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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:164
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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 functionality, temperature-rated performance (-40°C to +125°C), and real-world design implications of rail-to-rail swing and input common-mode range extending to VDD − 1.1V.
Technical Context
The MAX9032ASA+ integrates two independent comparators sharing a common VDD and VSS supply, each with noninverting (INA+/INB+) and inverting (INA−/INB−) inputs, rail-to-rail CMOS outputs (OUTA/OUTB), and no shutdown control. Its input stage operates with common-mode voltage from VSS to VDD − 1.1V, enabling direct interfacing with low-voltage sensors and ADC references.
Output switching minimizes supply-current transients via optimized output-stage design, eliminating power-supply glitches during transitions. Internal 4mV hysteresis prevents oscillation on slow-moving or noisy inputs without external components, while propagation delay remains stable across 10mV–100mV overdrive and load capacitance up to 150pF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.5V to +5.5V single supply - supports Li-ion battery (3.0–4.2V) and 3.3V logic domains without level shifting |
| Propagation Delay | 188ns at 100mV overdrive - enables reliable timing discrimination for >1MHz digital line receivers |
| Supply Current per Comparator | 35μA typical - allows continuous operation in always-on sensor wake-up circuits with multi-year battery life |
| Input Hysteresis | 4mV built-in - provides noise immunity against ≤2mV RMS interference without external feedback resistors |
| Input Common-Mode Range | VSS to VDD − 1.1V - accepts ground-referenced signals up to 4.4V on a 5.5V supply |
| Output Swing | Rail-to-rail (VSS to VDD) - ensures full logic-level compatibility with 1.8V/3.3V/5V MCUs and FPGA I/O |
| Operating Temperature | −40°C to +125°C - qualified for automotive cabin and industrial edge-sensor environments |
Pinout & Package
MAX9032ASA+ is housed in an 8-pin Small Outline (SO) package with standard 1.27mm pitch, JEDEC MS-012AC compliant footprint, and RoHS-compliant lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTA | Comparator A open-drain compatible CMOS output - sinks or sources current to VSS/VDD; drives 10kΩ loads directly |
| 2 | INA− | Comparator A inverting input - accepts signals within VSS to VDD − 1.1V; 8nA max bias current minimizes resistor-divider error |
| 3 | INA+ | Comparator A noninverting input - matched to INA− for <±5mV offset; enables precision threshold detection |
| 4 | VSS | Negative supply terminal - must be bypassed with 0.1µF ceramic capacitor near pin for stable high-speed switching |
| 5 | VDD | Positive supply terminal - supplies both comparators; PSRR ≥72dB rejects ripple from noisy DC-DC converters |
| 6 | INB+ | Comparator B noninverting input - electrically isolated from INA+; supports independent dual-threshold sensing |
| 7 | INB− | Comparator B inverting input - identical specs to INA−; enables differential or window-comparator configurations |
| 8 | OUTB | Comparator B CMOS output - fully independent of OUTA; supports asynchronous dual-event detection |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal on overdriven inputs | Prevents false triggering when IN+ or IN− exceeds VDD or drops below VSS by up to 0.3V |
| Rail-to-rail output swing | Delivers full VSS–VDD logic levels into 4mA loads, eliminating need for pull-up resistors in 3.3V systems |
| Ultra-low 35μA supply current | Enables integration into energy-harvesting nodes where average current budget is <100μA |
| 188ns propagation delay | Supports accurate edge detection in 5MHz clock recovery and photodiode pulse discrimination |
| 4mV internal hysteresis | Guarantees monotonic output transitions for input slew rates as low as 10mV/ms without external components |
Applications
| Battery-Powered Portable Systems | Sensor Signal Threshold Detection |
|---|---|
Use Scenario: Monitoring battery voltage and system reset thresholds in handheld medical devices and wireless sensors. IC Role / Device Role / Timing Role: Dual comparator implements undervoltage lockout (UVO) and charge-complete detection using separate reference inputs. Use Value: 35μA quiescent current extends coin-cell life beyond 3 years; rail-to-rail outputs interface directly with ultra-low-power MCU GPIOs. |
Use Scenario: Converting analog outputs from temperature, pressure, or gas sensors into clean digital alerts. IC Role / Device Role / Timing Role: One comparator detects upper limit (e.g., overtemperature), the other lower limit (e.g., fault condition), forming a window detector. Use Value: Built-in 4mV hysteresis eliminates chatter on noisy sensor outputs; −40°C to +125°C rating covers industrial sensor operating range. |
| Digital Line Receivers | Photodiode Preamp Signal Discrimination |
Use Scenario: Recovering TTL/CMOS-level data from attenuated or distorted traces in embedded serial links. IC Role / Device Role / Timing Role: Comparator slices incoming waveform against mid-rail reference to regenerate clean square waves. Use Value: 188ns delay ensures <5% timing jitter at 1Mbps; input common-mode range accommodates DC-coupled signals down to 0V. |
Use Scenario: Detecting weak current pulses from photodiodes in smoke detectors or optical encoders. IC Role / Device Role / Timing Role: High-impedance inputs (8nA bias) preserve signal integrity from transimpedance amplifier outputs. Use Value: Low input offset (±5mV max) enables detection of sub-10mV pulses; rail-to-rail output drives logic directly without amplification. |
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 | Not suitable for battery-critical designs; requires external hysteresis resistors for noise immunity | Select when cost is primary constraint and power budget exceeds 100μA per channel |
| TLV3702IDR | Lower 17μA supply current; rail-to-rail input; 360ns propagation delay; 1.8V–5.5V supply range | Better for ultra-low-voltage (1.8V) systems but slower response limits use in >500kHz line receivers | Select when operating below 2.5V or when input rail-to-rail capability is required for near-ground sensing |
Compared with LM393DR and TLV3702IDR, the MAX9032ASA+ uniquely balances ultra-low power (35μA), fast response (188ns), and integrated hysteresis - making it optimal for portable, high-speed, noise-prone sensor interfaces where layout space and bill-of-materials count are constrained.
Availability
MAX9032ASA+ is available at Aetrix Electronics and suitable for battery-powered portable systems, sensor signal threshold detection, 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 power, sensing, and interface applications in harsh-environment electronics.
The MAX9030/MAX9031/MAX9032/MAX9034 family was engineered specifically for space-constrained, low-power portable systems needing robust, single-supply comparators with guaranteed performance from −40°C to +125°C.
FAQ
What is the maximum capacitive load the MAX9032ASA+ can drive without oscillation?
The MAX9032ASA+ is characterized for stable operation with up to 150pF capacitive load at the output, as specified in the Electrical Characteristics table. Driving loads beyond this value may cause sustained oscillations or increased propagation delay. For loads >150pF, add a series resistor (e.g., 50Ω) close to the output pin to isolate capacitance and maintain stability. This limit applies across the full −40°C to +125°C temperature range and +2.5V to +5.5V supply.
Does the MAX9032ASA+ have shutdown capability?
No, the MAX9032ASA+ does not include a shutdown function. Shutdown is exclusive to the MAX9030 variant (e.g., MAX9030AXT+T). The MAX9032ASA+ is a dual comparator with fixed enable - it draws 35μA per comparator continuously under normal operation. If power gating is required, external MOSFET control of VDD or use of the MAX9030 is necessary.
Can the MAX9032ASA+ operate from dual supplies?
Yes, the MAX9032ASA+ supports dual-supply operation from ±1.25V to ±2.75V, as stated in the Detailed Description section. In dual-supply mode, VDD connects to +VS and VSS to −VS. Input common-mode range extends from −VS to (+VS − 1.1V), and outputs swing rail-to-rail between −VS and +VS. This configuration is used in legacy industrial signal conditioning where bipolar references are present.
What is the input offset voltage specification for the MAX9032ASA+ over temperature?
The MAX9032ASA+ has a guaranteed input offset voltage of ±5mV maximum 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 contributes less than ±0.1mV over a 100°C span. This stability supports precision threshold detection in automotive and industrial environments where calibration-free operation is required.
Is the MAX9032ASA+ pin-compatible with other packages in the MAX9032 family?
No, the MAX9032ASA+ (8-pin SO) is not pin-compatible with the MAX9032AKA+T (8-pin SOT23) or MAX9032AUA+ (8-pin µMAX). While all share identical electrical functionality and pin numbering logic, their physical pinouts differ: SO uses standard DIP-style layout (1–4 left side, 5–8 right side), whereas SOT23 and µMAX follow compact surface-mount arrangements with different terminal sequences. PCB layout must match the specific package variant ordered.
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:
- Active
- 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
-
LM2903DR
Texas Instruments
-
LM339DR
Texas Instruments
-
LM339PWR
Texas Instruments
-
LM393DT
STMicroelectronics
-
LM2901PWR
Texas Instruments
-
LM2903DT
STMicroelectronics
-
LM393DR
Texas Instruments
-
LM239DR
Texas Instruments
-
LM339APWR
Texas Instruments
-
LM2903P
Texas Instruments
-
LM393ADR
Texas Instruments
-
NCX2200GMAZ
NXP USA Inc.
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