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Analog Devices Inc./Maxim Integrated MAX9092AKA+T
- Part No.:
- MAX9092AKA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- SOT-23-8
- Datasheet:
-
MAX9092AKA+T.pdf
- Description:
- IC COMPARATOR 2 GEN PUR SOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:3,430
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Product details
Overview
The MAX9092AKA+T from Maxim Integrated is a dual-channel, low-voltage, open-drain comparator IC designed for precision threshold detection in space-constrained portable systems. It operates from +1.8V to +5.5V, delivers 100ns propagation delay (100mV overdrive), features ±0.4mV typical input offset voltage, and supports rail-to-rail input common-mode range down to ground - enabling direct sensing of battery or sensor signals in mobile power management circuits.
For engineers reviewing the MAX9092AKA+T datasheet, MAX9092AKA+T pinout, MAX9092AKA+T application, or MAX9092AKA+T equivalent, key selection criteria include its dual open-drain output architecture, guaranteed -40°C to +125°C automotive temperature operation, 65µA per channel supply current at 5V, and compatibility with LM393/LM339-based designs requiring low-power, small-footprint comparators.
Technical Context
The MAX9092AKA+T implements a BiCMOS process-based dual-comparator core with no phase reversal under overdriven inputs and rail-to-rail input stage that accepts common-mode voltages from VSS − 0.1V to VDD − 0.8V. Its open-drain outputs require external pull-up resistors and support wired-OR logic configurations for level translation or interrupt generation.
Unlike the hysteresis-equipped MAX9093/MAX9095 variants, the MAX9092AKA+T has no internal hysteresis - making it suitable for applications where precise, adjustable trip points are required via external feedback networks. Propagation delay remains stable across 1.8V–5.5V supply range and shows minimal variation over temperature (±10ns from -40°C to +125°C at 100mV overdrive).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +1.8V to +5.5V - enables direct interface with Li-ion, 3.3V, and 5V logic domains without level shifters |
| Propagation Delay | 100ns (tPLH/tPHL, 100mV overdrive) - supports >1MHz signal monitoring in battery fuel gauging or fast fault detection |
| Input Offset Voltage | 0.4mV (typ), 7mV (max) - ensures sub-millivolt threshold accuracy for precision voltage window detection |
| Supply Current | 130µA (typ, both channels at +25°C, VDD = 5V) - extends battery life in always-on wake-up or supervisory circuits |
| Input Common-Mode Range | VSS − 0.1V to VDD − 0.8V - allows direct connection to ground-referenced sensors or battery terminals |
| Output Type | Open-drain - permits flexible pull-up to higher voltage rails (e.g., 12V) and multi-source interrupt bus sharing |
| Operating Temperature | -40°C to +125°C - qualified for under-hood automotive, industrial control, and high-reliability portable equipment |
Pinout & Package
MAX9092AKA+T is housed in an 8-pin SOT23 package (JEDEC MO-178AA), measuring 2.9mm × 1.6mm × 1.1mm, with gull-wing leads and RoHS-compliant matte-tin plating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTA | Open-drain output of Comparator A - requires external pull-up; sinks up to 16mA at VOUT ≤ 1.5V |
| 2 | INA− | Inverting input of Comparator A - referenced against INA+ to determine output state; accepts −0.1V to VDD − 0.8V |
| 3 | INA+ | Noninverting input of Comparator A - primary threshold reference node; matched bias current minimizes offset error |
| 4 | VSS | Negative supply terminal - must be connected to system ground; serves as return path for input and output currents |
| 5 | INB+ | Noninverting input of Comparator B - independent threshold input; electrically isolated from INA± |
| 6 | INB− | Inverting input of Comparator B - forms second independent comparison pair with INB+ |
| 7 | OUTB | Open-drain output of Comparator B - functionally identical to OUTA; supports separate or shared pull-up |
| 8 | VDD | Positive supply terminal - powers both comparators; bypass capacitor (0.1µF) required between VDD and VSS |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal on overdrive | Prevents false triggering when inputs exceed common-mode limits - critical for undervoltage/overvoltage lockout |
| Rail-to-rail input capability | Supports direct sensing of 0V–5V analog signals without external level-shifting circuitry |
| Low 120mV output saturation voltage | Ensures clean logic-low assertion even under 4mA sink load - improves noise margin in noisy environments |
| 65µA/channel supply current | Enables microamp-level system standby current in battery-backed supervisors and wake-up monitors |
| 100.4°C/W θJA (TSSOP) | Validated thermal performance allows reliable operation at full rating in compact PCB layouts without heatsinking |
Applications
| Battery Voltage Monitoring | Portable Device Power Sequencing |
|---|---|
Use Scenario: Real-time monitoring of single-cell Li-ion battery voltage during charge/discharge cycles to trigger low-battery warnings or cutoff. IC Role / Device Role / Timing Role: Dual comparator configured as window detector - one channel for upper threshold (4.2V), one for lower threshold (3.0V). Use Value: Enables accurate, low-power battery health assessment with <1µA quiescent contribution per channel at 1.8V supply. | Use Scenario: Controlled power-up sequence for multi-rail SoC platforms (e.g., display + processor + RF subsystem) in handheld medical devices. IC Role / Device Role / Timing Role: Dual comparator compares delayed enable signals against reference voltages to gate power MOSFETs in strict order. Use Value: Eliminates need for dedicated power sequencer IC - reduces BOM count while maintaining ±0.4mV threshold repeatability across temperature. |
| Industrial Sensor Interface | Automotive Cabin Control Panel |
Use Scenario: Converting analog outputs from thermistors or pressure transducers into digital status flags for PLC input modules. IC Role / Device Role / Timing Role: Comparator A detects overtemperature condition; Comparator B validates sensor integrity via current-loop compliance check. Use Value: Input common-mode range extending to ground supports 2-wire sensor topologies without bias resistors or op-amp buffers. | Use Scenario: Detecting button press events and backlight dimming thresholds in automotive HVAC control panels operating across extended temperature ranges. IC Role / Device Role / Timing Role: One comparator monitors mechanical switch closure (pull-up to 5V); the other validates PWM-dimmed LED current sense voltage. Use Value: Guaranteed operation from -40°C to +125°C and 100ns response ensure reliable human-machine interface behavior in parked-car summer heat or cold-start conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual open-drain comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM393DR | Wider supply range (2–36V), higher input offset (7mV typ), slower propagation (300ns), no guaranteed 1.8V operation | Preferred for industrial 24V systems; unsuitable for sub-2V battery monitoring | Select LM393DR only if supply exceeds 2.5V and timing budget allows >200ns delay |
| TLV3702IDR | Lower supply current (55µA/ch), rail-to-rail inputs/outputs, but push-pull (not open-drain) outputs and no automotive temp grade | Used in ultra-low-power wearables; incompatible with wired-OR interrupt buses | Choose TLV3702IDR only when push-pull drive and <2.5V operation are mandatory, and automotive qualification is not required |
Compared with LM393DR and TLV3702IDR, the MAX9092AKA+T uniquely balances automotive-grade temperature range, true 1.8V operation, open-drain flexibility, and sub-100ns speed - making it optimal for next-generation battery-powered automotive and portable electronics where footprint, power, and reliability are co-constrained.
Availability
MAX9092AKA+T is available at Aetrix Electronics and suitable for battery voltage monitoring, portable device power sequencing, and industrial sensor interface applications requiring stable component supply across automotive and industrial temperature grades.
Supply support for MAX9092AKA+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) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, automotive, and communications markets.
The MAX9092AKA+T belongs to Maxim's general-purpose comparator product line, engineered specifically for low-voltage, low-power, and space-constrained applications in portable and automotive electronics where precision, speed, and ruggedness are essential.
FAQ
What is the minimum operating supply voltage for the MAX9092AKA+T?
The MAX9092AKA+T is fully specified to operate down to +1.8V, with guaranteed performance including propagation delay, input offset, and output saturation voltage across the full -40°C to +125°C temperature range. At 1.8V, supply current drops to ~50µA per channel, supporting ultra-low-power battery monitoring applications where traditional comparators fail to start or behave predictably.
Does the MAX9092AKA+T include internal hysteresis?
No, the MAX9092AKA+T does not include internal hysteresis. Unlike the MAX9093/MAX9095 variants in the same family, the MAX9092AKA+T is designed for applications requiring precise, externally adjustable thresholds - such as window comparators or zero-crossing detectors where user-defined hysteresis is added via positive feedback resistors. This absence of fixed hysteresis preserves threshold accuracy and avoids unintended dead-band effects.
Can the MAX9092AKA+T drive a 10kΩ pull-up resistor to 5V while maintaining logic-low levels below 200mV?
Yes, the MAX9092AKA+T can reliably sink current into a 10kΩ pull-up to 5V and maintain VOL ≤ 120mV (typ) at ISINK ≤ 1mA, well within specification. With 10kΩ pull-up, sink current is ~0.5mA - resulting in <100mV output low voltage at +25°C and <400mV at +125°C, satisfying standard TTL and CMOS input low-level requirements across temperature.
Is the MAX9092AKA+T pin-compatible with the LM393?
Yes, the MAX9092AKA+T is explicitly designed as a pin-for-pin compatible replacement for the LM393 in 8-pin SOT23 packages. Pin mapping matches exactly: VDD (pin 8), GND/VSS (pin 4), OUTA (pin 1), OUTB (pin 7), INA+/INB+ (pins 3/5), and INA−/INB− (pins 2/6). No PCB redesign is needed when upgrading from LM393 to MAX9092AKA+T for improved speed, lower power, or extended temperature operation.
What is the maximum capacitive load the MAX9092AKA+T outputs can drive without significant propagation delay degradation?
The MAX9092AKA+T maintains stable 100ns propagation delay (100mV overdrive) up to 50pF capacitive load, as verified in typical operating characteristics. Beyond 50pF, delay increases linearly - reaching ~150ns at 200pF. For loads >100pF, a series resistor (e.g., 50Ω) placed near the output pin is recommended to damp ringing and preserve edge integrity in long-trace or high-noise environments.
MAX9092AKA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- SOT-23-8
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- Open-Drain
- Voltage - Supply, Single/Dual (±):
- 1.8V ~ 5.5V
- :
- 7mV @ 5V
- Voltage - Input Offset (Max):
- 0.25µA @ 5V
- Current - Input Bias (Max):
- 35mA @ 5V
- Current - Output (Typ):
- 200µA
- Current - Quiescent (Max):
- 90dB PSRR
- CMRR, PSRR (Typ):
- 110ns
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- SOT-23-8
MAX9092AKA+T FAQ
1.How can I place an order for MAX9092AKA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9092AKA+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 MAX9092AKA+T reliable?
The price and inventory of MAX9092AKA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9092AKA+T is usually 5 days.
3.What payment methods are accepted for MAX9092AKA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9092AKA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9092AKA+T?
MAX9092AKA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9092AKA+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 MAX9092AKA+T?
For technical support, including MAX9092AKA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9092AKA+T requirements.
6.How does Aetrix verify that MAX9092AKA+T is sourced from the original manufacturer or authorized distributors?
All MAX9092AKA+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 MAX9092AKA+T meets industry standards.
7.What is the process for return or replacement of MAX9092AKA+T?
All MAX9092AKA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX9092AKA+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 MAX9092AKA+T part is unused and in its original packaging.
Return procedure for MAX9092AKA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX9092AKA+T 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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