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Analog Devices Inc./Maxim Integrated MAX6164BESA+T
- Part No.:
- MAX6164BESA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6164BESA+T.pdf
- Description:
- IC VREF SERIES 0.12% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,752
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Product details
Overview
The MAX6164BESA+T from Maxim Integrated is a precision, low-dropout, micropower series voltage reference delivering a stable 4.096V output with ±5mV initial accuracy and 4ppm/°C to 10ppm/°C max temperature coefficient over -40°C to +85°C. It sources up to 5mA, sinks 2mA, operates from VOUT + 0.2V to 12.6V, and features 200mV max dropout at 1mA - ideal for high-accuracy ADC biasing in portable instrumentation.
For engineers reviewing the MAX6164BESA+T datasheet, MAX6164BESA+T pinout, MAX6164BESA+T application, or MAX6164BESA+T equivalent, key selection criteria include initial output tolerance, tempco performance under thermal cycling, load regulation (0.6–0.9 mV/mA sourcing), noise (50 µVp-p, 0.1–10 Hz), and dropout behavior at light-to-moderate loads in space-constrained battery-powered systems.
Technical Context
This device uses a proprietary curvature-correction circuit and laser-trimmed thin-film resistors to achieve ultra-low drift. Its BiCMOS process enables internal compensation, eliminating need for external capacitors while maintaining stability with ≥1µF capacitive loads.
As a three-terminal series-mode reference, it draws only 100–120µA quiescent current - virtually supply-voltage independent (≤8µA/V variation) - and avoids the inefficiency of shunt-mode references requiring external bias resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V ±5mV at +25°C - ensures direct compatibility with 12-bit ADCs requiring exact 4.096V full-scale reference. |
| Tempco (TCVOUT) | 4–10 ppm/°C max - guarantees ≤±0.35mV drift across -40°C to +85°C, critical for precision sensor signal chains. |
| Dropout Voltage | 50–200mV at 1mA - enables operation from 4.3V supplies, supporting single-cell Li-ion or regulated 4.5V rails. |
| Load Regulation | 0.6–0.9 mV/mA sourcing - maintains <±2.5mV error across 0–5mA load range, suitable for driving SAR ADC reference inputs and op-amp buffers. |
| Noise (0.1–10Hz) | 50 µVp-p - contributes <0.012 LSB RMS noise to a 12-bit 4.096V system, preserving effective resolution. |
| Ripple Rejection | 72 dB at 120Hz - suppresses AC line ripple on unfiltered DC supplies, reducing post-regulation filtering requirements. |
| Quiescent Current | 100–120 µA typical - extends battery life in always-on portable meters without sacrificing accuracy. |
Pinout & Package
MAX6164BESA+T 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. GND (Pin 4) must be low-impedance; IN (Pin 2) requires local 0.1µF ceramic decoupling; OUT (Pin 6) delivers the precision reference voltage.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 2 (IN) | Input Supply Terminal | Accepts 4.296V–12.6V input; requires 0.1µF ceramic capacitor placed adjacent to pin for optimal line-transient rejection. |
| Pin 4 (GND) | Analog Ground Reference | Primary return path for reference output and internal bandgap core; must connect to clean analog ground plane with minimal trace inductance. |
| Pin 6 (OUT) | Precision Reference Output | Delivers 4.096V ±5mV; capable of sourcing 5mA or sinking 2mA; stable without external capacitor but benefits from ≥0.1µF for transient load step response. |
| Pins 1,3,5,7,8 | No Connection | Not bonded or connected internally; may be left floating or tied to GND for mechanical stability - no electrical function. |
Key Features
| Feature | Design Value |
|---|---|
| Laser-trimmed thin-film resistors | Enable ±5mV initial accuracy and 4–10 ppm/°C tempco without external calibration or trimming components. |
| Internally compensated architecture | Eliminates need for external compensation capacitor - saves PCB area and reduces BOM count in compact designs. |
| Stable with ≥1µF capacitive loads | Supports direct connection to ADC reference inputs and op-amp buffers without oscillation risk, even with long traces or layout parasitics. |
| Supply-current independence | Draws only 100–120µA across full 4.296–12.6V input range - simplifies power budgeting and improves efficiency vs. shunt references. |
| Low-output impedance & fast settling | Turn-on settling time of 190µs to 0.1% with 50pF load - enables rapid power-up in wake-on-event systems like handheld DMMs. |
Applications
| Digital Multimeters (DMMs) | Portable Gas Detectors |
|---|---|
Use Scenario: High-resolution 5½-digit DMM requiring stable 4.096V reference for 12-bit ADC full-scale calibration and autoranging. IC Role / Device Role / Timing Role: Primary voltage reference source for successive-approximation register (SAR) ADC, directly setting measurement accuracy and repeatability. Use Value: ±5mV initial accuracy and 10ppm/°C max tempco ensure <±0.02% reading error across operating temperature, meeting Class II metrology standards. | Use Scenario: Battery-powered gas sensor node with electrochemical cell output amplified and digitized via low-power microcontroller ADC. IC Role / Device Role / Timing Role: Precision excitation and reference source for analog front-end, enabling accurate ppm-level gas concentration calculation. Use Value: 100µA quiescent current and 200mV dropout allow operation from partially discharged 3.7V Li-ion cells while maintaining <1LSB error in 12-bit conversion. |
| Handheld Oscilloscope Probes | Industrial Data Loggers |
Use Scenario: Active 10× oscilloscope probe with integrated signal conditioning and ADC digitization for field diagnostics. IC Role / Device Role / Timing Role: Reference voltage for on-probe ADC and offset calibration DAC, ensuring consistent vertical scaling across probe units. Use Value: 50 µVp-p low-frequency noise prevents baseline drift during slow-sweep measurements, preserving DC accuracy in millivolt-range signals. | Use Scenario: Ruggedized environmental logger recording temperature, humidity, and pressure using multiple sensors and a low-power MCU. IC Role / Device Role / Timing Role: Shared reference for multi-channel SAR ADC and internal voltage monitor, enabling ratiometric sensor readings and supply health checks. Use Value: Load regulation of 0.6–0.9 mV/mA ensures consistent reference voltage across varying ADC channel activation states, eliminating channel-to-channel gain mismatch. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5040IDR | 4.096V, ±0.5mV initial accuracy, 3ppm/°C max tempco, 1.2mA quiescent current, SO-8 package | Higher accuracy and lower drift, but 12× higher supply current limits battery life in ultra-low-power designs | Select REF5040IDR when absolute long-term stability and sub-ppm drift dominate over quiescent power; avoid if >100µA supply budget is violated. |
| ADR444BRZ | 4.096V, ±1.5mV initial accuracy, 3ppm/°C max tempco, 750µA quiescent current, SO-8 package | Lower noise (3.5µVRMS, 10Hz–10kHz), better PSRR (110dB), but higher IQ and cost | Choose ADR444BRZ for high-speed data acquisition where wideband noise and ripple rejection are critical; not optimal for multi-year battery operation. |
Compared with REF5040IDR and ADR444BRZ, the MAX6164BESA+T trades minor initial accuracy and tempco for ultra-low 100µA quiescent current - making it uniquely suited for multi-year battery-powered instrumentation where power efficiency and SO-8 footprint are non-negotiable.
Availability
MAX6164BESA+T is available at Aetrix Electronics and suitable for portable instrumentation, battery-powered test equipment, and industrial data loggers requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for MAX6164BESA+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 high-performance analog, mixed-signal, and power-management ICs for demanding industrial, medical, and communications applications.
The MAX6161–MAX6168 family was engineered specifically for precision, low-power, low-dropout voltage referencing in space- and energy-constrained systems - emphasizing micropower operation, internal compensation, and guaranteed performance across extended temperature ranges.
FAQ
What is the maximum load current the MAX6164BESA+T can source while maintaining specified accuracy?
The MAX6164BESA+T can source up to 5mA while maintaining its specified load regulation of 0.6–0.9 mV/mA. At full 5mA output, this results in ≤±4.5mV deviation from nominal 4.096V - well within the ±5mV initial accuracy band. Sourcing beyond 5mA is not characterized and may degrade regulation or cause thermal drift.
Does the MAX6164BESA+T require an external output capacitor for stability?
No, the MAX6164BESA+T does not require an external output capacitor for stability due to its internally compensated design. It remains stable with capacitive loads from 0 to ≥1µF. However, adding ≥0.1µF improves transient response during load steps - especially beneficial when driving ADC reference inputs or op-amp buffers with dynamic current demands.
How does the MAX6164BESA+T's dropout voltage affect its use with a 4.2V lithium-ion battery?
The MAX6164BESA+T has a maximum dropout voltage of 200mV at 1mA load. With a 4.2V battery, it can maintain regulation down to 4.096V + 0.2V = 4.296V - meaning it will cease regulated operation once the battery discharges below ~4.3V. For full discharge utilization, pair with a low-quiescent boost converter or select a reference with <100mV dropout.
Can the MAX6164BESA+T be used in place of the MAX6164AESA+T in an existing design?
Yes, the MAX6164BESA+T is pin-compatible and functionally identical to the MAX6164AESA+T except for relaxed initial accuracy (±5mV vs. ±2mV) and higher tempco (4–10 ppm/°C vs. 2–5 ppm/°C). If the application tolerates ±5mV offset and wider thermal drift, substitution is valid without layout changes - but verify system-level accuracy budget before replacement.
What is the long-term stability specification for the MAX6164BESA+T, and how is it measured?
The MAX6164BESA+T exhibits 80 ppm/1000hr long-term stability at +25°C, measured as output voltage drift after 1000 hours of continuous operation under nominal conditions. This value reflects parametric shift due to silicon aging and package stress relaxation - critical for applications requiring recalibration intervals exceeding one year, such as field-deployed environmental monitors.
MAX6164BESA+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):
- 4.096V
- Voltage - Output (Max):
- -
- Current - Output:
- 5 mA
- Tolerance:
- ±0.12%
- Temperature Coefficient:
- 10ppm/°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
MAX6164BESA+T FAQ
1.How can I place an order for MAX6164BESA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6164BESA+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 MAX6164BESA+T reliable?
The price and inventory of MAX6164BESA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6164BESA+T is usually 5 days.
3.What payment methods are accepted for MAX6164BESA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6164BESA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6164BESA+T?
MAX6164BESA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6164BESA+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 MAX6164BESA+T?
For technical support, including MAX6164BESA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6164BESA+T requirements.
6.How does Aetrix verify that MAX6164BESA+T is sourced from the original manufacturer or authorized distributors?
All MAX6164BESA+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 MAX6164BESA+T meets industry standards.
7.What is the process for return or replacement of MAX6164BESA+T?
All MAX6164BESA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6164BESA+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 MAX6164BESA+T part is unused and in its original packaging.
Return procedure for MAX6164BESA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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