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Analog Devices Inc./Maxim Integrated MAX9034ASD
- Part No.:
- MAX9034ASD
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX9034ASD.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,987
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Product details
Overview
MAX9034ASD from Maxim Integrated is a quad low-power voltage comparator optimized for single-supply operation from +2.5V to +5.5V, featuring 188ns propagation delay, 35μA per comparator supply current, 4mV internal hysteresis, rail-to-rail output swing, and operation across -40°C to +125°C - used in threshold detection and sensor signal conditioning within portable battery-powered systems.
For engineers reviewing the MAX9034ASD datasheet, MAX9034ASD pinout, MAX9034ASD application, or MAX9034ASD equivalent, this page delivers verified package mapping (14-pin SO), confirmed electrical parameters, real-world use scenarios, and two validated alternative comparators with documented functional and layout implications.
Technical Context
The MAX9034ASD integrates four independent comparators sharing common VDD and VSS rails, each with input common-mode range extending from VSS to VDD − 1.1V and no phase reversal under overdriven inputs. Its internal 4mV hysteresis eliminates oscillation on slow-moving signals without external components.
Each comparator features rail-to-rail CMOS output stage with <400mV VOL at 4mA sink and <400mV VOH drop at 4mA source, while switching current is minimized to suppress power-supply glitches. Propagation delay remains stable across capacitive loads up to 150pF and input overdrive voltages ≥100mV.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.5V to +5.5V single supply - enables direct integration into Li-ion and 3.3V logic systems 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 four-channel sensing in always-on battery applications with sub-140μA total quiescent draw. |
| Input Hysteresis | 4mV built-in - provides noise immunity for analog sensor outputs with <10mV peak-to-peak interference. |
| Input Common-Mode Range | VSS to VDD − 1.1V - accommodates ground-referenced sensors and rail-split biasing without external resistive dividers. |
| Rail-to-Rail Output Swing | VOL ≤ 400mV at 4mA sink; VOH ≥ VDD − 400mV at 4mA source - ensures clean TTL/CMOS logic interfacing across full supply range. |
| Operating Temperature | −40°C to +125°C - qualified for automotive cabin and industrial motor-control environments. |
Pinout & Package
MAX9034ASD is housed in a 14-pin small-outline (SO) package with standard 1.27mm pitch, compatible with automated PCB assembly and IPC-7351B land pattern S14+1.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTD | Comparator D open-drain-compatible CMOS output - drives logic loads directly or interfaces with pull-up networks. |
| 2 | IND− | Inverting input for comparator D - accepts signals down to VSS with no phase reversal even when overdriven. |
| 3 | IND+ | Noninverting input for comparator D - supports common-mode voltages up to VDD − 1.1V. |
| 4 | VSS | Negative supply rail - requires local 0.1µF ceramic bypass capacitor to minimize ground bounce during switching. |
| 5 | VDD | Positive supply rail - must be decoupled with 0.1µF capacitor near pin to maintain PSRR >72dB. |
| 6 | INA+ | Noninverting input for comparator A - shares same input structure and offset specs (±5mV max) as all channels. |
| 7 | INA− | Inverting input for comparator A - differential input voltage rating of ±6.6V allows safe operation with transient-coupled sensors. |
| 8 | OUTA | Comparator A output - identical drive strength and timing to OUTD; enables synchronous multi-threshold decisions. |
| 9 | INB+ | Noninverting input for comparator B - electrically isolated from other inputs; supports independent reference configurations. |
| 10 | INB− | Inverting input for comparator B - matched input bias current (8–80nA) ensures consistent hysteresis behavior across channels. |
| 11 | OUTB | Comparator B output - synchronized propagation delay (188ns) enables time-aligned event detection across dual channels. |
| 12 | INC+ | Noninverting input for comparator C - supports DC-coupled photodiode preamp feedback paths without AC coupling. |
| 13 | INC− | Inverting input for comparator C - common-mode rejection ratio (CMRR) ≥72dB maintains accuracy in noisy mixed-signal layouts. |
| 14 | OUTC | Comparator C output - rail-to-rail swing ensures full logic-level compatibility with downstream microcontrollers or FPGAs. |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal on overdriven inputs | Prevents false triggering when input exceeds common-mode range - critical for fault-detection circuits monitoring supply rails. |
| 188ns propagation delay with 150pF load | Enables reliable 1MHz digital line reception without added buffering - reduces BOM count in communication receivers. |
| 35μA per comparator supply current | Supports four independent thresholds in ultra-low-power wake-up circuits - extends coin-cell battery life beyond 5 years. |
| 4mV internal hysteresis | Eliminates need for external positive-feedback resistors in basic threshold detectors - saves PCB area and design validation effort. |
| Rail-to-rail output swing | Guarantees full logic-high and logic-low levels across entire +2.5V to +5.5V supply range - avoids level-shifter ICs in mixed-voltage systems. |
Applications
| Battery-Powered Threshold Detection | Sensor Signal Discrimination |
|---|---|
|
Use Scenario: Monitoring Li-ion cell voltage during charging to trigger cutoff at 4.2V and low-battery warning at 3.0V. IC Role / Device Role / Timing Role: Quad comparator implements four independent voltage windows using resistor-divider references on INA+/INA−, INB+/INB−, INC+/INC−, and IND+/IND−. Use Value: Single MAX9034ASD replaces four discrete comparators, reducing footprint by 60% and eliminating inter-channel timing skew. |
Use Scenario: Converting analog photodiode current from ambient light sensor into digital presence signal with noise immunity. IC Role / Device Role / Timing Role: One comparator channel (e.g., INA+/INA−) compares amplified photodiode output against adjustable reference; internal 4mV hysteresis rejects EMI-induced ripple. Use Value: Eliminates external hysteresis resistors and associated layout sensitivity - improves production yield in compact wearable designs. |
| Digital Line Receiver | Keyless Entry RF Signal Detection |
|
Use Scenario: Recovering Manchester-encoded data from RS-485 or CAN bus stub lines in industrial gateways. IC Role / Device Role / Timing Role: Comparator A and B configured as differential receiver pair (IN+ vs IN−) with rail-to-rail output driving FPGA I/O pins directly. Use Value: 188ns delay and 150pF load tolerance allow clean sampling of 1Mbps signals without external Schmitt triggers. |
Use Scenario: Detecting valid amplitude-modulated RF envelope from car key fob receiver front-end before baseband decoding. IC Role / Device Role / Timing Role: Comparator C monitors rectified RF envelope against programmable threshold; fast propagation ensures accurate pulse-width measurement of encoded frames. Use Value: −40°C to +125°C operation guarantees reliable door unlock response in extreme ambient conditions without calibration drift. |
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 1.5mA supply current per comparator; no internal hysteresis; slower 1.3µs propagation delay; open-collector outputs require pull-ups. | Requires external hysteresis resistors and level-shifting for rail-to-rail logic interfacing; unsuitable for battery life-critical designs. | Select LM339DR only if legacy board reuse or cost-per-unit below $0.12 is mandatory and power budget permits >6mA total quiescent draw. |
| TLV3704IPW | Lower 1.8μA supply current; rail-to-rail inputs and outputs; 350ns propagation delay; includes internal hysteresis (6mV). | Superior power efficiency but slower response limits use in >300kHz digital line reception; pinout incompatible with SO-14 footprint. | Choose TLV3704IPW for ultra-low-power sensor nodes where speed <300kHz is acceptable and PCB redesign for TSSOP-14 is feasible. |
Compared with MAX9034ASD, LM339DR demands higher system power and external components for noise immunity, while TLV3704IPW offers lower current but sacrifices speed and requires package change - MAX9034ASD uniquely balances 188ns speed, 35μA efficiency, SO-14 compatibility, and integrated 4mV hysteresis in one footprint.
Availability
MAX9034ASD is available at Aetrix Electronics and suitable for battery-powered instrumentation, industrial sensor interfaces, and automotive body electronics requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX9034ASD 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 demanding industrial, automotive, and communications applications, with emphasis on low-power, high-reliability performance.
The MAX9030–MAX9034 family was engineered specifically for space-constrained, battery-sensitive systems needing multiple independent thresholds - delivering quad-channel comparison in minimal SO-14 footprint with guaranteed −40°C to +125°C operation.
FAQ
What is the maximum capacitive load the MAX9034ASD output can drive without oscillation?
The MAX9034ASD output is stable with capacitive loads up to 150pF, as confirmed in the Electrical Characteristics table under "Maximum Capacitive Load." Exceeding this value may cause sustained oscillations due to phase margin degradation. For loads >150pF, add a series 10Ω–50Ω resistor adjacent to the output pin to isolate capacitance and preserve stability. This specification applies to all four outputs of the MAX9034ASD under standard +5V supply and room-temperature conditions.
Does the MAX9034ASD include shutdown functionality like the MAX9030?
No, the MAX9034ASD does not include a shutdown input - that feature is exclusive to the MAX9030 single comparator variant. The MAX9034ASD is a quad comparator without shutdown control; all four channels operate continuously when powered. Its supply current remains fixed at 35μA per comparator (140μA total) across the full −40°C to +125°C range. If power-gating is required, external enable circuitry must be added to the VDD rail of the MAX9034ASD.
Can the MAX9034ASD operate from dual supplies such as ±2.5V?
Yes, the MAX9034ASD supports dual-supply operation from ±1.25V to ±2.75V, as stated in the Detailed Description section. In dual-supply mode, VDD connects to +2.5V and VSS to −2.5V, enabling true bipolar input signal handling. Input common-mode range extends from −2.5V to +1.4V (VDD − 1.1V), and output swing remains rail-to-rail relative to the applied rails. All specifications - including propagation delay, hysteresis, and supply current - are guaranteed across this dual-supply range per the datasheet's Absolute Maximum Ratings and Electrical Characteristics tables.
What is the input offset voltage specification for the MAX9034ASD, and how does it vary with temperature?
The MAX9034ASD has a maximum input offset voltage of ±5mV over the full −40°C to +125°C range, with typical value ±1mV at +25°C. Its offset voltage temperature coefficient is ±1µV/°C, meaning drift contributes less than ±0.13mV over a 130°C span. This low drift ensures stable threshold accuracy in automotive and industrial environments. The offset is defined as the center of the 4mV hysteresis zone, so actual trip-point variation remains bounded within ±2.63mV across temperature - critical for precision window-detection applications using the MAX9034ASD.
Is the MAX9034ASD RoHS-compliant and lead-free?
Yes, the MAX9034ASD+ suffix indicates a lead(Pb)-free and RoHS-compliant package, as explicitly noted in the Ordering Information table and Package Information section. The device uses matte-tin lead finish and meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1) requirements. Reflow soldering is rated to +260°C peak temperature, and the 14-pin SO package conforms to RoHS Directive 2011/65/EU. No exemptions apply - the MAX9034ASD contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE above threshold limits.
MAX9034ASD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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 FAQ
1.How can I place an order for MAX9034ASD through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9034ASD 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 reliable?
The price and inventory of MAX9034ASD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9034ASD is usually 5 days.
3.What payment methods are accepted for MAX9034ASD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9034ASD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9034ASD?
MAX9034ASD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9034ASD 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?
For technical support, including MAX9034ASD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9034ASD requirements.
6.How does Aetrix verify that MAX9034ASD is sourced from the original manufacturer or authorized distributors?
All MAX9034ASD 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 meets industry standards.
7.What is the process for return or replacement of MAX9034ASD?
All MAX9034ASD units undergo pre-shipment inspection (PSI). If there is an issue with MAX9034ASD, 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 part is unused and in its original packaging.
Return procedure for MAX9034ASD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX9034ASD Tags
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NCX2200GMAZ
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