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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:218
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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 output stability under load transients, ultra-low supply current variation (<8μA/V), dropout performance at 1mA (≤200mV), and compatibility with 1μF capacitive loads without oscillation.
Technical Context
The MAX6164AESA+ employs a proprietary curvature-correction circuit and laser-trimmed thin-film resistors to achieve its 5ppm/°C max TCVOUT and ±2mV initial accuracy. Its BiCMOS process enables internal compensation, eliminating need for external stabilization capacitance.
As a three-terminal series reference, it delivers supply-current independence from input voltage (ΔIIN/ΔVIN ≤ 8μA/V), supports sourcing/sinking load currents, and maintains regulation down to 200mV dropout at 1mA-enabling operation in low-headroom battery-powered systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V ±2mV at +25°C - ensures direct compatibility with 12-bit ADC full-scale ranges requiring exact 4.096V reference. |
| Temp Coefficient | 5ppm/°C (max) - guarantees ≤±0.42mV drift over -40°C to +85°C ambient, critical for precision sensor signal chains. |
| Dropout Voltage | 200mV (max) at 1mA load - allows operation from 4.296V supply, supporting single-cell Li-ion or regulated 4.5V rails. |
| Quiescent Current | 100μA (typ), ≤120μA (max) - enables multi-year battery life in always-on portable DMMs and data loggers. |
| Noise (0.1–10Hz) | 50μVp-p - contributes <0.012% of full-scale error in 4.096V-referenced 16-bit ADCs, preserving effective resolution. |
| Load Regulation | 0.9mV/mA (sourcing) - limits output shift to ≤4.5mV across full 0–5mA load range, maintaining ADC linearity. |
| Ripple Rejection | 72dB at 120Hz - attenuates AC line ripple on supply rails by >4×, protecting reference integrity in noisy environments. |
Pinout & Package
MAX6164AESA+ is housed in an 8-pin SO (Small Outline) package with exposed pad (RoHS-compliant, lead-free). Pins 1, 3, 5, 7, and 8 are No Connect (N.C.), internally unconnected. Functional terminals occupy only pins 2 (IN), 4 (GND), and 6 (OUT).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 2 - IN | Input voltage supply terminal | Accepts 4.296V–12.6V; must be bypassed with 0.1μF ceramic capacitor near pin for optimal line-transient immunity. |
| 4 - GND | Analog ground reference | Low-impedance return path for reference core and load current; requires solid PCB ground plane connection. |
| 6 - OUT | Precision reference output | Delivers regulated 4.096V; stable with 0–1μF capacitive loads; no external compensation required. |
Key Features
| Feature | Design Value |
|---|---|
| Laser-trimmed thin-film resistors | Enable ±2mV initial accuracy and 5ppm/°C tempco without post-package calibration. |
| Internally compensated architecture | Eliminates mandatory external capacitor-reduces BOM count and saves ≥2mm² PCB area in space-constrained designs. |
| Supply-current independence | ΔIIN/ΔVIN ≤ 8μA/V ensures consistent 100μA draw across full 4.3–12.6V input range, simplifying power budgeting. |
| Low-output-impedance drive | Supports 5mA sourcing and 2mA sinking while maintaining <0.9mV/mA load regulation-directly drives ADC reference inputs and op-amp bias networks. |
| Stable with 1μF capacitive loads | Enables use of bulk ceramic or tantalum output caps for improved PSRR and transient response without risk of oscillation. |
Applications
| High-Resolution Data Acquisition | Portable Precision Instrumentation |
|---|---|
Use Scenario: 16-bit SAR ADC in handheld digital multimeter (DMM) measuring DC voltage with 100μV resolution. IC Role / Device Role / Timing Role: Primary voltage reference establishing full-scale range for ADC conversion. Use Value: 4.096V output matches 212 × 1mV LSB scaling; ±2mV initial error contributes <0.05% gain error, meeting Class II DMM accuracy requirements. | Use Scenario: Battery-powered environmental sensor node logging temperature/humidity with 24-bit sigma-delta ADC. IC Role / Device Role / Timing Role: Stable excitation and reference source for precision analog front-end (AFE). Use Value: 5ppm/°C tempco limits reference drift to <0.35mV over operating range, preserving calibrated measurement accuracy without software compensation. |
| Industrial Process Monitoring | Medical Diagnostic Equipment |
Use Scenario: 4–20mA loop-powered transmitter conditioning thermocouple signals in factory automation. IC Role / Device Role / Timing Role: Reference for DAC generating precise loop current and for ADC digitizing sensor inputs. Use Value: 200mV dropout enables operation from 4.5V loop supply; 100μA quiescent current minimizes burden on loop power budget. | Use Scenario: Portable ECG monitor digitizing microvolt-level cardiac signals with low-noise amplification. IC Role / Device Role / Timing Role: Low-noise reference for ADC and analog signal chain biasing. Use Value: 50μVp-p (0.1–10Hz) noise adds <0.0012% RMS error to 4.096V reference, preserving dynamic range for sub-μV signal fidelity. |
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, 50μVp-p noise, but requires 1.5mA supply current and external 10μF output cap for stability. | Better tempco/noise, but higher power and board area penalty; unsuitable for ultra-low-power or space-critical designs. | Select REF5040AIDR only when ultimate long-term stability and lower noise outweigh battery life and layout constraints. |
| ADR4540BRZ | 4.096V output, 3ppm/°C max tempco, 4.5μVRMS (10Hz–10kHz), but 500μA quiescent current and 350mV dropout at 10mA. | Superior noise performance and tighter tempco, yet higher dropout and supply current limit use in low-voltage, low-power systems. | Choose ADR4540BRZ for lab-grade equipment where noise dominates error budget, not portable or energy-harvested devices. |
Compared with REF5040AIDR and ADR4540BRZ, MAX6164AESA+ offers the lowest quiescent current (100μA) and smallest dropout (200mV), making it uniquely suited for battery-operated instruments requiring multi-year runtime and operation from marginal supply voltages-without sacrificing ±2mV accuracy or 5ppm/°C stability.
Availability
MAX6164AESA+ is available at Aetrix Electronics and suitable for portable instrumentation, industrial sensor transmitters, and medical diagnostic devices requiring stable component supply, guaranteed RoHS compliance, and extended temperature support (-40°C to +85°C).
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 high-accuracy, low-power voltage referencing in space- and energy-constrained systems-emphasizing micropower operation, low dropout, and elimination of external compensation components.
FAQ
What is the maximum load current the MAX6164AESA+ can source while maintaining specification?
The MAX6164AESA+ is specified to source up to 5mA while maintaining its load regulation of ≤0.9mV/mA and output voltage accuracy within ±2mV. At 5mA, total output shift remains ≤4.5mV-well within the ±2mV initial tolerance band when combined with thermal drift. Exceeding 5mA may degrade regulation and increase dropout voltage beyond the 200mV max spec.
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. It remains stable with 0–1μF capacitive loads. Adding a 0.1–1μF ceramic capacitor improves transient response and reduces overshoot during load steps, but is optional-not mandatory for basic regulation.
What is the minimum input voltage required for the MAX6164AESA+ to regulate at full 4.096V output?
The MAX6164AESA+ requires a minimum input voltage of VOUT + 200mV = 4.296V to maintain regulation at 1mA load, per the 200mV max dropout specification. At lighter loads, dropout decreases; at heavier loads or elevated temperatures, input may need to exceed 4.296V to sustain full accuracy and avoid foldback.
How does the MAX6164AESA+ compare to shunt voltage references in terms of supply efficiency?
Unlike shunt references-which waste current through a series resistor and draw fixed bias current regardless of load-the MAX6164AESA+ draws only ~100μA quiescent current, independent of load. Its supply current increases only when sourcing load current, maximizing battery life and minimizing heat in portable systems.
Is the MAX6164AESA+ compatible with 12-bit and 16-bit analog-to-digital converters?
Yes, the MAX6164AESA+ is explicitly designed for ADC interfacing: its 4.096V output matches common 12-bit (1mV/LSB) and 16-bit (62.5μV/LSB) full-scale ranges. With ±2mV initial error, 5ppm/°C drift, and 50μVp-p low-frequency noise, it supports effective resolution up to 16 bits in well-designed systems.
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:
- Active
- 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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