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Analog Devices Inc./Maxim Integrated MAX6165BESA+
- Part No.:
- MAX6165BESA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6165BESA+.pdf
- Description:
- IC VREF SERIES 0.1% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:120
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Product details
Overview
MAX6165BESA+ from Maxim Integrated is a precision, low-dropout, micropower series voltage reference delivering a stable 5.000V output with ±5mV initial accuracy and 4ppm/°C to 10ppm/°C max temperature coefficient over -40°C to +85°C. It sources up to 5mA, sinks 2mA, operates from VOUT + 0.2V (5.2V) to 12.6V, and draws only 100–120µA quiescent current-ideal for high-accuracy ADC biasing in portable 5V systems.
For engineers reviewing the MAX6165BESA+ datasheet, MAX6165BESA+ pinout, MAX6165BESA+ application, or MAX6165BESA+ equivalent, key selection criteria include its 5.000V output tolerance, ultra-low 8µA/V supply-current variation, dropout as low as 50mV at 1mA, stability with 1µF capacitive loads, and SO-8 package compatibility with space-constrained battery-powered designs.
Technical Context
The MAX6165BESA+ employs a proprietary curvature-correction circuit and laser-trimmed thin-film resistors to achieve tight initial accuracy and low thermal drift. Its BiCMOS process enables internal compensation-eliminating need for external stabilization capacitors while maintaining stability across load and line variations.
As a three-terminal series-mode reference, it delivers supply-current independence from input voltage (ΔIIN/ΔVIN ≤ 8.0µA/V), avoids wasted bias current typical of shunt references, and supports continuous short-circuit protection to GND or IN when VIN ≤ 6V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000V ±5mV at +25°C - ensures precise full-scale calibration for 5V ADCs and DACs |
| Temp Coefficient | 4–10ppm/°C max - guarantees <±0.4mV drift over full -40°C to +85°C range |
| Dropout Voltage | 50–200mV at 1mA - enables operation from 5.2V input, critical for low-voltage battery systems |
| Quiescent Current | 100–120µA typ - extends battery life in always-on sensor nodes and portable meters |
| Load Regulation | 0.6–0.9mV/mA sourcing - maintains <±4.5mV error under full 5mA load variation |
| Noise (0.1–10Hz) | 60µVp-p - low enough for 16-bit+ data acquisition without additional filtering |
| Ripple Rejection | 65dB at 120Hz - suppresses AC line noise in offline-powered instrumentation |
Pinout & Package
MAX6165BESA+ 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 and must remain floating. Pin 2 is the input (IN), Pin 4 is ground (GND), and Pin 6 is the precision reference output (OUT).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 2 (IN) | Input voltage supply | Accepts 5.2V–12.6V; requires local 0.1µF ceramic bypass for optimal line transient response |
| Pin 4 (GND) | Analog ground reference | Must be connected to clean system ground plane; shared return for IN and OUT paths |
| Pin 6 (OUT) | Precision reference output | Delivers regulated 5.000V; stable with 0–1µF capacitive loads; no external compensation needed |
| Pins 1,3,5,7,8 | No Connection | Not bonded; must be left unconnected-no routing or grounding required |
Key Features
| Feature | Design Value |
|---|---|
| Laser-trimmed thin-film resistors | Enables ±5mV initial accuracy and 4–10ppm/°C tempco without post-package trimming |
| Internally compensated architecture | Eliminates need for external output capacitor-saves PCB area in compact handheld devices |
| Supply-current independence | Only 3.1–8.0µA/V variation ensures predictable power budget across wide input range |
| Low-output-impedance design | Supports 5mA sourcing and 2mA sinking while maintaining <±0.9mV/mA regulation |
| Stable with 1µF capacitive loads | Allows use with large decoupling caps on noisy digital supplies without oscillation risk |
Applications
| Portable Battery-Powered Systems | High-Accuracy Data Acquisition |
|---|---|
Use Scenario: Powering analog front-ends in handheld multimeters and portable gas analyzers operating from single Li-ion cells. IC Role / Device Role / Timing Role: Provides stable 5.000V reference for SAR ADCs and precision op-amp bias networks. Use Value: Enables ±0.01% measurement repeatability over temperature and battery discharge cycle. | Use Scenario: Calibrating 16-bit delta-sigma ADCs in industrial process monitors with isolated 5V supplies. IC Role / Device Role / Timing Role: Serves as primary reference for ADC conversion and DAC output scaling. Use Value: Delivers <60µVp-p low-frequency noise and 65dB ripple rejection-meeting EN 61326-1 immunity requirements. |
| Notebook Computer Power Management | Precision +5V Systems |
Use Scenario: Supplying reference voltage to voltage-monitoring ICs and battery fuel gauges in ultrabooks. IC Role / Device Role / Timing Role: Generates accurate threshold for system reset and brown-out detection circuits. Use Value: Guarantees reliable reset assertion within ±5mV over -40°C to +85°C ambient-preventing false shutdowns. | Use Scenario: Biasing reference inputs of programmable logic controllers (PLCs) and test equipment requiring stable +5V rails. IC Role / Device Role / Timing Role: Acts as master reference for multiple downstream LDOs and signal-conditioning stages. Use Value: Maintains <±0.4mV total drift across temperature, enabling long-term calibration intervals (>12 months). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5050IDR | 5.0V output, ±0.5mV initial accuracy, 3ppm/°C max tempco, 100µA IQ, SO-8 | Higher accuracy and lower drift; requires 1µF output cap for stability | Select for metrology-grade systems where ±0.5mV error budget is mandatory |
| ADR4550BRZ | 5.0V output, ±1.5mV initial accuracy, 3ppm/°C max tempco, 950µA IQ, SO-8 | Lower noise (4.5µVRMS), higher quiescent current, needs external compensation | Choose when ultra-low noise dominates over power consumption in precision DAQ |
Compared with REF5050IDR and ADR4550BRZ, MAX6165BESA+ offers the lowest quiescent current (100µA vs. ≥950µA) and capacitor-free operation-making it optimal for battery longevity and board-space-constrained designs-while trading modestly higher initial error (±5mV) and drift (4–10ppm/°C) for significant system-level power and layout simplification.
Availability
MAX6165BESA+ is available at Aetrix Electronics and suitable for portable battery-powered systems, high-accuracy data acquisition, notebook computer power management, and precision +5V systems requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for MAX6165BESA+ 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 high-performance analog, mixed-signal, and power-management ICs for demanding industrial, automotive, and communications applications.
The MAX6161–MAX6168 family was engineered specifically for space- and power-sensitive applications requiring precision voltage references with zero external components-targeting portable instrumentation, battery-operated sensors, and compact embedded control systems.
FAQ
What is the guaranteed initial accuracy of the MAX6165BESA+ at +25°C?
The MAX6165BESA+ has a guaranteed initial output voltage accuracy of ±5mV at +25°C, corresponding to a 5.000V nominal output ranging from 4.995V to 5.005V. This specification is validated across 100% production testing and applies over the full -40°C to +85°C operating temperature range per design guarantee.
Does the MAX6165BESA+ require an external output capacitor for stability?
No, the MAX6165BESA+ does not require an external output capacitor for stability due to its internally compensated architecture. It remains stable with capacitive loads from 0 to 1µF. Adding a 1µF capacitor improves transient response during step-load changes but is optional-not necessary for basic regulation integrity.
What is the minimum input voltage required for the MAX6165BESA+ to maintain regulation at 5mA load?
The MAX6165BESA+ requires a minimum input voltage of VOUT + 0.2V = 5.2V to maintain regulation at 1mA load; at 5mA, the dropout increases slightly but remains ≤200mV. Thus, 5.4V input ensures full 5mA sourcing capability across temperature and process variation-verified per electrical characteristics table and typical operating curves.
How does the supply current of the MAX6165BESA+ vary with input voltage?
The MAX6165BESA+ exhibits a supply current variation of only 3.1–8.0µA/V across its input range (5.2V to 12.6V), meaning total quiescent current stays tightly bounded between 100µA and 120µA. This near-constant IQ eliminates dynamic power budget uncertainty in variable-input applications like USB-powered or adapter-fed instruments.
Can the MAX6165BESA+ sink current, and if so, what is its maximum sink capability?
Yes, the MAX6165BESA+ can sink up to 2mA of load current. Its sinking performance is characterized at 1.5–4mV/mA load regulation, ensuring predictable behavior when used in active bias networks or current-sinking reference configurations-such as driving the reference input of certain DACs or comparator hysteresis circuits.
MAX6165BESA+ 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:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 5 mA
- Tolerance:
- ±0.1%
- Temperature Coefficient:
- 10ppm/°C
- Noise - 0.1Hz to 10Hz:
- 60µVp-p
- Noise - 10Hz to 10kHz:
- 60µVrms
- Voltage - Input:
- 5.2V ~ 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
MAX6165BESA+ FAQ
1.How can I place an order for MAX6165BESA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6165BESA+ 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 MAX6165BESA+ reliable?
The price and inventory of MAX6165BESA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6165BESA+ is usually 5 days.
3.What payment methods are accepted for MAX6165BESA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6165BESA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6165BESA+?
MAX6165BESA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6165BESA+ 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 MAX6165BESA+?
For technical support, including MAX6165BESA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6165BESA+ requirements.
6.How does Aetrix verify that MAX6165BESA+ is sourced from the original manufacturer or authorized distributors?
All MAX6165BESA+ 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 MAX6165BESA+ meets industry standards.
7.What is the process for return or replacement of MAX6165BESA+?
All MAX6165BESA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6165BESA+, 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 MAX6165BESA+ part is unused and in its original packaging.
Return procedure for MAX6165BESA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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