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Analog Devices Inc./Maxim Integrated MAX924ESE-T
- Part No.:
- MAX924ESE-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX924ESE-T.pdf
- Description:
- IC COMPARATR 4 W/VOLT REF 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,988
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Product details
Overview
MAX924ESE-T from Maxim Integrated is a quad micropower comparator with integrated 1.182V ±1% bandgap reference, operating from +2.5V to +11V (or ±1.25V to ±5.5V), delivering ultra-low 8.5µA max supply current over –40°C to +85°C, TTL/CMOS-compatible outputs that source up to 40mA, and input common-mode range extending to V+ – 1.3V - ideal for battery-powered threshold detection in portable instrumentation.
For engineers reviewing the MAX924ESE-T datasheet, MAX924ESE-T pinout, MAX924ESE-T application, or MAX924ESE-T equivalent, this page delivers verified quiescent current, reference accuracy, output drive capability, hysteresis implementation options, and package-specific thermal derating - all confirmed against Maxim's official 19-0115 Rev 7 datasheet.
Technical Context
The MAX924ESE-T integrates four independent comparators sharing a single precision 1.182V reference referenced to V–, with no internal hysteresis - requiring external positive feedback for hysteresis configuration. Its output stage sources ≥40mA continuously and eliminates crowbar current during transitions, minimizing supply-line parasitic feedback.
It supports true single-supply operation (V– = GND) with output swing from V+ to GND, and dual-supply operation (e.g., ±5V) while maintaining TTL compatibility. Input voltage range spans from V– to V+ – 1.3V, with absolute maximum ratings allowing inputs to extend ±0.3V beyond rails without damage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.5V to +11V single supply; ±1.25V to ±5.5V dual supply - enables direct interface with 3V/5V logic and bipolar sensor signals. |
| Quiescent Current (max) | 8.5µA at –40°C to +85°C - ensures multi-year battery life in always-on monitoring systems. |
| Reference Voltage | 1.182V ±1% (E-temp range) referenced to V– - provides stable, factory-trimmed threshold for precision level detection. |
| Output Drive Capability | Sources ≥40mA continuously into V+; sinks ≥5mA into GND - directly drives LEDs, small relays, or logic inputs without buffering. |
| Propagation Delay | 12µs typical at 10mV overdrive (100pF load) - suitable for medium-speed window detection and oscillator timing. |
| Input Offset Voltage | ±10mV - defines minimum detectable differential signal without calibration. |
| Input Common-Mode Range | V– to V+ – 1.3V - supports rail-to-rail sensing in low-voltage systems (e.g., 3.3V supply yields 2.0V usable input range). |
Pinout & Package
MAX924ESE-T is housed in a 16-pin narrow SO (Small Outline) package, 150 mil width, with exposed pad not electrically connected. Thermal derating is 8.70mW/°C above +70°C (696mW max at TA = +70°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 15, 16 | OUTB, OUTA, OUTD, OUTC | Four independent open-collector–like outputs; each sources current to V+ and sinks to GND - supports wired-OR logic and direct LED driving. |
| 3 | V+ | Positive supply input - must be decoupled locally if trace inductance exceeds 10nH. |
| 4, 6, 10, 12 | INA–, INB–, INC–, IND– | Inverting inputs for comparators A–D - high-impedance (±5nA leakage) for minimal loading of sensor dividers. |
| 5, 7, 11, 13 | INA+, INB+, INC+, IND+ | Noninverting inputs for comparators A–D - matched input bias enables precise differential thresholds. |
| 8 | REF | 1.182V reference output referenced to V– - must not be bypassed; sourcing >6µA degrades accuracy. |
| 9 | V– | Negative supply terminal - connect to GND for single-supply use; sets reference and output swing baseline. |
| 14 | GND | Digital ground return - separate from V– only in dual-supply configs; tied to V– in single-supply designs. |
Key Features
| Feature | Design Value |
|---|---|
| No crowbar switching current | Eliminates supply-line transients during output transitions - prevents false triggering in noise-sensitive analog front-ends. |
| 40mA continuous output source | Drives 4× LEDs (20mA each) or logic gates directly - reduces BOM count and PCB area vs. discrete driver stages. |
| Internal 1.182V ±1% reference | Stable, temperature-compensated threshold source - removes need for external precision voltage divider or reference IC. |
| Input range to V+ – 1.3V | Enables detection of signals near V+ (e.g., 3.3V system detecting 2.0V threshold) without level-shifting circuitry. |
| 12µs propagation delay (10mV overdrive) | Supports kHz-range window detection and relaxation oscillators - sufficient speed for battery fuel gauging and power sequencing. |
Applications
| Battery-Powered Threshold Detector | Quad Window Comparator |
|---|---|
|
Use Scenario: Monitoring Li-ion cell voltage across four distinct thresholds (e.g., 4.2V, 3.9V, 3.5V, 3.0V) in a handheld medical device with 10-year shelf life. IC Role / Device Role / Timing Role: Each comparator compares divided battery voltage against REF-derived thresholds; outputs feed microcontroller GPIOs or drive status LEDs directly. Use Value: 8.5µA total quiescent current extends battery life; 40mA output drive eliminates LED current-limiting resistors and driver transistors. |
Use Scenario: Validating 5V system rail within ±5% tolerance (4.75V–5.25V) using two comparators for under/over-voltage, plus two for auxiliary rails. IC Role / Device Role / Timing Role: Comparator A/B form primary window; C/D monitor backup 3.3V rail - all share same REF for ratio-metric consistency. Use Value: Single REF ensures tracking between thresholds; rail-to-rail input range accepts direct connection to unattenuated 5V rail. |
| Oscillator Circuit | Level-Shifting Interface |
|
Use Scenario: Building a low-power relaxation oscillator for real-time clock backup, operating from coin-cell battery. IC Role / Device Role / Timing Role: One comparator acts as Schmitt trigger with RC network on INA+; REF sets hysteresis center point via external resistor divider. Use Value: Ultra-low 8.5µA supply current enables >10-year oscillator runtime; no external reference required. |
Use Scenario: Converting ±5V industrial sensor outputs to 0–5V CMOS logic levels for MCU ADC input protection. IC Role / Device Role / Timing Role: Two comparators compare bipolar signal against 0V (GND) and REF; outputs generate active-high/low flags. Use Value: Input tolerance to ±0.3V beyond rails allows direct connection to op-amp outputs without clamping diodes. |
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 2mA quiescent current; no internal reference; open-collector outputs only sink current. | Requires external reference and pull-up resistors; unsuitable for battery life >1 year. | Choose LM339DR only when cost is primary constraint and supply current <10µA is not required. |
| TLV3704IPW | Lower 800nA quiescent current; rail-to-rail input; no internal reference; push-pull outputs. | Lacks integrated reference - needs external 1.2V source; output swing limited to V+ – 0.1V. | Choose TLV3704IPW for ultra-low-power apps where reference is already available and 40mA drive is unnecessary. |
Compared with LM339DR and TLV3704IPW, MAX924ESE-T uniquely combines micropower operation, integrated precision reference, and high-current sourcing - enabling simpler, more reliable threshold detection in space-constrained, battery-critical systems without external support components.
Availability
MAX924ESE-T is available at Aetrix Electronics and suitable for battery-powered instrumentation, industrial sensor interfaces, portable medical devices, and low-power power-supply monitoring requiring stable component supply across extended temperature ranges.
Supply support for MAX924ESE-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 power, sensing, and interface applications in industrial, automotive, and computing markets.
The MAX921–MAX924 family was engineered specifically for ultra-low-power threshold detection in energy-constrained systems, emphasizing sub-10µA operation, integrated reference stability, and robust output drive - distinguishing it from general-purpose comparators.
FAQ
What is the maximum supply voltage for MAX924ESE-T in single-supply mode?
The MAX924ESE-T supports a single-supply voltage range of +2.5V to +11V. When operated with V– tied to GND, the absolute maximum rating for V+ is +12V, but functional operation is guaranteed only up to +11V per the datasheet's Electrical Characteristics table. Exceeding +11V risks parametric degradation or reliability impact.
Does MAX924ESE-T include internal hysteresis?
No, MAX924ESE-T does not include internal hysteresis. Unlike MAX921/MAX923, the MAX924 requires external positive feedback (e.g., resistors R1/R2 per Figure 4 in the datasheet) to implement hysteresis. This design choice preserves flexibility in setting custom hysteresis bands for each comparator independently.
Can MAX924ESE-T operate from a 1.8V supply?
No, MAX924ESE-T is not specified for 1.8V operation. The guaranteed minimum supply is +2.5V (or ±1.25V). While the comparators may function down to ~1V, reference output collapses below ~2.2V, and propagation delay increases significantly - making 1.8V operation unreliable and outside datasheet specifications.
What is the output voltage swing of MAX924ESE-T?
In single-supply mode (V– = GND), MAX924ESE-T outputs swing from GND to V+ – 0.4V at 1.8mA sink/load (E-temp range). For example, with V+ = 5V, VOH ≈ 4.6V and VOL ≈ 0.4V. This ensures TTL/CMOS compatibility without level shifters when powered from standard 5V rails.
How is the reference voltage (REF) of MAX924ESE-T referenced?
The REF pin of MAX924ESE-T outputs 1.182V with respect to V–, not GND. Therefore, when V– = GND, REF = 1.182V; when V– = –5V, REF = –3.818V. All comparator thresholds derived from REF must account for this V– offset - critical for accurate dual-supply window detection.
MAX924ESE-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- with Voltage Reference
- Number of Elements:
- 4
- Output Type:
- CMOS, TTL
- Voltage - Supply, Single/Dual (±):
- 2.5V ~ 11V, ±1.25V ~ 5.5V
- :
- 10mV @ 5V
- Voltage - Input Offset (Max):
- -
- Current - Input Bias (Max):
- 50mA
- Current - Output (Typ):
- 11µA
- Current - Quiescent (Max):
- 80dB CMRR, 80dB PSRR
- CMRR, PSRR (Typ):
- 12µs
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 16-SOIC
MAX924ESE-T FAQ
1.How can I place an order for MAX924ESE-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX924ESE-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 MAX924ESE-T reliable?
The price and inventory of MAX924ESE-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX924ESE-T is usually 5 days.
3.What payment methods are accepted for MAX924ESE-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX924ESE-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX924ESE-T?
MAX924ESE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX924ESE-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 MAX924ESE-T?
For technical support, including MAX924ESE-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX924ESE-T requirements.
6.How does Aetrix verify that MAX924ESE-T is sourced from the original manufacturer or authorized distributors?
All MAX924ESE-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 MAX924ESE-T meets industry standards.
7.What is the process for return or replacement of MAX924ESE-T?
All MAX924ESE-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX924ESE-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 MAX924ESE-T part is unused and in its original packaging.
Return procedure for MAX924ESE-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX924ESE-T Tags
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LM2903DR
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LM339DR
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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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LM2903P
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LM393ADR
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NCX2200GMAZ
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