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Analog Devices Inc./Maxim Integrated MAX40006AUT+T
- Part No.:
- MAX40006AUT+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-6
- Datasheet:
-
MAX40006AUT+T.pdf
- Description:
- IC CMOS 1 CIRCUIT SOT6
- Quantity:
- Payment:
- Shipping:
Inventory:2,053
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Product details
Overview
The MAX40006AUT+T from Maxim Integrated is a micropower, rail-to-rail input/output operational amplifier with active-low shutdown control, optimized for ultra-low-power battery-operated systems. It delivers 300kHz gain-bandwidth, 4.5μA supply current (typ), 1pA input bias current (typ), and operates from 1.7V to 5.5V - enabling precision sensing in portable medical devices and wearable fitness monitors.
For engineers reviewing the MAX40006AUT+T datasheet, MAX40006AUT+T pinout, MAX40006AUT+T application, or MAX40006AUT+T equivalent, this page provides verified electrical specifications, SOT-23-6 package layout, automotive-grade (-40°C to +125°C) operation, shutdown timing behavior, and real-world design trade-offs versus alternatives.
Technical Context
This CMOS op amp uses a parallel n-channel/p-channel input stage to achieve rail-to-rail common-mode range (–0.05V to VDD + 0.05V) and output swing within 5mV of both rails under 100kΩ load. Its unity-gain stability supports capacitive loads up to 30pF without isolation resistance.
The active-low SHDN pin reduces supply current to 100nA (typ) while placing the output in high-impedance state; enable delay is 35μs and shutdown delay is 2μs at VDD = 5.5V. Input offset voltage is ±0.2mV (typ), with drift of 10μV/°C over –40°C to +125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 300kHz - enables stable unity-gain buffering of low-frequency sensor signals without oscillation. |
| Supply Current | 4.5μA (typ) at 3.6V - extends battery life in always-on wearable and portable medical applications. |
| Input Bias Current | 1pA (typ) at +25°C - minimizes error in high-impedance pH, ECG, or photodiode front-ends. |
| Rail-to-Rail I/O | Input range: –0.05V to VDD + 0.05V; output swing: within 5mV of rails (100kΩ load) - maximizes dynamic range in single-supply systems. |
| Shutdown Current | 100nA (typ) - reduces system standby power by >97% versus active mode. |
| Input Offset Voltage | ±0.2mV (typ) - supports <10-bit accuracy in 3.3V ADC interfaces without trimming. |
| Operating Temperature | –40°C to +125°C - qualified for automotive cabin and industrial edge-sensing environments. |
Pinout & Package
MAX40006AUT+T is housed in a 6-pin SOT-23 package (package code U6-1), with 0.95mm pitch, 2.9mm × 1.6mm footprint, and JEDEC MS-012AC outline. Thermal resistance θJA is 230°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for all internal circuitry; must be low-impedance connection to minimize noise coupling. |
| 2 | OUT | Amplifier output node; high-impedance during shutdown; drives capacitive loads ≤30pF stably in unity gain. |
| 3 | IN− | Inverting input; protected by back-to-back diodes; differential input voltage limited to ±(VDD + 0.3V). |
| 4 | SHDN | Active-low shutdown control; logic high (≥0.7×VDD) enables operation; logic low (≤0.3×VDD) disables amplifier. |
| 5 | VDD | Positive supply input; accepts 1.7V–5.5V; requires 0.1μF ceramic bypass capacitor placed adjacent to pin. |
| 6 | IN+ | Noninverting input; ultra-high impedance (>1GΩ); bias current variation negligible across common-mode range. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of 1.7V–5.5V supply range in single-supply configurations, preserving signal headroom in low-voltage systems. |
| Ultra-low 1pA input bias current | Reduces voltage error in high-source-impedance sensor interfaces (e.g., electrochemical sensors, piezoelectric elements) without external guarding. |
| 35μs power-up settling time | Allows rapid wake-from-standby operation in duty-cycled data acquisition systems, minimizing latency after enable assertion. |
| 0.1μA shutdown current | Supports multi-year battery life in intermittently active IoT endpoints by reducing quiescent draw during sleep intervals. |
| Unity-gain stable with 30pF load | Eliminates need for external compensation in compact PCB layouts where trace capacitance approaches 20–30pF. |
Applications
| Portable Medical Sensors | Wearable Fitness Monitors |
|---|---|
|
Use Scenario: Amplifying microvolt-level biopotential signals (e.g., ECG, EMG) from dry electrodes in patch-style monitors. IC Role / Device Role / Timing Role: Precision DC-coupled buffer with rail-to-rail input to capture baseline shifts and low-frequency morphology without clipping. Use Value: 1pA input bias current prevents electrode polarization errors; 4.5μA supply current enables >3-month runtime on coin-cell batteries. |
Use Scenario: Conditioning analog outputs from optical heart-rate sensors (PPG) in wrist-worn trackers. IC Role / Device Role / Timing Role: Transimpedance amplifier front-end with shutdown control synchronized to LED pulse timing. Use Value: Shutdown mode reduces average current to sub-μA level between measurement cycles; rail-to-rail output drives ADC input directly. |
| Handheld Diagnostic Tools | Low-Power Environmental Sensors |
|
Use Scenario: Signal conditioning for portable blood glucose or lactate meters using amperometric biosensors. IC Role / Device Role / Timing Role: Low-drift transducer amplifier with programmable gain stages enabled via external resistors. Use Value: ±0.2mV offset voltage ensures <1% full-scale error at 10mV sensor output; 125°C rating supports sterilization cycles. |
Use Scenario: Amplifying thermistor or gas sensor bridge outputs in battery-powered air quality nodes. IC Role / Device Role / Timing Role: High-impedance voltage follower isolating sensitive resistive elements from ADC sampling transients. Use Value: 300kHz GBW supports fast step response to temperature/humidity changes; 1.7V minimum supply enables direct Li-ion cell operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV8512IDR | Higher 15μA supply current; 1.8V min supply; no shutdown pin; 550kHz GBW | Lacks shutdown control; better for higher-speed, non-battery-constrained signal chains | Select when speed >300kHz is required and shutdown is unnecessary. |
| OPA316IDBVR | 100μA supply current; 10MHz GBW; rail-to-rail I/O; no shutdown; 0.3mV offset | Optimized for precision AC performance, not ultra-low quiescent power | Choose when bandwidth and AC accuracy outweigh battery-life requirements. |
Compared with TLV8512IDR and OPA316IDBVR, the MAX40006AUT+T uniquely balances micropower operation (4.5μA), integrated shutdown, and automotive temperature range - making it irreplaceable in space- and energy-constrained portable medical and wearables where standby current and reliability are primary constraints.
Availability
MAX40006AUT+T is available at Aetrix Electronics and suitable for portable medical devices, wearable fitness monitors, and handheld diagnostic tools requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX40006AUT+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 medical applications.
The MAX40006AUT+T belongs to Maxim's micropower op amp family, engineered specifically for battery-powered instrumentation where ultra-low supply current, rail-to-rail operation, and shutdown capability are mandatory.
FAQ
What is the maximum capacitive load the MAX40006AUT+T can drive in unity-gain configuration?
The MAX40006AUT+T is unity-gain stable with capacitive loads up to 30pF. Driving larger loads (e.g., >30pF) risks instability unless an isolation resistor is added in series with the output. For 10V/V gain configurations, the stable capacitive load increases to 250pF. The MAX40006AUT+T datasheet specifies this limit under "Capacitive Load" in the Electrical Characteristics table.
Does the MAX40006AUT+T require external power-supply decoupling?
Yes - the MAX40006AUT+T requires a 0.1μF ceramic capacitor placed as close as possible to the VDD pin and grounded to minimize supply noise and ensure stable operation. This is explicitly recommended in the "Power-Supply Bypassing and Layout" section of the MAX40006AUT+T datasheet and critical for achieving specified PSRR and noise performance.
What happens to the output of the MAX40006AUT+T during shutdown mode?
During shutdown (SHDN pin driven low), the MAX40006AUT+T output enters a high-impedance state. However, due to internal back-to-back diode protection at the inputs and feedback path leakage, the output may sit at approximately one diode drop below the IN+ voltage in unity-gain buffer configurations - a behavior documented in Figure 4 of the MAX40006AUT+T datasheet.
Is the MAX40006AUT+T pin-compatible with other op amps in the MAX4000x family?
No - the MAX40006AUT+T is not pin-compatible with other members of the MAX4000x family (e.g., MAX40007, MAX40008). Each variant has distinct pin functions and package mappings; only the MAX40006AUT+T uses the SOT-23-6 pinout shown in its Pin Configurations diagram. Always verify pin assignments against the specific MAX40006AUT+T datasheet.
Can the MAX40006AUT+T operate from a single 1.8V lithium coin cell?
Yes - the MAX40006AUT+T operates from 1.7V to 5.5V, making it fully compatible with 1.8V nominal coin cells (e.g., CR2032). At 1.8V, it maintains rail-to-rail input/output operation, 300kHz GBW, and 4.5μA supply current (typ), enabling reliable signal conditioning in ultra-low-voltage portable devices powered directly by primary cells.
MAX40006AUT+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.14V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 300 kHz
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 4.5µA
- Current - Output / Channel:
- 15 mA
- Voltage - Supply Span (Min):
- 1.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX40006AUT+T FAQ
1.How can I place an order for MAX40006AUT+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX40006AUT+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 MAX40006AUT+T reliable?
The price and inventory of MAX40006AUT+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX40006AUT+T is usually 5 days.
3.What payment methods are accepted for MAX40006AUT+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX40006AUT+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX40006AUT+T?
MAX40006AUT+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX40006AUT+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 MAX40006AUT+T?
For technical support, including MAX40006AUT+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX40006AUT+T requirements.
6.How does Aetrix verify that MAX40006AUT+T is sourced from the original manufacturer or authorized distributors?
All MAX40006AUT+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 MAX40006AUT+T meets industry standards.
7.What is the process for return or replacement of MAX40006AUT+T?
All MAX40006AUT+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX40006AUT+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 MAX40006AUT+T part is unused and in its original packaging.
Return procedure for MAX40006AUT+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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