My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6198CESA+
- Part No.:
- MAX6198CESA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6198CESA+.pdf
- Description:
- IC VREF SERIES 0.24% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:339
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6198CESA+ 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-designed for high-accuracy ADC/DAC biasing in battery-powered handheld instruments.
For engineers reviewing the MAX6198CESA+ datasheet, MAX6198CESA+ pinout, MAX6198CESA+ application, or MAX6198CESA+ equivalent, this page delivers verified specifications, SO-8 package details, load-regulation behavior at 500µA, dropout performance down to 100mV, and real-world settling time (160µs) critical for precision data acquisition systems.
Technical Context
The MAX6198CESA+ employs a proprietary curvature-correction circuit and laser-trimmed thin-film resistors to achieve <5ppm/°C temperature coefficient and ±2mV initial accuracy across –40°C to +85°C. It operates as a series-mode reference capable of sourcing and sinking up to ±500µA while maintaining stability with capacitive loads from 0 to 2.2nF.
Its supply current remains virtually invariant over input voltage (2.5V to 12.6V), varying only 0.8–2µA/V, and it features internal compensation enabling fast turn-on settling (160µs to 0.1%) without external compensation components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V ±2mV - tight tolerance enables direct interface with 12-bit SAR ADCs without trimming |
| Temp Coefficient | ≤5ppm/°C - ensures <±0.25mV drift over full industrial temperature range |
| Quiescent Current | ≤35µA - supports >10-year battery life in always-on portable instrumentation |
| Dropout Voltage | 100mV at 500µA load - allows operation from 4.2V Li-ion cells with margin |
| Load Regulation | 0.15µV/µA - maintains <75µV shift across full ±500µA load range |
| Line Regulation | 25µV/V - rejects input ripple effectively even with unregulated supplies |
| Capacitive Load Stability | 0–2.2nF - eliminates need for output capacitor in space-constrained PCB layouts |
Pinout & Package
MAX6198CESA+ is housed in an 8-pin SO (Small Outline) package, RoHS-compliant and rated for –40°C to +85°C operation. Pins 1, 3, 5, 7, and 8 are No Connect (N.C.), internally unconnected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 2 | IN | Supply voltage input (2.5V to 12.6V); must exceed VOUT by ≥100mV for regulation |
| 4 | GND | Analog ground reference; requires low-impedance connection to minimize noise coupling |
| 6 | OUT | Precision 4.096V reference output; capable of sourcing/sinking ±500µA with minimal droop |
Key Features
| Feature | Design Value |
|---|---|
| Laser-trimmed thin-film resistors | Enable ±2mV initial accuracy and <5ppm/°C tempco without external calibration |
| Curvature-correction circuit | Compensates second-order thermal effects, reducing output drift across temperature extremes |
| Internal compensation | Guarantees stability with 0–2.2nF capacitive loads-no external compensation required |
| Low-noise architecture | Delivers 100µVP-P (0.1Hz–10Hz) and 200µVRMS (10Hz–10kHz) for clean analog signal chains |
| Fast turn-on settling | Reaches 0.1% of final value in 160µs (COUT = 50pF), supporting burst-mode sampling |
Applications
| Hand-Held Multimeters | Portable Data Loggers |
|---|---|
Use Scenario: Battery-powered 4½-digit DMM requiring stable reference for autoranging ADC conversion. IC Role / Device Role / Timing Role: Primary voltage reference for 24-bit sigma-delta ADC front-end, providing excitation for precision resistor measurements. Use Value: ±2mV initial accuracy and 5ppm/°C tempco ensure <0.01% measurement error across operating temperature without recalibration. |
Use Scenario: Low-power environmental sensor node logging temperature/humidity at 1-minute intervals. IC Role / Device Role / Timing Role: Reference source for microcontroller-integrated 12-bit ADC during wake-up bursts. Use Value: 35µA quiescent current minimizes standby power; 100mV dropout enables use with aging 3.6V Li-SOCl₂ cells. |
| Industrial Loop-Powered Transmitters | Medical Patient Monitoring Devices |
Use Scenario: 4–20mA transmitter with HART modulation, powered from 24V loop with tight thermal constraints. IC Role / Device Role / Timing Role: Precision reference for DAC generating analog output; also supplies bias to op-amps in signal conditioning path. Use Value: Load regulation of 0.15µV/µA ensures stable output despite dynamic current draw from HART modem pulses. |
Use Scenario: Portable ECG monitor using dry electrodes and low-noise analog front-end. IC Role / Device Role / Timing Role: Reference for 16-bit ADC digitizing amplified biopotential signals; contributes to total input-referred noise budget. Use Value: 100µVP-P (0.1Hz–10Hz) low-frequency noise prevents baseline wander artifacts in ECG waveforms. |
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 output, 3ppm/°C max tempco, 95µA quiescent current, SO-8 package | Higher supply current limits battery life; superior tempco suits lab-grade equipment | Select REF5040IDR when ultra-low drift (<3ppm/°C) outweighs micropower requirements |
| ADR444BRZ | 4.096V output, 3ppm/°C max tempco, 770µA quiescent current, SO-8 package | High supply current incompatible with portable designs; better long-term stability (15ppm/1000hrs) | Choose ADR444BRZ for fixed-power, high-stability applications like automated test equipment |
Compared with REF5040IDR and ADR444BRZ, MAX6198CESA+ uniquely balances sub-35µA quiescent current, 5ppm/°C tempco, and SO-8 compatibility-making it optimal for space- and energy-constrained portable instrumentation where moderate stability suffices.
Availability
MAX6198CESA+ is available at Aetrix Electronics and suitable for hand-held multimeters, portable data loggers, and industrial loop-powered transmitters requiring stable component supply with guaranteed long-term continuity.
Supply support for MAX6198CESA+ 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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, medical, and communications applications.
The MAX6190–MAX6195/MAX6198 family was designed specifically for micropower, high-accuracy voltage referencing in battery-operated and thermally constrained systems-emphasizing low dropout, low noise, and exceptional temperature stability.
FAQ
What is the maximum load current supported by MAX6198CESA+ while maintaining regulation?
MAX6198CESA+ guarantees regulation while sourcing or sinking up to ±500µA. At 500µA load, dropout voltage remains ≤100mV, and load regulation is specified at 0.15µV/µA-resulting in <75µV total output shift across the full range. Exceeding ±500µA may cause output deviation beyond datasheet limits or thermal stress.
Does MAX6198CESA+ require an external output capacitor for stability?
No, MAX6198CESA+ is internally compensated and stable with capacitive loads from 0 to 2.2nF. An external capacitor is optional and only recommended to improve transient response in applications with rapid load or supply steps-not required for basic DC stability. Omitting it saves board space and cost in compact designs.
What is the supply voltage range for reliable operation of MAX6198CESA+?
MAX6198CESA+ operates reliably with input voltages from (VOUT + 0.2V) = 4.296V up to 12.6V. Minimum input must exceed 4.296V to maintain regulation; below that, output drops linearly. The device draws up to 200µA during turn-on if VIN is near minimum, so the supply must support this surge.
How does the temperature coefficient of MAX6198CESA+ compare to its grade variants?
MAX6198CESA+ has a maximum temperature coefficient of 5ppm/°C, matching the 'A' grade (MAX6198AESA+) and tighter than 'B' (10ppm/°C) and 'C' (25ppm/°C) grades. All variants share the same 4.096V nominal output and SO-8 package; only initial accuracy and tempco differ between grades-no functional or pinout changes.
Can MAX6198CESA+ be used in bipolar reference configurations?
Yes-MAX6198CESA+ can serve as the positive leg in bipolar reference circuits. As shown in Maxim's Figure 1, pairing it with a charge-pump inverter (e.g., MAX681) and precision op-amp (e.g., ICL7652) generates matched ±4.096V rails. Its ability to sink current enables active negative regulation, unlike passive resistor-based solutions.
MAX6198CESA+ 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:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 4.096V
- Voltage - Output (Max):
- -
- Current - Output:
- 500 µA
- Tolerance:
- ±0.24%
- Temperature Coefficient:
- 25ppm/°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
MAX6198CESA+ FAQ
1.How can I place an order for MAX6198CESA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6198CESA+ 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 MAX6198CESA+ reliable?
The price and inventory of MAX6198CESA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6198CESA+ is usually 5 days.
3.What payment methods are accepted for MAX6198CESA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6198CESA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6198CESA+?
MAX6198CESA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6198CESA+ 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 MAX6198CESA+?
For technical support, including MAX6198CESA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6198CESA+ requirements.
6.How does Aetrix verify that MAX6198CESA+ is sourced from the original manufacturer or authorized distributors?
All MAX6198CESA+ 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 MAX6198CESA+ meets industry standards.
7.What is the process for return or replacement of MAX6198CESA+?
All MAX6198CESA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6198CESA+, 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 MAX6198CESA+ part is unused and in its original packaging.
Return procedure for MAX6198CESA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6198CESA+ Tags
-
TL431AIDBZR
Texas Instruments
-
TL431BQDBZR
Texas Instruments
-
AN431AN-ATRG1
Diodes Incorporated
-
LM4040CYM3-2.5-TR
Microchip Technology
-
LM4040CYM3-4.1-TR
Microchip Technology
-
LM4040EIM3-2.5/NOPB
Texas Instruments
-
AZ431LBNTR-G1
Diodes Incorporated
-
LM4040D20IDBZR
Texas Instruments
-
LM4041DIM3-ADJ/NOPB
Texas Instruments
-
LM4040DIM3X-2.5/NOPB
Texas Instruments
-
LM4040DIM3-2.5/NOPB
Texas Instruments
-
AZ431LANTR-G1
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
