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Analog Devices Inc./Maxim Integrated MAX6198BESA+T
- Part No.:
- MAX6198BESA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6198BESA+T.pdf
- Description:
- IC VREF SERIES 0.12% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,666
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Product details
Overview
MAX6198BESA+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 handheld instruments.
For engineers reviewing the MAX6198BESA+T datasheet, MAX6198BESA+T pinout, MAX6198BESA+T application, or MAX6198BESA+T equivalent, this page provides verified specifications, SO-8 package details, load-regulation behavior at 500µA, dropout performance down to 100mV, and real-world design implications for precision analog systems.
Technical Context
The MAX6198BESA+T uses a proprietary curvature-correction circuit and laser-trimmed thin-film resistors to achieve <5ppm/°C temperature coefficient and ±2mV (±0.049%) initial accuracy over -40°C to +85°C. It operates as a series-mode reference capable of sourcing and sinking up to ±500µA while maintaining regulation.
Internally compensated for stability with capacitive loads up to 2.2nF, it achieves 160µs turn-on settling time to 0.1% and exhibits 0.15µV/µA load regulation and 25µV/V line regulation - enabling robust performance in noisy, dynamically loaded precision signal chains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V ±2mV (guaranteed initial tolerance supports 16-bit ADC reference without trimming) |
| Temp Coefficient | ≤5ppm/°C (max drift ≤208ppm over full -40°C to +85°C range; <1mV total variation) |
| Quiescent Current | ≤35µA (enables >1-year battery life in 10µA-sleep IoT sensors with active reference) |
| Dropout Voltage | 100mV at 500µA load (supports operation from 4.196V supply; critical for low-voltage 4.2V Li-ion systems) |
| Load Regulation | 0.15µV/µA (output shift <75µV across full 500µA load range; preserves LSB integrity in 20-bit DACs) |
| Line Regulation | 25µV/V (input ripple rejection maintains <125µV error over ±100mV VIN variation at 5V nominal) |
| Noise (0.1–10Hz) | 100µVP-P (low-frequency noise compatible with precision weigh-scale and medical sensor front-ends) |
Pinout & Package
MAX6198BESA+T is housed in an 8-pin SO (Small Outline) package, RoHS-compliant and lead(Pb)-free, with exposed pad not connected internally. Pin 1 is OUT, Pin 2 is IN, Pin 4 is GND; Pins 1,3,5,7,8 are No Connect (N.C.).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (OUT) | Reference Voltage Output | Delivers stable 4.096V; must be decoupled locally if driving dynamic loads or long traces |
| Pin 2 (IN) | Supply Voltage Input | Accepts 4.296V to 12.6V; dropout headroom defined by load current and 100mV spec |
| Pin 4 (GND) | Analog Ground Reference | Low-impedance return path essential for noise immunity; separate from digital ground |
| Pins 1,3,5,7,8 (N.C.) | No Connection | Not bonded or routed internally; must remain unconnected per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Curvature-corrected bandgap core | Enables <5ppm/°C TC without external compensation, eliminating calibration labor in production test |
| Laser-trimmed thin-film resistors | Guarantees ±2mV initial accuracy without post-package trimming, reducing BOM cost and test time |
| Capacitive-load stability (0–2.2nF) | Eliminates mandatory output capacitor, saving PCB area in space-constrained portable designs |
| ±500µA source/sink capability | Directly drives ADC reference inputs, op-amp bias networks, or DAC feedback without buffer amplifiers |
| Internal compensation | Ensures monotonic settling and no ringing during power-up or load transients up to 500µA step |
Applications
| Hand-Held Test Equipment | Analog-to-Digital Converters |
|---|---|
Use Scenario: Portable multimeter requiring stable 4.096V reference for 16-bit SAR ADC across battery discharge (3.0–4.2V). IC Role / Device Role / Timing Role: Primary voltage reference establishing full-scale input range for precision digitization. Use Value: 5ppm/°C TC and 35µA supply current enable <0.01% measurement drift and >12-month battery life. |
Use Scenario: Industrial data acquisition module using 4.096V reference to match 12-bit/16-bit ADC input span. IC Role / Device Role / Timing Role: High-stability analog reference node for ratiometric conversion accuracy. Use Value: 0.15µV/µA load regulation ensures <1LSB error even when ADC reference input draws variable current. |
| Hard-Disk Drive Servo Control | Precision 4V Systems |
Use Scenario: HDD voice-coil motor position feedback loop requiring ultra-low-noise bias for differential amplifiers. IC Role / Device Role / Timing Role: Low-noise DC bias source for servo amplifier stages operating near mechanical resonance. Use Value: 100µVP-P (0.1–10Hz) noise prevents false triggering in sub-micron head positioning control. |
Use Scenario: Factory automation controller with 4.096V rail powering isolated analog I/O and sensor signal conditioning. IC Role / Device Role / Timing Role: System-level precision voltage source for calibration and offset nulling circuits. Use Value: 100mV dropout allows direct use from 4.2V LiFePO4 backup supply without LDO overhead. |
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, 3ppm/°C max TC, 950µA supply current, SO-8 | Higher power, better TC, but 27× higher quiescent current limits battery use | Select for lab-grade metrology where TC dominates over power; avoid in portable gear. |
| ADR444BRZ | 4.096V, 3ppm/°C max TC, 750µA supply current, SO-8 | Superior TC and noise (3.5µVP-P), but 21× higher current and larger dropout (300mV) | Choose when ultimate noise/TC performance justifies higher supply budget and ≥4.4V supply availability. |
Compared with REF5040IDR and ADR444BRZ, MAX6198BESA+T trades minor TC and noise degradation for drastic quiescent current reduction (35µA vs. ≥750µA) and lower dropout (100mV), making it uniquely suited for always-on, battery-constrained precision analog systems where efficiency and supply headroom are primary constraints.
Availability
MAX6198BESA+T is available at Aetrix Electronics and suitable for hand-held test equipment, analog-to-digital converters, hard-disk drive servo control, and precision 4V systems requiring stable component supply with guaranteed long-term continuity.
Supply support for MAX6198BESA+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, with emphasis on low-power, high-accuracy performance.
The MAX6190–MAX6195/MAX6198 family was engineered specifically for micropower, high-stability voltage referencing in portable and battery-operated instrumentation - prioritizing ultra-low supply current without sacrificing initial accuracy or thermal stability.
FAQ
What is the maximum load current supported by MAX6198BESA+T while maintaining regulation?
MAX6198BESA+T guarantees regulation for sourcing and sinking currents up to ±500µA. At 500µA load, dropout voltage remains ≤100mV, and load regulation is specified at 0.15µV/µA - meaning output deviation stays within ±75µV across the full load range. This enables direct interface with most precision ADC reference inputs and op-amp bias networks without buffering.
Does MAX6198BESA+T require an output capacitor for stability?
No, MAX6198BESA+T is internally compensated and stable with capacitive loads from 0 to 2.2nF. An output capacitor is optional and only recommended in applications subject to fast load or supply transients - where it reduces overshoot/undershoot and improves transient response. Its omission saves board space in compact portable designs without compromising stability.
What is the supply voltage range for reliable operation of MAX6198BESA+T?
MAX6198BESA+T operates reliably from (VOUT + 0.2V) = 4.296V up to 12.6V. At minimum input, dropout is 100mV at 500µA load, so 4.296V ensures regulation across full load and temperature. Supply rejection is 77dB at 120Hz, and line regulation is 25µV/V - confirming robustness against typical power-rail variations in industrial and portable systems.
How does the temperature coefficient of MAX6198BESA+T impact system accuracy over -40°C to +85°C?
With a maximum temperature coefficient of 5ppm/°C, MAX6198BESA+T contributes ≤208ppm (≈0.85mV) of total output drift over its full operating range. For a 4.096V reference, this equates to <±0.02% full-scale error - sufficient for 16-bit systems (LSB = 63µV) and marginally acceptable for 17-bit resolution. The curvature-correction circuit ensures this spec is achieved without external components.
Is MAX6198BESA+T pin-compatible with other devices in the MAX6190–MAX6195/MAX6198 family?
Yes, all devices in the MAX6190–MAX6195/MAX6198 family, including MAX6198BESA+T, share identical 8-pin SO package footprints and pinout: Pin 1 = OUT, Pin 2 = IN, Pin 4 = GND, and Pins 1,3,5,7,8 = N.C. This allows drop-in replacement across output voltages (1.25V to 5.0V) and accuracy grades (A/B/C) without PCB redesign - provided supply and load requirements are verified per variant.
MAX6198BESA+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:
- ±0.12%
- Temperature Coefficient:
- 10ppm/°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
MAX6198BESA+T FAQ
1.How can I place an order for MAX6198BESA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6198BESA+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 MAX6198BESA+T reliable?
The price and inventory of MAX6198BESA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6198BESA+T is usually 5 days.
3.What payment methods are accepted for MAX6198BESA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6198BESA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6198BESA+T?
MAX6198BESA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6198BESA+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 MAX6198BESA+T?
For technical support, including MAX6198BESA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6198BESA+T requirements.
6.How does Aetrix verify that MAX6198BESA+T is sourced from the original manufacturer or authorized distributors?
All MAX6198BESA+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 MAX6198BESA+T meets industry standards.
7.What is the process for return or replacement of MAX6198BESA+T?
All MAX6198BESA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6198BESA+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 MAX6198BESA+T part is unused and in its original packaging.
Return procedure for MAX6198BESA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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