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Analog Devices Inc./Maxim Integrated MAX6163BESA
- Part No.:
- MAX6163BESA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6163BESA.pdf
- Description:
- IC VREF SERIES 0.17% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,573
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Product details
Overview
MAX6163BESA from Maxim Integrated is a precision, low-dropout, micropower series voltage reference delivering a stable 3.000V output referenced to ground. It features ±5mV initial accuracy, 4–10ppm/°C temperature coefficient (max), 200mV max dropout at 1mA load, and operates from VOUT + 0.2V to 12.6V input. Designed for high-accuracy ADC biasing in portable instrumentation and battery-powered precision systems.
For engineers reviewing the MAX6163BESA datasheet, MAX6163BESA pinout, MAX6163BESA application, or MAX6163BESA equivalent, key selection criteria include guaranteed 3.000V output stability over -40°C to +85°C, ultra-low 100–120µA quiescent current, no external capacitor requirement, and SO-8 package compatibility with space-constrained PCB layouts.
Technical Context
The MAX6163BESA employs a proprietary curvature-correction circuit and laser-trimmed thin-film resistors to achieve low thermal drift. Its internal compensation eliminates need for external stabilization capacitors, enabling direct connection to ADC reference inputs without added board area.
As a three-terminal series-mode reference, it sources up to 5mA while sinking 2mA, with supply current varying only 3.2–8.0µA/V across its input range - a critical advantage over shunt-mode alternatives that waste current via fixed bias resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.000V ±5mV at +25°C; ensures precise full-scale calibration for 12-bit+ ADCs |
| Temp Coefficient | 4–10ppm/°C max; limits output drift to ≤240ppm over -40°C to +85°C |
| Dropout Voltage | 50–200mV at 1mA; enables operation from 3.2V supply in 3.3V systems |
| Quiescent Current | 100–120µA typical; supports >1-year battery life in 10µA-sleep IoT sensors |
| Load Regulation | 0.5–0.9mV/mA sourcing; maintains <±4.5mV error under full 5mA load variation |
| Noise (0.1–10Hz) | 35µVp-p; contributes <0.012 LSB error in 16-bit 3V ADCs |
| Ripple Rejection | 76dB at 120Hz; suppresses AC line noise in offline-powered measurement front-ends |
Pinout & Package
MAX6163BESA is housed in an 8-pin SO (Small Outline) package with exposed pad option not specified; pin 1–3,5,7,8 are No Connect (N.C.), pin 2 is IN, pin 4 is GND, and pin 6 is OUT.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 2) | Input voltage supply | Accepts 3.2V–12.6V; must be decoupled with 0.1µF ceramic near pin for optimal transient response |
| GND (Pin 4) | Reference ground | Low-impedance return path; must connect directly to system analog ground plane |
| OUT (Pin 6) | Precision reference output | Provides 3.000V ±5mV; drives ADC REF pins, DAC references, or comparator thresholds |
| N.C. (Pins 1,3,5,7,8) | No internal connection | Must remain unconnected; floating or tied to GND/IN has no functional impact |
Key Features
| Feature | Design Value |
|---|---|
| Initial accuracy ±5mV | Enables single-point calibration in portable DMMs without trimming potentiometers |
| Stable with 1µF capacitive loads | Allows direct interface to switched-capacitor ADCs and SAR converters without oscillation risk |
| No external compensation capacitor required | Saves ≥2mm² PCB area per reference in multi-channel data acquisition modules |
| Supply-current independence (≤8µA/V variation) | Eliminates input-voltage-dependent error in battery-discharge monitoring circuits |
| 2mA sink capability | Supports active pull-down of reference nodes during power-down sequencing |
Applications
| Portable DMMs | Industrial Data Loggers |
|---|---|
Use Scenario: Handheld digital multimeters requiring stable 3V reference for 4½-digit DC voltage measurement. IC Role / Device Role / Timing Role: Primary voltage reference for dual-slope or sigma-delta ADC front-end. Use Value: ±5mV initial accuracy and 10ppm/°C drift ensure <0.02% reading error across operating temperature range. | Use Scenario: Battery-powered environmental sensor nodes logging temperature/humidity with 16-bit resolution. IC Role / Device Role / Timing Role: Reference source for successive-approximation ADC sampling analog sensor outputs. Use Value: 100µA quiescent current extends 2xAA battery life beyond 2 years in 1-sample-per-minute duty cycle. |
| Medical Patient Monitors | Test & Measurement Equipment |
Use Scenario: Portable ECG devices needing calibrated 3V reference for analog front-end gain stages and ADC biasing. IC Role / Device Role / Timing Role: Precision DC bias generator for instrumentation amplifiers and anti-alias filters. Use Value: Low 35µVp-p noise prevents baseline wander artifacts in sub-mV biopotential signals. | Use Scenario: Benchtop power supply modules requiring accurate 3V setpoint generation with minimal thermal drift. IC Role / Device Role / Timing Role: Feedback reference for programmable voltage regulator control loop. Use Value: 4ppm/°C max TCVOUT ensures <±0.1% output tolerance over ambient lab temperature swings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3030AIDBZR | 3.0V output, ±1.5mV initial accuracy, 50ppm/°C max TCV, SOT-23-3 package | Higher accuracy but worse thermal stability; limited to 25mA load, no sink capability | Choose for cost-sensitive, low-power designs where 50ppm/°C drift is acceptable and PCB space is extremely constrained |
| ADR3430ARJZ-R7 | 3.0V output, ±2mV initial accuracy, 10ppm/°C max TCV, SOT-23-5 package, 4.5µA typical IQ | Lower quiescent current but only 15mA max source current; requires 1µF output cap for stability | Prefer when ultra-low sleep current dominates design priority and external capacitor placement is feasible |
Compared with REF3030AIDBZR and ADR3430ARJZ-R7, MAX6163BESA offers superior thermal stability (4–10ppm/°C vs. 50ppm/°C or 10ppm/°C), integrated sink capability (2mA), and capacitor-free operation - making it optimal for high-precision, mixed-signal industrial and medical systems where layout simplicity and long-term drift matter most.
Availability
MAX6163BESA is available at Aetrix Electronics and suitable for portable instrumentation, battery-powered data loggers, and medical monitoring equipment requiring stable component supply and long-lifecycle support.
Supply support for MAX6163BESA 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 is a semiconductor company specializing in analog and mixed-signal ICs for industrial, communications, computing, and consumer applications.
The MAX6161–MAX6168 family was designed to deliver high-accuracy, low-power voltage references for precision data conversion systems operating from single-cell batteries or low-voltage rails.
FAQ
What is the guaranteed initial accuracy of MAX6163BESA over temperature?
The MAX6163BESA guarantees ±5mV initial output voltage error at +25°C, with total error over -40°C to +85°C bounded by its 4–10ppm/°C temperature coefficient and long-term stability of 80ppm/1000hr. This ensures worst-case deviation remains within ±8.5mV across full industrial temperature range, critical for uncalibrated field-deployed sensors.
Does MAX6163BESA require an external output capacitor for stability?
No, MAX6163BESA is internally compensated and does not require an external output capacitor for stability. It remains stable with capacitive loads up to 1µF, allowing direct connection to ADC reference inputs without added components - a key advantage for space-constrained PCBs in handheld test equipment.
What is the maximum load current MAX6163BESA can source and sink?
MAX6163BESA can source up to 5mA and sink up to 2mA while maintaining specified accuracy and regulation. This dual-direction capability supports active discharge of reference nodes during power-down sequences and enables driving moderate-capacitance ADC inputs without external buffers.
How does the supply current of MAX6163BESA vary with input voltage?
MAX6163BESA exhibits exceptional supply current stability: quiescent current varies only 3.2–8.0µA per volt across its input range (3.2V to 12.6V), resulting in <±60µA total variation. This near-constant draw simplifies power budgeting in wide-input-voltage systems like automotive accessory modules.
Can MAX6163BESA be used in place of MAX6163AESA?
Yes, MAX6163BESA is a direct replacement for MAX6163AESA in applications tolerant of ±5mV initial accuracy instead of ±2mV. Both share identical pinout, package, temperature range, and all dynamic specifications - only the initial trim tolerance differs, making B-grade suitable for cost-optimized designs where minor calibration margin exists.
MAX6163BESA 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):
- 3V
- Voltage - Output (Max):
- -
- Current - Output:
- 5 mA
- Tolerance:
- ±0.17%
- Temperature Coefficient:
- 10ppm/°C
- Noise - 0.1Hz to 10Hz:
- 35µVp-p
- Noise - 10Hz to 10kHz:
- 40µVrms
- Voltage - Input:
- 3.2V ~ 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
MAX6163BESA FAQ
1.How can I place an order for MAX6163BESA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6163BESA 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 MAX6163BESA reliable?
The price and inventory of MAX6163BESA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6163BESA is usually 5 days.
3.What payment methods are accepted for MAX6163BESA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6163BESA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6163BESA?
MAX6163BESA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6163BESA 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 MAX6163BESA?
For technical support, including MAX6163BESA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6163BESA requirements.
6.How does Aetrix verify that MAX6163BESA is sourced from the original manufacturer or authorized distributors?
All MAX6163BESA 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 MAX6163BESA meets industry standards.
7.What is the process for return or replacement of MAX6163BESA?
All MAX6163BESA units undergo pre-shipment inspection (PSI). If there is an issue with MAX6163BESA, 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 MAX6163BESA part is unused and in its original packaging.
Return procedure for MAX6163BESA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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