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Analog Devices Inc./Maxim Integrated MAX6163BESA+T
- Part No.:
- MAX6163BESA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6163BESA+T.pdf
- Description:
- IC VREF SERIES 0.17% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,658
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Product details
Overview
MAX6163BESA+T from Maxim Integrated is a precision, low-dropout, micropower series voltage reference delivering a stable 3.000V output with ±5mV initial accuracy and 4–10ppm/°C temperature coefficient over -40°C to +85°C. It sources up to 5mA while drawing only 100–120μA quiescent current, features 50–200mV dropout at 1mA, and operates from VOUT + 0.2V to 12.6V input. It is used in high-accuracy ADC biasing and portable 3V systems where space and battery life are critical.
For engineers reviewing the MAX6163BESA+T datasheet, MAX6163BESA+T pinout, MAX6163BESA+T application, or MAX6163BESA+T equivalent, this page provides verified specifications, SO-8 package layout, real-world load/line regulation behavior (0.5–0.9mV/mA sourcing, 83–300µV/V line regulation), thermal hysteresis (125ppm), and validated alternative options for 3.0V reference designs.
Technical Context
The MAX6163BESA+T employs a proprietary curvature-correction circuit and laser-trimmed thin-film resistors to achieve tight initial accuracy and ultra-low drift. Its BiCMOS process enables internal compensation-eliminating need for external capacitors while maintaining stability with ≥1µF capacitive loads.
As a three-terminal series-mode reference, it draws supply current virtually independent of input voltage (ΔIIN/ΔVIN ≤ 8.0µA/V), unlike shunt-mode devices that waste current via external resistors. It supports both sourcing (0–5mA) and sinking (-2mA to 0) operation without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.000V ±5mV at +25°C - ensures precise 3V bias for 12-bit+ ADCs without calibration |
| Temp Coefficient | 4–10ppm/°C - guarantees <±0.24mV drift across -40°C to +85°C operating range |
| Dropout Voltage | 50–200mV at 1mA - enables operation from 3.1V supply, ideal for single-cell Li-ion or 3.3V LDO-fed systems |
| Quiescent Current | 100–120µA typical - extends battery life in portable instruments with multi-year runtime requirements |
| Load Regulation | 0.5–0.9mV/mA sourcing - maintains <±4.5mV error over full 0–5mA load, critical for varying sensor excitation |
| Line Regulation | 83–300µV/V - limits output shift to <0.3mV when input varies from 3.2V to 12.6V |
| Noise (0.1–10Hz) | 35µVp-p - low enough to avoid degrading ENOB in 16-bit SAR ADCs |
| Ripple Rejection | 76dB at 120Hz - suppresses AC ripple from switching supplies feeding the reference input |
Pinout & Package
MAX6163BESA+T is housed in an 8-pin SO (Small Outline) package, RoHS-compliant and lead-free. Pin 1, 3, 5, 7, and 8 are No Connect (N.C.), internally unconnected. The functional terminals are isolated to minimize parasitic coupling and simplify PCB layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 2) | Input Supply Terminal | Accepts 3.2V–12.6V; requires no external series resistor; tolerates short-circuit to GND continuously if VIN ≤ 6V |
| GND (Pin 4) | Reference Ground | Return path for load current and internal bias; must be low-impedance connection to system ground plane |
| OUT (Pin 6) | Precision Output Terminal | Delivers regulated 3.000V; stable with 0–1µF capacitive loads; no external capacitor required for stability |
Key Features
| Feature | Design Value |
|---|---|
| Initial Accuracy | ±5mV (±0.17%) - reduces system calibration burden in factory test and field trimming |
| Temperature Stability | 4–10ppm/°C - meets industrial-grade drift requirements without oven control or software compensation |
| No External Capacitor | Fully internally compensated - eliminates BOM item and board area, enabling ultra-compact sensor modules |
| Low Dropout | 50mV min at 1mA - allows direct use after low-headroom LDOs or single-cell batteries down to 3.1V |
| Supply-Independent Current | ΔIIN/ΔVIN ≤ 8.0µA/V - ensures predictable power budget across wide input range, simplifying battery modeling |
| High Output Drive | 5mA source / 2mA sink - drives multiple op-amp references or ADC reference inputs without buffer amplifiers |
Applications
| Portable DMM Front-End | Industrial 3V Data Acquisition |
|---|---|
|
Use Scenario: Handheld digital multimeter measuring DC voltage with 16-bit SAR ADC and auto-ranging. IC Role / Device Role / Timing Role: Primary 3.000V reference for ADC conversion and internal DAC calibration. Use Value: ±5mV initial accuracy and 10ppm/°C drift ensure <±0.02% measurement error across operating temperature without recalibration. |
Use Scenario: DIN-rail mounted PLC analog input module accepting 4–20mA and ±10V signals. IC Role / Device Role / Timing Role: Stable 3.000V reference for precision instrumentation amplifier gain-setting and ADC bias. Use Value: 5mA drive capability powers multiple signal chains; 76dB ripple rejection prevents switching noise from affecting measurement integrity. |
| Medical Patient Monitor Sensor Bias | Automotive Cabin Controller Reference |
|
Use Scenario: Battery-powered wearable ECG device using low-noise instrumentation amps and 16-bit ADC. IC Role / Device Role / Timing Role: Low-noise (35µVp-p) 3.0V reference for analog front-end biasing and ADC reference. Use Value: 100µA quiescent current extends coin-cell lifetime beyond 2 years; no external cap saves space in rigid-flex assembly. |
Use Scenario: Automotive HVAC control unit with microcontroller, touch interface, and temperature sensors. IC Role / Device Role / Timing Role: 3.0V reference for MCU ADC, EEPROM programming voltage, and sensor signal conditioning. Use Value: -40°C to +85°C guaranteed operation meets AEC-Q200 ambient requirements; 200mV max dropout supports cold-cranking scenarios. |
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, ±2mV initial accuracy, 50ppm/°C max, SOT-23-3, 50µA IQ, 150mV dropout | Lower accuracy and higher drift; smaller package but lower drive (25mA max) | Choose for ultra-low-power, space-constrained designs where ±0.07% accuracy suffices and load is <1mA |
| ADR3430ARJZ-R7 | 3.0V, ±2mV initial accuracy, 10ppm/°C max, SOT-23-5, 120µA IQ, 200mV dropout, requires 1µF output cap | Same accuracy/drift class but needs external capacitor; different pinout and enable logic | Choose when footprint compatibility with existing ADR34x designs exists and board area allows 1µF cap placement |
Compared with REF3030AIDBZR and ADR3430ARJZ-R7, MAX6163BESA+T offers superior initial accuracy tolerance (±5mV vs ±2mV) and significantly lower temperature coefficient (4–10ppm/°C vs 50ppm/°C or 10ppm/°C), while delivering higher output current (5mA) without requiring external stabilization components.
Availability
MAX6163BESA+T is available at Aetrix Electronics and suitable for portable medical devices, industrial data loggers, and automotive cabin controllers requiring stable component supply, long-term parametric consistency, and RoHS-compliant packaging.
Supply support for MAX6163BESA+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
Maxim Integrated, now part of Analog Devices, designs precision analog and mixed-signal ICs for demanding industrial, medical, and communications applications.
The MAX6161–MAX6168 family was engineered specifically for battery-powered and space-constrained systems needing high-accuracy, low-drift, low-quiescent-current voltage references without external compensation components.
FAQ
What is the guaranteed initial accuracy of MAX6163BESA+T over temperature?
The MAX6163BESA+T has a guaranteed initial accuracy of ±5mV (±0.17%) at +25°C, with total error over -40°C to +85°C including temperature coefficient (4–10ppm/°C), line/load regulation, and hysteresis remaining within ±8mV. This specification is production-tested and applies across the full extended temperature range without derating.
Does MAX6163BESA+T require an external output capacitor for stability?
No, MAX6163BESA+T is internally compensated and does not require an external output capacitor for stability. It remains stable with capacitive loads from 0 to 1µF. An optional 0.1µF ceramic capacitor may be added at the OUT pin to improve transient response during large load steps, but it is not necessary for basic operation.
What is the minimum input voltage needed for MAX6163BESA+T to regulate at full 5mA load?
At 5mA load, the MAX6163BESA+T requires a minimum input voltage of VOUT + dropout = 3.000V + 200mV = 3.200V (max dropout). In practice, design margin suggests using ≥3.3V input. The device is specified to maintain regulation down to VOUT + 0.2V across temperature and process variation, confirmed by the dropout voltage test condition in the datasheet.
Can MAX6163BESA+T sink current, and how much?
Yes, MAX6163BESA+T can sink up to 2mA of load current. When sinking current (e.g., driving an inverting op-amp reference or pulling down a comparator threshold), the output voltage changes by 1.8–5.0mV/mA, as specified in the Load Regulation parameter. This bidirectional capability enables flexible biasing topologies without additional active components.
How does the supply current of MAX6163BESA+T vary with input voltage?
The quiescent supply current of MAX6163BESA+T varies by ≤8.0µA/V across its input range (3.2V to 12.6V), meaning total change is under 75µA over full operation. At +25°C, typical IIN is 100–120µA regardless of VIN - a key advantage over shunt references whose current scales linearly with supply voltage and wastes power unnecessarily.
MAX6163BESA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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+T FAQ
1.How can I place an order for MAX6163BESA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6163BESA+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 MAX6163BESA+T reliable?
The price and inventory of MAX6163BESA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6163BESA+T is usually 5 days.
3.What payment methods are accepted for MAX6163BESA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6163BESA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6163BESA+T?
MAX6163BESA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6163BESA+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 MAX6163BESA+T?
For technical support, including MAX6163BESA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6163BESA+T requirements.
6.How does Aetrix verify that MAX6163BESA+T is sourced from the original manufacturer or authorized distributors?
All MAX6163BESA+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 MAX6163BESA+T meets industry standards.
7.What is the process for return or replacement of MAX6163BESA+T?
All MAX6163BESA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6163BESA+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 MAX6163BESA+T part is unused and in its original packaging.
Return procedure for MAX6163BESA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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