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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:3,947
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Product details
Overview
The 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 (C-temp), 12µs propagation delay at 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 criteria include its 4-channel architecture, internal reference accuracy, rail-to-rail input range (V− to V+ − 1.3V), output swing from V+ to GND, and compatibility with low-voltage operation down to 2.5V.
Technical Context
The MAX924CSE+T integrates four independent comparators sharing a common precision 1.182V reference referenced to V−, with no internal hysteresis - requiring external positive feedback for hysteresis implementation. Its output stage eliminates crowbar current during transitions, minimizing supply-line parasitic feedback and enabling stable operation without strict layout constraints.
All four comparators feature identical input characteristics: input offset voltage ±10mV, input leakage ±0.01nA (C/E temp), common-mode range from V− to V+ − 1.3V, and output drive capability of 40mA continuous source / 50mA peak sink - supporting direct LED driving and logic-level translation in resource-constrained systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.5V to +11V single supply or ±1.25V to ±5.5V dual supply - enables use in both 3V/5V battery systems and bipolar signal monitoring. |
| Quiescent Current | 6.2µA typical at +25°C (C-temp) - ensures multi-year operation on coin-cell batteries in always-on sensing nodes. |
| Reference Voltage | 1.182V ±1% (0°C to +70°C) referenced to V− - provides stable, factory-trimmed threshold for accurate voltage monitoring without external components. |
| Propagation Delay | 12µs at 10mV overdrive - supports reliable timing-critical window detection and oscillator circuits up to ~10kHz. |
| Input Common-Mode Range | V− to V+ − 1.3V - allows direct interface to sensors and transducers operating near ground or rail, without level-shifting circuitry. |
| Output Drive | 40mA continuous source current, 50mA sink - drives LEDs, small relays, or logic inputs directly, eliminating external buffer stages. |
| Voltage Noise | 20µVRMS (100Hz–100kHz) - limits false triggering in high-gain analog front-ends with sub-mV thresholds. |
Pinout & Package
MAX924CSE+T is housed in a 16-pin narrow SO package (SOIC-N16), 7.5mm × 10.3mm body, 1.27mm pitch, with exposed pad not electrically connected. Pin 14 is GND; pins 1–2, 15–16 are comparator outputs; pins 4–5, 6–7, 10–11, 12–13 are differential input pairs; pin 8 is REF; pin 9 is V−; 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/sourcing to V+ or GND - each drives loads up to 40mA without external pull-ups. |
| 3 | V+ | Positive supply rail - accepts up to +11V; powers internal reference and all comparator cores. |
| 4, 5, 6, 7, 10, 11, 12, 13 | INA−, INA+, INB−, INB+, INC−, INC+, IND−, IND+ | Four matched differential input pairs - fully independent; input leakage <±0.01nA enables high-impedance sensor interfacing. |
| 8 | REF | 1.182V reference output referenced to V− - supplies precise threshold for all comparators; must not be bypassed. |
| 9 | V− | Negative supply terminal - connect to GND for single-supply operation; defines reference and output swing baseline. |
| 14 | GND | Ground connection - tied internally to V− for single-supply use; separates digital return from analog reference path. |
Key Features
| Feature | Design Value |
|---|---|
| Quad comparator + reference in one IC | Reduces BOM count and PCB area vs. discrete solutions - replaces four comparators plus external reference and resistors. |
| No internal hysteresis | Enables flexible, externally programmable hysteresis via resistor networks - avoids fixed hysteresis limitations in precision threshold applications. |
| 40mA continuous output source | Drives LEDs, optocouplers, or logic gates directly - eliminates need for external driver transistors in status indication circuits. |
| Rail-to-rail input range (V− to V+ − 1.3V) | Accepts signals from ground up to within 1.3V of V+ - supports direct interface to 0–5V sensors without attenuation or biasing. |
| Zero crowbar current during switching | Prevents supply glitches and crosstalk between channels - improves noise immunity in multi-comparator systems on shared rails. |
Applications
| Battery-Powered Threshold Detector | Window Comparator System |
|---|---|
|
Use Scenario: Monitoring lithium-ion cell voltage during charging/discharging in portable medical devices. IC Role / Device Role / Timing Role: Quad comparator compares cell voltage against under-voltage (4.0V), over-voltage (4.3V), and two intermediate safety thresholds. Use Value: Internal 1.182V reference enables precise resistor-divider thresholds; 4.0µA quiescent current extends battery life beyond 5 years in standby mode. |
Use Scenario: Power-good supervision in industrial PLC I/O modules with 24V DC supply rails. IC Role / Device Role / Timing Role: Two comparators form upper/lower bounds; third and fourth monitor auxiliary rails or temperature-derived voltages. Use Value: 12µs propagation delay ensures fast fault response (<100µs total); 40mA output drives relay coils directly for fail-safe shutdown. |
| Oscillator Circuit | LED Bar-Graph Level Gauge |
|
Use Scenario: Low-power relaxation oscillator for real-time clock backup or sensor wake-up timing. IC Role / Device Role / Timing Role: One comparator acts as Schmitt trigger; RC network sets frequency; internal reference stabilizes trip points. Use Value: ±1% reference accuracy maintains oscillator stability across temperature; ultra-low 4.0µA supply current minimizes timing drift from supply loading. |
Use Scenario: Four-segment battery charge indicator on handheld test equipment. IC Role / Device Role / Timing Role: Each comparator drives one LED via dedicated output; resistor ladder sets 25%, 50%, 75%, and 100% thresholds. Use Value: 40mA per output eliminates current-limiting resistors - simplifies layout and improves LED brightness consistency across segments. |
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 require pull-up resistors. | Suitable for cost-sensitive, non-battery applications where reference accuracy and ultra-low power are not required. | Choose LM339DR only when board space and power budget allow external reference and pull-ups. |
| TLV3704IPW | Rail-to-rail input/output; 850nA supply current; no internal reference; 1.5µs propagation delay. | Better for high-speed, low-voltage (1.8V–5.5V) systems needing faster response but lacking precision reference integration. | Choose TLV3704IPW when speed >12µs and supply <2.5V are critical, and external reference is acceptable. |
Compared with LM339DR and TLV3704IPW, the MAX924CSE+T uniquely combines quad comparators, ±1% internal reference, and 4µA quiescent current - making it the only option for compact, long-life battery-powered systems requiring self-contained precision threshold detection.
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 availability.
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 automotive markets.
The MAX921–MAX924 family was engineered specifically for ultra-low-power, single-supply comparator applications requiring integrated reference and robust output drive - targeting portable instrumentation, energy harvesting, and battery longevity-critical systems.
FAQ
What is the maximum supply voltage for MAX924CSE+T in single-supply operation?
The MAX924CSE+T supports a single-supply voltage range of +2.5V to +11V. When operated with V− connected to GND (single-supply mode), the absolute maximum voltage applied between V+ and GND is +11V. Exceeding this risks permanent damage, as confirmed by Absolute Maximum Ratings in the official datasheet.
Does MAX924CSE+T include internal hysteresis?
No, the MAX924CSE+T does not include internal hysteresis. Unlike the MAX921 and MAX923, the MAX924 requires external positive-feedback resistor networks to implement hysteresis - as detailed in Figure 4 and the Applications Information section of the MAX924 datasheet.
Can MAX924CSE+T operate from a 3.3V supply?
Yes, the MAX924CSE+T operates reliably from a 3.3V single supply (within its +2.5V to +11V range). At 3.3V, typical supply current is 5.2µA, propagation delay increases slightly to ~14µs (10mV overdrive), and output high voltage remains V+ − 0.4V - maintaining full TTL/CMOS compatibility.
What is the function of the REF pin on MAX924CSE+T?
The REF pin on MAX924CSE+T outputs a precision 1.182V ±1% voltage referenced to V− (not GND). It sources up to 25µA and sinks up to 15µA at +25°C, and must not be bypassed - as capacitive loading degrades noise performance and stability per the datasheet's Noise Considerations section.
Is MAX924CSE+T pin-compatible with other MAX92x variants?
No, MAX924CSE+T is not pin-compatible with MAX921, MAX922, or MAX923 due to its 16-pin narrow SO package and distinct pinout - including separate V− and GND pins, four output pairs, and dedicated REF. Only MAX924 variants (e.g., MAX924CPE, MAX924ESE) share this pin configuration.
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:
- 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:
- 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
-
LM2903DR
Texas Instruments
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LM339DR
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LM339PWR
Texas Instruments
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LM393DT
STMicroelectronics
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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
Texas Instruments
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NCX2200GMAZ
NXP USA Inc.
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