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Analog Devices Inc./Maxim Integrated MAX6198AESA+T
- Part No.:
- MAX6198AESA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6198AESA+T.pdf
- Description:
- IC VREF SERIES 0.05% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,261
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Product details
Overview
MAX6198AESA+T from Maxim Integrated is a precision, micropower, low-dropout series-mode bandgap voltage reference delivering 4.096V output with ±2mV initial accuracy, 5ppm/°C max temperature coefficient, and 35µA max quiescent current - ideal for high-accuracy ADC/DAC biasing in battery-powered instrumentation.
For engineers reviewing the MAX6198AESA+T datasheet, MAX6198AESA+T pinout, MAX6198AESA+T application, or MAX6198AESA+T equivalent, this page provides verified specifications, SO-8 package details, load-regulation behavior at 500µA, dropout performance down to 100mV, and real-world alternatives for precision analog systems requiring stable 4.096V references.
Technical Context
The MAX6198AESA+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. It operates as a series-mode reference capable of sourcing and sinking up to ±500µA.
Internally compensated for stability with capacitive loads up to 2.2nF, it achieves 160µs turn-on settling time to 0.1% and maintains 0.15µV/µA load regulation - critical for high-resolution data acquisition where supply and load transients must not perturb reference integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V ±2mV (±0.049% tolerance) - enables direct interface with 12-bit SAR ADCs without gain calibration. |
| Temp Coefficient | ≤5ppm/°C (max) - ensures ≤0.25mV drift over full -40°C to +85°C range, supporting industrial-grade measurement stability. |
| Quiescent Current | ≤35µA - allows >10-year battery life in 10µA-sleep-cycle portable instruments. |
| Dropout Voltage | 100mV at 500µA load - supports operation from 4.196V supply, compatible with single-cell LiFePO₄ or regulated 4.2V rails. |
| Load Regulation | 0.15µV/µA - guarantees <75µV output shift across full ±500µA load swing, preserving LSB integrity in 16-bit systems. |
| Line Regulation | 25µV/V - limits output variation to <250µV over 4.2V–12.6V input range, simplifying upstream supply design. |
| Noise (0.1–10Hz) | 100µVP-P - contributes <0.025 LSB error in 4.096V-referenced 16-bit converter (LSB = 62.5µV). |
Pinout & Package
MAX6198AESA+T is housed in an 8-pin SO (Small Outline) package, RoHS-compliant and rated for -40°C to +85°C operation. Pin 1 is marked with a beveled corner or dot; pins 1, 3, 5, 7, and 8 are No Connect (N.C.) and must remain unconnected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 7, 8 | No Connection (N.C.) | Not internally bonded - floating; no routing or soldering required. |
| 2 | IN | Supply input (VIN ≥ VOUT + 0.2V); accepts 4.296V–12.6V for guaranteed 4.096V output. |
| 4 | GND | Analog ground reference; requires low-impedance connection to system AGND plane. |
| 6 | OUT | Precision 4.096V reference output; stable with 0–2.2nF capacitive load; drives ±500µA. |
Key Features
| Feature | Design Value |
|---|---|
| Laser-trimmed thin-film resistors | Enables ±2mV initial accuracy and <5ppm/°C tempco without external calibration. |
| Curvature-correction circuit | Compensates second-order thermal effects, reducing parabolic drift across temperature. |
| Internal compensation | Eliminates need for external compensation components; stable with 0–2.2nF output capacitance. |
| Source/sink capability | ±500µA drive strength supports direct buffering of multiple ADC references or op-amp bias networks. |
| Low line/load regulation | 25µV/V and 0.15µV/µA minimize output dependency on supply ripple and dynamic load changes. |
Applications
| Hand-Held Multimeters | Analog-to-Digital Converters |
|---|---|
Use Scenario: Portable 4½-digit DMM requiring stable 4.096V reference for 16-bit sigma-delta ADC front-end. IC Role / Device Role / Timing Role: Primary voltage reference establishing full-scale input range for precision digitization. Use Value: ±2mV initial accuracy and 5ppm/°C tempco ensure <0.01% measurement repeatability across field operating temperatures. |
Use Scenario: Isolated industrial data logger using 4.096V-referenced 16-bit SAR ADC sampling sensor bridges. IC Role / Device Role / Timing Role: Precision DC reference source for ADC VREF pin, rejecting supply noise via 77dB PSRR. Use Value: 100µVP-P (0.1–10Hz) noise and 0.15µV/µA load regulation preserve effective resolution beyond 15.5 ENOB. |
| Industrial Process Controllers | Precision 4V Systems |
Use Scenario: Loop-powered 4–20mA transmitter with onboard 4.096V reference for DAC-based current control. IC Role / Device Role / Timing Role: Low-power, low-dropout reference enabling operation from 4.2V supply headroom. Use Value: 100mV dropout at 500µA allows use in space-constrained 24V loop designs with minimal voltage overhead. |
Use Scenario: Battery-operated IoT sensor node using 4.096V rail for ultra-low-noise LDO and signal chain biasing. IC Role / Device Role / Timing Role: Micropower reference generating stable 4.096V from single Li-ion cell (3.0–4.2V) via boost converter. Use Value: 35µA quiescent current minimizes standby power draw, extending shelf life in maintenance-free deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR4540BRZ | 4.096V output, ±1.5mV initial accuracy, 3ppm/°C max tempco, 950µA quiescent current | Higher supply current limits battery life; superior tempco suits metrology-grade systems | Select when ultimate temperature stability outweighs micropower requirements |
| REF5040AIDR | 4.096V output, ±1mV initial accuracy, 3ppm/°C max tempco, 950µA quiescent current, 10µVP-P (0.1–10Hz) noise | Lower noise and tighter accuracy but 27× higher supply current; requires external compensation | Choose for lab-grade instrumentation where noise floor dominates, not portable operation |
Compared with ADR4540BRZ and REF5040AIDR, MAX6198AESA+T delivers the lowest quiescent current (35µA vs. >900µA) and smallest footprint (SO-8), making it uniquely suited for space- and energy-constrained embedded systems - while trading minor accuracy/tempco margin for order-of-magnitude power savings.
Availability
MAX6198AESA+T is available at Aetrix Electronics and suitable for hand-held multimeters, precision ADC/DAC interfaces, industrial process controllers, and battery-powered 4V sensor nodes requiring stable component supply with guaranteed long-term continuity.
Supply support for MAX6198AESA+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 precision, power, and interface applications across industrial, medical, and communications markets.
The MAX6190–MAX6195/MAX6198 family was engineered specifically for micropower, low-dropout voltage reference needs in portable and high-accuracy measurement systems - prioritizing ultra-low IQ, tight initial tolerance, and robust thermal stability.
FAQ
What is the maximum load current supported by MAX6198AESA+T?
MAX6198AESA+T can source and sink up to ±500µA while maintaining specified accuracy and dropout performance. Load regulation is guaranteed at 0.15µV/µA, meaning output voltage shifts less than 75µV across the full ±500µA range - sufficient to drive multiple ADC reference inputs or op-amp bias networks without external buffering.
Does MAX6198AESA+T require an output capacitor for stability?
No, MAX6198AESA+T is internally compensated and stable with 0–2.2nF output capacitance. External capacitors are optional and only recommended in applications with fast load or supply transients to reduce overshoot; omitting them saves board space and cost in static-bias applications like ADC references.
What is the minimum input voltage required for MAX6198AESA+T to regulate at 4.096V?
The minimum input voltage for MAX6198AESA+T is VOUT + 0.2V = 4.296V under typical conditions, with 100mV dropout guaranteed at 500µA load. Absolute minimum VIN is 4.296V, but for reliable operation across temperature and process variation, 4.35V is recommended - enabling compatibility with regulated 4.4V rails or boosted single-cell supplies.
How does MAX6198AESA+T compare to MAX6198BESA+T and MAX6198CESA+T?
MAX6198AESA+T offers the highest grade: ±2mV initial accuracy and ≤5ppm/°C temperature coefficient. MAX6198BESA+T is ±5mV/≤10ppm/°C, and MAX6198CESA+T is ±10mV/≤25ppm/°C. All share identical pinout, package, and electrical behavior except accuracy specs - allowing drop-in replacement with relaxed tolerances where system-level calibration compensates for drift.
Is MAX6198AESA+T suitable for automotive applications?
MAX6198AESA+T is rated for -40°C to +85°C operation and is RoHS-compliant, but it is not AEC-Q200 qualified. For automotive use, Maxim offers the automotive-grade variant MAX6198AESA/V+, which undergoes extended reliability testing and qualifies for under-hood environments - MAX6198AESA+T is intended for industrial and commercial applications only.
MAX6198AESA+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:
- 500 µA
- Tolerance:
- ±0.05%
- Temperature Coefficient:
- 5ppm/°C
- Noise - 0.1Hz to 10Hz:
- 100µVp-p
- Noise - 10Hz to 10kHz:
- 200µVrms
- Voltage - Input:
- 4.296V ~ 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
MAX6198AESA+T FAQ
1.How can I place an order for MAX6198AESA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6198AESA+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 MAX6198AESA+T reliable?
The price and inventory of MAX6198AESA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6198AESA+T is usually 5 days.
3.What payment methods are accepted for MAX6198AESA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6198AESA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6198AESA+T?
MAX6198AESA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6198AESA+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 MAX6198AESA+T?
For technical support, including MAX6198AESA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6198AESA+T requirements.
6.How does Aetrix verify that MAX6198AESA+T is sourced from the original manufacturer or authorized distributors?
All MAX6198AESA+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 MAX6198AESA+T meets industry standards.
7.What is the process for return or replacement of MAX6198AESA+T?
All MAX6198AESA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6198AESA+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 MAX6198AESA+T part is unused and in its original packaging.
Return procedure for MAX6198AESA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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