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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:1,515
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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), drawing only 8.5μA max supply current over –40°C to +85°C, and delivering TTL/CMOS-compatible outputs that source up to 40mA - 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, key selection criteria include its 16-pin narrow SO package, guaranteed 4-comparator functionality with independent inputs/outputs, internal reference accuracy, ultra-low quiescent current across temperature, and absence of internal hysteresis requiring external feedback configuration.
Technical Context
The MAX924ESE+T implements four independent comparators with rail-to-rail input common-mode range (V− to V+ − 1.3V), output stages capable of continuous 40mA sourcing and >5mA sinking, and an internal 1.182V reference referenced to V− (not GND). It lacks programmable hysteresis pins - unlike MAX921/MAX923 - requiring external positive-feedback networks for hysteresis implementation.
Its architecture supports single-supply operation (V− = GND) with outputs swinging from V+ to GND, enabling direct TTL compatibility at +5V, while dual-supply operation (e.g., ±5V) maintains full input range and output swing integrity without crowbar current during transitions.
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 use in both 3V/5V systems and bipolar signal monitoring |
| Quiescent Supply Current | 8.5μA max (–40°C to +85°C) - ensures multi-year battery life in always-on sensing nodes |
| Input Offset Voltage | ±10mV - sets minimum detectable differential voltage without calibration |
| Propagation Delay | 12μs typical (10mV overdrive) - supports kHz-range window detection and oscillator timing |
| Reference Voltage | 1.182V ±1% (0°C to +70°C), ±1.2% (–40°C to +85°C) - provides stable, factory-trimmed threshold基准 for precision level sensing |
| Output Drive Capability | 40mA continuous source, >5mA sink - directly drives LEDs, small relays, or logic inputs without external buffers |
| Input Common-Mode Range | V− to (V+ − 1.3V) - allows detection of signals near supply rails, critical for low-voltage battery monitoring |
Pinout & Package
MAX924ESE+T is housed in a 16-pin narrow SO (Small Outline) package, 3.9mm width, 1.75mm height, with standard JEDEC MS-012AC footprint and gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTB | Comparator B output; sinks/sources current; swings V+ to GND in single-supply mode |
| 2 | OUTA | Comparator A output; identical drive capability and swing as OUTB |
| 3 | V+ | Positive supply rail; accepts up to +11V or +5.5V in dual-supply configuration |
| 4 | INA− | Inverting input of comparator A; supports common-mode range down to V− |
| 5 | INA+ | Noninverting input of comparator A; matched offset and leakage with INA− |
| 6 | INB− | Inverting input of comparator B; electrically isolated from other comparator inputs |
| 7 | INB+ | Noninverting input of comparator B; supports same voltage range and noise immunity as INA± |
| 8 | REF | 1.182V reference output referenced to V−; supplies stable threshold for all comparators |
| 9 | V− | Negative supply rail; connect to GND for single-supply operation; defines REF and input common-mode floor |
| 10 | INC− | Inverting input of comparator C; fully independent, no crosstalk with A/B inputs |
| 11 | INC+ | Noninverting input of comparator C; matches performance specs of other comparator inputs |
| 12 | IND− | Inverting input of comparator D; supports rail-to-rail input operation with same leakage (<±5nA) |
| 13 | IND+ | Noninverting input of comparator D; enables four-channel independent voltage comparison |
| 14 | GND | Ground connection; tied internally to V− for single-supply output swing reference |
| 15 | OUTD | Comparator D output; identical electrical behavior to OUTA/OUTB/OUTC |
| 16 | OUTC | Comparator C output; completes full quad-output capability with TTL/CMOS compatibility |
Key Features
| Feature | Design Value |
|---|---|
| Quad comparator + reference in one IC | Reduces board space and BOM count vs. discrete solutions; eliminates matching errors between separate references |
| No internal hysteresis | Enables precise, externally programmable hysteresis via resistor feedback - avoids fixed-band limitations |
| 40mA continuous output source | Drives multiple LEDs or logic gates directly; eliminates need for external driver transistors in low-power UIs |
| Input range includes negative rail | Supports accurate detection of signals at 0V (e.g., battery discharge cutoff) without level-shifting circuitry |
| No crowbar current during switching | Prevents supply rail disturbance and output oscillation - improves stability in noisy or high-impedance layouts |
Applications
| Battery Voltage Monitoring | Multi-Threshold Level Detection |
|---|---|
Use Scenario: Monitoring Li-ion cell voltage during charge/discharge cycles in portable medical devices. IC Role / Device Role / Timing Role: Quad comparator compares cell voltage against four preset thresholds (e.g., 4.2V, 3.8V, 3.5V, 3.0V) using REF and resistor dividers. Use Value: Enables precise state-of-charge estimation and automatic shutdown at 3.0V, leveraging 8.5μA quiescent current to extend standby time. | Use Scenario: Driving a 4-LED bar-graph display indicating signal amplitude in handheld test equipment. IC Role / Device Role / Timing Role: Each comparator triggers one LED at successive voltage steps (250mV, 500mV, 750mV, 1V) referenced to REF. Use Value: 40mA per output drives LEDs directly; no external drivers needed - reduces component count and layout complexity. |
| Window Comparator System | Auto-Power-Off Control |
Use Scenario: Validating power supply integrity (e.g., 4.5V–5.5V window) in industrial controllers. IC Role / Device Role / Timing Role: Two comparators form upper/lower bounds; remaining two implement hysteresis and generate "POWER GOOD" logic. Use Value: Internal REF ensures consistent trip points; independent inputs prevent interaction between thresholds - improves reliability vs. dual-comparator ICs. | Use Scenario: Enabling timed shutdown of auxiliary circuits after user inactivity in IoT edge nodes. IC Role / Device Role / Timing Role: One comparator monitors RC decay voltage; output disables power switch after threshold crossing. Use Value: 8.5μA supply current minimizes self-drain; 12μs propagation delay ensures fast response to timeout events. |
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 1.1mA supply current; open-collector outputs require pull-ups | Lacks integrated REF - needs external voltage source for thresholding; unsuitable for ultra-low-power battery systems | Select when cost is primary constraint and reference is already available on board |
| TLV3704IPW | Lower 1.6μA supply current but no internal reference; rail-to-rail I/O; 360μs propagation delay | Slower response limits use in oscillator or fast window-detection circuits; requires external REF for precision thresholds | Select when sub-μA quiescent current is critical and speed <1kHz is acceptable |
Compared with LM339DR and TLV3704IPW, MAX924ESE+T uniquely combines integrated 1.182V reference, 8.5μA quiescent current, and 40mA output drive - making it optimal for compact, self-contained, battery-operated threshold detection where board space and power budget are constrained.
Availability
MAX924ESE+T is available at Aetrix Electronics and suitable for battery-powered instrumentation, portable medical sensors, and industrial power-monitoring systems requiring stable component supply and long-term lifecycle support.
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 medical markets.
The MAX921–MAX924 family was engineered specifically for ultra-low-power, single/dual-supply comparator applications demanding integrated reference accuracy, rail-to-rail input operation, and robust output drive - targeting portable and energy-constrained systems.
FAQ
What is the maximum supply voltage for MAX924ESE+T in single-supply operation?
The MAX924ESE+T supports a maximum single-supply voltage of +11V, with V− connected to GND. Operation above this risks permanent damage, as specified in Absolute Maximum Ratings. At +11V, the device maintains full functionality including 1.182V reference accuracy and 40mA output sourcing capability - verified across –40°C to +85°C.
Does MAX924ESE+T include internal hysteresis like MAX921 or MAX923?
No, MAX924ESE+T does not include internal hysteresis or a HYST pin. Unlike MAX921/MAX923, it requires external positive-feedback resistor networks on each comparator to implement hysteresis - as detailed in Figure 4 of the datasheet. This design allows fully customizable hysteresis bands per channel but adds two resistors per comparator.
Can MAX924ESE+T operate from a 3V single supply?
Yes, MAX924ESE+T is fully specified for operation from +2.5V to +11V single supply. At +3V, it delivers 8.5μA max supply current, 12μs propagation delay (10mV overdrive), and maintains full input common-mode range (0V to 1.7V) and REF output accuracy (1.182V ±1.2%). Performance remains stable across –40°C to +85°C.
What is the output voltage swing of MAX924ESE+T when V+ = 5V and V− = GND?
With V+ = 5V and V− = GND, MAX924ESE+T outputs swing from GND to V+ − 0.4V (i.e., 0V to 4.6V) under 1.8mA load, meeting TTL logic-high requirements. The output stage sources up to 40mA continuously and sinks >5mA - enabling direct interfacing with 5V CMOS inputs and LED loads without level shifters or buffers.
How is the internal reference (REF) of MAX924ESE+T connected and used?
The REF pin of MAX924ESE+T outputs a 1.182V voltage referenced to V− (not GND), and must be used with V− as the local ground reference for associated resistor dividers. It can source up to 25μA and sink 15μA at +25°C. Bypassing REF is prohibited - capacitive coupling to REF degrades noise performance and may cause instability.
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:
- 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+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
-
LM2903DR
Texas Instruments
-
LM339DR
Texas Instruments
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LM339PWR
Texas Instruments
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LM393DT
STMicroelectronics
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LM2901PWR
Texas Instruments
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LM2903DT
STMicroelectronics
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LM393DR
Texas Instruments
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LM239DR
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LM339APWR
Texas Instruments
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LM2903P
Texas Instruments
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LM393ADR
Texas Instruments
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NCX2200GMAZ
NXP USA Inc.
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