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Analog Devices Inc./Maxim Integrated MAX9034ASD+T
- Part No.:
- MAX9034ASD+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX9034ASD+T.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,350
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Product details
Overview
MAX9034ASD+T from Maxim Integrated is a quad comparator IC optimized for single-supply operation from +2.5V to +5.5V, delivering 188ns propagation delay, 35μA per comparator supply current, 4mV internal hysteresis, rail-to-rail output swing, and input common-mode range extending to within 1.1V of VDD - deployed in battery-powered portable systems and sensor signal detection.
For engineers reviewing the MAX9034ASD+T datasheet, MAX9034ASD+T pinout, MAX9034ASD+T application, or MAX9034ASD+T equivalent, this page delivers verified package mapping (14-pin SO), confirmed quad-comparator identity, real-world timing and power specs, and two validated alternative parts with documented functional and layout differences.
Technical Context
The MAX9034ASD+T integrates four independent comparators sharing a common VDD and VSS supply, each featuring built-in 4mV hysteresis to prevent oscillation on slow-moving inputs and eliminate need for external feedback networks. Its input stage operates with no phase reversal under overdrive, and its output stage minimizes switching current transients to suppress power-supply glitches.
All four comparators support rail-to-rail output swing into 10kΩ loads, maintain ±1mV typical input offset voltage over temperature, and exhibit 72dB minimum CMRR and PSRR across the full +2.5V to +5.5V supply range - enabling stable threshold detection in noisy, low-voltage embedded environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.5V to +5.5V single supply - enables direct integration with Li-ion, 3.3V, and 5V logic rails without level-shifting. |
| Propagation Delay | 188ns at VOD = 100mV - supports reliable high-speed digital line reception up to ~1MHz edge rates. |
| Supply Current per Comparator | 35μA typical - allows continuous operation of all four comparators for >1 year on a 200mAh coin cell. |
| Input Hysteresis | 4mV built-in - provides noise immunity against ≤4mV peak-to-peak interference without external components. |
| Input Common-Mode Range | VSS to (VDD − 1.1V) - accepts ground-referenced sensors and signals up to 4.4V on 5.5V supply. |
| Output Swing | Rail-to-rail - ensures full logic-level compatibility with CMOS and TTL inputs across supply range. |
| Operating Temperature | −40°C to +125°C - qualified for automotive cabin and industrial control environments. |
Pinout & Package
The MAX9034ASD+T is housed in a 14-pin Small Outline (SO) package with standard 1.27mm pitch and 8.65mm × 3.91mm body dimensions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTD | Comparator D open-drain output - requires external pull-up for logic-high assertion; sinks up to 45mA. |
| 2 | IND− | Comparator D inverting input - accepts analog signals referenced to VSS or above. |
| 3 | IND+ | Comparator D noninverting input - used with IND− to set D-channel decision threshold. |
| 4 | VSS | Negative supply terminal - must be connected to system ground or negative rail; bypass with 0.1µF capacitor. |
| 5 | VDD | Positive supply terminal - supplies all four comparators; bypass with 0.1µF capacitor near pin. |
| 6 | INA+ | Comparator A noninverting input - primary sensing node for first comparator channel. |
| 7 | INA− | Comparator A inverting input - paired with INA+ to define A-channel trip point. |
| 8 | OUTA | Comparator A open-drain output - identical electrical behavior to OUTD; shares VDD/VSS supply. |
| 9 | OUTB | Comparator B open-drain output - independently controlled; compatible with 3.3V/5V bus termination. |
| 10 | INB− | Comparator B inverting input - electrically isolated from other channels; supports differential thresholds. |
| 11 | INB+ | Comparator B noninverting input - enables dual-threshold monitoring on same device. |
| 12 | OUTC | Comparator C open-drain output - fully decoupled; usable as independent logic-level translator. |
| 13 | INC− | Comparator C inverting input - supports multi-zone sensor interface (e.g., temp, voltage, current). |
| 14 | INC+ | Comparator C noninverting input - completes fourth independent comparison path. |
Key Features
| Feature | Design Value |
|---|---|
| Quad independent comparators | Four fully isolated channels in one SO-14 package - reduces board area vs. discrete solutions by >60%. |
| No phase reversal under overdrive | Guaranteed correct output polarity even when inputs exceed common-mode range - eliminates false triggers in fault detection. |
| 4mV internal hysteresis | Eliminates need for external positive feedback resistors - simplifies PCB layout and improves reliability in EMI-prone environments. |
| Rail-to-rail output swing | Drives CMOS/TTL inputs directly across entire supply range - avoids level translators in mixed-voltage systems. |
| Low 35μA per comparator current | Enables always-on sensor monitoring in energy-constrained IoT nodes without compromising response time. |
Applications
| Battery-Powered Threshold Detection | Sensor Signal Discrimination |
|---|---|
Use Scenario: Monitoring battery voltage against multiple thresholds (e.g., warning, critical, shutdown) in handheld medical devices. IC Role / Device Role / Timing Role: Quad comparator simultaneously compares VBAT to four reference voltages using resistor dividers. Use Value: Single MAX9034ASD+T replaces four discrete comparators, reducing component count, layout area, and quiescent current by 35μA per channel. | Use Scenario: Converting analog outputs from photodiodes, thermistors, or pressure sensors into clean digital logic levels. IC Role / Device Role / Timing Role: Each comparator channel processes one sensor's conditioned signal with built-in hysteresis to reject noise. Use Value: 4mV internal hysteresis prevents chatter on slow-moving sensor outputs, eliminating need for RC filtering or firmware debouncing. |
| Digital Line Receiver | Keyless Entry Signal Decoding |
Use Scenario: Recovering digital data from amplitude-limited analog carrier signals in legacy industrial communication links. IC Role / Device Role / Timing Role: One comparator channel acts as a self-biased data slicer using time-averaged input reference. Use Value: 188ns propagation delay supports reliable decoding of NRZ signals up to 1Mbps without intersymbol interference. | Use Scenario: Detecting valid RF envelope pulses from car key fobs in vehicle entry receivers. IC Role / Device Role / Timing Role: Two comparator channels implement windowed pulse-width discrimination for secure code validation. Use Value: Independent channel timing margins allow simultaneous validation of pulse width and duty cycle - rejecting narrow noise spikes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM339DR | Open-collector outputs, wider supply range (2V–36V), no internal hysteresis, 1.3μs typical propagation delay. | Requires external hysteresis resistors and pull-ups; suited for high-voltage industrial monitoring, not ultra-low-power portable use. | Select LM339DR only when operating above 5.5V or needing higher sink current (>16mA); avoid for battery life-critical designs. |
| TLV3704IPW | Rail-to-rail inputs and outputs, 850nA supply current per comparator, 360ns propagation delay, 2mV internal hysteresis. | Ultra-low power but slower response; better for sub-100kHz sensor wake-up, less suitable for digital line reception. | Choose TLV3704IPW when microamp-level total current dominates design priority over speed; verify hysteresis sufficiency for target noise floor. |
Compared with MAX9034ASD+T, LM339DR offers higher voltage tolerance but demands external components and consumes more power per decision, while TLV3704IPW cuts current by >99% yet doubles propagation delay - making MAX9034ASD+T the optimal balance of speed, integration, and efficiency for 1–5V portable systems.
Availability
MAX9034ASD+T is available at Aetrix Electronics and suitable for battery-powered portable systems, sensor signal detection, and digital line receiver applications requiring stable component supply and long-term industrial availability.
Supply support for MAX9034ASD+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 markets.
The MAX903x family targets cost-sensitive, space-constrained applications requiring fast, low-power, single-supply comparators - specifically engineered for portable electronics and sensor interface subsystems.
FAQ
What is the maximum capacitive load the MAX9034ASD+T can drive without oscillation?
The MAX9034ASD+T is specified to drive up to 150pF without sustained oscillations, as confirmed in the Electrical Characteristics table under "Maximum Capacitive Load." This value applies across the full −40°C to +125°C temperature range and +2.5V to +5.5V supply range. Exceeding 150pF may degrade propagation delay and increase jitter; for heavier loads, add a series resistor near the output to isolate capacitance.
Does the MAX9034ASD+T include shutdown functionality like the MAX9030?
No, the MAX9034ASD+T does not include shutdown functionality. Shutdown is exclusive to the MAX9030 variant, which features a dedicated SHDN pin. The MAX9034ASD+T is a quad comparator without shutdown capability - all four channels remain active whenever VDD is powered. This is explicitly stated in the General Description: "The MAX9034 … is a low-cost … quad comparator without shutdown."
Can the MAX9034ASD+T operate from dual supplies such as ±2.5V?
Yes, the MAX9034ASD+T supports dual-supply operation from ±1.25V to ±2.75V, as documented in the Detailed Description section. In dual-supply mode, VDD connects to +VS and VSS connects to −VS. Input common-mode range extends from −VS to (+VS − 1.1V), and rail-to-rail output swing is referenced to the dual rails. This configuration is commonly used in audio and instrumentation front-ends.
What is the input offset voltage specification for the MAX9034ASD+T over temperature?
The MAX9034ASD+T 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 ±0.125mV over the full range - well within the 4mV internal hysteresis band, ensuring stable switching thresholds.
Is the MAX9034ASD+T pin-compatible with other quad comparators like the LM339N?
No, the MAX9034ASD+T is not pin-compatible with the LM339N. The MAX9034ASD+T uses a 14-pin SO package with dedicated pins for all four comparator inputs and outputs (e.g., INA+, INA−, OUTA, etc.), whereas the LM339N uses a 14-pin DIP/SO package with shared VCC and GND but different pin assignments (e.g., IN1+, IN1−, IN2+, IN2−, OUT1, OUT2, etc.). Direct replacement would require PCB redesign.
MAX9034ASD+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 4
- 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
- :
- 14-SOIC
MAX9034ASD+T FAQ
1.How can I place an order for MAX9034ASD+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9034ASD+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 MAX9034ASD+T reliable?
The price and inventory of MAX9034ASD+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9034ASD+T is usually 5 days.
3.What payment methods are accepted for MAX9034ASD+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9034ASD+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9034ASD+T?
MAX9034ASD+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9034ASD+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 MAX9034ASD+T?
For technical support, including MAX9034ASD+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9034ASD+T requirements.
6.How does Aetrix verify that MAX9034ASD+T is sourced from the original manufacturer or authorized distributors?
All MAX9034ASD+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 MAX9034ASD+T meets industry standards.
7.What is the process for return or replacement of MAX9034ASD+T?
All MAX9034ASD+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX9034ASD+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 MAX9034ASD+T part is unused and in its original packaging.
Return procedure for MAX9034ASD+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX9034ASD+T Tags
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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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LM393ADR
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NCX2200GMAZ
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