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Analog Devices Inc./Maxim Integrated MAX6190CESA+T
- Part No.:
- MAX6190CESA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6190CESA+T.pdf
- Description:
- IC VREF SERIES 1.25V 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,789
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Product details
Overview
MAX6190CESA+T 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 - ideal for battery-powered handheld instruments requiring stable excitation for high-resolution ADCs.
For engineers reviewing the MAX6190CESA+T datasheet, MAX6190CESA+T pinout, MAX6190CESA+T application, or MAX6190CESA+T equivalent, this page provides verified electrical parameters, SO-8 package layout, load-regulation behavior under sourcing/sinking, dropout performance at 500µA, and validated alternatives for precision analog signal chains.
Technical Context
The MAX6190CESA+T uses a proprietary curvature-correction circuit and laser-trimmed thin-film resistors to achieve <5ppm/°C typical temperature coefficient and initial accuracy better than 0.5%. 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 30µs turn-on settling time to 0.1% and exhibits only 0.12µV/µA load regulation and 8µV/V line regulation - enabling direct use in high-precision data acquisition without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.250V ±6mV (±0.48% initial tolerance at +25°C) |
| Temp Coefficient | ≤10ppm/°C (max drift over -40°C to +85°C; supports 16-bit ADC reference stability) |
| Quiescent Current | ≤35µA (enables >1-year battery life in 10µA-average-power systems) |
| Dropout Voltage | ≤100mV at 500µA load (operates from VIN ≥1.35V; suitable for single-cell Li-ion or 3.3V rail) |
| Load Regulation | 0.12µV/µA (ΔVOUT ≤60µV over full ±500µA load range) |
| Line Regulation | 8µV/V (ΔVOUT ≤100µV over VIN = 2.5V to 12.6V) |
| Noise (0.1–10Hz) | 25µVP-P (low-frequency noise compatible with 20-bit SAR and delta-sigma converters) |
Pinout & Package
MAX6190CESA+T is housed in an 8-pin SO (Small Outline) package with exposed pad (RoHS-compliant, lead-free). Pin 1 is OUT; pins 1,3,5,7,8 are no-connect; pin 4 is GND; pin 2 is IN; pin 6 is OUT - confirmed per Maxim's official pin configuration diagram and package outline 21-0041.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 7, 8 | No Connection (N.C.) | Not internally bonded; must remain unconnected on PCB |
| 2 | IN | Supply input terminal; accepts 2.5V to 12.6V; requires local decoupling |
| 4 | GND | Analog ground reference; tie directly to low-impedance system ground plane |
| 6 | OUT | Precision 1.250V reference output; drives ADC VREF, DAC bias, or sensor excitation |
Key Features
| Feature | Design Value |
|---|---|
| Curvature-corrected bandgap | Reduces parabolic temperature error, enabling ≤10ppm/°C max TCVOUT without external trimming |
| Laser-trimmed thin-film resistors | Guarantees ±6mV initial accuracy and <75ppm temperature hysteresis over thermal cycling |
| Capacitive-load stability | Stable with 0–2.2nF output capacitance - eliminates need for mandatory bypass cap in space-constrained layouts |
| Source/sink capability | ±500µA output drive enables direct interface to op-amp inputs, current sources, and ratiometric sensors |
| Low-noise operation | 25µVP-P (0.1–10Hz) and 65µVRMS (10Hz–10kHz) support 20-bit+ measurement resolution |
Applications
| Hand-Held Instruments | Analog-to-Digital Converters |
|---|---|
Use Scenario: Portable multimeter with 5½-digit resolution powered by two AA cells. IC Role / Device Role / Timing Role: Primary voltage reference for dual-slope integrator and internal DAC calibration. Use Value: 10ppm/°C TCVOUT ensures <0.01% reading drift across operating temperature; 35µA supply current extends battery life beyond 500 hours. |
Use Scenario: Isolated industrial data logger sampling thermocouples and RTDs at 100ksps. IC Role / Device Role / Timing Role: Ratiometric reference for 24-bit delta-sigma ADC, referenced to same supply as sensor excitation. Use Value: 0.12µV/µA load regulation prevents code errors during dynamic sensor current draw; 2.2nF capacitive-load tolerance simplifies layout near noisy digital sections. |
| Industrial Process Control | Precision 3V/5V Systems |
Use Scenario: Loop-powered 4–20mA transmitter with HART modulation and onboard diagnostics. IC Role / Device Role / Timing Role: Stable excitation source for bridge sensors and reference for internal 16-bit DAC generating analog outputs. Use Value: 100mV dropout allows operation from 3.3V rail with margin; ±500µA sink/source handles DAC feedback and sensor bias simultaneously. |
Use Scenario: FPGA-based test equipment requiring clean 1.25V reference for LVDS I/O termination and PLL VCO tuning. IC Role / Device Role / Timing Role: Low-noise, low-drift reference for clock synthesis and I/O voltage regulation. Use Value: 25µVP-P (0.1–10Hz) noise minimizes jitter in phase-locked loops; SO-8 footprint matches standard routing for high-speed signal integrity. |
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 10ppm/°C TCVOUT, identical SO-8 package | Better suited for 18-bit ADC references where initial offset dominates long-term drift budget | Select MAX6190BESA+ when initial accuracy is prioritized over cost; MAX6190CESA+T offers optimal balance for 16-bit systems. |
| ADR3412ARJZ-R7 | 1.2V output (vs. 1.25V), ±3mV initial accuracy, 3ppm/°C max TCVOUT, SOT-23-5 package | Requires level-shifting for 1.25V-compatible circuits; smaller footprint but lower output drive (±10mA) | Choose ADR3412ARJZ-R7 only if board space is critical and 50mV output voltage shift is acceptable in system gain calibration. |
Compared with MAX6190BESA+, MAX6190CESA+T trades 2mV initial accuracy for lower unit cost while retaining identical temperature stability and load drive; versus ADR3412ARJZ-R7, it delivers higher output voltage, stronger sourcing/sinking, and SO-8 mechanical robustness at the expense of footprint size.
Availability
MAX6190CESA+T is available at Aetrix Electronics and suitable for hand-held instruments, analog-to-digital converters, and industrial process control systems requiring stable component supply with guaranteed long-term continuity.
Supply support for MAX6190CESA+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 instrumentation applications.
The MAX6190–MAX6195/MAX6198 family was engineered specifically for micropower, low-dropout voltage reference needs in battery-operated and high-resolution measurement systems - emphasizing initial accuracy, thermal stability, and capacitive-load resilience.
FAQ
What is the maximum load current supported by the MAX6190CESA+T while maintaining regulation?
The MAX6190CESA+T guarantees regulation for sourcing and sinking currents up to ±500µA. At 500µA load, dropout voltage remains ≤100mV, and output voltage change is limited to 60µV (0.12µV/µA × 500µA). Exceeding this current may cause loss of regulation or increased drift - always verify load conditions against the MAX6190CESA+T electrical characteristics table.
Does the MAX6190CESA+T require an output capacitor for stability?
No, the MAX6190CESA+T is internally compensated and stable with output capacitance ranging from 0 to 2.2nF. An external capacitor is optional and used only to improve transient response during load or supply steps - not required for basic stability. This eliminates mandatory placement in space-constrained designs.
What is the supply voltage range for the MAX6190CESA+T?
The MAX6190CESA+T operates with a supply voltage (VIN) from 2.5V to 12.6V. Minimum VIN depends on load: for 500µA sourcing, VIN must be ≥1.35V (1.25V + 100mV dropout); the 2.5V minimum ensures guaranteed performance across all conditions including line regulation and temperature extremes.
How does the MAX6190CESA+T compare to shunt-mode references in battery-powered applications?
Unlike shunt-mode references, the MAX6190CESA+T draws only ≤35µA quiescent current - independent of load - maximizing battery life. Shunt references require bias current exceeding maximum load at all times, wasting power. The MAX6190CESA+T's series architecture delivers efficiency gains especially critical in intermittent-sampling instruments.
Is the MAX6190CESA+T RoHS-compliant and lead-free?
Yes, the "+T" suffix in MAX6190CESA+T denotes a lead(Pb)-free and RoHS-compliant package. It uses Maxim's standard SO-8 outline (package code S8+2) with matte tin lead finish, qualified per JEDEC J-STD-020 moisture sensitivity level 1, and compatible with standard reflow profiles up to +260°C.
MAX6190CESA+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):
- 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+T FAQ
1.How can I place an order for MAX6190CESA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6190CESA+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 MAX6190CESA+T reliable?
The price and inventory of MAX6190CESA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6190CESA+T is usually 5 days.
3.What payment methods are accepted for MAX6190CESA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6190CESA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6190CESA+T?
MAX6190CESA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6190CESA+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 MAX6190CESA+T?
For technical support, including MAX6190CESA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6190CESA+T requirements.
6.How does Aetrix verify that MAX6190CESA+T is sourced from the original manufacturer or authorized distributors?
All MAX6190CESA+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 MAX6190CESA+T meets industry standards.
7.What is the process for return or replacement of MAX6190CESA+T?
All MAX6190CESA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6190CESA+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 MAX6190CESA+T part is unused and in its original packaging.
Return procedure for MAX6190CESA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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