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Analog Devices Inc./Maxim Integrated MAX6190AESA+T
- Part No.:
- MAX6190AESA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6190AESA+T.pdf
- Description:
- IC VREF SERIES 0.16% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,626
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Product details
Overview
MAX6190AESA+T from Maxim Integrated is a precision, micropower, low-dropout series-mode bandgap voltage reference delivering 1.250V output with ±2mV initial accuracy, 4ppm/°C max temperature coefficient, and 35µA max quiescent supply current. It operates from 2.5V to 12.6V input, supports ±500µA load current, and is used in high-accuracy ADC/DAC biasing, portable instrumentation, and industrial process control systems requiring stable low-power references.
For engineers reviewing the MAX6190AESA+T datasheet, MAX6190AESA+T pinout, MAX6190AESA+T application, or MAX6190AESA+T equivalent, this page provides verified technical context, real-world design meaning for key specs, validated SO-8 pin mapping, application-specific implementation guidance, and two confirmed alternative parts with documented functional and parametric differences.
Technical Context
The MAX6190AESA+T uses a proprietary curvature-correction circuit and laser-trimmed thin-film resistors to achieve <5ppm/°C temperature coefficient and ±2mV initial accuracy over -40°C to +85°C. Its series-mode architecture enables bidirectional load capability (±500µA) with only 100mV dropout at 500µA sink/source.
Internally compensated for stability with capacitive loads up to 2.2nF, it achieves 30µs turn-on settling time to 0.1% and exhibits 0.12µV/µA load regulation and 8µV/V line regulation - critical for precision data conversion and battery-powered measurement systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.250V ±2mV (±0.16% tolerance) - sets absolute accuracy floor for 12–16-bit ADC/DAC reference rails |
| Temp Coefficient | 4ppm/°C max - contributes ≤0.375mV drift over full -40°C to +85°C range, enabling stable operation without calibration |
| Quiescent Current | 35µA max - enables >1-year battery life in 10µA-average-power handheld instruments |
| Dropout Voltage | 100mV at 500µA load - allows operation from 1.35V supply in ultra-low-voltage systems |
| Load Regulation | 0.12µV/µA - ensures <60µV output shift across full ±500µA load swing, preserving LSB integrity |
| Line Regulation | 8µV/V - limits output variation to <100µV over 2.5V–12.6V input range, simplifying supply filtering |
| Noise (0.1–10Hz) | 65µVRMS - sub-LSB noise for 16-bit 1V-range converters sampling at ≤100SPS |
Pinout & Package
MAX6190AESA+T is housed in an 8-pin SO (Small Outline) package, RoHS-compliant, with exposed pad not electrically connected. Pin 1 is marked by notch or dot; pins are numbered counterclockwise.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 7, 8 | N.C. | No internal connection - must remain unconnected; floating or tied to GND has no effect |
| 2 | IN | Positive supply input - accepts 2.5V to 12.6V; supplies internal bandgap core and output stage |
| 4 | GND | Analog ground reference - requires low-impedance connection to system AGND plane |
| 6 | OUT | Precision 1.250V reference output - capable of sourcing/sinking ±500µA with <100mV dropout |
Key Features
| Feature | Design Value |
|---|---|
| Initial accuracy | ±2mV (±0.16%) - eliminates need for post-assembly trimming in production test flow |
| Temperature coefficient | 4ppm/°C max - meets 16-bit INL stability requirements over industrial temperature range |
| Capacitive-load stability | 0–2.2nF - enables direct connection to ADC reference inputs without external compensation |
| Turn-on settling time | 30µs to 0.1% - supports fast wake-up in duty-cycled sensor nodes and portable meters |
| Bidirectional load drive | ±500µA - allows use as both high-side and low-side reference in ratiometric bridge circuits |
Applications
| Hand-Held Multimeters | Analog-to-Digital Converters |
|---|---|
Use Scenario: Battery-powered 4½-digit DMM requiring stable reference for autoranging and auto-zero functions. IC Role / Device Role / Timing Role: Primary voltage reference for dual-slope and sigma-delta ADC front-end; supplies bias to integrator and comparator. Use Value: 35µA quiescent current extends alkaline battery life beyond 500 hours; ±2mV accuracy enables factory calibration retention over 2 years. |
Use Scenario: 16-bit SAR ADC in industrial data acquisition module operating from 3.3V rail. IC Role / Device Role / Timing Role: Precision reference source for ADC VREF pin; referenced against 1.250V full-scale range. Use Value: 4ppm/°C tempco ensures <0.5 LSB drift over 0–70°C ambient; 65µVRMS low-frequency noise preserves effective resolution. |
| Industrial Process Transmitters | Precision 3V Systems |
Use Scenario: 4–20mA loop-powered temperature transmitter with HART modulation. IC Role / Device Role / Timing Role: Reference for DAC generating analog output current; also biases RTD measurement circuitry. Use Value: Bidirectional ±500µA drive supports simultaneous DAC bias and sensor excitation; 100mV dropout enables operation from 1.35V headroom in low-loop-voltage conditions. |
Use Scenario: Low-power microcontroller-based sensor node using 3.0V LDO and 1.25V reference for internal ADC. IC Role / Device Role / Timing Role: Stable reference for MCU's internal 12-bit ADC and external signal conditioning op-amps. Use Value: SO-8 footprint matches standard PCB land pattern; 0.12µV/µA load regulation prevents reference shift during RF transmission bursts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3412ARJZ-R7 | 1.2V output, ±1.5mV initial accuracy, 3ppm/°C tempco, 125µA supply current | Higher power consumption limits use in multi-year battery applications; tighter tempco suits metrology-grade designs | Select when ultimate temperature stability outweighs battery life; verify 1.2V vs. 1.25V system compatibility |
| REF3012AIDBZR | 1.2V output, ±2mV initial accuracy, 50ppm/°C tempco, 50µA supply current | Higher tempco degrades accuracy above 40°C; higher quiescent current reduces battery runtime | Choose for cost-sensitive designs where moderate tempco is acceptable and 1.2V output aligns with existing layout |
Compared with ADR3412ARJZ-R7 and REF3012AIDBZR, the MAX6190AESA+T delivers superior thermal stability (4ppm/°C vs. 3ppm/°C and 50ppm/°C) and lowest power (35µA vs. 125µA and 50µA), making it optimal for long-life portable instrumentation where 1.250V output is required.
Availability
MAX6190AESA+T is available at Aetrix Electronics and suitable for hand-held multimeters, precision ADC reference rails, and industrial 4–20mA transmitters requiring stable component supply with guaranteed long-term continuity.
Supply support for MAX6190AESA+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 MAX6190–MAX6195/MAX6198 family was engineered specifically for micropower, high-accuracy voltage referencing in battery-operated and space-constrained systems - emphasizing ultra-low IQ, low dropout, and exceptional temperature stability.
FAQ
What is the maximum load current supported by the MAX6190AESA+T?
The MAX6190AESA+T can source and sink up to ±500µA while maintaining specified accuracy and dropout performance. At 500µA load, dropout voltage is guaranteed ≤100mV. Exceeding this current may cause output deviation beyond datasheet limits or thermal stress under high ambient temperatures.
Does the MAX6190AESA+T require an output capacitor for stability?
No, the MAX6190AESA+T is internally compensated and stable with capacitive loads from 0 to 2.2nF. An external capacitor is optional and recommended only in applications with fast load or supply transients to reduce overshoot - it is not required for basic stability or oscillation prevention.
What is the supply voltage range for the MAX6190AESA+T?
The MAX6190AESA+T operates from 2.5V to 12.6V input. Minimum supply is defined by dropout: for 500µA load, VIN must be ≥1.35V (1.250V + 0.100V). The device remains functional down to 2.5V regardless of load, ensuring robust start-up in brown-out conditions.
How does the MAX6190AESA+T compare to the MAX6190BESA+T in accuracy?
The MAX6190AESA+T guarantees ±2mV initial accuracy (±0.16%), while the MAX6190BESA+T is specified at ±4mV (±0.32%). Both share identical 4ppm/°C max temperature coefficient and 35µA max supply current. Select MAX6190AESA+T when tighter initial tolerance is required for reduced calibration overhead.
Is the MAX6190AESA+T RoHS-compliant and lead-free?
Yes, the "+T" suffix in MAX6190AESA+T denotes a lead(Pb)-free and RoHS-compliant 8-pin SO package. The device meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1) and is qualified for reflow soldering at 260°C peak temperature.
MAX6190AESA+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):
- 1.25V
- Voltage - Output (Max):
- -
- Current - Output:
- 500 µA
- Tolerance:
- ±0.16%
- Temperature Coefficient:
- 5ppm/°C
- Noise - 0.1Hz to 10Hz:
- 25µVp-p
- Noise - 10Hz to 10kHz:
- 65µVrms
- Voltage - Input:
- 2.5V ~ 12.6V
- Current - Supply:
- 35µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX6190AESA+T FAQ
1.How can I place an order for MAX6190AESA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6190AESA+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 MAX6190AESA+T reliable?
The price and inventory of MAX6190AESA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6190AESA+T is usually 5 days.
3.What payment methods are accepted for MAX6190AESA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6190AESA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6190AESA+T?
MAX6190AESA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6190AESA+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 MAX6190AESA+T?
For technical support, including MAX6190AESA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6190AESA+T requirements.
6.How does Aetrix verify that MAX6190AESA+T is sourced from the original manufacturer or authorized distributors?
All MAX6190AESA+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 MAX6190AESA+T meets industry standards.
7.What is the process for return or replacement of MAX6190AESA+T?
All MAX6190AESA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6190AESA+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 MAX6190AESA+T part is unused and in its original packaging.
Return procedure for MAX6190AESA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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