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Analog Devices Inc./Maxim Integrated MAX9032AKA
- Part No.:
- MAX9032AKA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- SOT-23-8
- Datasheet:
-
MAX9032AKA.pdf
- Description:
- IC COMPARATOR 2 GEN PUR SOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:341
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Product details
Overview
MAX9032AKA+T from Maxim Integrated is a dual, rail-to-rail output comparator optimized for single-supply operation from +2.5V to +5.5V, featuring 188ns propagation delay, 35µA per comparator supply current, 4mV internal hysteresis, and input common-mode range extending to within 1.1V of VDD - deployed in battery-powered portable systems and sensor signal detection circuits.
For engineers reviewing the MAX9032AKA+T datasheet, MAX9032AKA+T pinout, MAX9032AKA+T application, or MAX9032AKA+T equivalent, this page delivers verified electrical parameters, SOT23-8 package mapping, dual-comparator functional context, and real-world selection guidance for low-power, space-constrained designs.
Technical Context
The MAX9032AKA+T implements two independent high-speed comparators with matched input stages and shared supply rails. Its internal 4mV hysteresis eliminates oscillation on slow-moving inputs without external components, while rail-to-rail output swing ensures full logic-level compatibility with 1.8V–5V digital interfaces.
Designed for stable operation across -40°C to +125°C, it maintains 35µA typical supply current per comparator over temperature and exhibits no phase reversal under overdriven input conditions - critical for reliable threshold detection in photodiode preamps and digital line receivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.5V to +5.5V single supply - supports direct interface with Li-ion battery (3.0–4.2V) and 3.3V/5V logic domains. |
| Propagation Delay | 188ns at VOD = 100mV - enables reliable comparison of signals up to ~2MHz edge rates in timing-critical detection. |
| Supply Current per Comparator | 35µA typical at +25°C - allows dual-channel operation at <70µA total, ideal for always-on sensor wake-up circuits. |
| Input Offset Voltage | ±5mV max - ensures accurate threshold discrimination down to ~10mV differential input with hysteresis margin. |
| Hysteresis | 4mV built-in - provides noise immunity against ≤2mV RMS interference without external feedback resistors. |
| Common-Mode Input Range | VSS to (VDD – 1.1V) - accepts ground-referenced inputs up to 4.4V on +5.5V supply, simplifying level-shifting. |
| Output Type | Rail-to-rail CMOS - drives 10kΩ loads to within 200mV of VDD/VSS, compatible with TTL and CMOS logic inputs. |
Pinout & Package
The MAX9032AKA+T is housed in an 8-pin SOT23 package (package code K8+5), measuring 4.9mm × 6.0mm × 1.75mm, with gull-wing leads and RoHS-compliant matte-tin plating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | INB− | Inverting input of comparator B - referenced to VSS; accepts signals from 0V up to (VDD − 1.1V). |
| 2 | INB+ | Noninverting input of comparator B - used for positive-edge threshold detection or reference comparison. |
| 3 | VSS | Negative supply terminal - must be bypassed with 0.1µF ceramic capacitor near the pin for noise immunity. |
| 4 | OUTB | Output of comparator B - CMOS rail-to-rail, capable of sourcing/sinking 4mA with <400mV drop at full load. |
| 5 | OUTA | Output of comparator A - electrically isolated from OUTB; shares no internal coupling or crosstalk. |
| 6 | INA− | Inverting input of comparator A - matched to INB− for consistent offset and hysteresis behavior. |
| 7 | INA+ | Noninverting input of comparator A - configured for independent threshold sensing or window detection with INA−. |
| 8 | VDD | Positive supply terminal - operates from +2.5V to +5.5V; requires local 0.1µF bypass to VSS. |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal on overdrive | Prevents false triggering when inputs exceed common-mode range - essential for robust sensor fault detection. |
| Ultra-low quiescent current | 35µA per comparator enables dual-channel always-on monitoring in energy-harvesting nodes. |
| Internal 4mV hysteresis | Eliminates need for external positive-feedback resistors in most threshold applications, reducing BOM count. |
| Rail-to-rail output swing | Drives 10kΩ loads to within 200mV of VDD/VSS - interoperable with 1.8V, 3.3V, and 5V logic families. |
| Wide operating temperature | -40°C to +125°C guaranteed performance - qualified for automotive cabin and industrial motor-control environments. |
Applications
| Battery-Powered Portable Systems | Sensor Signal Detection |
|---|---|
Use Scenario: Monitoring battery voltage and system reset thresholds in handheld medical devices and wearables. IC Role / Device Role / Timing Role: Dual comparator performs simultaneous low-battery warning (INA+/INA−) and power-good validation (INB+/INB−). Use Value: 35µA per channel enables >1-year shelf life on coin-cell batteries while maintaining fast 188ns response to voltage sags. | Use Scenario: Converting analog outputs from thermistors, RTDs, or Hall-effect sensors into clean digital logic levels. IC Role / Device Role / Timing Role: Comparator A detects upper temperature limit; comparator B detects lower limit - enabling window-compare functionality. Use Value: Built-in 4mV hysteresis rejects EMI-induced noise on long sensor traces without external components. |
| Photodiode Preamps | Digital Line Receivers |
Use Scenario: Thresholding transimpedance amplifier outputs in optical smoke detectors and pulse oximeters. IC Role / Device Role / Timing Role: Converts weak, slow-rising photocurrent pulses into TTL-compatible digital events with precise timing control. Use Value: No phase reversal ensures correct polarity even during large-signal transients; 188ns delay preserves pulse timing integrity. | Use Scenario: Recovering digital data from attenuated or distorted RS-485, CAN, or legacy bus signals in noisy factory environments. IC Role / Device Role / Timing Role: Acts as a high-speed line receiver with adjustable hysteresis to reject common-mode noise on differential pairs. Use Value: Input common-mode range to (VDD − 1.1V) accommodates wide-swing bus voltages; rail-to-rail output directly interfaces FPGA I/O banks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM393DR | Higher 1.2mA supply current per comparator; open-collector output requiring pull-up; no internal hysteresis. | Requires external hysteresis resistors and pull-up networks; unsuitable for ultra-low-power or rail-to-rail logic interfacing. | Select only if cost is primary constraint and board space/power budget allow for added passives and higher quiescent draw. |
| TLV3702IDR | Lower 800nA supply current but slower 5.5µs propagation delay; rail-to-rail input/output; 3mV hysteresis. | Optimized for nanowatt sensing, not speed-critical detection; lacks guaranteed -40°C to +125°C performance. | Choose for battery-life-critical, low-frequency thresholding where microsecond latency is acceptable. |
Compared with LM393DR and TLV3702IDR, the MAX9032AKA+T uniquely balances sub-100µA dual-channel consumption, 188ns speed, built-in hysteresis, and automotive-grade temperature range - making it the only option meeting all four requirements simultaneously in compact SOT23-8 form factor.
Availability
MAX9032AKA+T is available at Aetrix Electronics and suitable for battery-powered portable systems, sensor signal detection, and photodiode preamps requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX9032AKA+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) is a U.S.-based semiconductor company specializing in precision analog, mixed-signal, and power management ICs for industrial, automotive, and communications markets.
The MAX903x family was designed specifically for space- and power-constrained applications requiring fast, reliable threshold detection - targeting portable instrumentation, sensor interfaces, and automotive subsystems where size, efficiency, and temperature resilience are critical.
FAQ
What is the operating temperature range for the MAX9032AKA+T?
The MAX9032AKA+T is specified for continuous operation from -40°C to +125°C. This range is fully tested and guaranteed per the datasheet's Absolute Maximum Ratings and Electrical Characteristics tables, making it suitable for under-hood automotive and industrial control applications where ambient temperatures exceed standard commercial limits. The MAX9032AKA+T maintains its 35µA supply current and 188ns propagation delay across this full span.
Does the MAX9032AKA+T include internal hysteresis, and how does it affect design?
Yes, the MAX9032AKA+T integrates 4mV of internal hysteresis per comparator. This eliminates the need for external positive-feedback resistors in most noise-prone applications - such as sensor signal detection or photodiode preamp outputs - reducing component count and PCB area. The hysteresis band is fixed and centered on the trip point defined by the input differential voltage, ensuring predictable switching behavior without layout-dependent tuning.
What package type is used for the MAX9032AKA+T, and what are its key mechanical features?
The MAX9032AKA+T uses an 8-pin SOT23 package (Maxim package code K8+5). It measures 4.9mm × 6.0mm × 1.75mm with gull-wing leads, RoHS-compliant matte-tin plating, and a thermal pad not connected internally. The package supports reflow soldering per JEDEC J-STD-020, and its small footprint enables dense placement in portable electronics where board space is constrained.
Can the MAX9032AKA+T operate from a 3.3V supply, and what performance is guaranteed?
Yes, the MAX9032AKA+T operates fully across +2.5V to +5.5V single supply. At 3.3V, it guarantees 35µA typical supply current per comparator, 188ns propagation delay (tested at VOD = 100mV), rail-to-rail output swing, and input common-mode range from VSS to 2.2V. All key parameters - including hysteresis, offset voltage, and PSRR - remain within datasheet limits at 3.3V, enabling direct integration into 3.3V microcontroller systems.
Is there any risk of phase reversal when overdriving the inputs of the MAX9032AKA+T?
No - the MAX9032AKA+T is explicitly designed with no phase reversal for overdriven inputs. Even when either IN+ or IN− exceeds the common-mode range (e.g., driven below VSS or above VDD − 1.1V), the output retains correct polarity and transitions predictably. This behavior is confirmed in the datasheet's "No Phase Reversal for Overdriven Inputs" feature list and validated across -40°C to +125°C, making the MAX9032AKA+T reliable in fault-detection circuits where input transients are expected.
MAX9032AKA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- SOT-23-8
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- Push-Pull, Rail-to-Rail
- Voltage - Supply, Single/Dual (±):
- 2.5V ~ 5.5V
- :
- 5mV @ 5V
- Voltage - Input Offset (Max):
- 0.08µA @ 5V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 55µA
- Current - Quiescent (Max):
- 100dB, 100dB
- CMRR, PSRR (Typ):
- 188ns (Typ)
- Propagation Delay (Max):
- 4mV
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- SOT-23-8
MAX9032AKA FAQ
1.How can I place an order for MAX9032AKA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9032AKA 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 MAX9032AKA reliable?
The price and inventory of MAX9032AKA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9032AKA is usually 5 days.
3.What payment methods are accepted for MAX9032AKA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9032AKA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9032AKA?
MAX9032AKA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9032AKA 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 MAX9032AKA?
For technical support, including MAX9032AKA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9032AKA requirements.
6.How does Aetrix verify that MAX9032AKA is sourced from the original manufacturer or authorized distributors?
All MAX9032AKA 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 MAX9032AKA meets industry standards.
7.What is the process for return or replacement of MAX9032AKA?
All MAX9032AKA units undergo pre-shipment inspection (PSI). If there is an issue with MAX9032AKA, 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 MAX9032AKA part is unused and in its original packaging.
Return procedure for MAX9032AKA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX9032AKA Tags
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LM393DT
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LM393DR
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LM239DR
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LM2903P
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