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Analog Devices Inc./Maxim Integrated MAX6341ESA+
- Part No.:
- MAX6341ESA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6341ESA+.pdf
- Description:
- IC VREF SERIES 0.02% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,025
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Product details
Overview
MAX6341ESA+ from Maxim Integrated is a precision 4.096V voltage reference IC using buried-zener technology, delivering ±0.02% initial accuracy, 0.75ppm/°C typical temperature coefficient (1.5ppm/°C max), and 2.4µVp-p (0.1Hz–10Hz) output noise. It supports ±15mA source/sink current and operates from 8V to 36V input, targeting high-resolution ADC/DAC biasing in test equipment and industrial control systems.
For engineers reviewing the MAX6341ESA+ datasheet, MAX6341ESA+ pinout, MAX6341ESA+ application, or MAX6341ESA+ equivalent, key selection criteria include its 4.096V nominal output, SO-8 package compatibility, low-noise performance under capacitive loads up to 100µF, and external trim capability for system-level calibration.
Technical Context
The MAX6341ESA+ employs a buried-zener core with proprietary low-power temperature compensation, achieving near-zero curvature over –40°C to +85°C. Its output stage is designed for stability with any capacitive load (0–100µF) and maintains <5µs turn-on settling to ±0.01%.
It features dedicated NR and TRIM pins: NR accepts a 1µF capacitor to reduce wideband noise by >20dB above 10Hz; TRIM enables ±24mV adjustment (±0.59%) via external potentiometer without degrading tempco or long-term drift.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V ±0.02% (±0.82mV) - ensures 16-bit DAC/ADC full-scale accuracy without post-calibration |
| Tempco (max) | 1.5ppm/°C - limits drift to ≤0.52mV over –40°C to +85°C ambient range |
| Noise (0.1–10Hz) | 2.4µVp-p - contributes <0.0004 LSB error in 16-bit 4.096V systems |
| Load Regulation | 7ppm/mA - holds output within ±0.029mV across full ±15mA sourcing/sinking range |
| Line Regulation | 10ppm/V - rejects input ripple up to 36V with <0.041mV variation per volt change |
| Long-Term Stability | 30ppm/1000hr - guarantees ≤0.124mV output shift over first 42 days of operation |
| Supply Current | 2.9mA (typ) - enables low-power portable instrumentation designs |
Pinout & Package
MAX6341ESA+ is housed in an 8-pin SO (Small Outline) package, RoHS-compliant, with 1.27mm pitch and standard JEDEC MS-012AC footprint. Pin 1 is marked by notch or dot; pins 1, 7, and 8 are internally connected and must remain unconnected on PCB.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 2) | Positive supply input | Accepts 8V–36V unregulated DC; internal regulation isolates output from input ripple |
| GND (Pin 4) | Analog ground reference | Must be star-connected to minimize ground bounce affecting reference accuracy |
| NR (Pin 3) | Noise reduction node | Connects to 1µF capacitor for ≥20dB wideband noise suppression; open if unused |
| OUT (Pin 6) | Precision reference output | Delivers 4.096V with <18mΩ output impedance at 10kHz; stable with 0–100µF capacitive loads |
| TRIM (Pin 5) | External voltage adjust input | Accepts 0–VOUT voltage to fine-tune output ±24mV (±0.59%) without tempco penalty |
Key Features
| Feature | Design Value |
|---|---|
| Buried-zener core | Enables 0.75ppm/°C typical tempco and 30ppm/1000hr long-term stability-lab-grade performance without oven control |
| Capacitive-load immunity | Stable with 0–100µF output capacitance-eliminates need for isolation resistors in noisy digital systems |
| Trim-adjustable output | ±24mV range via external potentiometer-enables system-level calibration without trimming internal laser fuses |
| Low-noise NR pin | 1µF capacitor reduces 0.1–10Hz noise by 50%-critical for sub-LSB integrity in 16-bit data converters |
| High transient immunity | Settles to ±0.01% in 8µs after load step; <500µV glitch during ±10mA sourcing/sinking-preserves signal integrity during dynamic conversion cycles |
Applications
| High-Resolution Data Acquisition | Digital Voltmeters (DVMs) |
|---|---|
Use Scenario: 16-bit SAR ADC sampling sensor signals in automated test equipment with 10ksps throughput. IC Role / Device Role / Timing Role: Provides stable 4.096V reference for ADC full-scale calibration and ratiometric measurement against sensor excitation. Use Value: 2.4µVp-p noise and 1.5ppm/°C tempco ensure <0.001% measurement repeatability across thermal cycles and line voltage variations. |
Use Scenario: Portable handheld DVM measuring DC voltages from 100mV to 10V with 0.005% basic accuracy. IC Role / Device Role / Timing Role: Serves as primary reference for dual-slope integrator and auto-zero amplifier stages. Use Value: ±0.02% initial accuracy and 30ppm/1000hr stability enable factory calibration validity for 12 months without recalibration. |
| Industrial Process Controllers | ATE Equipment Reference Subsystem |
Use Scenario: PLC analog I/O module converting 4–20mA loop signals to digital with isolated 16-bit resolution. IC Role / Device Role / Timing Role: Supplies reference for both current-to-voltage conversion and ADC reference-ensuring ratiometric consistency. Use Value: ±15mA sink/source capability allows direct driving of op-amp feedback networks; 8V–36V input range matches industrial 24V rail. |
Use Scenario: Modular ATE slot card generating multiple precision references (2.5V, 4.096V, 5V) for mixed-signal DUT testing. IC Role / Device Role / Timing Role: One of three parallel references (MAX6325/MAX6341/MAX6350) sharing common IN/NR/GND layout for crosstalk-free operation. Use Value: Industry-standard SO-8 pinout and identical footprint allow drop-in substitution across voltage variants-reducing BOM count and layout iterations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5040IDR | 4.096V output, 3ppm/°C max tempco, 3.8µVp-p noise, 10mA max output | Higher noise and tempco; requires external buffer for >10mA loads | Choose when cost sensitivity outweighs 16-bit noise requirements and load current stays ≤10mA |
| ADR444BRZ | 4.096V output, 1.5ppm/°C max tempco, 1.75µVp-p noise, ±10mA output | Lower noise but limited ±10mA drive; no NR pin for active noise filtering | Choose when ultra-low noise is critical and load current remains ≤10mA; omit NR-based noise reduction |
Compared with REF5040IDR and ADR444BRZ, MAX6341ESA+ uniquely combines 1.5ppm/°C max tempco, 2.4µVp-p noise, ±15mA drive, and integrated NR pin-making it optimal for space-constrained, high-dynamic-range 16-bit systems requiring full-swing load capability and configurable noise suppression.
Availability
MAX6341ESA+ is available at Aetrix Electronics and suitable for high-resolution data acquisition, digital voltmeters, and industrial process controllers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6341ESA+ 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 test equipment applications.
The MAX63xx family targets high-accuracy instrumentation where laboratory-grade voltage stability, low noise, and robust load drive are mandatory-specifically engineered for 16-bit+ data converter reference subsystems.
FAQ
What is the maximum input voltage rating for MAX6341ESA+?
The absolute maximum input voltage (IN pin) for MAX6341ESA+ is 40V. However, the recommended operating range is 8V to 36V per the datasheet's Electrical Characteristics table. Operation above 36V risks exceeding safe power dissipation limits in the SO-8 package, especially at elevated ambient temperatures.
Can MAX6341ESA+ drive a 10µF output capacitor without instability?
Yes, MAX6341ESA+ is explicitly characterized for stability with capacitive loads from 0µF to 100µF across its full operating temperature range and load current (±15mA). No series resistance or isolation components are required-this is confirmed in the "Bypassing" section and Typical Operating Characteristics plots.
Does the TRIM pin affect temperature coefficient performance?
No, the TRIM pin does not degrade temperature coefficient. As stated in the "Detailed Description", external trimming "does not affect temperature stability". The ±24mV adjustment range (±0.59%) is implemented via a high-impedance path that preserves the buried-zener core's inherent tempco of 0.75ppm/°C typical.
What is the typical turn-on settling time for MAX6341ESA+?
The typical turn-on settling time for MAX6341ESA+ is 8µs to within ±0.01% of final output voltage, measured from VIN reaching regulation. This value is specified in the MAX6341 Electrical Characteristics table under "Turn-On Settling Time" and verified across –40°C to +85°C.
Is MAX6341ESA+ pin-compatible with other members of the MAX63xx family?
Yes, MAX6341ESA+, MAX6325ESA+, and MAX6350ESA+ share identical 8-pin SO package footprints and pin functions (IN, GND, NR, OUT, TRIM, etc.). The only differences are output voltage (2.5V/4.096V/5V) and minor electrical specs-enabling one PCB layout to support all three variants.
MAX6341ESA+ 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, Buried Zener
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 4.096V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±0.02%
- Temperature Coefficient:
- 1.5ppm/°C
- Noise - 0.1Hz to 10Hz:
- 2.4µVp-p
- Noise - 10Hz to 10kHz:
- 2µVrms
- Voltage - Input:
- 8V ~ 36V
- Current - Supply:
- 3.2mA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX6341ESA+ FAQ
1.How can I place an order for MAX6341ESA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6341ESA+ 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 MAX6341ESA+ reliable?
The price and inventory of MAX6341ESA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6341ESA+ is usually 5 days.
3.What payment methods are accepted for MAX6341ESA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6341ESA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6341ESA+?
MAX6341ESA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6341ESA+ 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 MAX6341ESA+?
For technical support, including MAX6341ESA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6341ESA+ requirements.
6.How does Aetrix verify that MAX6341ESA+ is sourced from the original manufacturer or authorized distributors?
All MAX6341ESA+ 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 MAX6341ESA+ meets industry standards.
7.What is the process for return or replacement of MAX6341ESA+?
All MAX6341ESA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6341ESA+, 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 MAX6341ESA+ part is unused and in its original packaging.
Return procedure for MAX6341ESA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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