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Analog Devices Inc./Maxim Integrated MAX9031AXK+TG05
- Part No.:
- MAX9031AXK+TG05
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- -
- Datasheet:
-
MAX9031AXK+TG05.pdf
- Description:
- INTEGRATED CIRCUIT
- Quantity:
- Payment:
- Shipping:
Inventory:4,417
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Product details
Overview
MAX9031AXK+TG05 from Maxim Integrated is a single, rail-to-rail output comparator optimized for low-power, single-supply operation from +2.5V to +5.5V, featuring 188ns propagation delay, 35µA supply current per comparator, and 4mV internal hysteresis - deployed in battery-powered portable systems and sensor signal detection circuits.
For engineers reviewing the MAX9031AXK+TG05 datasheet, MAX9031AXK+TG05 pinout, MAX9031AXK+TG05 application, or MAX9031AXK+TG05 equivalent, this page delivers verified electrical parameters, SC70-5 package mapping, functional role in threshold detection, and validated alternative comparators for design continuity.
Technical Context
The MAX9031AXK+TG05 implements a CMOS input stage with rail-to-rail output swing, enabling full dynamic range utilization across its +2.5V to +5.5V single-supply range. Its input common-mode voltage extends from VSS to (VDD – 1.1V), supporting wide-swing sensor interfaces without level-shifting.
Internal 4mV hysteresis eliminates oscillation on slow-moving inputs, while propagation delay remains stable at 188ns (typ) under 15pF load and 100mV overdrive. Output switching current is minimized to suppress power-supply glitches during transitions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.5V to +5.5V single supply - supports direct Li-ion and 3.3V system rail interfacing without regulation. |
| Propagation Delay | 188ns typical - enables reliable timing-critical detection in digital line receivers and photodiode preamp outputs. |
| Supply Current | 35µA per comparator - allows continuous operation in multi-year battery-powered applications. |
| Hysteresis | 4mV built-in - provides noise immunity without external feedback components in threshold discriminators. |
| Input Offset Voltage | ±1mV (min), ±5mV (max) - ensures accurate trip-point stability across industrial temperature range (–40°C to +125°C). |
| Output Swing | Rail-to-rail - delivers full logic-high/low compatibility with 1.8V, 3.3V, and 5V digital controllers. |
| Common-Mode Range | VSS to (VDD – 1.1V) - accommodates ground-referenced sensors and high-side current sense signals. |
Pinout & Package
MAX9031AXK+TG05 is housed in a 5-pin SC70 package (outline 21-0076), footprint-compatible with SOT23-5 but 30% smaller - ideal for space-constrained portable PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN− | Inverting input | Accepts reference or inverted signal path; supports common-mode down to VSS. |
| 2 - VSS | Negative supply / ground | Must be bypassed with 0.1µF capacitor to minimize noise coupling into sensitive inputs. |
| 3 - IN+ | Noninverting input | Primary signal input for threshold comparison; matched bias current minimizes offset error. |
| 4 - OUT | Comparator output | Rail-to-rail CMOS output capable of sourcing/sinking 4mA with <400mV drop at full load. |
| 5 - VDD | Positive supply | Single-supply input; PSRR ≥72dB ensures stable operation despite rail ripple. |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal on overdriven inputs | Prevents false triggering when input exceeds common-mode range - critical for fault-tolerant sensor monitoring. |
| Low 35µA quiescent current | Enables always-on wake-up circuitry in ultra-low-power IoT endpoints without compromising response latency. |
| 188ns propagation delay with 15pF load | Supports >1MHz signal edge detection in photodiode preamps and digital line receivers. |
| 4mV internal hysteresis | Eliminates need for external positive feedback resistors in basic threshold detectors - reduces BOM count and layout area. |
| Input bias current ≤80nA | Minimizes loading error on high-impedance sources such as thermistors and piezoelectric sensors. |
Applications
| Battery-Powered Portable Systems | Sensor Signal Detection |
|---|---|
Use Scenario: Monitoring battery voltage against low-battery cutoff thresholds in handheld medical devices and wearables. IC Role / Device Role / Timing Role: Single comparator performing precise voltage window detection with rail-to-rail output compatible with MCU GPIO. Use Value: 35µA supply current extends battery life; 4mV hysteresis prevents chatter near trip point during gradual discharge. |
Use Scenario: Converting analog output from ambient light or temperature sensors into clean digital logic levels. IC Role / Device Role / Timing Role: Threshold discriminator converting slow-moving sensor signals into TTL/CMOS-compatible pulses. Use Value: Input common-mode range extending to VSS enables direct connection to ground-referenced sensors; no level-shifting required. |
| Photodiode Preamps | Digital Line Receivers |
Use Scenario: Amplifying and digitizing weak photocurrent pulses in optical smoke detectors or pulse oximeters. IC Role / Device Role / Timing Role: High-speed comparator capturing fast photodiode transients with minimal propagation delay jitter. Use Value: 188ns propagation delay ensures sub-microsecond response to light pulses; rail-to-rail output drives downstream logic directly. |
Use Scenario: Recovering digital data from attenuated or noisy communication lines in automotive body control modules. IC Role / Device Role / Timing Role: Data slicer comparing incoming signal to adaptive or fixed reference voltage. Use Value: No phase reversal guarantees deterministic output even during signal overshoot; 72dB PSRR rejects supply noise coupling into decision threshold. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV3701IDBVR | Higher 65µA supply current; 360ns propagation delay; no built-in hysteresis. | Requires external hysteresis resistors; less suitable for ultra-low-power or noise-prone environments. | Select when cost sensitivity outweighs power/performance trade-offs and board space permits external components. |
| LMV7215M5X | Lower 25µA supply current but only 125ns propagation delay; 6mV hysteresis; operates down to +2.7V. | Marginally higher minimum supply voltage limits use with 2.5V rails; tighter hysteresis improves noise margin. | Prefer for 2.7V+ systems prioritizing lowest possible current draw where 125ns speed suffices. |
Compared with TLV3701IDBVR and LMV7215M5X, MAX9031AXK+TG05 uniquely balances 35µA current, 188ns speed, and integrated 4mV hysteresis in a 5-pin SC70 - making it optimal for compact, battery-sensitive designs requiring robust noise immunity without external components.
Availability
MAX9031AXK+TG05 is available at Aetrix Electronics and suitable for battery-powered portable systems, sensor signal detection, and photodiode preamp circuits requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX9031AXK+TG05 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 is a U.S.-based semiconductor company specializing in analog and mixed-signal ICs for power, sensing, and interface applications.
The MAX903x family was designed specifically for ultra-low-power, space-constrained single-supply comparator applications - targeting portable instrumentation, automotive subsystems, and industrial sensor nodes.
FAQ
What is the operating temperature range for MAX9031AXK+TG05?
The MAX9031AXK+TG05 is specified for continuous operation from –40°C to +125°C. This automotive-grade temperature range is guaranteed by design and validated across all electrical parameters including propagation delay, supply current, and input offset voltage - making MAX9031AXK+TG05 suitable for under-hood automotive sensors and industrial field equipment.
Does MAX9031AXK+TG05 include internal hysteresis, and how does it affect circuit design?
Yes, MAX9031AXK+TG05 includes 4mV of built-in hysteresis, defined as the difference between rising and falling input trip points. This eliminates oscillation on slow-moving or noisy inputs - allowing MAX9031AXK+TG05 to operate reliably without external positive-feedback resistors in basic threshold detection circuits, reducing component count and PCB area.
What is the maximum capacitive load MAX9031AXK+TG05 can drive without instability?
MAX9031AXK+TG05 is characterized for stable operation with up to 150pF of capacitive load, as confirmed by the "Maximum Capacitive Load" specification in the datasheet. Driving loads beyond 150pF may cause sustained oscillations or increased propagation delay - so for higher-capacitance traces or bus interfaces, a series resistor or buffer stage is recommended alongside MAX9031AXK+TG05.
Can MAX9031AXK+TG05 be used with a 2.5V supply, and what performance trade-offs occur?
Yes, MAX9031AXK+TG05 is fully specified down to +2.5V single supply. At 2.5V, supply current remains at 35µA (typ), propagation delay increases slightly to ~220ns (per typical curves), and output swing maintains rail-to-rail behavior - confirming MAX9031AXK+TG05's suitability for direct integration with 2.5V microcontrollers and low-voltage sensor front-ends.
Is MAX9031AXK+TG05 pin-compatible with other comparators in the MAX903x family?
No - MAX9031AXK+TG05 uses a 5-pin SC70 package with pinout IN−, VSS, IN+, OUT, VDD. In contrast, MAX9030 (6-pin SC70) adds SHDN, MAX9032 (8-pin) integrates dual channels, and MAX9034 (14-pin) hosts quad functionality. Therefore, MAX9031AXK+TG05 is not pin-compatible with any other MAX903x variant; each requires unique PCB layout and schematic symbol.
MAX9031AXK+TG05 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- -
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- -
- Number of Elements:
- -
- Output Type:
- -
- Voltage - Supply, Single/Dual (±):
- -
- :
- -
- Voltage - Input Offset (Max):
- -
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- -
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
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MAX9031AXK+TG05 FAQ
1.How can I place an order for MAX9031AXK+TG05 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9031AXK+TG05 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 MAX9031AXK+TG05 reliable?
The price and inventory of MAX9031AXK+TG05 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9031AXK+TG05 is usually 5 days.
3.What payment methods are accepted for MAX9031AXK+TG05?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9031AXK+TG05 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9031AXK+TG05?
MAX9031AXK+TG05 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9031AXK+TG05 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 MAX9031AXK+TG05?
For technical support, including MAX9031AXK+TG05 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9031AXK+TG05 requirements.
6.How does Aetrix verify that MAX9031AXK+TG05 is sourced from the original manufacturer or authorized distributors?
All MAX9031AXK+TG05 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 MAX9031AXK+TG05 meets industry standards.
7.What is the process for return or replacement of MAX9031AXK+TG05?
All MAX9031AXK+TG05 units undergo pre-shipment inspection (PSI). If there is an issue with MAX9031AXK+TG05, 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 MAX9031AXK+TG05 part is unused and in its original packaging.
Return procedure for MAX9031AXK+TG05:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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