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Analog Devices Inc./Maxim Integrated MAX9032AUA-T
- Part No.:
- MAX9032AUA-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX9032AUA-T.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:3,817
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Product details
Overview
MAX9032AUA+ 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 - deployed in battery-powered sensor interfaces and portable threshold detection circuits.
For engineers reviewing the MAX9032AUA+ datasheet, MAX9032AUA+ pinout, MAX9032AUA+ application, or MAX9032AUA+ equivalent, key selection criteria include input common-mode range (VSS to VDD – 1.1V), no phase reversal under overdrive, low switching-current output stage, and μMAX® package compatibility with space-constrained PCB layouts.
Technical Context
The MAX9032AUA+ integrates two independent comparators sharing a common VDD and VSS, each with matched input offset voltage (±1mV typical) and temperature coefficient (±1µV/°C). Its internal 4mV hysteresis eliminates oscillation on slow-moving inputs without external components.
Output stages are designed for rail-to-rail swing into 10kΩ loads, with VOL ≤ 400mV at 4mA sink and VOH ≥ VDD – 400mV at 4mA source. Propagation delay remains stable across capacitive loads up to 150pF and input overdrive voltages as low as 10mV.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.5V to +5.5V single supply - enables direct interface with Li-ion battery (3.0–4.2V) and 3.3V logic systems without level shifting |
| Propagation Delay | 188ns at VOD = 100mV - supports reliable edge detection in sub-5MHz digital line receivers and photodiode pulse discrimination |
| Supply Current per Comparator | 35μA typical - allows continuous operation in always-on sensor nodes with multi-year battery life at 3V |
| Input Common-Mode Range | VSS to VDD – 1.1V - accommodates ground-referenced signals and high-side sensing down to 1.1V below VDD |
| Hysteresis | 4mV built-in - provides noise immunity against EMI-coupled transients without external feedback resistors |
| Output Swing | Rail-to-rail - ensures full logic-level compatibility with CMOS/TTL inputs across entire supply range |
| Operating Temperature | -40°C to +125°C - qualified for automotive cabin and industrial motor-control ambient environments |
Pinout & Package
The MAX9032AUA+ is housed in an 8-pin μMAX® package (package code U8+1), measuring 3.0mm × 3.0mm × 0.8mm with exposed pad for thermal enhancement and fine-pitch gull-wing leads (0.65mm pitch).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VSS | Negative supply terminal - must be bypassed with 0.1µF ceramic capacitor placed <1mm from pin to minimize ground bounce during output transitions |
| 2 | OUTB | Comparator B output - open-drain compatible when pulled up externally; drives 4mA load while maintaining <400mV VOL |
| 3 | INB− | Comparator B inverting input - accepts signals within VSS to VDD – 1.1V; high impedance (8nA bias current) minimizes loading on high-Z sources |
| 4 | INB+ | Comparator B noninverting input - matched to INB− for <±5mV max offset; differential input voltage rating ±6.6V prevents latch-up |
| 5 | VDD | Positive supply terminal - requires local 0.1µF bypass to VSS; PSRR >72dB ensures stable operation amid supply ripple |
| 6 | INA+ | Comparator A noninverting input - electrically identical to INB+; enables dual-channel synchronous comparison of independent signal pairs |
| 7 | INA− | Comparator A inverting input - shares same input structure and common-mode limits as INB− |
| 8 | OUTA | Comparator A output - independently switchable; output short-circuit safe to VDD or VSS for ≤2s |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal under overdrive | Guaranteed operation even when inputs exceed VDD or drop below VSS by 0.3V - eliminates false triggering in transient-heavy sensor front-ends |
| Low switching-current output stage | Reduces supply glitches during output transitions - critical for mixed-signal systems sharing analog rails with ADCs or RF sections |
| Internal 4mV hysteresis | Eliminates need for external positive-feedback resistors in threshold-detection applications - saves board area and component count |
| Rail-to-rail output swing | Delivers full logic-high and logic-low levels across entire supply range - ensures interoperability with 1.8V, 3.3V, and 5V digital interfaces |
| Ultra-low quiescent current | 35μA per comparator enables dual-comparator functionality in energy-harvesting or coin-cell-powered devices |
Applications
| Battery-Powered Threshold Detection | Photodiode Signal Discrimination |
|---|---|
Use Scenario: Monitoring battery voltage against programmable low-battery cutoff thresholds in handheld medical devices. IC Role / Device Role: Dual comparator performing simultaneous high- and low-voltage window detection using resistor-divider references. Use Value: 4mV hysteresis prevents chatter near trip points; 35μA total supply current extends runtime in devices powered by CR2032 cells. |
Use Scenario: Converting weak, noisy photodiode current pulses into clean digital logic edges for optical encoder position tracking. IC Role / Device Role: High-speed comparator conditioning analog photocurrent outputs before feeding to microcontroller GPIO interrupts. Use Value: 188ns propagation delay resolves 5MHz encoder edges; rail-to-rail output directly drives 3.3V MCU inputs without pull-up resistors. |
| Digital Line Receiver | Keyless Entry Sensor Interface |
Use Scenario: Recovering NRZ data from attenuated, capacitively coupled RS-422 or CAN bus stub lines in automotive body control modules. IC Role / Device Role: Dual comparator acting as differential line receiver with adjustable hysteresis for noise margin tuning. Use Value: Input common-mode range extending to VDD – 1.1V supports reception from ±1.5V differential signals referenced to chassis ground. |
Use Scenario: Detecting proximity-induced capacitance changes in passive keyless entry (PKE) fob antennas during wake-up sequence. IC Role / Device Role: One comparator monitors oscillator amplitude decay; second validates timing window for valid key presence. Use Value: -40°C to +125°C operation ensures reliability in trunk-mounted PKE receivers; low supply current enables always-on listening mode. |
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 100μA supply current per comparator; no built-in hysteresis; slower 1.3µs propagation delay | Requires external hysteresis resistors; unsuitable for <1MHz signal paths or ultra-low-power designs | Select LM393DR only when cost is primary constraint and power/noise performance is secondary |
| TLV3702IDR | Lower 17μA supply current; rail-to-rail input; 360ns propagation delay; 2.7V–5.5V supply range | Wider input common-mode range (to VDD+0.1V) but lacks guaranteed operation below 2.7V | Choose TLV3702IDR for lower power where 2.7V minimum supply is acceptable and speed >188ns is tolerable |
Compared with MAX9032AUA+, LM393DR trades power efficiency and speed for cost, while TLV3702IDR improves quiescent current but sacrifices propagation delay and low-voltage headroom - making MAX9032AUA+ optimal for 2.5V–5.5V portable systems demanding both speed and sub-40μA operation.
Availability
MAX9032AUA+ is available at Aetrix Electronics and suitable for battery-powered instrumentation, photodiode signal conditioning, and automotive keyless entry systems requiring stable component supply across extended temperature ranges.
Supply support for MAX9032AUA+ 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.
The MAX903x family delivers ultra-low-power, small-footprint comparators targeting portable and sensor-edge applications where supply headroom, board area, and thermal constraints are critical.
FAQ
What is the maximum capacitive load the MAX9032AUA+ can drive without oscillation?
The MAX9032AUA+ is characterized to drive up to 150pF without sustained oscillations, as verified in the Electrical Characteristics table. Driving larger loads may increase propagation delay and require output series resistance to damp ringing - always verify stability with actual PCB parasitics and layout in final design.
Does the MAX9032AUA+ support dual-supply operation?
Yes, the MAX9032AUA+ supports dual supplies from ±1.25V to ±2.75V, as stated in the Detailed Description section. This enables use in legacy ±2.5V or ±3V systems, though its primary optimization targets single-supply +2.5V to +5.5V applications like portable equipment.
Is the MAX9032AUA+ pin-compatible with other MAX903x variants in the μMAX package?
No - only the MAX9032 family members (e.g., MAX9032AKA+, MAX9032AUA+, MAX9032ASA+) share the same 8-pin μMAX pinout. The MAX9030, MAX9031, and MAX9034 have different pin counts and functions; cross-package substitution requires schematic and layout revision.
What is the shutdown capability of the MAX9032AUA+?
The MAX9032AUA+ does not include a shutdown feature - that function is exclusive to the MAX9030 variant. The MAX9032AUA+ operates continuously whenever powered; for power-gated applications, external enable circuitry or supply switching must be used.
How does the 4mV internal hysteresis affect threshold accuracy in precision sensing?
The 4mV internal hysteresis creates a fixed 4mV window between upper and lower trip points, improving noise immunity but reducing effective resolution. For sub-millivolt threshold accuracy, external hysteresis trimming or post-processing compensation is required - the MAX9032AUA+'s ±1mV typical input offset remains unaffected by this hysteresis.
MAX9032AUA-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm 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-uMAX/uSOP
MAX9032AUA-T FAQ
1.How can I place an order for MAX9032AUA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9032AUA-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 MAX9032AUA-T reliable?
The price and inventory of MAX9032AUA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9032AUA-T is usually 5 days.
3.What payment methods are accepted for MAX9032AUA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9032AUA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9032AUA-T?
MAX9032AUA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9032AUA-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 MAX9032AUA-T?
For technical support, including MAX9032AUA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9032AUA-T requirements.
6.How does Aetrix verify that MAX9032AUA-T is sourced from the original manufacturer or authorized distributors?
All MAX9032AUA-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 MAX9032AUA-T meets industry standards.
7.What is the process for return or replacement of MAX9032AUA-T?
All MAX9032AUA-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX9032AUA-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 MAX9032AUA-T part is unused and in its original packaging.
Return procedure for MAX9032AUA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX9032AUA-T Tags
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LM2903DR
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LM339DR
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LM339PWR
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LM393DT
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LM2901PWR
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LM2903DT
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LM393DR
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LM239DR
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LM339APWR
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LM2903P
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NCX2200GMAZ
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