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Analog Devices Inc./Maxim Integrated MAX6164AESA
- Part No.:
- MAX6164AESA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6164AESA.pdf
- Description:
- IC VREF SERIES 0.05% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,895
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Product details
Overview
MAX6164AESA from Maxim Integrated is a precision, low-dropout, micropower series voltage reference delivering a stable 4.096V output with ±2mV initial accuracy and 5ppm/°C max temperature coefficient over -40°C to +85°C. It sources up to 5mA, sinks 2mA, operates from (VOUT + 200mV) to 12.6V, and requires no external compensation capacitor-ideal for high-resolution ADC biasing in portable instrumentation.
For engineers reviewing the MAX6164AESA datasheet, MAX6164AESA pinout, MAX6164AESA application, or MAX6164AESA equivalent, key selection criteria include its 4.096V output matched to 12-bit DAC/ADC full-scale ranges, ultra-low 100μA quiescent current, 200mV max dropout at 1mA, 50μVp-p (0.1–10Hz) noise, and SO-8 package compatibility with space-constrained PCB layouts.
Technical Context
The MAX6164AESA uses a proprietary curvature-correction circuit and laser-trimmed thin-film resistors to achieve 5ppm/°C max TCVOUT and ±2mV initial accuracy. Its BiCMOS process enables stable operation with 1μF capacitive loads while eliminating need for external compensation.
It functions as a three-terminal series reference: IN supplies regulated current to OUT, GND provides reference return, and all N.C. pins are unconnected. Supply current varies only 3.2–8.0μA/V across input range, ensuring predictable power draw in battery-sensitive systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V ±2mV at +25°C - matches standard 12-bit ADC full-scale reference points |
| Temp Coefficient | ≤5ppm/°C max - ensures ≤±0.5mV drift over -40°C to +85°C operating range |
| Dropout Voltage | ≤200mV at 1mA load - supports operation from 4.296V input, enabling single-cell Li-ion use |
| Quiescent Current | 100–120μA typical - extends battery life in always-on sensor nodes |
| Noise (0.1–10Hz) | 50μVp-p - minimizes quantization error in 16-bit+ data acquisition |
| Load Regulation | 0.6–0.9mV/mA sourcing - maintains stability under dynamic ADC sampling currents |
| Ripple Rejection | 72dB at 120Hz - suppresses AC line noise in mixed-signal embedded systems |
Pinout & Package
MAX6164AESA is housed in an 8-pin SO (Small Outline) package with exposed pad (RoHS-compliant, lead-free). Pin 1–3, 5, 7–8 are No Connect; Pin 2 is IN; Pin 4 is GND; Pin 6 is OUT.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 2) | Input supply terminal | Accepts 4.296V–12.6V; supplies regulated current to OUT; must be decoupled with 0.1μF ceramic cap for optimal line transient response |
| GND (Pin 4) | Reference ground | Provides return path for load current and internal bias; must connect to clean analog ground plane |
| OUT (Pin 6) | Precision reference output | Delivers 4.096V ±2mV; drives ADC REF inputs, DAC references, or op-amp bias networks directly |
| N.C. (Pins 1,3,5,7,8) | No internal connection | Must remain unconnected on PCB; no routing or thermal relief required |
Key Features
| Feature | Design Value |
|---|---|
| Laser-trimmed thin-film resistors | Enables ±2mV initial accuracy and 5ppm/°C tempco without post-package calibration |
| Internally compensated architecture | Eliminates need for external stabilization capacitor-saves >1mm² board area per device |
| Supply-current independence | ΔIIN/ΔVIN ≤8μA/V ensures consistent battery drain across input voltage sag |
| Low-output-impedance design | Stable with 1μF capacitive loads-supports fast-switching ADCs without oscillation risk |
| Curvature-correction circuit | Reduces parabolic VOUT vs. T error, improving accuracy across full industrial temperature range |
Applications
| Portable Data Acquisition | High-Resolution ADC Reference |
|---|---|
Use Scenario: Battery-powered handheld DMM or environmental sensor node acquiring 16-bit samples at 1kSPS. IC Role / Device Role / Timing Role: Provides stable 4.096V reference for SAR ADC conversion, rejecting supply ripple during RF transmission bursts. Use Value: 50μVp-p low-frequency noise and 72dB PSRR prevent code flicker; 100μA quiescent current enables >1-year coin-cell operation. | Use Scenario: Precision weigh scale using 24-bit ΣΔ ADC with internal PGA. IC Role / Device Role / Timing Role: Supplies ratiometric reference to ADC and excitation source for load-cell bridge, maintaining gain accuracy. Use Value: ±2mV initial accuracy and 5ppm/°C tempco ensure <0.005% full-scale error across temperature; no external cap simplifies layout. |
| Industrial Process Monitoring | Programmable Logic Controller (PLC) Analog Input Module |
Use Scenario: Remote RTU measuring 4–20mA loop current via precision shunt resistor. IC Role / Device Role / Timing Role: References op-amp I-to-V converter and ADC, enabling sub-LSB linearity over wide ambient range. Use Value: 200mV dropout allows operation from 5V rail with margin; long-term stability of 80ppm/1000hr reduces recalibration frequency. | Use Scenario: Modular PLC backplane with hot-swappable analog input cards requiring isolated, accurate voltage references. IC Role / Device Role / Timing Role: Local reference for each channel's ADC, decoupled from shared backplane power noise. Use Value: SO-8 footprint enables dense channel count; 110mA short-circuit current protects against field-wiring faults without latch-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5040AIDR | 4.096V output, 3ppm/°C max tempco, 150μA IQ, SO-8 package | Lower tempco but higher quiescent current; requires 1μF output cap for stability | Prefer when ultimate temperature stability is critical and board area permits capacitor placement |
| ADR4540BRZ | 4.096V output, 3ppm/°C max tempco, 950μA IQ, SO-8 package | Higher precision and lower noise (3.5μVp-p), but 9.5× higher supply current | Choose for lab-grade instrumentation where power is not constrained and noise floor dominates performance |
Compared with REF5040AIDR and ADR4540BRZ, MAX6164AESA offers the lowest quiescent current (100μA) and zero external capacitor requirement-making it optimal for ultra-low-power, space-limited designs where 5ppm/°C tempco meets system accuracy targets.
Availability
MAX6164AESA is available at Aetrix Electronics and suitable for portable instrumentation, high-resolution data acquisition, and industrial process monitoring requiring stable component supply and guaranteed long-term availability.
Supply support for MAX6164AESA 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 communications applications.
The MAX6161–MAX6168 family was engineered specifically for battery-operated, high-performance systems needing low-dropout, micropower voltage references with no external compensation-targeting portable test equipment, precision sensors, and energy-harvesting nodes.
FAQ
What is the maximum load current the MAX6164AESA can source while maintaining specified accuracy?
The MAX6164AESA can source up to 5mA while maintaining its specified load regulation of 0.6–0.9mV/mA. At 5mA output, the total voltage deviation remains within ±4.5mV of nominal 4.096V-well within the ±2mV initial accuracy band when combined with temperature and line effects. This capability allows direct driving of multiple ADC reference inputs or op-amp bias networks without external buffering.
Does the MAX6164AESA require an external output capacitor for stability?
No, the MAX6164AESA does not require an external output capacitor for stability due to its internally compensated architecture. The device remains stable with capacitive loads up to 1μF, and many applications-including space-constrained portable designs-operate reliably with no output capacitor. Adding a 0.1–1μF ceramic capacitor improves transient response during step-load changes but is optional per the datasheet.
What is the minimum input voltage required for the MAX6164AESA to regulate at full accuracy?
The MAX6164AESA requires a minimum input voltage of VOUT + 200mV = 4.296V to maintain full accuracy under all conditions, including 1mA load and worst-case temperature. Dropout voltage is specified as ≤200mV at 1mA, meaning regulation degrades beyond this point. For robust operation across voltage sag and temperature extremes, a 4.5V minimum supply is recommended.
How does the MAX6164AESA compare to shunt voltage references in terms of power efficiency?
The MAX6164AESA draws only 100–120μA quiescent current independent of input voltage, whereas shunt references require a series resistor sized for worst-case load plus headroom-wasting current continuously. In a 5V system powering a 2mA load, a shunt reference may draw >3mA total, while MAX6164AESA draws just ~100μA-reducing power dissipation by >95% and extending battery life significantly.
Is the MAX6164AESA pin-compatible with other members of the MAX6161–MAX6168 family?
Yes, all MAX6161–MAX6168 variants-including MAX6164AESA-share identical 8-pin SO package footprints and pin assignments (IN, GND, OUT, N.C.). Engineers can substitute between output voltages (e.g., 2.5V, 4.096V, 5V) without PCB layout changes, enabling flexible BOM management and design reuse across product families with differing reference voltage needs.
MAX6164AESA 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:
- 5 mA
- Tolerance:
- ±0.05%
- Temperature Coefficient:
- 5ppm/°C
- Noise - 0.1Hz to 10Hz:
- 50µVp-p
- Noise - 10Hz to 10kHz:
- 50µVrms
- Voltage - Input:
- 4.296V ~ 12.6V
- Current - Supply:
- 120µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX6164AESA FAQ
1.How can I place an order for MAX6164AESA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6164AESA 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 MAX6164AESA reliable?
The price and inventory of MAX6164AESA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6164AESA is usually 5 days.
3.What payment methods are accepted for MAX6164AESA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6164AESA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6164AESA?
MAX6164AESA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6164AESA 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 MAX6164AESA?
For technical support, including MAX6164AESA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6164AESA requirements.
6.How does Aetrix verify that MAX6164AESA is sourced from the original manufacturer or authorized distributors?
All MAX6164AESA 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 MAX6164AESA meets industry standards.
7.What is the process for return or replacement of MAX6164AESA?
All MAX6164AESA units undergo pre-shipment inspection (PSI). If there is an issue with MAX6164AESA, 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 MAX6164AESA part is unused and in its original packaging.
Return procedure for MAX6164AESA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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