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Analog Devices Inc./Maxim Integrated MAX6193CESA
- Part No.:
- MAX6193CESA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6193CESA.pdf
- Description:
- VOLTAGE REFERENCE
- Quantity:
- Payment:
- Shipping:
Inventory:3,492
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Product details
Overview
MAX6193CESA from Maxim Integrated is a precision, micropower, low-dropout series-mode bandgap voltage reference delivering 3.000V output with ±2mV initial accuracy, 5ppm/°C max temperature coefficient, and 35µA max quiescent supply current - ideal for high-accuracy ADC/DAC biasing in battery-powered handheld instruments.
For engineers reviewing the MAX6193CESA datasheet, MAX6193CESA pinout, MAX6193CESA application, or MAX6193CESA equivalent, this device is selected for ultra-low-power, high-stability reference needs in precision 3V systems where load regulation (0.14µV/µA), dropout (100mV at 500µA), and capacitive-load stability (up to 2.2nF) are critical design constraints.
Technical Context
The MAX6193CESA uses 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. It operates as a series-mode reference capable of sourcing and sinking up to ±500µA while maintaining regulation.
Internally compensated for fast settling (100µs to 0.1%), it remains stable with capacitive loads from 0 to 2.2nF and exhibits minimal supply current variation (0.8–2µA/V) across its input range (VOUT + 0.2V to 12.6V). Line regulation is 20µV/V max; load regulation is 0.14µV/µA max.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.000V ±2mV - tightly specified nominal reference for 3V-system ADC/DAC calibration |
| Initial Accuracy | ±2mV (max) - enables single-point calibration in precision measurement front-ends |
| Temp Coefficient | 5ppm/°C (max) - ensures ≤150µV drift over full industrial temperature range |
| Quiescent Current | 35µA (max) - supports multi-year operation on coin-cell batteries |
| Dropout Voltage | 100mV at 500µA load - allows operation from 3.1V supply in low-voltage 3V systems |
| Load Regulation | 0.14µV/µA (max) - maintains reference integrity under dynamic load conditions |
| Capacitive Load Stability | 0–2.2nF - eliminates need for mandatory output capacitor, saving PCB space |
Pinout & Package
MAX6193CESA is housed in an 8-pin SO (Small Outline) package, RoHS-compliant and lead-free (ESA+ suffix), with operating temperature range –40°C to +85°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 7, 8 | N.C. | No internal connection - must be left unconnected; no routing or grounding required |
| 2 | IN | Supply voltage input - accepts 3.2V to 12.6V; dropout headroom defined relative to OUT |
| 4 | GND | Analog ground reference - requires low-impedance connection to system AGND plane |
| 6 | OUT | Precision 3.000V reference output - capable of sourcing/sinking ±500µA with minimal regulation error |
Key Features
| Feature | Design Value |
|---|---|
| Curvature-corrected bandgap core | Enables <5ppm/°C tempco without external compensation components |
| Laser-trimmed thin-film resistors | Guarantees ±2mV initial accuracy without post-assembly trimming |
| Series-mode architecture | Eliminates wasted bias current - supply current independent of load when idle |
| Internal compensation | Ensures stability with 0–2.2nF capacitive loads; no external compensation network needed |
| Low-noise output | 150µVRMS (10Hz–10kHz) supports high-resolution analog signal chains |
Applications
| Hand-Held Instruments | Analog-to-Digital Converters |
|---|---|
Use Scenario: Portable multimeter with 5½-digit resolution requiring stable reference over battery discharge and temperature swing. IC Role / Device Role / Timing Role: Primary voltage reference for SAR ADC and display driver biasing. Use Value: ±2mV initial accuracy and 5ppm/°C tempco enable factory calibration valid across full operating life without recalibration. |
Use Scenario: Precision data acquisition module sampling sensor signals at 100kSPS with 16-bit ENOB. IC Role / Device Role / Timing Role: Reference source for successive-approximation register (SAR) ADC front-end. Use Value: 0.14µV/µA load regulation prevents code errors during dynamic sensor excitation current switching. |
| Industrial Process Control | Precision 3V Systems |
Use Scenario: Loop-powered 4–20mA transmitter with HART modulation, operating from 12–24V supply. IC Role / Device Role / Timing Role: Stable 3.000V reference for DAC-based current loop control and sensor signal conditioning. Use Value: 100mV dropout at 500µA allows direct derivation from local 3.3V LDO, minimizing power loss and thermal drift. |
Use Scenario: Low-power IoT node using 3V coin cell and integrated 12-bit ADC for environmental sensing. IC Role / Device Role / Timing Role: System-level reference for MCU ADC, RTC voltage monitor, and sensor biasing. Use Value: 35µA max quiescent current extends battery life beyond 5 years in sleep-dominated duty cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3030AIDBZR | 3.0V output, ±1.5mV initial accuracy, 50ppm/°C max tempco, SOT23-3 package, 50µA supply current | Higher tempco and supply current; lacks load-sinking capability and capacitive-load stability margin | Preferred only when board space is constrained and 50ppm/°C drift is acceptable |
| ADR3430ARJZ-R7 | 3.0V output, ±2mV initial accuracy, 10ppm/°C max tempco, SOT23-5 package, 120µA supply current | Higher quiescent current and larger tempco; requires minimum 100nF output capacitor for stability | Selected when higher drive strength (>10mA) is needed, but not for ultra-low-power or capacitor-free designs |
Compared with REF3030AIDBZR and ADR3430ARJZ-R7, the MAX6193CESA delivers superior temperature stability (5ppm/°C vs. ≥10ppm/°C), lower supply current (35µA vs. ≥50µA), and true capacitor-free operation - making it optimal for space- and power-constrained 3V instrumentation where long-term calibration integrity is non-negotiable.
Availability
MAX6193CESA is available at Aetrix Electronics and suitable for hand-held instruments, precision 3V systems, and industrial process control applications requiring stable component supply, long-lifecycle support, and guaranteed traceable sourcing.
Supply support for MAX6193CESA 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, high-accuracy voltage referencing in battery-operated and space-constrained instrumentation - emphasizing ultra-low IQ, low dropout, and exceptional thermal stability.
FAQ
What is the maximum load current the MAX6193CESA can source or sink while maintaining regulation?
The MAX6193CESA is specified to source and sink up to ±500µA while maintaining output voltage regulation within datasheet limits. At 500µA load, dropout is guaranteed ≤100mV, and load regulation is bounded at 0.14µV/µA. Exceeding ±500µA may cause output deviation beyond specification and is not recommended for production designs using MAX6193CESA.
Does the MAX6193CESA require an external output capacitor for stability?
No, the MAX6193CESA is internally compensated and stable with capacitive loads from 0 to 2.2nF - meaning no output capacitor is required for stability. An optional capacitor may improve transient response in high-dynamic-load applications, but omitting it saves board space and reduces BOM count without compromising functionality of MAX6193CESA.
What is the supply voltage range for the MAX6193CESA?
The MAX6193CESA operates with a supply voltage (IN) from (VOUT + 0.2V) = 3.2V minimum to 12.6V maximum. This 3.2V–12.6V range ensures reliable operation across varying input conditions while maintaining 3.000V output accuracy and low dropout performance throughout the usable range of MAX6193CESA.
How does the MAX6193CESA's temperature coefficient compare to similar references?
The MAX6193CESA guarantees a maximum temperature coefficient of 5ppm/°C - among the lowest in its class of micropower references. This compares favorably to alternatives like REF3030AIDBZR (50ppm/°C) and ADR3430ARJZ-R7 (10ppm/°C), enabling tighter system-level accuracy over –40°C to +85°C without software compensation in MAX6193CESA-based designs.
Is the MAX6193CESA RoHS-compliant and lead-free?
Yes, the MAX6193CESA carries the ESA+ suffix, indicating it is RoHS-compliant and lead-free per JEDEC J-STD-609. The 8-pin SO package meets global environmental regulations and is suitable for modern automated assembly processes without requiring special lead-free reflow profiles beyond standard Pb-free guidelines for MAX6193CESA.
MAX6193CESA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Current - Output:
- -
- Tolerance:
- ±0.33%
- Temperature Coefficient:
- 25ppm/°C
- Noise - 0.1Hz to 10Hz:
- 75µVp-p
- Noise - 10Hz to 10kHz:
- 150µVrms
- Voltage - Input:
- 3.2V ~ 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
MAX6193CESA FAQ
1.How can I place an order for MAX6193CESA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6193CESA 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 MAX6193CESA reliable?
The price and inventory of MAX6193CESA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6193CESA is usually 5 days.
3.What payment methods are accepted for MAX6193CESA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6193CESA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6193CESA?
MAX6193CESA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6193CESA 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 MAX6193CESA?
For technical support, including MAX6193CESA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6193CESA requirements.
6.How does Aetrix verify that MAX6193CESA is sourced from the original manufacturer or authorized distributors?
All MAX6193CESA 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 MAX6193CESA meets industry standards.
7.What is the process for return or replacement of MAX6193CESA?
All MAX6193CESA units undergo pre-shipment inspection (PSI). If there is an issue with MAX6193CESA, 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 MAX6193CESA part is unused and in its original packaging.
Return procedure for MAX6193CESA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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