process for return or replacement of MAX6006BESA+?
All MAX6006BESA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6006BESA+, 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 MAX6006BESA+ part is unused and in its original packaging.
Return procedure for MAX6006BESA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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