My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6190CESA
- Part No.:
- MAX6190CESA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6190CESA.pdf
- Description:
- IC VREF SERIES 0.48% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,318
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6190CESA from Maxim Integrated is a precision, micropower, low-dropout series-mode bandgap voltage reference delivering 1.250V output with ±6mV initial accuracy, 10ppm/°C max temperature coefficient, and 35µA max quiescent current - optimized for high-accuracy ADC/DAC biasing in battery-powered handheld instruments.
For engineers reviewing the MAX6190CESA datasheet, MAX6190CESA pinout, MAX6190CESA application, or MAX6190CESA equivalent, this device supports critical low-power, low-noise, low-drift analog signal chains where supply headroom is constrained and long-term stability under thermal cycling matters.
Technical Context
The MAX6190CESA uses a proprietary curvature-correction circuit and laser-trimmed thin-film resistors to achieve <10ppm/°C temperature coefficient and ±6mV (±0.48%) initial accuracy at 1.250V. It operates as a series-mode reference capable of sourcing and sinking up to ±500µA load current.
Internally compensated for stability with capacitive loads up to 2.2nF, it achieves 30µs typical turn-on settling time to 0.1% and maintains 8µV/V line regulation and 0.12µV/µA load regulation across its 2.5V to 12.6V input range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.250V ±6mV (±0.48%) - tight tolerance enables direct use with 12-bit+ SAR ADCs without calibration. |
| Temp Coefficient | ≤10ppm/°C - ensures ≤125µV drift over -40°C to +85°C, critical for portable metrology. |
| Quiescent Current | ≤35µA - enables >1-year battery life in coin-cell–powered sensors with 10µA average system draw. |
| Dropout Voltage | 100mV at 500µA load - allows operation from 1.35V supply, supporting single-cell LiFePO₄ or two alkaline cells. |
| Load Regulation | 0.12µV/µA - delivers <60µV shift across full ±500µA load swing, preserving reference integrity in dynamic loads. |
| Noise (0.1–10Hz) | 65µVRMS - low flicker noise avoids degradation of high-resolution DC measurements. |
| Long-Term Stability | 50ppm/1000hrs - predictable aging behavior simplifies lifetime accuracy modeling in industrial field devices. |
Pinout & Package
MAX6190CESA is housed in an 8-pin SO (Small Outline) package with RoHS-compliant lead finish. Pins 1, 3, 5, 7, and 8 are No Connect (N.C.) and must remain unconnected. Ground (Pin 4) and supply input (Pin 2) provide stable biasing; output (Pin 6) delivers the precision 1.250V reference.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1, 3, 5, 7, 8 | No Connection (N.C.) | Not internally bonded - leave floating or ground only if required by PCB EMI strategy; no electrical function. |
| Pin 2 | IN | Supply input terminal; accepts 2.5V to 12.6V; requires local 0.1µF decoupling near pin. |
| Pin 4 | GND | Analog ground reference; must connect to clean, low-impedance system ground plane. |
| Pin 6 | OUT | Precision 1.250V output; capable of sourcing/sinking ±500µA; stable with 0–2.2nF capacitive load. |
Key Features
| Feature | Design Value |
|---|---|
| Curvature-corrected bandgap core | Reduces parabolic temperature error, enabling ≤10ppm/°C drift without external compensation. |
| Laser-trimmed thin-film resistors | Provides ±6mV initial accuracy at 1.250V and guarantees long-term stability without post-assembly trimming. |
| Series-mode architecture | Draws only 35µA quiescent current regardless of load - unlike shunt references, no wasted bias current at light loads. |
| Capacitive-load tolerant | Stable with 0–2.2nF output capacitance - eliminates need for external compensation networks in space-constrained layouts. |
| Fast 30µs turn-on settling | Reaches 0.1% of final value within 30µs (COUT = 50pF), enabling low-duty-cycle power-gating in portable systems. |
Applications
| Hand-Held Instruments | Analog-to-Digital Converters |
|---|---|
Use Scenario: Portable multimeter measuring DC voltage with 16-bit sigma-delta ADC. IC Role / Device Role / Timing Role: Provides stable 1.250V reference for ADC full-scale calibration and offset nulling. Use Value: ±6mV initial accuracy and 10ppm/°C drift ensure <0.01% measurement error across operating temperature without recalibration. |
Use Scenario: Battery-powered data logger sampling thermocouple signals via 12-bit SAR ADC. IC Role / Device Role / Timing Role: Supplies precise reference voltage to ADC's VREF pin during active conversion cycles. Use Value: 35µA quiescent current minimizes impact on battery life; 0.12µV/µA load regulation prevents code errors during digital I/O switching transients. |
| Industrial Process Control | Precision 3V/5V Systems |
Use Scenario: Loop-powered 4–20mA transmitter with onboard microcontroller and DAC. IC Role / Device Role / Timing Role: References DAC output for accurate current loop scaling and sensor excitation. Use Value: Sourcing/sinking ±500µA enables direct drive of DAC reference inputs and op-amp bias networks without buffer amplifiers. |
Use Scenario: Low-voltage microcontroller system using 3.3V LDO with 1.25V feedback divider. IC Role / Device Role / Timing Role: Replaces resistor divider to set LDO output with ppm-level accuracy and zero tempco drift. Use Value: 100mV dropout at 500µA allows operation from 1.35V supply - compatible with single LiFePO₄ cell or energy-harvesting sources. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6190BESA+ | ±4mV initial accuracy (tighter), same 1.250V output, identical 10ppm/°C max tempco and 35µA IQ. | Better initial accuracy suits higher-resolution 14–16-bit ADCs where factory calibration is minimized. | Select MAX6190BESA+ when ±4mV (±0.32%) initial tolerance is required; same footprint and biasing. |
| ADR3412ARJZ-R7 | 1.200V output, ±3mV initial accuracy, 3ppm/°C max tempco, 120µA IQ, SOT-23-5 package. | Lower noise (30µVRMS) but higher supply current limits battery life; different output voltage requires circuit redesign. | Choose ADR3412ARJZ-R7 only if lower tempco and noise outweigh 3.4× higher quiescent current and 50mV output mismatch. |
Compared with MAX6190BESA+, MAX6190CESA trades 2mV initial accuracy for cost-sensitive production; versus ADR3412ARJZ-R7, it offers 3.4× lower supply current and SO-8 compatibility but with higher tempco and noise - making it optimal for mid-accuracy, ultra-low-power, space-tolerant designs.
Availability
MAX6190CESA is available at Aetrix Electronics and suitable for handheld instruments, precision ADC/DAC biasing, and industrial process control systems requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for MAX6190CESA 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 in industrial, medical, and portable systems.
The MAX6190–MAX6195/MAX6198 family was engineered specifically for micropower, low-dropout, high-stability voltage referencing in battery-operated and thermally variable environments - prioritizing initial accuracy, tempco, and quiescent current over speed or high output drive.
FAQ
What is the guaranteed initial accuracy of the MAX6190CESA?
The MAX6190CESA has a guaranteed initial output voltage accuracy of ±6mV (±0.48%) at 1.250V across the -40°C to +85°C temperature range, as specified in the Electrical Characteristics table under "Output Voltage" for the 'C' grade variant. This tolerance is laser-trimmed and does not require user calibration.
Can the MAX6190CESA drive a 500µA load while maintaining regulation?
Yes, the MAX6190CESA is fully specified to source and sink up to ±500µA while maintaining guaranteed load regulation of 0.12µV/µA and output voltage stability within ±6mV. Its 100mV dropout at 500µA ensures reliable operation even with minimal input headroom.
Does the MAX6190CESA require an external output capacitor?
No, the MAX6190CESA is internally compensated and stable with output capacitance from 0 to 2.2nF. An external capacitor is optional and only recommended in applications subject to fast load or supply transients to improve transient response - it is not needed for basic stability.
What is the maximum supply voltage for the MAX6190CESA?
The absolute maximum supply voltage (IN) for the MAX6190CESA is +13.5V referenced to GND. However, the recommended operating range is 2.5V to 12.6V, with guaranteed performance including line regulation and dropout behavior validated across that span.
How does the MAX6190CESA compare to the MAX6190AESA+ and MAX6190BESA+?
The MAX6190CESA (±6mV) offers the widest initial tolerance in the MAX6190 family, compared to ±2mV for MAX6190AESA+ and ±4mV for MAX6190BESA+. All three share identical pinout, package, tempco (≤10ppm/°C), quiescent current (≤35µA), and functional specifications - differing only in initial accuracy grading.
MAX6190CESA 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):
- 1.25V
- Voltage - Output (Max):
- -
- Current - Output:
- 500 µA
- Tolerance:
- ±0.48%
- Temperature Coefficient:
- 25ppm/°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
MAX6190CESA FAQ
1.How can I place an order for MAX6190CESA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6190CESA 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 MAX6190CESA reliable?
The price and inventory of MAX6190CESA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6190CESA is usually 5 days.
3.What payment methods are accepted for MAX6190CESA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6190CESA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6190CESA?
MAX6190CESA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6190CESA 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 MAX6190CESA?
For technical support, including MAX6190CESA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6190CESA requirements.
6.How does Aetrix verify that MAX6190CESA is sourced from the original manufacturer or authorized distributors?
All MAX6190CESA 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 MAX6190CESA meets industry standards.
7.What is the process for return or replacement of MAX6190CESA?
All MAX6190CESA units undergo pre-shipment inspection (PSI). If there is an issue with MAX6190CESA, 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 MAX6190CESA part is unused and in its original packaging.
Return procedure for MAX6190CESA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6190CESA 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…
