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Analog Devices Inc./Maxim Integrated MAX924ESE+
- Part No.:
- MAX924ESE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX924ESE+.pdf
- Description:
- IC COMPARATR 4 W/VOLT REF 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,610
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Product details
Overview
The MAX924ESE+ 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), consuming only 8.5μA typical supply current over –40°C to +85°C. It features TTL/CMOS-compatible outputs that source up to 40mA, input common-mode range from V– to V+ – 1.3V, and 12μs propagation delay at 10mV overdrive - ideal for low-power battery monitoring and window detection in portable instrumentation.
For engineers reviewing the MAX924ESE+ datasheet, MAX924ESE+ pinout, MAX924ESE+ application, or MAX924ESE+ equivalent, key selection criteria include its quad-channel configuration, internal reference accuracy, guaranteed operation down to 2.5V supply, GND-referenced output swing, and SO-16 narrow-body package compatibility with space-constrained industrial sensor nodes.
Technical Context
The MAX924ESE+ integrates four independent comparators sharing a single precision 1.182V reference referenced to V–, with no internal hysteresis - requiring external positive feedback for hysteresis implementation. Its output stage sources up to 40mA continuously without crowbar current, eliminating supply-line glitches during transitions and enabling stable operation without tight PCB layout constraints.
Input voltage range extends from V– to V+ – 1.3V, supporting rail-to-rail sensing in single-supply systems; outputs swing from V+ to GND (not V–), ensuring TTL compatibility when V– = GND and V+ = +5V ±10%. The device is specified for –40°C to +85°C operation and supports low-voltage operation down to 2.5V (with degraded performance below that threshold).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Number of Comparators | 4 independent channels - enables compact window/level detection without multiple ICs |
| Supply Voltage Range | +2.5V to +11V single supply or ±1.25V to ±5.5V dual supply - supports both battery-powered and bipolar signal conditioning |
| Quiescent Current (E temp) | 8.5μA max at –40°C to +85°C - enables multi-year operation on coin-cell batteries |
| Reference Voltage | 1.182V ±1% (0°C to +70°C), referenced to V– - provides stable threshold generation without external components |
| Propagation Delay | 12μs at 10mV overdrive - sufficient for slow-varying signals like temperature or voltage monitoring |
| Output Drive Capability | Sources ≥40mA continuously into V+ - directly drives LEDs, small relays, or logic inputs without buffer stages |
| Input Common-Mode Range | V– to V+ – 1.3V - allows sensing near ground or high-side rails in 3V/5V systems |
Pinout & Package
MAX924ESE+ uses a 16-pin narrow SO (SOIC-N) package, 7.5mm × 4.4mm body, 1.27mm pitch, with exposed pad not electrically connected. Pin 14 is GND, pin 9 is V–, and pins 1–2, 15–16 are comparator outputs referenced to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 15, 16 | OUTB, OUTA, OUTD, OUTC | Comparator outputs swinging from V+ to GND - TTL-compatible, sink/source capable, no V– connection required |
| 3 | V+ | Positive supply input - accepts up to +11V or +5.5V in dual-supply mode |
| 4, 6, 10, 12 | INA–, INB–, INC–, IND– | Inverting inputs for each comparator - support rail-to-rail common-mode range |
| 5, 7, 11, 13 | INA+, INB+, INC+, IND+ | Noninverting inputs for each comparator - high-impedance (±0.01nA leakage) |
| 8 | REF | 1.182V reference output referenced to V– - supplies stable threshold for all four comparators |
| 9 | V– | Negative supply - connect to GND for single-supply operation; defines REF offset |
| 14 | GND | Ground reference for output stage - separate from V– to enable true GND-referenced outputs |
Key Features
| Feature | Design Value |
|---|---|
| Quad comparator + reference in one SO-16 | Reduces BOM count and board area vs. discrete solutions for multi-threshold detection |
| 40mA continuous output source current | Drives LEDs, optocouplers, or logic gates directly - eliminates external driver transistors |
| No crowbar current during switching | Prevents supply rail disturbance and eliminates need for heavy local bypassing |
| 1.182V ±1% internal reference (V– referenced) | Enables accurate, temperature-stable thresholds without external precision resistors |
| Input range includes negative rail | Supports ground-sensing and low-side current monitoring without level-shifting circuitry |
Applications
| Battery Voltage Monitor | Window Detector |
|---|---|
Use Scenario: Monitoring Li-ion cell voltage across 2.5V–4.2V range to trigger under/over-voltage shutdown in portable medical devices. IC Role / Device Role / Timing Role: Quad comparator compares divided battery voltage against four reference-derived thresholds using external resistor dividers. Use Value: Single MAX924ESE+ replaces four discrete comparators and reference IC, reducing footprint by >60% and quiescent current to <9μA. | Use Scenario: Detecting valid 5V power supply range (4.75V–5.25V) in industrial PLC I/O modules with hysteresis to prevent chatter. IC Role / Device Role / Timing Role: Two comparators configured as high/low threshold detectors; remaining two used for status flag generation and redundancy. Use Value: Internal 1.182V reference ensures consistent trip points across temperature; GND-referenced outputs interface directly with MCU GPIOs. |
| LED Bar-Graph Display | Auto-Power-Off Circuit |
Use Scenario: Driving 4-segment LED bar-graph indicating analog sensor output level (e.g., pressure or humidity) in handheld test equipment. IC Role / Device Role / Timing Role: Each comparator drives one LED via current-limiting resistor; REF sets uniform threshold ladder via resistor network. Use Value: 40mA per output enables full-brightness LED drive without external transistors; ultra-low supply current preserves battery life. | Use Scenario: Enabling timed shutdown of auxiliary circuits (e.g., display backlight) after user inactivity in battery-powered data loggers. IC Role / Device Role / Timing Role: One comparator acts as RC timer comparator; others reserved for fault detection or secondary timing functions. Use Value: 8.5μA quiescent current ensures >1-year standby life on CR2032; internal reference eliminates drift-related timing errors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM339DR | No internal reference; open-collector outputs; 2mA supply current; wider supply range (2V–36V); requires pull-up resistors | Needs external reference and pull-ups; better for high-voltage industrial sensing but higher power and larger solution size | Select when cost sensitivity outweighs power/performance needs and external components are acceptable |
| TLV3704IPW | Rail-to-rail inputs/outputs; 1.2μA supply current; no reference; 360μs propagation delay; 14-pin TSSOP | Lower power but slower response; lacks integrated reference - requires external precision voltage source | Choose for ultra-low-power applications where speed <100μs is acceptable and reference is available elsewhere |
Compared with LM339DR and TLV3704IPW, the MAX924ESE+ uniquely combines quad comparators, integrated ±1% reference, GND-referenced push-pull outputs, and sub-10μA quiescent current - making it optimal for compact, battery-critical, self-contained threshold detection where minimizing external components is essential.
Availability
MAX924ESE+ is available at Aetrix Electronics and suitable for battery-powered systems, threshold detectors, window comparators, and oscillator circuits requiring stable component supply and long-term lifecycle support.
Supply support for MAX924ESE+ 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, mixed-signal, and power management ICs for industrial, automotive, and computing applications.
The MAX921–MAX924 family was engineered specifically for ultra-low-power, single-supply sensing and threshold detection - prioritizing micropower operation, integrated references, and robust output drive in minimal packages.
FAQ
What is the maximum supply voltage for MAX924ESE+ in single-supply operation?
The MAX924ESE+ supports a single-supply voltage range of +2.5V to +11V. When operated with V– tied to GND, the absolute maximum voltage applied between V+ and GND is +11V. Exceeding this risks permanent damage, as confirmed in the Absolute Maximum Ratings table. Operation above +11V is not supported, even briefly.
Does MAX924ESE+ have internal hysteresis, and how is it configured?
No, the MAX924ESE+ does not include internal hysteresis. Unlike the MAX921/MAX923, it requires external positive-feedback resistor networks (e.g., R1/R2/R3 per comparator) to implement hysteresis, as detailed in Figure 4 of the datasheet. This design allows flexible hysteresis tuning but adds two resistors per channel.
Can MAX924ESE+ operate from a 3.3V supply, and what is its typical supply current at that voltage?
Yes, MAX924ESE+ is fully specified for 3.3V single-supply operation. At V+ = 3.3V, TA = +25°C, and E-temp range (–40°C to +85°C), the typical supply current is 6.2μA, with a maximum of 8.0μA - verified in the "Electrical Characteristics: 3V OPERATION" table.
What is the function of the GND pin (Pin 14) versus the V– pin (Pin 9) in MAX924ESE+?
Pin 14 (GND) is the ground reference for the output stage and must be connected to system ground. Pin 9 (V–) is the negative supply terminal for the comparator core and reference - it can be tied to GND for single-supply use or to a negative rail (e.g., –5V) for dual-supply operation. REF is referenced to V–, not GND.
Is MAX924ESE+ pin-compatible with other devices in the MAX92x family?
No, MAX924ESE+ is not pin-compatible with MAX921/922/923 due to its 16-pin SO package and distinct pinout (e.g., separate GND and V– pins, four dedicated outputs). The MAX921–MAX923 use 8-pin packages. Direct replacement requires PCB redesign; only functional equivalence - not mechanical or electrical drop-in - is supported.
MAX924ESE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- 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+ FAQ
1.How can I place an order for MAX924ESE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX924ESE+ 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+ reliable?
The price and inventory of MAX924ESE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX924ESE+ is usually 5 days.
3.What payment methods are accepted for MAX924ESE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX924ESE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX924ESE+?
MAX924ESE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX924ESE+ 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+?
For technical support, including MAX924ESE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX924ESE+ requirements.
6.How does Aetrix verify that MAX924ESE+ is sourced from the original manufacturer or authorized distributors?
All MAX924ESE+ 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+ meets industry standards.
7.What is the process for return or replacement of MAX924ESE+?
All MAX924ESE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX924ESE+, 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+ part is unused and in its original packaging.
Return procedure for MAX924ESE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX924ESE+ 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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