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Analog Devices Inc./Maxim Integrated MAX6177BASA
- Part No.:
- MAX6177BASA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6177BASA.pdf
- Description:
- VOLTAGE REFERENCE
- Quantity:
- Payment:
- Shipping:
Inventory:1,400
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Product details
Overview
MAX6177BASA from Maxim Integrated is a high-precision, low-noise voltage reference with integrated temperature sensor output, delivering a factory-trimmed +3.3V reference (±0.10% initial accuracy), 10ppm/°C max temperature coefficient over –40°C to +125°C, and 5µVP-P (0.1Hz–10Hz) noise - enabling high-resolution ADC/DAC biasing in automotive and industrial instrumentation.
For engineers reviewing the MAX6177BASA datasheet, MAX6177BASA pinout, MAX6177BASA application, or MAX6177BASA equivalent, this page delivers verified electrical specs, thermal transducer behavior, TRIM interface operation, stability under capacitive loads up to 100µF, and automotive-grade (-40°C to +125°C) performance without external bypass capacitors.
Technical Context
The MAX6177BASA employs bandgap-based architecture with proprietary curvature-correction circuitry and laser-trimmed thin-film resistors to achieve 10ppm/°C max TCVOUT and ±0.10% initial output voltage accuracy across its full automotive temperature range. Its TEMP pin provides a linear 2.1mV/°C output referenced to die temperature, calibrated at 630mV at +25°C ambient.
It supports active trimming via a resistive divider between OUT–TRIM–GND, enabling ±6% output adjustment; quiescent supply current remains ≤650µA across –40°C to +125°C while sourcing up to 30mA or sinking 2mA load current - all without requiring output capacitance for stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | +3.300V nominal, ±0.10% initial tolerance (3.2967V to 3.3033V at +25°C) |
| Tempco (TCVOUT) | 10ppm/°C max over –40°C to +125°C - ensures ≤±0.42mV drift across full automotive range |
| Noise (0.1Hz–10Hz) | 5µVP-P typical - supports 16-bit+ ADCs without added filtering |
| Supply Current | ≤650µA max over –40°C to +125°C - enables low-power battery-backed systems |
| TEMP Output | 630mV at +25°C, 2.1mV/°C slope - direct die-temperature sensing without calibration |
| Load Drive | Sources 30mA / sinks 2mA - drives ADC references, op-amp bias networks, and comparator thresholds directly |
| Input Voltage Range | +5.3V to +40V - accommodates wide-input industrial rails and unregulated automotive supplies |
Pinout & Package
MAX6177BASA is housed in an 8-pin SO (Small Outline) package (package code S8+2, outline 21-0041), RoHS-compliant and qualified for automotive use (–40°C to +125°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8 | I.C. | Internally connected - must remain unconnected on PCB |
| 2 | IN | Positive power input (5.3V to 40V); requires 0.1µF ceramic bypass near pin |
| 3 | TEMP | Temperature-proportional analog output (630mV @ +25°C, 2.1mV/°C) |
| 4 | GND | Analog ground reference - connect to clean system ground plane |
| 5 | TRIM | Voltage-adjust input; connect to center tap of resistor divider (OUT–TRIM–GND) for ±6% output tuning |
| 6 | OUT | +3.3V precision reference output; stable with 0–100µF capacitive loads |
| 7 | N.C. | No internal connection - leave unconnected |
Key Features
| Feature | Design Value |
|---|---|
| Integrated temperature sensor | Linear TEMP output (2.1mV/°C) enables on-chip die-temperature monitoring without external sensors |
| Trim-capable reference | TRIM pin accepts resistive divider to adjust output ±6% - eliminates need for external DAC or calibration circuitry |
| No output capacitor required | Stable with 0–100µF capacitive loads - reduces BOM count and board area in space-constrained modules |
| Automotive-grade operation | Specified and tested over –40°C to +125°C ambient - suitable for engine control, ADAS, and under-hood electronics |
| Short-circuit protection | 60mA sink limit to GND / 3mA sink limit to IN - prevents latch-up and damage during fault conditions |
Applications
| Industrial Data Acquisition | Automotive Engine Control Unit (ECU) |
|---|---|
|
Use Scenario: High-accuracy 16-bit SAR ADC front-end in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Primary voltage reference for ADC conversion and sensor signal conditioning. Use Value: 10ppm/°C tempco and 5µVP-P noise ensure <1 LSB error over –40°C to +85°C operating range without recalibration. |
Use Scenario: Reference and temperature monitoring in diesel ECU fuel injection timing circuits. IC Role / Device Role / Timing Role: Dual-role device providing +3.3V reference for microcontroller I/O and die temperature feedback for thermal derating. Use Value: Single-component solution replaces discrete reference + NTC thermistor, reducing component count and calibration complexity. |
| Portable Test Equipment | Medical Patient Monitor Analog Front-End |
|
Use Scenario: Battery-powered handheld multimeter requiring stable reference across varying ambient temperatures. IC Role / Device Role / Timing Role: Low-quiescent-current (+3.3V) reference powering precision op-amps and ADCs in measurement path. Use Value: 650µA max supply current extends battery life; no output cap requirement saves PCB real estate in compact enclosure. |
Use Scenario: Isolated ECG amplifier stage requiring ultra-low-noise, medically rated reference voltage. IC Role / Device Role / Timing Role: Primary reference for 24-bit delta-sigma ADC and analog signal chain biasing. Use Value: 5µVP-P (0.1Hz–10Hz) noise meets IEC 60601-1 low-frequency interference requirements for diagnostic-grade biosignal acquisition. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6177AASA+ | 0.06% initial accuracy (vs. 0.10%), 3ppm/°C max tempco (vs. 10ppm/°C) | Better suited for 18-bit+ data converters where long-term stability and minimal drift dominate cost sensitivity | Select MAX6177AASA+ when highest accuracy is mandatory and budget allows premium grade |
| REF5033IDR | 3ppm/°C max tempco, 0.05% initial accuracy, 3.8µVP-P noise, but only 10mA source capability (vs. 30mA) | Requires external buffer for high-current loads; lacks integrated TEMP output | Choose REF5033IDR if TEMP functionality is unnecessary and lower noise is critical for metrology-grade instruments |
Compared with MAX6177AASA+ and REF5033IDR, MAX6177BASA offers the optimal balance of automotive qualification, integrated temperature sensing, robust 30mA drive, and cost-effective 0.10% accuracy - making it ideal for ECU, industrial PLC, and portable test equipment where dual functionality and reliability outweigh marginal accuracy gains.
Availability
MAX6177BASA is available at Aetrix Electronics and suitable for industrial data acquisition, automotive engine control units, and portable test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6177BASA 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 demanding industrial, automotive, and medical applications.
The MAX6177BASA belongs to the MAX6173–MAX6177 family of high-precision voltage references with integrated temperature sensors - engineered specifically for applications needing simultaneous accurate reference voltage and on-die thermal monitoring in harsh environments.
FAQ
What is the guaranteed initial accuracy of the MAX6177BASA over temperature?
The MAX6177BASA guarantees ±0.10% initial output voltage accuracy at +25°C, with output voltage specified between 3.2967V and 3.3033V under no-load conditions. This tolerance holds across the full –40°C to +125°C operating range per datasheet Electrical Characteristics table for MAX6177BASA.
Does the MAX6177BASA require an output bypass capacitor for stability?
No - the MAX6177BASA is internally compensated and stable with 0–100µF capacitive loads on the OUT pin. Unlike many references, it does not require an external output capacitor, simplifying layout and reducing bill-of-materials in space-constrained designs.
How is the TEMP output of the MAX6177BASA calibrated and what is its practical use?
The TEMP pin outputs 630mV at +25°C with a linear 2.1mV/°C slope, directly proportional to die temperature. It enables real-time thermal monitoring without external sensors - used for thermal derating in ECUs, self-test diagnostics, or ambient-compensated reference correction in precision instruments.
Can the output voltage of the MAX6177BASA be adjusted, and how?
Yes - the MAX6177BASA features a TRIM pin that accepts a resistive divider between OUT and GND. Adjusting the TRIM voltage changes the output by ±6% around the nominal +3.3V, enabling fine-tuning without external DACs or calibration firmware.
What is the maximum supply voltage and quiescent current of the MAX6177BASA?
The MAX6177BASA operates from +5.3V to +40V input voltage and draws ≤650µA quiescent supply current across its full –40°C to +125°C temperature range - supporting wide-input industrial rails and low-power battery operation.
MAX6177BASA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 30 mA
- Tolerance:
- ±0.1%
- Temperature Coefficient:
- 10ppm/°C
- Noise - 0.1Hz to 10Hz:
- 5µVp-p
- Noise - 10Hz to 10kHz:
- 9.3µVrms
- Voltage - Input:
- 5.3V ~ 40V
- Current - Supply:
- 650µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX6177BASA FAQ
1.How can I place an order for MAX6177BASA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6177BASA 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 MAX6177BASA reliable?
The price and inventory of MAX6177BASA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6177BASA is usually 5 days.
3.What payment methods are accepted for MAX6177BASA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6177BASA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6177BASA?
MAX6177BASA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6177BASA 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 MAX6177BASA?
For technical support, including MAX6177BASA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6177BASA requirements.
6.How does Aetrix verify that MAX6177BASA is sourced from the original manufacturer or authorized distributors?
All MAX6177BASA 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 MAX6177BASA meets industry standards.
7.What is the process for return or replacement of MAX6177BASA?
All MAX6177BASA units undergo pre-shipment inspection (PSI). If there is an issue with MAX6177BASA, 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 MAX6177BASA part is unused and in its original packaging.
Return procedure for MAX6177BASA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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