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Analog Devices Inc./Maxim Integrated MAX9032ASA
- Part No.:
- MAX9032ASA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX9032ASA.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,190
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Product details
Overview
MAX9032ASA 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, and 4mV internal hysteresis - deployed in battery-powered portable systems and sensor signal detection circuits.
For engineers reviewing the MAX9032ASA datasheet, MAX9032ASA pinout, MAX9032ASA application, or MAX9032ASA equivalent, this page delivers verified package mapping (8-pin SO), confirmed dual-comparator circuit role, temperature range (-40°C to +125°C), rail-to-rail output swing, and hysteresis-enabled noise immunity for slow-moving inputs.
Technical Context
The MAX9032ASA implements two independent comparators sharing a common VDD and VSS supply, each with input common-mode range extending from VSS to VDD – 1.1V and no phase reversal under overdriven conditions. Its output stage minimizes switching current transients to suppress power-supply glitches.
Each comparator features built-in 4mV hysteresis to prevent oscillation on noisy or slowly varying signals, and supports rail-to-rail output swing into 10kΩ loads with 2mV low-level and 400mV high-level voltage drop at 4mA sink/source - validated across -40°C to +125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.5V to +5.5V single supply - enables direct integration into Li-ion and 3.3V/5V logic domains without level-shifting. |
| Propagation Delay | 188ns at VOD = 100mV - supports fast threshold detection in digital line receivers and photodiode preamp timing paths. |
| Supply Current per Comparator | 35μA typical - allows continuous operation in always-on sensor monitoring nodes with multi-year battery life. |
| Input Offset Voltage | ±1mV typical - ensures accurate trip-point stability for precision threshold detectors and discriminators. |
| Hysteresis | 4mV fixed internal - eliminates need for external feedback resistors in basic noise-immune applications. |
| Operating Temperature | -40°C to +125°C - qualified for automotive cabin and industrial embedded environments without derating. |
| Output Swing | Rail-to-rail - drives CMOS/TTL inputs directly without pull-up resistors or interface buffers. |
Pinout & Package
MAX9032ASA is housed in an 8-pin Small Outline (SO) package with standard 1.27mm pitch and gull-wing leads - compatible with automated SMT assembly and IPC-7351B land pattern S8+2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | INA− | Inverting input of comparator A - accepts signals up to VDD − 1.1V; referenced to VSS for single-supply biasing. |
| 2 | INA+ | Noninverting input of comparator A - used with INA− to define threshold crossing for output transition. |
| 3 | VSS | Negative supply terminal - must be bypassed with 0.1µF capacitor to ground for stable high-speed operation. |
| 4 | OUTA | Output of comparator A - rail-to-rail CMOS-compatible output capable of sinking/sourcing 4mA. |
| 5 | OUTB | Output of comparator B - electrically isolated from OUTA; supports independent logic-level signaling. |
| 6 | INB+ | Noninverting input of comparator B - shares VDD/VSS with comparator A but has independent input path. |
| 7 | INB− | Inverting input of comparator B - differential pair with INB+; supports separate signal conditioning per channel. |
| 8 | VDD | Positive supply terminal - operates from +2.5V to +5.5V; requires local 0.1µF bypass to minimize PSRR-induced errors. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 35μA per comparator enables always-on sensing in energy-constrained IoT endpoints. |
| Internal 4mV hysteresis | Eliminates external positive-feedback components for noise-immune threshold detection in EMI-prone environments. |
| No phase reversal | Guarantees correct output polarity even when inputs exceed common-mode range - critical for safety-critical overvoltage monitoring. |
| Rail-to-rail output swing | Drives 10kΩ loads to within 2mV of VSS and 400mV below VDD at 4mA - interfaces directly with microcontroller GPIOs. |
| Wide input common-mode range | VSS to VDD − 1.1V allows direct connection to sensors operating near supply rails without attenuation networks. |
Applications
| Battery-Powered Threshold Detection | Sensor Signal Discrimination |
|---|---|
Use Scenario: Monitoring battery cell voltage against low- and high-voltage cutoff thresholds in portable medical devices. IC Role / Device Role / Timing Role: Dual comparator performing simultaneous high-side and low-side voltage window detection with hysteresis. Use Value: 35μA total quiescent current extends runtime; 4mV hysteresis prevents chatter during gradual voltage decay near cutoff points. | Use Scenario: Converting analog photodiode or thermistor outputs into clean digital logic levels for microcontroller ADC triggering. IC Role / Device Role / Timing Role: Comparator A detects rising edge (e.g., light-on event); comparator B detects falling edge (light-off) with independent thresholds. Use Value: 188ns propagation delay ensures sub-microsecond response to fast optical pulses; rail-to-rail output directly clocks MCU interrupt pins. |
| Digital Line Receiver | Keyless Entry Signal Detection |
Use Scenario: Recovering digital data from amplitude-limited analog carrier signals in RS-485 or legacy bus receivers. IC Role / Device Role / Timing Role: One comparator acts as data slicer; second provides self-biased reference via RC averaging network. Use Value: Input common-mode range to VDD − 1.1V accommodates wide-swing differential inputs; no phase reversal avoids false transitions during signal overshoot. | Use Scenario: Detecting RF envelope peaks from car key fob transmissions in immobilizer receiver front-ends. IC Role / Device Role / Timing Role: Dual-channel peak-hold and threshold comparison using one comparator for envelope detection and second for decision logic. Use Value: -40°C to +125°C rating ensures reliable cold-cranking operation; 4mV hysteresis rejects RF noise while preserving weak signal integrity. |
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 1.5mA supply current per comparator; no internal hysteresis; open-collector output only. | Requires external pull-up and hysteresis resistors; unsuitable for ultra-low-power or rail-to-rail interfacing. | Select MAX9032ASA when supply current < 50μA, rail-to-rail output, or integrated hysteresis are required. |
| TLV3702IDR | Lower 1.8μA supply current but slower 650ns propagation delay; rail-to-rail input/output; no internal hysteresis. | Optimized for nanowatt standby but not for fast-response sensor triggers; needs external hysteresis for noise immunity. | Choose MAX9032ASA for balanced speed (188ns) and efficiency (35μA) where both matter - e.g., portable data loggers. |
Compared with LM393DR and TLV3702IDR, MAX9032ASA uniquely delivers 188ns speed + 35μA current + 4mV hysteresis + rail-to-rail output in a single 8-pin SO package - eliminating design compromises in space- and power-constrained dual-threshold systems.
Availability
MAX9032ASA is available at Aetrix Electronics and suitable for battery-powered portable systems, sensor signal discrimination, and digital line receivers requiring stable component supply across automotive and industrial temperature ranges.
Supply support for MAX9032ASA 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 and mixed-signal ICs for industrial, automotive, and communications applications - emphasizing low-power, high-reliability, and small-footprint solutions.
The MAX903x family targets cost-sensitive, space-constrained systems needing robust, low-quiescent-current comparators - specifically engineered for portable, sensor, and automotive subsystems where supply headroom and thermal margin are limited.
FAQ
What is the operating temperature range for MAX9032ASA?
The MAX9032ASA is rated for continuous operation from -40°C to +125°C - fully qualified for under-hood automotive and industrial control applications. This range is guaranteed by design and production-tested per Maxim's automotive qualification standards, and applies to all electrical specifications including propagation delay, supply current, and input offset voltage.
Does MAX9032ASA include internal hysteresis, and how does it affect circuit design?
Yes, MAX9032ASA includes 4mV of built-in hysteresis per comparator - defined as the difference between rising and falling input trip points. This eliminates the need for external positive-feedback resistors in basic noise-immune threshold detection, simplifying PCB layout and reducing BOM count. The hysteresis is fixed and non-adjustable, making MAX9032ASA ideal for applications where consistent, repeatable switching behavior is required without tuning.
Can MAX9032ASA operate from a 3.3V supply, and what is its performance at that voltage?
Yes, MAX9032ASA operates across +2.5V to +5.5V single supply - including standard 3.3V rails. At VDD = 3.3V, supply current remains 35μA typical, propagation delay increases slightly to ~200ns (per typical curves), and rail-to-rail output swing maintains functionality down to 2mV above VSS and within 400mV of VDD at 4mA load - ensuring full compatibility with 3.3V logic interfaces.
What package type is used for MAX9032ASA, and is it RoHS-compliant?
MAX9032ASA uses an 8-pin Small Outline (SO) package with gull-wing leads and 1.27mm pitch, identified by package code S8+2. The "+" suffix in MAX9032ASA+ confirms lead(Pb)-free and RoHS-compliant construction per EU Directive 2011/65/EU. Land pattern and soldering profiles follow IPC-7351B standards and Maxim's published package outline 21-0041.
How does the input common-mode range of MAX9032ASA compare to standard comparators?
MAX9032ASA offers an extended input common-mode range from VSS to VDD − 1.1V - significantly wider than many legacy comparators (e.g., LM393 limits to VSS to VDD − 1.5V). This allows direct connection of sensors or signal sources operating near the positive rail without attenuator networks, preserving signal-to-noise ratio and reducing component count in high-side sensing applications.
MAX9032ASA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- Push-Pull, Rail-to-Rail
- Voltage - Supply, Single/Dual (±):
- 2.5V ~ 5.5V
- :
- 1mV @ 5V
- Voltage - Input Offset (Max):
- 0.008µA @ 5V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 55µA
- Current - Quiescent (Max):
- 100dB CMRR, 100dB PSRR
- CMRR, PSRR (Typ):
- 228ns
- Propagation Delay (Max):
- 4mV
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-SOIC
MAX9032ASA FAQ
1.How can I place an order for MAX9032ASA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9032ASA 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 MAX9032ASA reliable?
The price and inventory of MAX9032ASA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9032ASA is usually 5 days.
3.What payment methods are accepted for MAX9032ASA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9032ASA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9032ASA?
MAX9032ASA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9032ASA 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 MAX9032ASA?
For technical support, including MAX9032ASA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9032ASA requirements.
6.How does Aetrix verify that MAX9032ASA is sourced from the original manufacturer or authorized distributors?
All MAX9032ASA 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 MAX9032ASA meets industry standards.
7.What is the process for return or replacement of MAX9032ASA?
All MAX9032ASA units undergo pre-shipment inspection (PSI). If there is an issue with MAX9032ASA, 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 MAX9032ASA part is unused and in its original packaging.
Return procedure for MAX9032ASA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX9032ASA Tags
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LM2903DR
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LM339DR
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LM393DT
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LM393DR
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LM239DR
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LM2903P
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NCX2200GMAZ
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