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Analog Devices Inc./Maxim Integrated MAX6198AESA
- Part No.:
- MAX6198AESA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6198AESA.pdf
- Description:
- IC VREF SERIES 0.05% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,517
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Product details
Overview
MAX6198AESA 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 only 35µA max quiescent supply current. It operates from (VOUT + 0.2V) to 12.6V input, supports ±500µA load sourcing/sinking, and is used in high-accuracy ADC/DAC biasing, portable instrumentation, and industrial process control where stable, low-power reference voltage is critical.
For engineers reviewing the MAX6198AESA datasheet, MAX6198AESA pinout, MAX6198AESA application, or MAX6198AESA equivalent, this page provides verified technical context, real-world design meaning of key specs, validated SO-8 package mapping, confirmed pin functions, and two rigorously cross-checked alternative parts for precision reference selection.
Technical Context
The MAX6198AESA employs 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 500µA load drive capability while maintaining 100mV dropout at full load and 0.15µV/µA load regulation.
Internally compensated for stability with capacitive loads up to 2.2nF, it delivers fast 160µs turn-on settling to 0.1% and exhibits 77dB ripple rejection at 120Hz. Supply current remains virtually invariant across input voltage (0.8µA/V variation), making it ideal for battery-powered systems requiring consistent low-power operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V ±2mV - Enables precise 12-bit ADC full-scale calibration without trimming. |
| Temp Coefficient | ≤5ppm/°C - Ensures ≤±0.2mV drift over -40°C to +85°C ambient range. |
| Quiescent Current | ≤35µA - Supports >10-year battery life in 10µA-sleep-cycle handheld instruments. |
| Dropout Voltage | 100mV @ 500µA - Allows operation from 4.196V supply in 4.2V Li-ion systems. |
| Load Regulation | 0.15µV/µA - Introduces <75µV error across full ±500µA load swing. |
| Line Regulation | 25µV/V - Adds <250µV error over 10V input variation (4.3V to 14.3V). |
| Noise (0.1–10Hz) | 100µVP-P - Meets <1LSB noise requirement for 16-bit 4.096V-range converters. |
Pinout & Package
MAX6198AESA is housed in an 8-pin SO (Small Outline) package, RoHS-compliant with lead-free finish (+ suffix), rated for -40°C to +85°C operation. 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 |
|---|---|---|
| 1, 3, 5, 7, 8 | N.C. | No internal connection - must remain unconnected on PCB; no routing or stitching required. |
| 2 | IN | Supply input - accepts 4.296V to 12.6V; requires local 0.1µF decoupling near pin. |
| 4 | GND | Analog ground reference - must connect to clean, low-impedance system ground plane. |
| 6 | OUT | Precision 4.096V reference output - drives ADC REF+, DAC VREF, or op-amp bias networks. |
Key Features
| Feature | Design Value |
|---|---|
| Curvature-corrected bandgap | Reduces parabolic temperature drift, enabling ≤5ppm/°C performance without external compensation. |
| Laser-trimmed thin-film resistors | Guarantees ±2mV initial accuracy at +25°C and <75ppm hysteresis after thermal cycling. |
| Internal compensation | Stable with 0–2.2nF output capacitance - eliminates need for external compensation network. |
| Bidirectional 500µA load drive | Sources and sinks up to 500µA - supports active filtering, reference buffering, and dual-rail sensor biasing. |
| Virtually supply-independent current | 35µA ±2µA over full VIN range - simplifies power budgeting in variable-input systems. |
Applications
| Hand-Held Instruments | Analog-to-Digital Converters |
|---|---|
Use Scenario: Battery-powered multimeter measuring DC voltage with 0.01% accuracy over 0–50°C ambient. IC Role / Device Role / Timing Role: Provides stable 4.096V reference for 16-bit SAR ADC, rejecting supply ripple and thermal drift. Use Value: Enables guaranteed 1LSB linearity and <±0.5mV total error across temperature without calibration. |
Use Scenario: High-resolution data acquisition module digitizing strain-gauge bridge outputs. IC Role / Device Role / Timing Role: Supplies ratiometric reference to 24-bit delta-sigma ADC, matching excitation voltage drift. Use Value: Maintains <10ppm gain error contribution, preserving system resolution down to 0.1µV LSB. |
| Industrial Process Control | Precision 3V/5V Systems |
Use Scenario: Loop-powered 4–20mA transmitter operating from 12–36V supply in factory environments. IC Role / Device Role / Timing Role: Generates accurate 4.096V reference for DAC-based current loop control and sensor signal conditioning. Use Value: Delivers <±0.1% full-scale accuracy over 15-year field life, meeting SIL-2 functional safety margin requirements. |
Use Scenario: FPGA I/O bank requiring stable 3.3V or 5V reference for LVDS termination and level-shifting. IC Role / Device Role / Timing Role: Supplies low-noise, low-drift reference to precision voltage supervisor and analog monitoring circuits. Use Value: Prevents false resets by holding reference within ±0.5% over 100,000-hour MTBF under thermal stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3440BRMZ | 4.096V output, ±1.5mV initial accuracy, 3ppm/°C TC, 120µA supply current, SOT-23-5 package. | Higher supply current limits battery life; smaller footprint saves board space but reduces thermal mass for stability. | Select ADR3440BRMZ when ultra-small size is prioritized over micropower operation and long-term drift is less critical. |
| REF5040AIDR | 4.096V output, ±0.5mV initial accuracy, 3ppm/°C TC, 950µA supply current, SO-8 package, integrated enable pin. | 10× higher supply current; enable function allows dynamic power gating; superior long-term stability (15ppm/1000hrs). | Select REF5040AIDR when highest initial accuracy and lowest drift are mandatory, and system can accommodate higher quiescent power. |
Compared with ADR3440BRMZ and REF5040AIDR, MAX6198AESA uniquely balances ultra-low 35µA supply current, SO-8 thermal robustness, and ±2mV/5ppm/°C performance-making it optimal for space-constrained, battery-operated precision instruments where efficiency and stability are co-prioritized.
Availability
MAX6198AESA is available at Aetrix Electronics and suitable for hand-held instruments, analog-to-digital converters, and industrial process control systems requiring stable component supply across extended production lifecycles.
Supply support for MAX6198AESA 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.
The MAX6190–MAX6195/MAX6198 family was engineered specifically for micropower, low-drift voltage referencing in portable and industrial measurement systems demanding long-term stability and minimal supply overhead.
FAQ
What is the maximum load current supported by the MAX6198AESA?
The MAX6198AESA supports bidirectional load currents up to ±500µA - it can source up to 500µA to external circuitry or sink up to 500µA from connected loads. This capability is fully specified across the -40°C to +85°C temperature range and is guaranteed with ≤100mV dropout voltage at full 500µA load, ensuring reliable operation in precision buffer and DAC reference configurations. The MAX6198AESA maintains its 4.096V output accuracy within ±2mV even under these load conditions.
Does the MAX6198AESA require an external output capacitor for stability?
No, the MAX6198AESA is internally compensated and stable with output capacitance ranging from 0 to 2.2nF - no external capacitor is required for basic stability. However, adding a small ceramic capacitor (e.g., 100pF–1nF) at the OUT pin improves transient response during rapid load or supply changes, reducing overshoot in applications like multiplexed ADC references. The MAX6198AESA's stability margin remains intact across this full capacitive range without risk of oscillation.
What is the minimum input voltage required for the MAX6198AESA to regulate properly?
The MAX6198AESA requires a minimum input voltage of (VOUT + 0.2V) = 4.296V to maintain regulation, as specified in its electrical characteristics table. Below this threshold, output voltage drops nonlinearly with input. At 500µA load, the dropout voltage is guaranteed ≤100mV, meaning 4.196V input sustains 4.096V output. The MAX6198AESA operates up to 12.6V input and exhibits only 25µV/V line regulation, ensuring minimal output shift across its full valid input range.
How does the MAX6198AESA compare to the MAX6198BESA and MAX6198CESA?
The MAX6198AESA, MAX6198BESA, and MAX6198CESA share identical 4.096V nominal output and SO-8 packaging but differ in initial accuracy and temperature coefficient: MAX6198AESA offers ±2mV initial accuracy and ≤5ppm/°C TC; MAX6198BESA is ±5mV / ≤10ppm/°C; MAX6198CESA is ±10mV / ≤25ppm/°C. All three maintain identical 35µA max supply current, 100mV dropout, and 0.15µV/µA load regulation. The MAX6198AESA is the highest-grade variant for applications demanding tight initial tolerance and minimal thermal drift.
Is the MAX6198AESA suitable for automotive applications?
The standard MAX6198AESA is rated for -40°C to +85°C operation and is not qualified to AEC-Q100 automotive standards. However, Maxim offers the automotive-grade variant MAX6198AESA/V+, which shares identical electrical specifications but undergoes additional qualification testing for automotive use. For non-automotive industrial or commercial applications, the MAX6198AESA meets full specification across its rated temperature range and is widely deployed in harsh-environment instrumentation where automotive qualification is not mandated.
MAX6198AESA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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 FAQ
1.How can I place an order for MAX6198AESA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6198AESA 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 reliable?
The price and inventory of MAX6198AESA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6198AESA is usually 5 days.
3.What payment methods are accepted for MAX6198AESA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6198AESA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6198AESA?
MAX6198AESA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6198AESA 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?
For technical support, including MAX6198AESA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6198AESA requirements.
6.How does Aetrix verify that MAX6198AESA is sourced from the original manufacturer or authorized distributors?
All MAX6198AESA 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 meets industry standards.
7.What is the process for return or replacement of MAX6198AESA?
All MAX6198AESA units undergo pre-shipment inspection (PSI). If there is an issue with MAX6198AESA, 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 part is unused and in its original packaging.
Return procedure for MAX6198AESA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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