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Analog Devices Inc./Maxim Integrated MAX924CSE-T
- Part No.:
- MAX924CSE-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX924CSE-T.pdf
- Description:
- IC COMPARATR 4 W/VOLT REF 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,666
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Product details
Overview
MAX924CSE-T from Maxim Integrated is a quad micropower comparator with integrated 1.182V ±1% bandgap reference, operating from +2.5V to +11V single supply (or ±1.25V to ±5.5V dual supply), delivering 4.0µA typical supply current at +25°C, 12µs propagation delay (10mV overdrive), and TTL/CMOS-compatible outputs that source up to 40mA - ideal for battery-powered threshold detection in portable instrumentation.
For engineers reviewing the MAX924CSE-T datasheet, MAX924CSE-T pinout, MAX924CSE-T application, or MAX924CSE-T equivalent, key selection considerations include its 16-pin narrow SO package, internal reference accuracy, quad-channel independent operation, low-voltage compatibility down to 2.5V, and absence of internal hysteresis requiring external feedback configuration.
Technical Context
The MAX924CSE-T integrates four independent comparators sharing a common precision 1.182V reference output (pin 8), with each comparator featuring rail-to-rail input range (V− to V+ − 1.3V) and output swing from V+ to GND. Its output stage eliminates crowbar current during transitions, minimizing supply-induced parasitic feedback.
Unlike the MAX921/MAX923, the MAX924CSE-T lacks a dedicated HYST pin; hysteresis must be implemented externally via positive feedback resistors per comparator. It supports single-supply operation with V− tied to GND (pin 9), and maintains functional operation down to 1V total supply voltage - though reference and timing specs degrade below 2.5V.
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 interfacing with 3V/5V logic and bipolar sensor signals. |
| Quiescent Current | 8.5µA max (C temp range, +25°C) - ensures multi-year battery life in always-on monitoring systems. |
| Reference Voltage | 1.182V ±1% (0°C to +70°C) referenced to V− - provides stable, factory-trimmed threshold for precision level detection. |
| Propagation Delay | 12µs typical (10mV overdrive, 100pF load) - supports kHz-range window detection and oscillator frequencies. |
| Output Drive | Sources ≥40mA continuously into V+; sinks ≥5mA into GND - 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 signals without level-shifting circuitry. |
| Operating Temperature | 0°C to +70°C - qualified for commercial-grade embedded control and industrial HMI applications. |
Pinout & Package
MAX924CSE-T is housed in a 16-pin narrow SO (Small Outline) package, 3.9mm width, with standard 0.050" pitch and gull-wing leads. Pin 14 is GND; pin 9 is V− (tied to GND for single-supply use); pins 1–2, 15–16 are comparator outputs; pins 4–5, 6–7, 10–11, 12–13 are input pairs; pin 8 is REF; pin 3 is V+.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 15, 16 | OUTB, OUTA, OUTD, OUTC | Four independent open-collector-like outputs sinking to GND and sourcing to V+ - enable wired-OR logic or direct LED driving. |
| 3 | V+ | Positive supply input - must be decoupled locally; supports up to +11V for wide-input-range sensing. |
| 4, 5, 6, 7, 10, 11, 12, 13 | INA−/+, INB−/+, INC−/+, IND−/+ | Differential input pairs for four comparators - inputs tolerate ±0.3V beyond rails, simplifying ESD protection design. |
| 8 | REF | 1.182V reference output - supplies precise threshold for all four comparators; not internally bypassed. |
| 9 | V− | Negative supply terminal - connect to GND for single-supply operation; defines reference and output swing baseline. |
| 14 | GND | Ground return - separate from V− in layout; tie to system GND plane for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Quad comparator + reference in one IC | Reduces BOM count and PCB area vs. discrete solutions; eliminates matching drift between channels. |
| No crowbar current during switching | Prevents supply rail disturbance and eliminates need for heavy local decoupling on V+ and GND. |
| 40mA continuous output source capability | Drives 4× LEDs (e.g., bar-graph display) or logic gates directly - avoids external driver transistors. |
| Input range includes negative rail | Enables ground-referenced signal monitoring (e.g., battery voltage drop below 0.5V) without level shifters. |
| Low 8.5µA max supply current | Supports >10-year operation on CR2032 coin cell in wake-on-threshold applications. |
Applications
| Threshold Detector | Window Comparator |
|---|---|
Use Scenario: Monitoring battery voltage in portable medical devices to trigger low-battery alert at 3.2V. IC Role / Device Role / Timing Role: MAX924CSE-T comparator A compares battery voltage against REF-derived threshold; output drives MCU interrupt pin. Use Value: Uses internal 1.182V reference with resistor divider to set precise 3.2V trip point; ultra-low quiescent current preserves battery life during sleep. | Use Scenario: Validating 5V power rail in industrial controller - flagging undervoltage (<4.75V) and overvoltage (>5.25V). IC Role / Device Role / Timing Role: MAX924CSE-T comparators A and B form high/low thresholds using REF and resistor networks; outputs feed AND gate for power-good signal. Use Value: Quad integration allows full window detection in one package; no external reference needed reduces component count and calibration drift. |
| Oscillator Circuit | LED Bar-Graph Display |
Use Scenario: Building relaxation oscillator for low-power status blinker in IoT sensor node. IC Role / Device Role / Timing Role: MAX924CSE-T comparator C configured with RC network and REF to generate ~1Hz square wave. Use Value: Propagation delay stability and rail-to-rail input enable predictable frequency over temperature and supply variation. | Use Scenario: Four-level battery charge indicator on handheld test equipment. IC Role / Device Role / Timing Role: MAX924CSE-T drives four LEDs directly via OUTA–OUTD, each activated at 25%/50%/75%/100% battery voltage. Use Value: 40mA output drive eliminates current-limiting resistors and external drivers - simplifies layout and improves efficiency. |
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; higher 2mA supply current; open-collector outputs only; wider 2V–36V supply range. | Requires external reference and pull-up resistors; unsuitable for ultra-low-power battery designs. | Select when cost is primary and supply current >10µA is acceptable; verify external reference accuracy and layout noise immunity. |
| TLV3704IPW | Rail-to-rail inputs/outputs; 1.2µA supply current; no internal reference; 360µs propagation delay; 14-pin TSSOP. | Better low-power performance but slower response; requires external reference and hysteresis network. | Choose for sub-µA standby current where speed <10kHz is sufficient; confirm REF sourcing capability matches TLV3704's input bias. |
Compared with LM339DR and TLV3704IPW, the MAX924CSE-T uniquely combines integrated precision reference, 40mA sourcing output, and 8.5µA max quiescent current - making it optimal for space-constrained, battery-critical quad threshold detection where external components must be minimized.
Availability
MAX924CSE-T is available at Aetrix Electronics and suitable for battery-powered systems, threshold detectors, window comparators, and oscillator circuits requiring stable component supply with guaranteed long-term manufacturability.
Supply support for MAX924CSE-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, medical, and communications markets.
The MAX921–MAX924 family was engineered specifically for ultra-low-power, single-supply comparator applications demanding integrated reference accuracy, robust output drive, and minimal board space - targeting portable instrumentation and energy-harvesting systems.
FAQ
What is the maximum supply voltage for MAX924CSE-T in single-supply operation?
The MAX924CSE-T supports a maximum single-supply voltage of +11V (V+ to GND), with V− tied to GND (pin 9). Absolute maximum rating is +12V, but operation above +11V violates specification limits and risks parametric degradation. For dual-supply use, total voltage (V+ to V−) must not exceed ±5.5V.
Does MAX924CSE-T have internal hysteresis like MAX921 or MAX923?
No, MAX924CSE-T does not include internal hysteresis or a HYST pin. Hysteresis must be implemented externally using positive feedback resistors per comparator, as shown in Figure 4 of the datasheet. This differs from MAX921/MAX923, which provide programmable hysteresis via the HYST pin and two resistors.
Can MAX924CSE-T operate from a 3.3V supply?
Yes, MAX924CSE-T is fully specified for operation from +2.5V to +11V single supply. At +3.3V, it delivers 6.5µA typical supply current (C temp range), 1.182V reference remains accurate, and propagation delay increases slightly to ~14µs - all within guaranteed specifications for commercial-temperature applications.
What is the function of pin 9 (V−) on MAX924CSE-T?
Pin 9 (V−) is the negative supply terminal. In single-supply operation, it must be connected to system GND (pin 14). In dual-supply mode, it connects to the negative rail (e.g., −5V). The internal reference (pin 8) and output swing are referenced to V−, not GND - correct V− connection is essential for proper REF accuracy and output logic levels.
Is the reference output (pin 8) of MAX924CSE-T buffered?
No, the REF output (pin 8) is unbuffered and has limited drive capability: ±8µA sink/source at +25°C (C temp range). Loading beyond this degrades reference accuracy and stability. Do not bypass REF; avoid capacitive coupling from outputs or noisy traces, as crosstalk can increase effective noise to ~1mV peak-to-peak.
MAX924CSE-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:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 16-SOIC
MAX924CSE-T FAQ
1.How can I place an order for MAX924CSE-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX924CSE-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 MAX924CSE-T reliable?
The price and inventory of MAX924CSE-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX924CSE-T is usually 5 days.
3.What payment methods are accepted for MAX924CSE-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX924CSE-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX924CSE-T?
MAX924CSE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX924CSE-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 MAX924CSE-T?
For technical support, including MAX924CSE-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX924CSE-T requirements.
6.How does Aetrix verify that MAX924CSE-T is sourced from the original manufacturer or authorized distributors?
All MAX924CSE-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 MAX924CSE-T meets industry standards.
7.What is the process for return or replacement of MAX924CSE-T?
All MAX924CSE-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX924CSE-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 MAX924CSE-T part is unused and in its original packaging.
Return procedure for MAX924CSE-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX924CSE-T 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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