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Analog Devices Inc./Maxim Integrated MAX6133AASA41+T
- Part No.:
- MAX6133AASA41+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6133AASA41+T.pdf
- Description:
- IC VREF SERIES 0.04% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,921
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Product details
Overview
MAX6133AASA41+T from Maxim Integrated is a high-precision, low-power, low-dropout series voltage reference delivering 4.096V output with ±0.04% initial accuracy (max), 3ppm/°C temperature coefficient (max), and 200mV maximum dropout voltage. It operates from 4.2V to 12.6V supply, draws only 45µA quiescent current at +25°C, and supports up to 15mA source current - ideal for precision ADC/DAC biasing in battery-powered instrumentation.
For engineers reviewing the MAX6133AASA41+T datasheet, MAX6133AASA41+T pinout, MAX6133AASA41+T application, or MAX6133AASA41+T equivalent, this page delivers verified specifications, SO-8 package layout, real-world load/line regulation behavior, noise performance (32µVP-P, 0.1Hz–10Hz), and validated alternatives for portable, industrial, and communication systems requiring stable 4.096V references.
Technical Context
The MAX6133AASA41+T uses bandgap-based series-mode architecture with laser-trimmed thin-film resistors and post-package trimming to achieve 0.04% initial accuracy and 3ppm/°C tempco over –40°C to +125°C. Its low 45µA supply current remains stable across input voltage (4.2V–12.6V), minimizing power loss while enabling direct integration into low-quiescent-current signal chains.
It delivers 4.096V output with guaranteed load regulation of ≤0.08mV/mA (–100µA to +15mA) and line regulation of ≤40µV/V, supporting precision applications where supply ripple or load transients must not perturb reference stability. Thermal hysteresis is limited to 120ppm, and long-term stability is 40ppm after 1000 hours in SO package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V ±0.04% (max) at +25°C - enables exact 12-bit full-scale alignment in 4.096V-referenced ADCs/DACs |
| Tempco | 3ppm/°C (max), –40°C to +125°C - ensures ≤±0.5 LSB drift over full industrial range for 16-bit systems |
| Dropout Voltage | 200mV (max) at 10mA - allows operation from 4.2V supply with 4.096V output, minimizing headroom loss |
| Quiescent Current | 45µA (typ) at +25°C - supports multi-year battery life in handheld meters and sensor nodes |
| Output Noise | 32µVP-P (0.1Hz–10Hz) - preserves SNR in high-resolution data acquisition without external filtering |
| Load Regulation | 0.08mV/mA (max), –100µA to +15mA - maintains reference integrity during dynamic DAC loading |
| Line Regulation | 40µV/V (max), 4.2V–12.6V - rejects supply ripple in unregulated or switching-derived rails |
Pinout & Package
MAX6133AASA41+T is housed in an 8-pin SO (SOIC-N) package per JEDEC MS-012, 150-mil body width, with standard gull-wing leads. Pin 1 is marked by a beveled corner or dot; pins are numbered counterclockwise.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 7 | No Connection (N.C.) | Internally unconnected - must remain floating or tied to GND; no electrical function |
| 2 | IN | Positive supply input - accepts 4.2V to 12.6V; requires 0.1µF ceramic bypass capacitor near pin |
| 4 | GND | Analog ground reference - common return for IN, OUT, and load; separate from digital ground if possible |
| 5, 8 | I.C. | Internally connected - do not route externally; internal bond wires only |
| 6 | OUT | Precision 4.096V reference output - requires ≥0.1µF ceramic capacitor to GND for stability; drives up to 15mA |
Key Features
| Feature | Design Value |
|---|---|
| Low-tempco SO package | 3ppm/°C max over –40°C to +125°C - meets tight drift requirements for industrial control loops |
| Ultra-low quiescent current | 45µA typ at +25°C - enables always-on reference in energy-harvesting and coin-cell systems |
| High output drive capability | 15mA source current - directly powers ADC reference inputs, op-amp bias networks, and small DACs |
| Stable with wide capacitive loads | 0.1µF to 100µF output capacitance - accommodates layout variations and improves transient response |
| Laser-trimmed initial accuracy | ±0.04% max at +25°C - eliminates system-level calibration for many 14-bit applications |
Applications
| Portable Precision DMMs | Industrial 4–20mA Transmitters |
|---|---|
|
Use Scenario: Handheld digital multimeters requiring 4.096V reference for 16-bit SAR ADCs and auto-ranging front ends. IC Role / Device Role / Timing Role: Primary voltage reference for ADC conversion and internal calibration circuitry. Use Value: 3ppm/°C tempco and 0.04% initial accuracy enable <1 LSB error over –10°C to +50°C operating range without recalibration. |
Use Scenario: Loop-powered 4–20mA transmitters in process control, using 4.096V reference for current-sense and DAC scaling. IC Role / Device Role / Timing Role: Stable excitation reference for precision shunt regulators and 12-/14-bit DACs driving current output stages. Use Value: 200mV dropout and 45µA quiescent current allow operation from minimal loop headroom (<4.5V) while maintaining 16-bit linearity. |
| Medical Sensor Signal Chains | Communications Baseband ICs |
|
Use Scenario: Low-power ECG/EEG front ends where reference noise directly impacts SNR and diagnostic resolution. IC Role / Device Role / Timing Role: Low-noise analog reference for PGA gain-setting and ADC biasing in battery-operated monitors. Use Value: 32µVP-P (0.1Hz–10Hz) noise floor preserves >90dB SNR in 24-bit delta-sigma converters without additional filtering. |
Use Scenario: Reference for high-speed DACs and ADCs in LTE/5G small-cell baseband processors requiring stable 4.096V scaling. IC Role / Device Role / Timing Role: Precision DC reference for mixed-signal SoCs handling I/Q modulation/demodulation paths. Use Value: 40µV/V line regulation and 0.08mV/mA load regulation ensure <0.001% reference deviation during RF burst transmission cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR444BRZ | 4.096V, ±0.04% initial accuracy, 3ppm/°C, but 500µA quiescent current and SO-8 package | Higher power draw limits use in battery-powered devices; superior PSRR (−100dB @ 1kHz) | Select when ultra-low noise and high PSRR outweigh quiescent current constraints |
| REF5040AIDR | 4.096V, ±0.05% initial accuracy, 3ppm/°C, 950µA quiescent current, SO-8 | Higher supply current and larger thermal footprint; better long-term stability (15ppm/1000h) | Prefer for mains-powered test equipment where aging performance dominates power budget |
Compared with ADR444BRZ and REF5040AIDR, MAX6133AASA41+T uniquely combines 45µA quiescent current, 3ppm/°C tempco, and 0.04% accuracy in SO-8 - making it optimal for space-constrained, battery-operated precision systems where every microamp counts.
Availability
MAX6133AASA41+T is available at Aetrix Electronics and suitable for portable instrumentation, industrial 4–20mA transmitters, medical sensor modules, and communications baseband designs requiring stable component supply with guaranteed long-term availability.
Supply support for MAX6133AASA41+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, mixed-signal, and power management ICs for demanding industrial, automotive, and communications applications.
The MAX6133 family was engineered specifically for low-power, high-accuracy voltage referencing in portable and harsh-environment systems - emphasizing ultra-low quiescent current, tight tempco, and robust load regulation in compact SO and µMAX packages.
FAQ
What is the maximum load current supported by MAX6133AASA41+T?
MAX6133AASA41+T supports up to +15mA output source current and –100µA sink current, with load regulation specified at ≤0.08mV/mA over that range. This allows direct driving of ADC reference inputs, op-amp bias networks, and small DACs without external buffers - confirmed in Electrical Characteristics Table for VOUT = 4.096V.
Does MAX6133AASA41+T require an input bypass capacitor?
Yes - a 0.1µF ceramic capacitor is recommended between IN and GND, placed as close as possible to the MAX6133AASA41+T pins to ensure optimal line-transient performance. The device remains functional without it when transients are not critical, but input decoupling is required for full specification compliance per Applications Information section.
What is the minimum input voltage needed for MAX6133AASA41+T to regulate at 4.096V?
The minimum input voltage is 4.2V, derived from the dropout voltage specification (200mV max at 10mA) plus nominal output (4.096V). This ensures regulation across temperature and load - explicitly stated in the Electrical Characteristics table for MAX6133_41 under "Input Voltage Range".
Can MAX6133AASA41+T be used with output capacitances larger than 0.1µF?
Yes - MAX6133AASA41+T is stable with output capacitances from 0.1µF up to 100µF, including ceramic, tantalum, and electrolytic types. Larger values improve transient response and reduce overshoot during load steps, as verified in Typical Operating Characteristics (toc13–toc16) and Applications Information.
Is MAX6133AASA41+T qualified for automotive temperature range?
No - MAX6133AASA41+T is rated for –40°C to +125°C operation, which meets industrial grade but not AEC-Q100 automotive qualification. Its tempco, long-term stability, and thermal hysteresis (120ppm) are specified across this range, but no automotive reliability testing or qualification documentation is provided in the datasheet.
MAX6133AASA41+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:
- 15 mA
- Tolerance:
- ±0.04%
- Temperature Coefficient:
- 7ppm/°C
- Noise - 0.1Hz to 10Hz:
- 32µVp-p
- Noise - 10Hz to 10kHz:
- 22µVrms
- Voltage - Input:
- 4.2V ~ 12.6V
- Current - Supply:
- 85µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX6133AASA41+T FAQ
1.How can I place an order for MAX6133AASA41+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6133AASA41+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 MAX6133AASA41+T reliable?
The price and inventory of MAX6133AASA41+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6133AASA41+T is usually 5 days.
3.What payment methods are accepted for MAX6133AASA41+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6133AASA41+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6133AASA41+T?
MAX6133AASA41+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6133AASA41+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 MAX6133AASA41+T?
For technical support, including MAX6133AASA41+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6133AASA41+T requirements.
6.How does Aetrix verify that MAX6133AASA41+T is sourced from the original manufacturer or authorized distributors?
All MAX6133AASA41+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 MAX6133AASA41+T meets industry standards.
7.What is the process for return or replacement of MAX6133AASA41+T?
All MAX6133AASA41+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6133AASA41+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 MAX6133AASA41+T part is unused and in its original packaging.
Return procedure for MAX6133AASA41+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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