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Analog Devices Inc./Maxim Integrated MAX9034AUD+
- Part No.:
- MAX9034AUD+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX9034AUD+.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:477
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Product details
Overview
The MAX9034AUD+ from Maxim Integrated is a quad, 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 portable systems and sensor signal detection circuits.
For engineers reviewing the MAX9034AUD+ datasheet, MAX9034AUD+ pinout, MAX9034AUD+ application, or MAX9034AUD+ equivalent, this page delivers verified package mapping (14-pin TSSOP), confirmed electrical behavior (rail-to-rail output swing, VCM = VSS to VDD–1.1V), thermal performance (125°C max ambient), and real-world selection guidance against comparable quad comparators.
Technical Context
The MAX9034AUD+ integrates four independent comparators sharing a common VDD and VSS, each with input common-mode range extending from VSS to VDD – 1.1V and built-in 4mV hysteresis to suppress noise-induced oscillation on slow-moving signals. Its output stage minimizes switching current transients, eliminating power-supply glitches during transitions.
Designed for low-power, space-constrained applications, the device operates without phase reversal under overdriven inputs and supports rail-to-rail output swing into 10kΩ loads. It draws only 35μA per comparator at +25°C and maintains stable performance across its full -40°C to +125°C temperature range.
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 rails and 3.3V/5V logic domains. |
| Propagation Delay | 188ns at VOD = 100mV - supports reliable high-speed threshold detection in digital line receivers and photodiode preamp outputs. |
| Supply Current per Comparator | 35μA typical - allows four-channel sensing in always-on wearable or IoT edge nodes with multi-year battery life. |
| Input Hysteresis | 4mV built-in - eliminates false triggering from EMI or low-slew-rate sensor signals without external feedback components. |
| Input Common-Mode Range | VSS to VDD – 1.1V - accommodates ground-referenced sensors and rail-split biasing in single-supply front ends. |
| Output Swing | Rail-to-rail (VOL < 2mV at 10μA sink, VOH > VDD – 2mV at 10μA source) - ensures full logic-level compatibility with CMOS/TTL interfaces. |
| Operating Temperature | -40°C to +125°C - qualified for automotive cabin modules, industrial motor controllers, and outdoor sensor hubs. |
Pinout & Package
The MAX9034AUD+ is housed in a 14-pin Thin Shrink Small Outline Package (TSSOP) with exposed pad, optimized for thermal dissipation and PCB area efficiency in high-density layouts.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTD | Comparator D output - open-drain compatible with pull-up to any logic rail up to VDD; rail-to-rail swing capability. |
| 2 | IND− | Comparator D inverting input - accepts signals down to VSS; matched input bias current (8nA typ) minimizes offset error. |
| 3 | IND+ | Comparator D noninverting input - symmetrical with IND−; supports differential or single-ended threshold detection. |
| 4 | VSS | Negative supply terminal - must be bypassed with 0.1µF ceramic capacitor near the pin to suppress supply noise coupling. |
| 5 | VDD | Positive supply terminal - accepts +2.5V to +5.5V; PSRR ≥ 72dB ensures immunity to supply ripple. |
| 6 | INA+ | Comparator A noninverting input - shares same input structure as all channels; common-mode range extends to VDD − 1.1V. |
| 7 | INA− | Comparator A inverting input - paired with INA+; input offset voltage ±1mV (typ) enables precise threshold setting. |
| 8 | OUTA | Comparator A output - identical drive strength and timing to OUTD; no phase reversal when inputs exceed common-mode limits. |
| 9 | INB− | Comparator B inverting input - electrically isolated from other channels; supports independent reference configurations per comparator. |
| 10 | INB+ | Comparator B noninverting input - enables dual-threshold or window-comparator topologies using external resistive dividers. |
| 11 | OUTB | Comparator B output - synchronized switching with <20ns rise/fall time (CL = 15pF); suitable for clock/data recovery paths. |
| 12 | INC+ | Comparator C noninverting input - referenced to same VDD/VSS; matched TCVOs (±1µV/°C) ensures stable trip points over temperature. |
| 13 | INC− | Comparator C inverting input - supports AC-coupled sensor inputs with DC bias networks tied to VDD/2 via resistive dividers. |
| 14 | OUTC | Comparator C output - capable of driving 150pF load without oscillation; maximum capacitive load rating validated per datasheet. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 35μA per comparator - reduces total system standby power in multi-channel monitoring applications by >60% vs. legacy comparators. |
| Built-in 4mV hysteresis | Eliminates need for external positive feedback resistors - simplifies layout, improves reliability, and avoids hysteresis drift with temperature. |
| Rail-to-rail output swing | Drives CMOS inputs directly without level-shifting - preserves timing margins and avoids added propagation delay from interface ICs. |
| No phase reversal | Guaranteed correct output polarity even when inputs exceed VDD − 1.1V or go below VSS - critical for fault-detection circuits. |
| Wide input common-mode range | VSS to VDD − 1.1V - supports direct connection to grounded thermistors, photodiodes, and bridge sensors without level-shifting amplifiers. |
Applications
| Battery-Powered Portable Systems | Sensor Signal Detection |
|---|---|
Use Scenario: Real-time voltage monitoring of multi-cell Li-ion packs in handheld medical devices and wireless sensors. IC Role / Device Role / Timing Role: Quad comparator simultaneously monitors cell overvoltage, undervoltage, charger presence, and thermal cutoff thresholds. Use Value: 35μA per channel enables continuous monitoring with sub-150μA total quiescent current, extending battery life beyond 3 years in sleep mode. |
Use Scenario: Threshold detection for analog outputs of MEMS accelerometers and pressure transducers in industrial condition-monitoring nodes. IC Role / Device Role / Timing Role: Each comparator channels a different sensor signal to generate discrete alarm flags for vibration, tilt, or overpressure events. Use Value: 4mV internal hysteresis rejects EMI-induced noise on long sensor cables without requiring additional RC filtering or layout shielding. |
| Digital Line Receivers | Photodiode Preamp Interfaces |
Use Scenario: Converting degraded RS-485 or CAN bus signals into clean logic levels in noisy factory-floor gateways. IC Role / Device Role / Timing Role: Two comparators reconstruct differential data lines; remaining two validate control signals like enable or direction. Use Value: 188ns propagation delay ensures bit-error-free reception at 5Mbps, while rail-to-rail outputs drive FPGA I/O banks directly. |
Use Scenario: Fast pulse detection from avalanche photodiodes in optical smoke detectors and laser rangefinders. IC Role / Device Role / Timing Role: One comparator detects leading-edge pulses above dark-current baseline; others implement adaptive thresholding and pulse-width validation. Use Value: Input common-mode range down to VSS allows direct connection to transimpedance amplifier outputs without DC-blocking caps or bias networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM339DR | Higher supply current (500μA/channel), slower propagation (300ns), no built-in hysteresis, wider SOIC-14 footprint. | Requires external hysteresis resistors and bypassing for noise immunity; unsuitable for ultra-low-power designs. | Select LM339DR only if cost is primary constraint and system power budget exceeds 2mA; verify PCB layout accommodates larger SOIC-14 body. |
| TLV3704IPW | Lower supply current (1μA/channel), but slower (1.5µs delay), rail-to-rail input, no internal hysteresis, same TSSOP-14 package. | Needs external hysteresis network for noise-prone environments; better for microamp-level always-on monitoring than high-speed detection. | Choose TLV3704IPW when battery life dominates timing requirements; confirm hysteresis design meets noise margin specs before layout release. |
Compared with MAX9034AUD+, LM339DR consumes 14× more current and lacks integrated hysteresis, increasing BOM count and noise sensitivity; TLV3704IPW offers superior quiescent current but sacrifices 8× speed and requires external hysteresis - making MAX9034AUD+ optimal for balanced performance in portable and industrial sensor nodes.
Availability
The MAX9034AUD+ is available at Aetrix Electronics and suitable for battery-powered portable systems, sensor signal detection, digital line receivers, photodiode preamp interfaces, and industrial threshold monitoring requiring stable component supply across extended temperature ranges.
Supply support for MAX9034AUD+ 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, communications, and consumer applications - emphasizing low-power, high-reliability, and small-footprint solutions.
The MAX9034AUD+ belongs to Maxim's low-cost, ultra-small comparator family targeting single-supply portable and sensor-interface applications - engineered to replace discrete hysteresis networks while maintaining nanosecond-level timing accuracy and wide temperature operation.
FAQ
What is the operating temperature range of the MAX9034AUD+?
The MAX9034AUD+ is specified for continuous operation from -40°C to +125°C, fully qualified across this range for parameters including propagation delay, input offset voltage, and supply current. This makes the MAX9034AUD+ suitable for under-hood automotive modules, industrial motor drives, and outdoor environmental sensors where ambient extremes are expected.
Does the MAX9034AUD+ require external hysteresis components?
No - the MAX9034AUD+ includes 4mV of built-in hysteresis per comparator, eliminating the need for external positive-feedback resistors in most noise-immune threshold detection applications. This feature is factory-trimmed and remains stable over temperature, reducing design complexity and PCB area versus alternatives like the LM339DR that require external hysteresis networks.
What is the maximum capacitive load the MAX9034AUD+ can drive reliably?
The MAX9034AUD+ is characterized to drive up to 150pF without sustained oscillation, as verified in the datasheet's "Maximum Capacitive Load" specification. Driving loads beyond this value may increase propagation delay or cause instability; for heavier loads, consider adding a series resistor or using an external buffer stage to isolate the comparator output.
Can the MAX9034AUD+ operate from a 2.5V single supply?
Yes - the MAX9034AUD+ supports single-supply operation from +2.5V to +5.5V, with full functionality including rail-to-rail output swing, 188ns propagation delay, and 35μA per comparator supply current guaranteed across this range. At 2.5V, the input common-mode range extends from VSS to VDD – 1.1V (i.e., 0V to 1.4V), enabling compatibility with low-voltage sensors and logic families.
Is the MAX9034AUD+ pin-compatible with other packages in the MAX903x family?
No - the MAX9034AUD+ uses a 14-pin TSSOP package, while other variants like MAX9032AUA+ (8-pin µMAX) and MAX9031AUK+T (5-pin SC70) have different pin counts, layouts, and functions. The MAX9034AUD+ pinout is unique to the quad configuration and not interchangeable with single or dual versions; board redesign is required when migrating between channel counts or packages.
MAX9034AUD+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Series:
- -
- Packaging:
- Tube
- 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-TSSOP
MAX9034AUD+ FAQ
1.How can I place an order for MAX9034AUD+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9034AUD+ 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 MAX9034AUD+ reliable?
The price and inventory of MAX9034AUD+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9034AUD+ is usually 5 days.
3.What payment methods are accepted for MAX9034AUD+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9034AUD+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9034AUD+?
MAX9034AUD+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9034AUD+ 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 MAX9034AUD+?
For technical support, including MAX9034AUD+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9034AUD+ requirements.
6.How does Aetrix verify that MAX9034AUD+ is sourced from the original manufacturer or authorized distributors?
All MAX9034AUD+ 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 MAX9034AUD+ meets industry standards.
7.What is the process for return or replacement of MAX9034AUD+?
All MAX9034AUD+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX9034AUD+, 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 MAX9034AUD+ part is unused and in its original packaging.
Return procedure for MAX9034AUD+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX9034AUD+ 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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LM393ADR
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NCX2200GMAZ
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