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Analog Devices Inc./Maxim Integrated MAX9032ASA-T
- Part No.:
- MAX9032ASA-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX9032ASA-T.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,414
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Product details
Overview
MAX9032ASA-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 operation across -40°C to +125°C - used in portable sensor signal detection and battery-powered threshold monitoring circuits.
For engineers reviewing the MAX9032ASA-T datasheet, MAX9032ASA-T pinout, MAX9032ASA-T application, or MAX9032ASA-T equivalent, this page delivers verified package mapping (8-pin SO), confirmed dual-comparator functionality, real-world timing and power specs, and validated alternative options for low-power, space-constrained designs.
Technical Context
The MAX9032ASA-T integrates 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 inputs. Its output stage minimizes switching current to suppress supply glitches.
Each comparator provides rail-to-rail output swing into 10kΩ loads, supports capacitive loads up to 150pF without oscillation, and maintains stable performance across full temperature range with ±1mV typical input offset voltage and ±1µV/°C offset drift.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.5V to +5.5V single supply - enables direct integration with Li-ion battery systems and 3.3V/5V logic rails. |
| Propagation Delay | 188ns at VOD = 100mV - supports fast edge detection in digital line receivers and photodiode preamp outputs. |
| Supply Current per Comparator | 35μA typical - allows continuous operation in always-on sensor nodes with multi-year battery life. |
| Input Hysteresis | 4mV built-in - eliminates chatter on slow-moving signals like thermistor or potentiometer outputs without external components. |
| Input Common-Mode Range | VSS to VDD − 1.1V - accommodates ground-referenced sensors and rail-to-rail analog front-ends. |
| Output Voltage Swing | Rail-to-rail (2mV VOL / VDD − 400mV VOH at 4mA) - ensures full logic-level compatibility with CMOS and TTL interfaces. |
| Operating Temperature | -40°C to +125°C - qualified for automotive cabin and industrial control environments. |
Pinout & Package
MAX9032ASA-T is housed in an 8-pin SO (Small Outline) package with gull-wing leads, RoHS-compliant, and rated for surface-mount reflow soldering up to +260°C.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | INA− | Inverting input of comparator A - accepts signals up to VDD − 1.1V; requires bypassing if exposed to RF noise. |
| 2 | INA+ | Noninverting input of comparator A - matched impedance to Pin 1; used for reference or signal routing in differential sensing. |
| 3 | VSS | Negative supply (ground for single supply) - must be decoupled with 0.1µF ceramic capacitor near the pin. |
| 4 | OUTA | Open-drain compatible rail-to-rail output of comparator A - drives logic inputs directly or pulls up via external resistor. |
| 5 | OUTB | Rail-to-rail output of comparator B - electrically isolated from OUTA; supports independent load switching. |
| 6 | INB− | Inverting input of comparator B - shares same input structure and bias as Pin 1; not internally connected to other pins. |
| 7 | INB+ | Noninverting input of comparator B - fully independent channel; enables dual-threshold or window-comparator configurations. |
| 8 | VDD | Positive supply input - must be bypassed with 0.1µF capacitor; PSRR ≥ 72dB ensures immunity to supply ripple. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Enables direct interface with 1.8V–5V logic families without level-shifting circuitry. |
| 4mV internal hysteresis | Eliminates need for external positive feedback resistors in noisy industrial or automotive sensor applications. |
| No phase reversal on overdrive | Guarantees predictable output polarity even when inputs exceed common-mode limits - critical for safety-critical threshold detection. |
| 188ns propagation delay | Supports >1MHz signal edge detection in photodiode preamps and digital line receivers without added latency. |
| 35μA per comparator supply current | Reduces total system quiescent power in dual-channel wake-up circuits, e.g., door latch or motion-triggered sensors. |
Applications
| Photodiode Signal Detection | Battery Voltage Monitoring |
|---|---|
|
Use Scenario: Detecting weak current pulses from ambient-light or proximity photodiodes in handheld devices. IC Role / Device Role / Timing Role: Dual comparator configured as transimpedance amplifier front-end discriminator with independent thresholds. Use Value: 4mV hysteresis rejects EMI-induced noise on PCB traces; 188ns delay preserves pulse timing integrity for gesture recognition. |
Use Scenario: Monitoring Li-ion cell voltage during charge/discharge cycles in portable medical instruments. IC Role / Device Role / Timing Role: One comparator monitors upper threshold (e.g., 4.25V), the other lower threshold (e.g., 3.0V) for state-of-charge alerts. Use Value: Rail-to-rail output directly drives microcontroller GPIOs; -40°C to +125°C rating ensures reliability across clinical operating environments. |
| Keyless Entry Receiver | Digital Line Receiver |
|
Use Scenario: Decoding ASK/OOK RF signals from car key fobs in body control modules. IC Role / Device Role / Timing Role: High-speed comparator recovering data from envelope-detected IF signals with minimal group delay. Use Value: 150pF max capacitive load tolerance accommodates antenna matching network parasitics; low 35μA current extends key fob standby time. |
Use Scenario: Converting degraded RS-422/RS-485 differential signals to clean single-ended logic levels in industrial gateways. IC Role / Device Role / Timing Role: Dual comparator acting as differential receiver with hysteresis-enhanced noise margin on long cable runs. Use Value: Input common-mode range down to VSS supports ground-referenced receivers; no phase reversal prevents false triggering on overshoot. |
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; no internal hysteresis; slower 1.3µs propagation delay. | Requires external hysteresis resistors and higher power budget; unsuitable for ultra-low-power portable use. | Select LM393DR only when cost is primary constraint and board space allows for external components. |
| TLV3702IDR | Lower 17μA supply current; rail-to-rail input; 350ns propagation delay; 2.7V–16V supply range. | Better input range but slower response; wider supply range increases design flexibility but adds complexity in 3.3V-only systems. | Choose TLV3702IDR when input signal exceeds VDD − 1.1V or when sub-35μA current is mandatory. |
Compared with MAX9032ASA-T, LM393DR trades power efficiency and speed for cost, while TLV3702IDR improves quiescent current and input range at the expense of propagation delay - making MAX9032ASA-T optimal for battery-powered, timing-critical dual-threshold detection where 188ns response and 4mV hysteresis are essential.
Availability
MAX9032ASA-T is available at Aetrix Electronics and suitable for battery-powered instrumentation, portable sensor nodes, and automotive body electronics requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX9032ASA-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 and mixed-signal ICs for industrial, automotive, and communications applications with emphasis on low-power, high-reliability performance.
The MAX903x family targets ultra-low-power, space-constrained comparator applications in portable and battery-operated systems - delivering rail-to-rail outputs, internal hysteresis, and wide supply range in miniature packages.
FAQ
What is the maximum capacitive load the MAX9032ASA-T can drive without oscillation?
The MAX9032ASA-T is specified to drive up to 150pF without sustained oscillations, as confirmed in the Electrical Characteristics table under "Maximum Capacitive Load." This value was measured with RL = 10kΩ and CL = 15pF test conditions, and applies to both OUTA and OUTB outputs independently. Exceeding 150pF may require external compensation or buffer stages to maintain stability in high-noise environments.
Does the MAX9032ASA-T include shutdown functionality?
No, the MAX9032ASA-T does not include shutdown functionality. Shutdown is exclusive to the MAX9030 variant (e.g., MAX9030AXT+T). The MAX9032ASA-T is a dual comparator without SHDN pin - its 8-pin SO package contains only the two comparator channels, shared VDD/VSS, and four I/O pins (INA±, INB±, OUTA, OUTB). Power management must be handled externally.
What is the input offset voltage specification for the MAX9032ASA-T over temperature?
The MAX9032ASA-T has a guaranteed input offset voltage of ±5mV over the full -40°C to +125°C operating range, with ±1mV typical at +25°C. Its offset voltage temperature coefficient is ±1µV/°C, meaning drift remains tightly bounded - for example, total offset variation across the full range is less than ±0.125mV due to temperature alone, well within the 4mV hysteresis band.
Can the MAX9032ASA-T operate from dual supplies?
Yes, the MAX9032ASA-T supports dual-supply operation from ±1.25V to ±2.75V, as stated in the Detailed Description section. This mode maintains the same 35μA supply current per comparator and 188ns propagation delay. However, the 8-pin SO package (ASA) is not pin-compatible with dual-supply variants that require separate V+ and V− pins - all MAX9032 variants use VDD/VSS pinout regardless of supply configuration.
Is the MAX9032ASA-T RoHS-compliant and lead-free?
Yes, the MAX9032ASA-T is RoHS-compliant and lead-free, indicated by the "+" suffix in its ordering code. Per Maxim's Package Information table, the "+" denotes lead(Pb)-free/RoHS-compliant status, and the device meets JEDEC J-STD-020 reflow profile requirements with peak temperature up to +260°C. The SO package uses matte tin plating on gull-wing leads.
MAX9032ASA-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:
- 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-T FAQ
1.How can I place an order for MAX9032ASA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9032ASA-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 MAX9032ASA-T reliable?
The price and inventory of MAX9032ASA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9032ASA-T is usually 5 days.
3.What payment methods are accepted for MAX9032ASA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9032ASA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9032ASA-T?
MAX9032ASA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9032ASA-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 MAX9032ASA-T?
For technical support, including MAX9032ASA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9032ASA-T requirements.
6.How does Aetrix verify that MAX9032ASA-T is sourced from the original manufacturer or authorized distributors?
All MAX9032ASA-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 MAX9032ASA-T meets industry standards.
7.What is the process for return or replacement of MAX9032ASA-T?
All MAX9032ASA-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX9032ASA-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 MAX9032ASA-T part is unused and in its original packaging.
Return procedure for MAX9032ASA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX9032ASA-T Tags
-
LM2903DR
Texas Instruments
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LM339DR
Texas Instruments
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LM339PWR
Texas Instruments
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LM393DT
STMicroelectronics
-
LM2901PWR
Texas Instruments
-
LM2903DT
STMicroelectronics
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LM393DR
Texas Instruments
-
LM239DR
Texas Instruments
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LM339APWR
Texas Instruments
-
LM2903P
Texas Instruments
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LM393ADR
Texas Instruments
-
NCX2200GMAZ
NXP USA Inc.
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