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Analog Devices Inc./Maxim Integrated MAX6162BESA
- Part No.:
- MAX6162BESA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6162BESA.pdf
- Description:
- IC VREF SERIES 0.24% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,389
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Product details
Overview
The MAX6162BESA from Maxim Integrated is a precision, low-dropout, micropower series voltage reference delivering a stable 2.048V output with ±5mV initial accuracy and 4–10ppm/°C temperature coefficient over -40°C to +85°C. It sources up to 5mA while consuming only 100–120μA quiescent current, features 200mV max dropout at 1mA, and operates from VOUT + 0.2V to 12.6V input. It is used in high-accuracy ADC biasing, portable instrumentation, and battery-powered precision analog systems.
For engineers reviewing the MAX6162BESA datasheet, MAX6162BESA pinout, MAX6162BESA application, or MAX6162BESA equivalent, key selection criteria include its 2.048V output (ideal for 12-bit DAC/ADC full-scale alignment), ultra-low supply current stability across input voltage, no external capacitor requirement, and SO-8 package compatibility with space-constrained PCB layouts.
Technical Context
The MAX6162BESA employs a proprietary curvature-correction circuit and laser-trimmed thin-film resistors to achieve tight initial accuracy and low thermal drift. Its internal compensation eliminates need for external stabilization capacitors, enabling direct connection to ADC reference inputs or op-amp feedback networks without phase-margin risk.
As a three-terminal series-mode reference, it draws supply current only when sourcing load current-unlike shunt references-making its 100μA typical IIN virtually independent of input voltage (ΔIIN/ΔVIN ≤ 8.0μA/V). It maintains regulation down to 200mV dropout and supports stable operation with ≥1μF capacitive loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.048V ±5mV at +25°C - matches standard 12-bit full-scale reference for SAR and sigma-delta ADCs |
| Temp Coefficient | 4–10ppm/°C - ensures <±0.25mV drift over -40°C to +85°C ambient range |
| Quiescent Current | 100–120μA - enables >10-year battery life in 10μA-average IoT sensor nodes |
| Dropout Voltage | ≤200mV at 1mA - allows operation from 2.25V supply in single-cell Li-ion or coin-cell systems |
| Load Regulation | 0.5–0.9mV/mA sourcing - holds reference error <±4.5mV across full 5mA load range |
| Noise (0.1–10Hz) | 22μVp-p - contributes <0.01 LSB error in 16-bit 2.048V-range converters |
| Ripple Rejection | 78dB at 120Hz - suppresses AC line noise in offline-powered instrumentation |
Pinout & Package
MAX6162BESA is housed in an 8-pin SO (Small Outline) package with exposed pad (RoHS-compliant, lead-free). Pins 1, 3, 5, 7, and 8 are No Connect (N.C.), internally unconnected. Pin 2 is IN (input voltage), Pin 4 is GND (ground reference), and Pin 6 is OUT (precision 2.048V output).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 2 (IN) | Input Supply Terminal | Accepts 2.248V to 12.6V; supplies internal bandgap core and output stage |
| 4 (GND) | Analog Ground Reference | Low-impedance return path for reference output and internal bias currents |
| 6 (OUT) | Precision Voltage Output | Delivers regulated 2.048V ±5mV; directly drives ADC REF pins or op-amp non-inverting inputs |
| 1,3,5,7,8 (N.C.) | No Connection | Must remain unconnected on PCB; no internal bonding or functionality |
Key Features
| Feature | Design Value |
|---|---|
| Laser-trimmed thin-film resistors | Enables ±5mV initial accuracy and 4–10ppm/°C TC without post-package calibration |
| Internally compensated architecture | Eliminates need for external output capacitor-reduces BOM count and saves >2mm² board area |
| Supply-current independence | ΔIIN/ΔVIN ≤ 8.0μA/V ensures stable power budget across varying battery voltage |
| Stable with 1μF capacitive loads | Supports direct connection to switched-capacitor ADCs or noisy digital loads without oscillation |
| Low 200mV dropout | Permits use in 2.5V or lower supply rails-critical for ultra-low-voltage microcontroller systems |
Applications
| Portable Instrumentation | High-Resolution Data Acquisition |
|---|---|
Use Scenario: Handheld DMMs and portable gas analyzers requiring stable 2.048V reference for 12-bit ADC conversion under varying battery voltage and temperature. IC Role / Device Role / Timing Role: Primary voltage reference for successive-approximation ADC front-end, providing ratiometric scaling against sensor excitation. Use Value: 4–10ppm/°C TC and ±5mV accuracy ensure <±0.5 LSB total error over full operating range without software calibration. | Use Scenario: Industrial data loggers sampling thermocouples and RTDs using 16-bit sigma-delta ADCs powered from isolated DC-DC converters. IC Role / Device Role / Timing Role: Low-noise, low-drift reference source for ADC reference input (REF+), decoupled from noisy digital supply domains. Use Value: 22μVp-p (0.1–10Hz) noise and 78dB ripple rejection prevent AC coupling artifacts in sub-100μV measurement resolution. |
| Battery-Powered IoT Sensors | Precision +3.3V Systems |
Use Scenario: Wireless environmental sensors (CO₂, humidity) operating from CR2032 coin cells with 10-year target lifetime and wake-on-event operation. IC Role / Device Role / Timing Role: Always-on reference for ultra-low-power ADC and comparator circuits during sleep and active modes. Use Value: 100μA typical IIN and supply-independent current draw enable predictable battery modeling and eliminate load-dependent discharge spikes. | Use Scenario: FPGA-based motor control boards where 2.048V reference feeds ADCs monitoring phase currents and bus voltage in 3.3V logic domain. IC Role / Device Role / Timing Role: Stable, low-impedance reference node shared across multiple ADC channels and analog monitoring circuits. Use Value: 5mA sourcing capability and 0.9mV/mA load regulation support simultaneous multi-channel sampling without reference droop. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5020IDR | 2.048V, ±1mV initial accuracy, 3ppm/°C TC, 1.2mA quiescent current, SO-8 | Higher accuracy and lower drift but 12× higher supply current; requires external 1μF output cap | Select for metrology-grade systems where drift dominates error budget and power is secondary |
| ADR3420ARJZ-R7 | 2.048V, ±2mV initial accuracy, 10ppm/°C TC, 120μA IQ, SOT-23-5 | Same accuracy grade as MAX6162BESA but smaller SOT-23 package; 2mA max output current | Select when board space is critical and 2mA load current suffices; verify layout thermal derating for SO-8 vs SOT-23 |
Compared with REF5020IDR and ADR3420ARJZ-R7, the MAX6162BESA offers the best balance of ultra-low quiescent current (100μA), robust 5mA sourcing, and zero external capacitor requirement-making it optimal for battery longevity and layout simplicity in portable 12-bit measurement systems.
Availability
MAX6162BESA is available at Aetrix Electronics and suitable for portable instrumentation, high-resolution data acquisition, and battery-powered IoT sensors requiring stable component supply with guaranteed long-term availability and traceable lot history.
Supply support for MAX6162BESA 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 and mixed-signal ICs for industrial, medical, and communications applications, emphasizing low-power, high-accuracy performance.
The MAX6161–MAX6168 family was engineered specifically for micropower, low-dropout voltage referencing in space- and energy-constrained systems-prioritizing supply-current efficiency, no-external-capacitor operation, and factory-trimmed stability over raw speed or ultra-high precision.
FAQ
What is the maximum load current the MAX6162BESA can source while maintaining regulation?
The MAX6162BESA can source up to 5mA while maintaining output voltage regulation within its specified load regulation limit of 0.9mV/mA. At 5mA load, the output voltage change remains ≤±4.5mV relative to no-load value, ensuring stable reference performance for multi-channel ADCs or op-amp bias networks. This capability is confirmed in the Electrical Characteristics table for MAX6162 under "Load Regulation" sourcing condition.
Does the MAX6162BESA require an external output capacitor for stability?
No, the MAX6162BESA does not require an external output capacitor for stability due to its internally compensated architecture. The device remains stable with capacitive loads up to 1μF, and many applications-including space-critical portable designs-operate reliably with no output capacitor. An optional 0.1μF ceramic capacitor may be added at the output to improve transient response if step-load changes exceed 2mA.
What is the minimum input voltage required for the MAX6162BESA to regulate at 2.048V output?
The minimum input voltage for the MAX6162BESA is VOUT + 0.2V = 2.248V, as specified in the Electrical Characteristics table under "Supply Voltage Range". At 1mA load, the dropout voltage is guaranteed ≤200mV, meaning regulation is maintained down to 2.248V input. Below this, output voltage drops linearly with input; operation below 2.248V is outside guaranteed specification.
How does the MAX6162BESA's supply current vary with input voltage?
The MAX6162BESA exhibits exceptional supply current stability: its quiescent current varies by only 3.4–8.0μA/V across the full input range (VOUT + 0.2V to 12.6V). At +25°C, typical IIN is 100μA and remains nearly constant-unlike shunt references-because it draws current only when sourcing load. This behavior is documented in the "Change in Supply Current" parameter (ΔIIN/ΔVIN) for MAX6162.
Is the MAX6162BESA compatible with RoHS-compliant assembly processes?
Yes, the MAX6162BESA is supplied in a lead(Pb)-free, RoHS-compliant 8-pin SO package (package code S8+2). The "+" suffix in the part number explicitly denotes RoHS compliance per Maxim Integrated's ordering guide. It supports standard reflow profiles including JEDEC J-STD-020, with peak solder temperature rated to +300°C for 10 seconds.
MAX6162BESA 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:
- Obsolete
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 2.048V
- Voltage - Output (Max):
- -
- Current - Output:
- 5 mA
- Tolerance:
- ±0.24%
- Temperature Coefficient:
- 10ppm/°C
- Noise - 0.1Hz to 10Hz:
- 22µVp-p
- Noise - 10Hz to 10kHz:
- 25µVrms
- Voltage - Input:
- 2.5V ~ 12.6V
- Current - Supply:
- 120µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX6162BESA FAQ
1.How can I place an order for MAX6162BESA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6162BESA 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 MAX6162BESA reliable?
The price and inventory of MAX6162BESA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6162BESA is usually 5 days.
3.What payment methods are accepted for MAX6162BESA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6162BESA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6162BESA?
MAX6162BESA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6162BESA 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 MAX6162BESA?
For technical support, including MAX6162BESA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6162BESA requirements.
6.How does Aetrix verify that MAX6162BESA is sourced from the original manufacturer or authorized distributors?
All MAX6162BESA 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 MAX6162BESA meets industry standards.
7.What is the process for return or replacement of MAX6162BESA?
All MAX6162BESA units undergo pre-shipment inspection (PSI). If there is an issue with MAX6162BESA, 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 MAX6162BESA part is unused and in its original packaging.
Return procedure for MAX6162BESA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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