My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX984CSE
- Part No.:
- MAX984CSE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX984CSE.pdf
- Description:
- IC COMPARATR 4 W/VOLT REF 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,502
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
The MAX984CSE from Maxim Integrated is a quad, ultra-low-power, open-drain comparator with internal 1.182V ±2% voltage reference and no integrated hysteresis. It operates from single 2.5V–11V or dual ±1.25V–±5.5V supplies, features rail-to-rail input range (V− to V+ − 1.3V), 12µs propagation delay (10mV overdrive), and separate GND pin for output stage-enabling bipolar-to-single-ended level translation in battery-powered threshold detection systems.
For engineers reviewing the MAX984CSE datasheet, MAX984CSE pinout, MAX984CSE application, or MAX984CSE equivalent, this page delivers verified technical context, exact pin functions, real-world use cases in window detectors and power-good monitoring, and two validated alternative parts with documented functional and packaging differences.
Technical Context
The MAX984CSE integrates four independent comparators sharing one precision bandgap reference (1.182V ±2% at 0°C to +70°C) referenced to V−, not GND. Its open-drain outputs sink current to GND (not V−), enabling wire-OR configurations and level-shifting across supply domains.
It supports low-voltage operation down to 2.5V (single-supply) or ±1.25V (dual-supply); below 2.5V, comparator functionality persists but reference output degrades. Input common-mode range extends from V− to V+ − 1.3V, with absolute input tolerance of (V+ + 0.3V) to (V− − 0.3V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | Single: 2.5V–11V; Dual: ±1.25V–±5.5V - enables direct interface with 3V/5V logic and legacy ±5V analog rails. |
| Reference Voltage Accuracy | 1.182V ±2% (0°C to +70°C) - sets stable threshold baseline for undervoltage/overvoltage detection without external components. |
| Quiescent Supply Current | ≤8.0µA at 3V, ≤8.5µA at 5V - ensures multi-year battery life in always-on sensor nodes and portable instrumentation. |
| Propagation Delay | 12µs (10mV overdrive, 100pF load, 1MΩ pullup) - defines minimum response time for fast-acting power supervision circuits. |
| Input Common-Mode Range | V− to V+ − 1.3V - allows direct sensing of signals near supply rails, e.g., battery voltage monitoring down to 0.3V above ground. |
| Output Sink Capability | 50mA max per output (VOUT = 0.4V, V+ = 5V) - drives standard logic inputs, LEDs, or MOSFET gates without external buffers. |
| Reference Output Drive | Sinks 4µA / Sources 6µA (C-temp) - sufficient to bias resistor dividers for dual-threshold window detectors. |
Pinout & Package
MAX984CSE is supplied in a 16-pin narrow SO (SOICN) package with 0.150" body width and standard 1.27mm pitch. Pin 1 is bottom-left corner when notch is up; pin numbering follows counterclockwise convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTA | Comparator A open-drain output sinking to GND - used for active-low power-good assertion or undervoltage flag. |
| 2 | OUTB | Comparator B open-drain output sinking to GND - pairs with OUTA in wired-OR window detector configurations. |
| 3 | OUTC | Comparator C open-drain output sinking to GND - provides third independent decision channel for multi-level monitoring. |
| 4 | OUTD | Comparator D open-drain output sinking to GND - enables four-way state encoding or redundant fault checking. |
| 5 | GND | Ground reference for output stage and internal circuitry - must be connected to system ground, not V−, for correct output behavior. |
| 6 | IND+ | Noninverting input of Comparator D - accepts high-impedance analog signals up to V+ − 1.3V. |
| 7 | IND− | Inverting input of Comparator D - forms differential pair with IND+; leakage < ±5nA enables high-R divider networks. |
| 8 | INC+ | Noninverting input of Comparator C - shares same electrical specs as IND+/IND−; supports independent signal routing. |
| 9 | INC− | Inverting input of Comparator C - electrically identical to IND−; enables matched threshold design across channels. |
| 10 | V− | Negative supply terminal - tied to GND in single-supply mode; sets reference offset and input lower bound. |
| 11 | REF | 1.182V reference output referenced to V− - powers external resistor networks for precise voltage thresholds. |
| 12 | INB+ | Noninverting input of Comparator B - supports rail-sensing applications such as battery charge-state indication. |
| 13 | INB− | Inverting input of Comparator B - complements INB+; input offset voltage ±10mV defines minimum detectable voltage difference. |
| 14 | INA+ | Noninverting input of Comparator A - primary input for main power-supply monitoring path. |
| 15 | INA− | Inverting input of Comparator A - typically connected to REF-derived threshold network in power-good circuits. |
| 16 | V+ | Positive supply terminal - accepts up to 11V; supplies gate drive for all output N-channel MOSFETs. |
Key Features
| Feature | Design Value |
|---|---|
| Quad open-drain comparators with shared reference | Enables compact 4-channel voltage supervision in one 16-pin SOIC - reduces board space vs. discrete dual-comparator solutions. |
| Separate GND pin for output stage | Allows true bipolar-to-single-ended conversion: outputs sink to system GND while inputs reference V−, isolating noise paths. |
| 1.182V ±2% internal reference (0°C to +70°C) | Eliminates need for external precision reference IC or resistor divider trimming - cuts BOM cost and calibration effort. |
| Rail-to-rail input range (V− to V+ − 1.3V) | Permits direct monitoring of battery voltages down to 300mV above ground without level-shifting amplifiers. |
| Ultra-low 8.5µA supply current (5V, +25°C) | Supports >10-year operation on coin-cell batteries in IoT endpoint devices with periodic wake-up supervision. |
| 12µs propagation delay (10mV overdrive) | Meets timing requirements for fast power-fail detection in microcontroller reset circuits and DC-DC converter sequencing. |
Applications
| Power-Good Monitoring | Window Voltage Detection |
|---|---|
Use Scenario: Verifying stable 5V/3.3V supply before releasing microcontroller reset. IC Role / Device Role / Timing Role: Quad comparator compares VCC against upper/lower thresholds derived from REF; wired-OR outputs generate active-high POWER_GOOD signal. Use Value: Eliminates external op-amps and reference ICs; 12µs response ensures reliable MCU boot sequencing under brown-out conditions. |
Use Scenario: Detecting battery voltage within safe operating window (e.g., 3.4V–4.2V for Li-ion). IC Role / Device Role / Timing Role: Two comparators monitor high/low thresholds using REF-based dividers; remaining two channels add hysteresis or redundancy. Use Value: Single-chip solution replaces 3–4 discrete comparators; ±2% reference accuracy ensures consistent cell protection across temperature. |
| Battery Switchover Control | Level Translation Interface |
Use Scenario: Seamless transition from wall adapter to backup battery during AC loss. IC Role / Device Role / Timing Role: One comparator triggers P-MOSFET gate when adapter drops below 4.0V; second monitors battery health at 3.6V cutoff. Use Value: No diode voltage drop - preserves battery runtime; ultra-low quiescent current avoids parasitic drain during standby. |
Use Scenario: Converting ±5V industrial sensor outputs to 0–3.3V logic-compatible signals. IC Role / Device Role / Timing Role: Comparator inputs accept bipolar signals; open-drain outputs pulled to 3.3V generate single-ended logic levels. Use Value: GND-referenced outputs enable clean interfacing between isolated analog and digital domains without level-shifter ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX974CSE | 1.182V ±1% reference (vs. ±2%), includes internal hysteresis control logic | Better accuracy for precision thresholding; hysteresis simplifies noise-immune designs | Select MAX974CSE when reference tolerance <1% is required or when HYST pin simplifies layout over external feedback. |
| LM339DR | No internal reference; wider supply range (2V–36V); higher quiescent current (500µA typical) | Higher drive strength (16mA sink) but unsuitable for micropower battery systems | Choose LM339DR only for high-voltage industrial applications where µA-level current is not critical. |
Compared with MAX974CSE, the MAX984CSE trades reference accuracy and hysteresis integration for lower cost and simpler biasing; versus LM339DR, it delivers 60× lower supply current but sacrifices voltage headroom and output drive - making MAX984CSE optimal for compact, long-life 3V/5V embedded supervision.
Availability
MAX984CSE is available at Aetrix Electronics and suitable for battery-powered systems, power-good monitoring, window voltage detection, and level translation interfaces requiring stable component supply and guaranteed commercial-temperature performance (0°C to +70°C).
Supply support for MAX984CSE 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 management, sensing, and interface applications in industrial, automotive, and consumer markets.
The MAX984CSE belongs to Maxim's ultra-low-power comparator family targeting micropower supervision in portable and energy-harvesting systems - emphasizing sub-10µA operation, integrated references, and flexible supply configurations.
FAQ
What is the reference voltage tolerance of the MAX984CSE over its full operating temperature range?
The MAX984CSE features a 1.182V internal bandgap reference with ±2% accuracy over the commercial temperature range (0°C to +70°C). At extended temperatures (−40°C to +85°C), the tolerance widens to ±3%, as specified in the Electrical Characteristics table. This reference is referenced to V−, not GND, so its absolute output voltage shifts with negative rail changes - a key consideration in dual-supply designs.
Does the MAX984CSE support true dual-supply operation with independent positive and negative rails?
Yes, the MAX984CSE supports dual-supply operation from ±1.25V to ±5.5V. Its inputs operate from V− to V+ − 1.3V, and its outputs sink current to the dedicated GND pin - not V− - allowing clean separation between analog signal referencing (V−) and digital output interfacing (GND). This architecture enables robust bipolar-to-single-ended conversion without level-shifting components.
Can the MAX984CSE be used below 2.5V supply voltage?
The MAX984CSE is guaranteed to operate down to 2.5V (single-supply) or ±1.25V (dual-supply). Below 2.5V, comparator functionality persists but the internal reference output degrades significantly below ~2.2V. Propagation delay increases and output sink capability falls - verified in Typical Operating Characteristics plots. For sub-2.5V designs, prototype validation across voltage and temperature is essential.
How does the MAX984CSE differ from the MAX983 in pin compatibility and functionality?
The MAX984CSE is a quad comparator in 16-pin SOIC, while the MAX983 is a dual comparator in 8-pin packages. They share identical reference accuracy (±2%), supply ranges, and input/output specs - but MAX984CSE has no HYST pin (unlike MAX983) and uses separate GND for outputs. Pinouts are incompatible; migration requires PCB redesign and updated threshold networks due to doubled channel count.
What is the maximum capacitive load the MAX984CSE outputs can drive while maintaining 12µs propagation delay?
The 12µs propagation delay specification assumes a 100pF capacitive load with a 1MΩ pullup resistor to V+. As load capacitance increases, delay rises approximately linearly - e.g., 500pF load extends delay to ~40µs (per Figure TOC11). For loads >200pF, reduce pullup resistance or add a buffer stage to maintain timing integrity in high-speed supervision circuits.
MAX984CSE 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:
- Obsolete
- Type:
- with Voltage Reference
- Number of Elements:
- 4
- Output Type:
- -
- Voltage - Supply, Single/Dual (±):
- 2.5V ~ 11V, ±1.25V ~ 5.5V
- :
- 10mV @ 5V
- Voltage - Input Offset (Max):
- -
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 8.5µA
- Current - Quiescent (Max):
- 80dB CMRR, 80dB PSRR
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 16-SOIC
MAX984CSE FAQ
1.How can I place an order for MAX984CSE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX984CSE 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 MAX984CSE reliable?
The price and inventory of MAX984CSE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX984CSE is usually 5 days.
3.What payment methods are accepted for MAX984CSE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX984CSE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX984CSE?
MAX984CSE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX984CSE 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 MAX984CSE?
For technical support, including MAX984CSE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX984CSE requirements.
6.How does Aetrix verify that MAX984CSE is sourced from the original manufacturer or authorized distributors?
All MAX984CSE 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 MAX984CSE meets industry standards.
7.What is the process for return or replacement of MAX984CSE?
All MAX984CSE units undergo pre-shipment inspection (PSI). If there is an issue with MAX984CSE, 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 MAX984CSE part is unused and in its original packaging.
Return procedure for MAX984CSE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX984CSE 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.
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
