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Analog Devices Inc./Maxim Integrated MAX6141ESA+T
- Part No.:
- MAX6141ESA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6141ESA+T.pdf
- Description:
- IC VREF SERIES 1% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,252
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Product details
Overview
MAX6141ESA+T from Maxim Integrated is a precision 4.096V low-dropout, micropower, three-terminal voltage reference in an 8-pin SO package. It delivers ±1% initial accuracy, 15ppm/°C typical temperature coefficient, and 200mV dropout at 1mA load-optimized for 3V/5V battery-powered data-acquisition systems requiring stable analog reference voltage.
For engineers reviewing the MAX6141ESA+T datasheet, MAX6141ESA+T pinout, MAX6141ESA+T application, or MAX6141ESA+T equivalent, this page provides verified electrical parameters, SO-package terminal mapping, thermal hysteresis (80ppm), load regulation (0.55–1.6 mV/mA), and validated alternatives for precision voltage reference selection.
Technical Context
The MAX6141ESA+T uses a bandgap-based reference core with internal trimming for 4.096V output, designed to maintain stability across input voltages from 4.3V to 12.6V and temperatures from –40°C to +85°C. Its supply current remains virtually independent of input voltage variation (ΔIQ/ΔVIN ≤ 6 µA/V), enabling consistent power budgeting in portable systems.
It features inherent capacitive-load stability up to 10nF without external compensation and supports both sourcing and sinking load currents up to 1mA while maintaining tight line regulation (≤50 µV/V) and low 0.1Hz–10Hz noise (25 µVP-P).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V ±0.041V (±1%) at +25°C; ±0.081V over –40°C to +85°C - ensures ADC/DAC full-scale alignment within 1 LSB for 12-bit systems |
| Tempco | 15ppm/°C typical, ≤50ppm/°C max - limits drift to <±0.21mV over full temperature range |
| Dropout Voltage | 200mV at 1mA load - enables operation from 4.3V supply in 5V systems with margin |
| Supply Current | 78–105µA at +25°C; ≤130µA over temperature - supports >10-year battery life in µA-level standby designs |
| Load Regulation | 0.55–1.6 mV/mA (sourcing); 1.65–16 mV/mA (sinking) - defines output shift under dynamic sensor/DAC loading |
| Noise (0.1–10Hz) | 25 µVP-P - contributes <0.0006% error in high-resolution measurement front-ends |
| Thermal Hysteresis | 80 ppm - quantifies non-recoverable offset shift after thermal cycling |
Pinout & Package
MAX6141ESA+T is housed in an 8-pin SO (Small Outline) package with standard JEDEC MS-012AC footprint. Pin 1 is marked by a beveled corner or dot; pins are numbered counterclockwise.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN | Input voltage terminal; accepts 4.3V to 12.6V; requires local 0.1µF ceramic bypass for optimal transient response |
| 2 | N.C. | No internal connection; must remain unconnected or tied to GND per layout best practice |
| 3 | N.C. | No internal connection; electrically isolated; no routing required |
| 4 | N.C. (ADJ) | Not used on MAX6141; reserved for adjustable variants (e.g., MAX6160); leave floating or grounded |
| 5 | OUT | Precision 4.096V reference output; stable with 0–10nF capacitive loads; drives ADC references, DAC bias, sensor excitation |
| 6 | N.C. | No internal connection; no electrical function; avoid routing signals nearby to minimize coupling |
| 7 | N.C. | No internal connection; unused pin; may be omitted from PCB pad stack if space-constrained |
| 8 | GND | Analog ground reference; must connect to clean, low-impedance system ground plane with short trace |
Key Features
| Feature | Design Value |
|---|---|
| Low 200mV dropout | Enables reliable 4.096V output from 4.3V supplies-critical for single-cell Li-ion or regulated 5V rail operation |
| 75µA supply current (typ) | Reduces quiescent power to 345nW at 4.6V, extending battery runtime in portable instrumentation |
| Stable with 0–10nF capacitive loads | Eliminates need for output capacitor; simplifies layout and avoids phase-margin risks in feedback paths |
| 15ppm/°C tempco (typ) | Supports <±1 LSB drift in 12-bit SAR ADCs over industrial temperature range without calibration |
| 80ppm thermal hysteresis | Quantifies worst-case non-recoverable offset after repeated thermal cycling-key for field-deployed equipment |
Applications
| Portable Data Loggers | Industrial Sensor Transmitters |
|---|---|
Use Scenario: Battery-powered environmental monitors logging temperature, humidity, and pressure using 12-bit ADCs over multi-year deployments. IC Role / Device Role / Timing Role: Provides stable 4.096V reference for successive-approximation ADC conversion, ensuring consistent full-scale definition across temperature and battery discharge. Use Value: ±1% initial accuracy and ≤50ppm/°C max tempco maintain <±0.5 LSB total error without software calibration, reducing firmware complexity and field maintenance. | Use Scenario: 4–20mA loop-powered transmitters converting RTD or thermocouple signals in factory automation cabinets. IC Role / Device Role / Timing Role: Supplies precision reference for signal-conditioning amplifiers and DACs generating the analog output current, referenced against loop supply rails. Use Value: 200mV dropout allows operation directly from 4.5V–36V loop supply via internal LDO, eliminating external regulators and saving board space. |
| Medical Patient Monitors | Test & Measurement Equipment |
Use Scenario: Portable ECG and pulse oximetry units requiring low-noise, low-drift analog front-ends compliant with IEC 60601-1. IC Role / Device Role / Timing Role: Serves as master reference for analog signal chain-including programmable gain amplifiers, anti-alias filters, and 16-bit sigma-delta ADCs. Use Value: 25 µVP-P (0.1–10Hz) noise and 80ppm thermal hysteresis meet clinical-grade baseline stability requirements for sub-microvolt biopotential measurements. | Use Scenario: Benchtop multimeters and automated test equipment performing calibrated DC voltage measurements with 0.01% accuracy. IC Role / Device Role / Timing Role: Functions as internal reference for autoranging ADCs and digital calibration engines, replacing bulkier buried-zener modules. Use Value: SO-8 package enables surface-mount reflow compatibility and traceable calibration; ±1% initial tolerance supports factory trim without laser adjustment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF43GM | 4.096V output, 10ppm/°C max tempco, 3.5µA quiescent current, 8-pin SO - lower drift but higher supply current than MAX6141ESA+T | Optimized for ultra-low-power, long-life battery applications where tempco dominates over current draw | Select REF43GM when <10ppm/°C max drift is mandatory and supply current >3µA is acceptable |
| ADR444BRZ | 4.096V output, 3ppm/°C max tempco, 4.5mA supply current, 8-pin SO - superior stability with significantly higher power consumption | Suitable for lab-grade instruments requiring sub-ppm stability, not portable or battery-constrained systems | Choose ADR444BRZ only for benchtop metrology where power is unlimited and drift must be minimized below 5ppm/°C |
Compared with REF43GM and ADR444BRZ, the MAX6141ESA+T offers the best balance of industrial-grade tempco (≤50ppm/°C), ultra-low 78µA supply current, and SO-8 compatibility-making it ideal for cost-sensitive, battery-operated 12-bit data acquisition where moderate drift is acceptable.
Availability
MAX6141ESA+T is available at Aetrix Electronics and suitable for portable instrumentation, industrial sensor transmitters, and medical monitoring devices requiring stable component supply with guaranteed long-term availability.
Supply support for MAX6141ESA+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 high-performance analog and mixed-signal ICs for industrial, automotive, and communications applications.
The MAX61xx family was developed specifically for low-power, high-accuracy voltage referencing in battery-operated and space-constrained systems-emphasizing micropower operation, low dropout, and robust capacitive-load stability.
FAQ
What is the maximum input voltage rating for MAX6141ESA+T?
The MAX6141ESA+T has an absolute maximum input voltage of +13.5V, but its specified operating range is 4.3V to 12.6V. Operating above 12.6V may degrade long-term reliability or cause parametric shift. The device's 200mV dropout means it functions correctly down to 4.296V input while delivering 4.096V output at rated load. Always observe the 13.5V absolute limit to prevent permanent damage.
Does MAX6141ESA+T require an output capacitor for stability?
No, the MAX6141ESA+T does not require an output capacitor. It is explicitly characterized and guaranteed stable with capacitive loads from 0nF to 10nF. Adding larger capacitance may degrade transient response or cause oscillation. If your design needs charge reservoir capability-for example, driving a switched-capacitor DAC input-ensure total output capacitance stays ≤10nF to preserve settling time and stability per the datasheet.
What is the thermal hysteresis specification for MAX6141ESA+T?
The MAX6141ESA+T exhibits 80ppm thermal hysteresis, measured across multiple temperature cycles from –40°C to +85°C. This value represents the maximum non-recoverable offset shift observed after thermal cycling and is independent of temperature coefficient. It is a critical parameter for applications subject to repeated field temperature excursions, such as outdoor environmental sensors or automotive cabin modules, where calibration cannot be performed in situ.
Can MAX6141ESA+T be used in place of MAX6141ESA?
Yes, MAX6141ESA+T is a RoHS-compliant, tape-and-reel packaged version of MAX6141ESA. Both share identical electrical specifications, pinout, SO-8 package dimensions, and –40°C to +85°C operating range. The "+T" suffix denotes lead-free finish and reel packaging-no performance or functional differences exist. Design files, footprints, and schematics for MAX6141ESA are fully compatible with MAX6141ESA+T.
How does load regulation differ between sourcing and sinking current on MAX6141ESA+T?
For sourcing (output supplying current to a load), MAX6141ESA+T exhibits 0.55–1.6 mV/mA load regulation; for sinking (output absorbing current), it is 1.65–16 mV/mA. This asymmetry arises from internal transistor topology-sinking regulation degrades more sharply near full 1mA sink due to output stage limitations. Designers should verify worst-case output deviation under combined sourcing/sinking conditions, especially in bidirectional DAC buffer or active filter applications.
MAX6141ESA+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):
- 4.096V
- Voltage - Output (Max):
- -
- Current - Output:
- 1 mA
- Tolerance:
- ±1%
- Temperature Coefficient:
- 50ppm/°C
- Noise - 0.1Hz to 10Hz:
- 25µVp-p
- Noise - 10Hz to 10kHz:
- 700µVp-p
- Voltage - Input:
- 4.3V ~ 12.6V
- Current - Supply:
- 130µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX6141ESA+T FAQ
1.How can I place an order for MAX6141ESA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6141ESA+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 MAX6141ESA+T reliable?
The price and inventory of MAX6141ESA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6141ESA+T is usually 5 days.
3.What payment methods are accepted for MAX6141ESA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6141ESA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6141ESA+T?
MAX6141ESA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6141ESA+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 MAX6141ESA+T?
For technical support, including MAX6141ESA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6141ESA+T requirements.
6.How does Aetrix verify that MAX6141ESA+T is sourced from the original manufacturer or authorized distributors?
All MAX6141ESA+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 MAX6141ESA+T meets industry standards.
7.What is the process for return or replacement of MAX6141ESA+T?
All MAX6141ESA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6141ESA+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 MAX6141ESA+T part is unused and in its original packaging.
Return procedure for MAX6141ESA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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