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Analog Devices Inc./Maxim Integrated MAX6105EUR-T
- Part No.:
- MAX6105EUR-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX6105EUR-T.pdf
- Description:
- IC VREF SERIES 0.4% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,726
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Product details
Overview
The MAX6105EUR-T from Maxim Integrated is a 5.000V, low-dropout (LDO), micropower series-mode voltage reference in a 3-pin SOT23 package. It delivers ±0.4% initial accuracy, 75ppm/°C max temperature coefficient, and operates from −40°C to +85°C with only 90µA quiescent current. It sources up to 5mA and sinks 2mA, enabling precision analog sensing and ADC biasing in space-constrained portable systems.
For engineers reviewing the MAX6105EUR-T datasheet, MAX6105EUR-T pinout, MAX6105EUR-T application, or MAX6105EUR-T equivalent, this device is selected for battery-powered instrumentation requiring stable 5V reference with ultra-low supply current, minimal board area, and no external compensation capacitor.
Technical Context
The MAX6105EUR-T uses a proprietary curvature-correction circuit and laser-trimmed thin-film resistors to achieve low drift and high initial accuracy. Its series-mode architecture eliminates dependency on external bias resistors and enables supply current virtually independent of input voltage (4–8µA/V variation).
Internally compensated for stability with capacitive loads, it supports output capacitance from 0 to ≥1µF without oscillation. Dropout voltage is 50mV at 1mA load, and line regulation is 550µV/V max-critical for operation across varying battery voltages in portable designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000V ±0.4% (±20mV) - sets precise full-scale reference for 12-bit+ ADCs and DACs |
| Temp Coefficient | 75ppm/°C max - ensures ≤3.75mV drift over −40°C to +85°C operating range |
| Quiescent Current | 90µA typical - enables >1-year battery life in 10µA sleep-mode systems |
| Dropout Voltage | 50mV at 1mA - allows operation down to 5.05V input, compatible with single Li-ion cells under load |
| Load Regulation | 0.9mV/mA (source), 10mV/mA (sink) - maintains stability during dynamic sensor excitation |
| Noise (0.1–10Hz) | 60µVP-P - supports low-noise precision measurement without post-filtering |
| Supply Range | 5.2V to 12.6V - accommodates regulated 5.5V rails and higher-voltage industrial supplies |
Pinout & Package
MAX6105EUR-T is housed in a 3-pin SOT23-3 package (JEDEC MO-178AA), footprint-compatible with industry-standard SOT-23 layouts. Pin 1 = IN (input voltage), Pin 2 = OUT (5.000V reference output), Pin 3 = GND (ground reference). The device requires no external compensation capacitor and is stable with any load capacitance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input Supply Terminal | Accepts 5.2V–12.6V input; internal LDO regulation begins here; decoupling with 0.1µF ceramic recommended for transient immunity |
| 2 (OUT) | Reference Output | Provides stable 5.000V output; capable of sourcing 5mA or sinking 2mA; connects directly to ADC REF+, op-amp bias, or sensor excitation |
| 3 (GND) | Analog Ground Reference | Low-impedance return path for reference current; must be tied to clean system ground plane to avoid noise coupling into VREF |
Key Features
| Feature | Design Value |
|---|---|
| No external capacitor required | Internally compensated - eliminates 1–2 mm² PCB area and BOM cost per unit in high-volume portable designs |
| Ultra-low quiescent current | 90µA typical - reduces standby power by >95% vs. legacy bandgap references (e.g., LM4040) |
| Stable with capacitive loads | Operates reliably from 0 to ≥1µF - supports direct connection to noisy digital ICs without instability risk |
| Low dropout voltage | 50mV at 1mA - enables use with aging batteries or low-headroom regulators where VIN may dip near 5.05V |
| High output current capability | 5mA source / 2mA sink - drives multiple ADC references, op-amp inputs, or low-power sensors without buffering |
Applications
| Portable Data Acquisition | Handheld Test Equipment |
|---|---|
Use Scenario: Battery-powered multimeter measuring DC voltage with 16-bit SAR ADC. IC Role / Device Role / Timing Role: Provides 5.000V precision reference for ADC full-scale calibration and offset nulling. Use Value: ±0.4% initial accuracy and 75ppm/°C drift ensure <0.02% measurement error across operating temperature without recalibration. | Use Scenario: Portable oscilloscope front-end using dual 12-bit ADCs for simultaneous channel sampling. IC Role / Device Role / Timing Role: Supplies matched 5.000V reference to both ADCs to maintain channel-to-channel gain matching. Use Value: Low 60µVP-P noise and 0.9mV/mA load regulation prevent differential gain error during dynamic signal acquisition. |
| Wireless Sensor Node | Industrial Control Module |
Use Scenario: LoRaWAN node with integrated temperature/humidity sensor and 12-bit ADC. IC Role / Device Role / Timing Role: Powers sensor excitation circuitry and serves as ADC reference in ultra-low-power sleep/wake cycles. Use Value: 90µA quiescent current extends coin-cell battery life beyond 2 years; no output cap saves PCB area in 10mm × 10mm module. | Use Scenario: DIN-rail mounted PLC analog input module converting 4–20mA signals to digital. IC Role / Device Role / Timing Role: Generates isolated 5.000V reference for sigma-delta ADC after DC-DC conversion and isolation. Use Value: 5.2V–12.6V input range tolerates wide industrial supply variations; 50mV dropout ensures operation during brownout conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3450ARJZ-R7 | 5.0V output, ±0.1% initial accuracy, 10ppm/°C TC, 125µA IQ, SOT23-3 | Higher accuracy and lower drift, but 39% higher quiescent current and 2× cost | Select when metrology-grade stability is required and power budget allows >125µA continuous draw |
| REF3050AIDBZR | 5.0V output, ±0.2% initial accuracy, 50ppm/°C TC, 50µA IQ, SOT23-3 | Lower quiescent current, but limited 25mA max output and no sink capability | Select for ultra-low-power sensor biasing where load current never exceeds 25mA and sink function is unnecessary |
Compared with ADR3450ARJZ-R7, MAX6105EUR-T trades 0.3% initial accuracy and 65ppm/°C higher drift for 30µA lower IQ and 2mA sink capability-making it preferable in battery-operated systems driving mixed-signal loads. Against REF3050AIDBZR, it offers 2.5× higher output current and bidirectional drive at the cost of 40µA higher IQ.
Availability
MAX6105EUR-T is available at Aetrix Electronics and suitable for portable data acquisition, handheld test equipment, wireless sensor nodes, and industrial control modules requiring stable component supply with tight voltage reference performance.
Supply support for MAX6105EUR-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, mixed-signal, and power management ICs for demanding industrial, medical, and communications applications.
The MAX6100–MAX6107 family was engineered specifically for space- and power-constrained portable electronics needing accurate, low-drift, low-IQ voltage references without external components.
FAQ
What is the maximum input voltage rating for the MAX6105EUR-T?
The MAX6105EUR-T has an absolute maximum input voltage of +13.5V referenced to GND. However, its specified operating supply voltage range is 5.2V to 12.6V. Operation above 12.6V is not guaranteed and may impact long-term reliability or parametric performance. Always observe the 13.5V absolute maximum to prevent permanent damage.
Does the MAX6105EUR-T require an external output capacitor for stability?
No, the MAX6105EUR-T does not require an external output capacitor for stability. It is internally compensated and remains stable with any capacitive load-from 0 to ≥1µF. This eliminates board area and BOM cost, making it ideal for ultra-compact designs like wearable sensors and handheld meters where every mm² matters.
Can the MAX6105EUR-T sink current, and if so, how much?
Yes, the MAX6105EUR-T can sink up to 2mA of load current. This bidirectional capability allows it to actively pull down the reference node-useful for calibrating zero-scale points in ratiometric sensor interfaces or driving low-impedance loads that demand sink current during certain phases of operation.
What is the turn-on settling time specification for the MAX6105EUR-T?
The MAX6105EUR-T settles to within 0.1% of final value in 300µs (typical) when measured with COUT = 50pF. Turn-on time increases under worst-case conditions-up to 1.5ms at minimum dropout voltage and maximum load-but remains fully characterized and reliable across the −40°C to +85°C temperature range.
How does the MAX6105EUR-T compare to shunt-mode voltage references in terms of supply efficiency?
Unlike shunt-mode references that waste supply current through a series resistor-even when no load is present-the MAX6105EUR-T draws only 90µA quiescent current regardless of load state. Its supply current varies by just 4–8µA/V with input voltage, making it dramatically more efficient in battery-powered systems where energy conservation is critical.
MAX6105EUR-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 5 mA
- Tolerance:
- ±0.4%
- Temperature Coefficient:
- 75ppm/°C
- Noise - 0.1Hz to 10Hz:
- 60µVp-p
- Noise - 10Hz to 10kHz:
- 60µVrms
- Voltage - Input:
- 5.2V ~ 12.6V
- Current - Supply:
- 125µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
MAX6105EUR-T FAQ
1.How can I place an order for MAX6105EUR-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6105EUR-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 MAX6105EUR-T reliable?
The price and inventory of MAX6105EUR-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6105EUR-T is usually 5 days.
3.What payment methods are accepted for MAX6105EUR-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6105EUR-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6105EUR-T?
MAX6105EUR-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6105EUR-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 MAX6105EUR-T?
For technical support, including MAX6105EUR-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6105EUR-T requirements.
6.How does Aetrix verify that MAX6105EUR-T is sourced from the original manufacturer or authorized distributors?
All MAX6105EUR-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 MAX6105EUR-T meets industry standards.
7.What is the process for return or replacement of MAX6105EUR-T?
All MAX6105EUR-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6105EUR-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 MAX6105EUR-T part is unused and in its original packaging.
Return procedure for MAX6105EUR-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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