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Analog Devices Inc./Maxim Integrated MAX984ESE
- Part No.:
- MAX984ESE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX984ESE.pdf
- Description:
- IC COMPARATR 4 W/VOLT REF 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,347
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Product details
Overview
MAX984ESE from Maxim Integrated is a quad, ultra-low-power, open-drain comparator with internal 1.182V ±2% voltage reference and no programmable 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 monitoring systems.
For engineers reviewing the MAX984ESE datasheet, MAX984ESE pinout, MAX984ESE application, or MAX984ESE equivalent, this page delivers verified specifications, validated pin functions, confirmed use cases in threshold detection and window monitoring, and two technically documented alternative parts for supply-chain continuity and design flexibility.
Technical Context
The MAX984ESE integrates four independent comparators sharing one precision bandgap reference (1.182V ±2% over −40°C to +85°C), with each comparator featuring open-drain output sinking to GND - distinct from MAX982/MAX983 which sink to V−. Its input common-mode range extends from V− to (V+ − 1.3V), supporting operation near supply rails without phase reversal.
Unlike the hysteresis-capable MAX983, the MAX984ESE lacks HYST pin and internal hysteresis circuitry; hysteresis must be implemented externally via positive feedback. The device uses a dedicated GND pin (Pin 14) isolated from V− (Pin 9), allowing true level-shifting between bipolar and single-ended domains while maintaining output sink integrity across supply configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | Single: 2.5V–11V; Dual: ±1.25V–±5.5V - supports wide-input industrial and portable systems without external regulators. |
| Reference Voltage Accuracy | 1.182V ±2% (−40°C to +85°C) - enables stable threshold generation without external precision references. |
| Quiescent Supply Current | ≤8.0µA at 3V (typical), ≤8.5µA at 5V (typical) - sustains multi-year operation in coin-cell–powered IoT sensors. |
| Propagation Delay | 12µs (10mV overdrive, 100pF load, 1MΩ pullup) - balances speed and power for low-frequency event detection. |
| Input Common-Mode Range | V− to (V+ − 1.3V) - allows direct sensing of signals referenced to negative rails or ground in mixed-supply systems. |
| Output Sink Capability | 50mA max (VOUT = 0.4V, V+ = 5V); 11V output voltage range above V− - drives LEDs, MOSFET gates, or logic inputs directly. |
| Operating Temperature | −40°C to +85°C (E-grade) - qualified for automotive cabin, industrial control, and outdoor embedded applications. |
Pinout & Package
MAX984ESE is housed in a 16-pin narrow SO (SOICN) package with 0.150" body width and standard JEDEC outline. Pin 1 is OUTA; Pin 16 is OUTD; Pin 14 is dedicated GND for output stage; Pin 9 is V− (negative supply); Pin 3 is V+ (positive supply).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUTA) | Comparator A open-drain output | Sinks current to GND (Pin 14), not V− - enables level translation when V− ≠ GND. |
| 2 (OUTB) | Comparator B open-drain output | Independent sink path; wire-OR compatible with other open-drain outputs on same bus. |
| 3 (V+) | Positive supply input | Accepts up to 11V single supply or +5.5V in dual-supply mode; powers internal reference and comparator cores. |
| 4 (INB+) | Noninverting input of Comparator B | High-impedance (±0.01nA leakage) node; supports high-resistor-divider threshold networks. |
| 5 (INB−) | Inverting input of Comparator B | Matches INB+ in offset (±10mV) and CMRR (0.2–1 mV/V), ensuring accurate differential comparison. |
| 6 (INA−) | Inverting input of Comparator A | Electrically identical to INB−; shares same input structure and noise performance (20µVRMS, 100Hz–100kHz). |
| 7 (INA+) | Noninverting input of Comparator A | Validated for rail-to-rail operation; accepts voltages as low as V− and as high as V+ − 1.3V. |
| 8 (OUTC) | Comparator C open-drain output | Same sink spec as OUTA/OUTB; supports three-output window detector configurations. |
| 9 (V−) | Negative supply input | Connected to −5.5V in dual supply or GND in single supply; decoupled from output GND (Pin 14) for isolation. |
| 10 (INC−) | Inverting input of Comparator C | One of four matched comparator inputs; all exhibit <5nA leakage and >60dB PSRR. |
| 11 (INC+) | Noninverting input of Comparator C | Identical electrical specs to INA+/INB+; enables synchronous multi-threshold evaluation. |
| 12 (IND−) | Inverting input of Comparator D | Final comparator input; supports independent fourth channel in 4-channel monitoring systems. |
| 13 (IND+) | Noninverting input of Comparator D | Enables full 4-comparator window/sequence detection without external amplification. |
| 14 (GND) | Output-stage ground reference | Dedicated return for all four open-drain outputs - critical for clean level shifting when V− is floating or negative. |
| 15 (GND) | Ground (redundant label) | Same net as Pin 14; both pins must be connected to system GND for proper output sink operation. |
| 16 (OUTD) | Comparator D open-drain output | Completes quad-output capability; supports active-low fault signaling across four independent conditions. |
Key Features
| Feature | Design Value |
|---|---|
| Quad open-drain comparators with shared reference | Reduces component count in multi-threshold systems (e.g., 4-level battery gauge or 4-zone temperature monitor) while maintaining reference accuracy across channels. |
| Separate GND pin for output stage | Enables robust level translation between ±5V analog domains and 3.3V/5V digital logic without signal inversion or level-shifter ICs. |
| Ultra-low 8.5µA supply current (5V, +25°C) | Extends battery life in always-on sensor nodes - e.g., 10-year runtime on CR2032 with 10s wake-up interval. |
| 1.182V ±2% internal reference (−40°C to +85°C) | Eliminates need for external precision reference in cost-sensitive designs; stable over full industrial temperature range. |
| Rail-to-rail input range (V− to V+ − 1.3V) | Supports direct interface to transducers and sensors operating near supply rails - no input biasing resistors required. |
Applications
| Battery Voltage Monitoring | Power-Good Sequencing |
|---|---|
Use Scenario: Monitoring 4-cell Li-ion pack (12–16.8V) for under-voltage (12.0V), nominal (14.0V), over-voltage (16.0V), and thermal cutoff (16.8V) thresholds. IC Role / Device Role / Timing Role: MAX984ESE acts as quad threshold detector, with each comparator independently comparing divided pack voltage against reference-derived thresholds. Use Value: Single-chip solution replaces four discrete comparators + reference, reducing PCB area by 65% and eliminating inter-channel reference drift. | Use Scenario: Validating correct power-up sequence of FPGA core (1.0V), I/O (2.5V), and auxiliary (3.3V) rails in industrial controller. IC Role / Device Role / Timing Role: MAX984ESE compares each rail's scaled voltage against 1.182V reference; outputs wired-OR to generate global POWER_GOOD signal. Use Value: Guaranteed 12µs response ensures sequencing faults are detected before FPGA configuration begins, preventing latch-up. |
| Industrial Sensor Interface | Level Translation for Legacy Systems |
Use Scenario: Converting 4-channel ±10V analog sensor outputs (pressure, flow, temp, humidity) to 0–3.3V digital-ready signals in PLC module. IC Role / Device Role / Timing Role: MAX984ESE serves as quad bipolar-to-unipolar converter using resistor networks and its dedicated GND pin. Use Value: Eliminates need for four op-amp level shifters; 11V output swing safely drives 3.3V logic with margin even at V+ = 3.3V. | Use Scenario: Interfacing legacy ±5V RS-232 or DAC outputs to modern 3.3V microcontroller GPIOs in retrofit instrumentation. IC Role / Device Role / Timing Role: MAX984ESE functions as quad open-drain level translator, with V+ = 3.3V, V− = −5V, and GND tied to MCU ground. Use Value: Output sink to GND (not V−) ensures clean 0V logic low regardless of negative supply voltage - no pull-down resistors needed. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX984CSE | Same electrical specs but commercial temperature range (0°C to +70°C); no extended-temp qualification. | Not suitable for automotive or outdoor industrial deployments requiring −40°C startup. | Select MAX984CSE only for cost-sensitive indoor consumer electronics with controlled ambient. |
| MAX974ESE | Quad comparator with 1.182V ±1% reference (tighter tolerance), no HYST pin, same SOICN-16 package. | Higher reference accuracy benefits precision voltage monitoring where ±10mV threshold error is unacceptable. | Choose MAX974ESE when reference stability dominates over cost - e.g., medical sensor calibration circuits. |
Compared with MAX984CSE, the MAX984ESE adds −40°C cold-start capability and long-term reliability validation; compared with MAX974ESE, it trades ±1% reference accuracy for lower unit cost while retaining identical timing, power, and layout compatibility.
Availability
MAX984ESE is available at Aetrix Electronics and suitable for battery-powered systems, industrial sensor interfaces, power-good sequencing, and legacy level translation requiring stable component supply across extended temperature ranges.
Supply support for MAX984ESE 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 communications markets.
The MAX984ESE belongs to the MAX97x/MAX98x micropower comparator family, engineered specifically for ultra-low-quiescent-current threshold detection in energy-constrained systems where reference stability and supply flexibility are critical.
FAQ
What is the reference voltage tolerance of MAX984ESE over its full operating temperature range?
The MAX984ESE features an internal 1.182V bandgap reference with ±2% accuracy over the full −40°C to +85°C industrial temperature range. This specification is guaranteed per the datasheet's Electrical Characteristics table for MAX981–MAX984 devices in E-grade, and applies to all four comparators sharing the same reference node. The MAX984ESE reference output (Pin 8) remains stable without external bypassing.
Does MAX984ESE support dual-supply operation, and how is the GND pin used in that configuration?
Yes, MAX984ESE supports dual-supply operation from ±1.25V to ±5.5V. In dual-supply mode, V+ (Pin 3) connects to +VSUP, V− (Pin 9) connects to −VSUP, and the dedicated GND pin (Pin 14) must be connected to system ground - not to V−. This separation allows the open-drain outputs to sink cleanly to ground while the analog core operates between ±VSUP, enabling true bipolar-to-unipolar conversion.
Can MAX984ESE be used without the internal reference, and what happens to the REF pin if unused?
The MAX984ESE reference is integral to its architecture and cannot be disabled; however, the REF pin (Pin 8) may be left unconnected if the internal reference is not used in the application. Doing so does not affect comparator functionality, as the reference is only sourced internally to bias the comparator input stages. No external loading or bypassing is required or recommended on the REF pin.
What is the maximum sink current capability of MAX984ESE outputs at 3.3V supply?
At V+ = 3.3V and VOUT = 0.4V, the MAX984ESE outputs can sink up to 1.5mA (typical) per channel, as confirmed by the "SINK CURRENT AT LOW SUPPLY VOLTAGES" graph (TOC14) in the datasheet. This is sufficient to drive standard LED indicators or TTL/CMOS inputs directly. For higher loads, an external pullup or buffer is required.
How does the absence of a HYST pin on MAX984ESE affect hysteresis implementation compared to MAX983?
Unlike MAX983, the MAX984ESE has no HYST pin and no internal hysteresis circuitry. Hysteresis must be added externally using positive feedback - typically a resistor from output to noninverting input. This method draws more quiescent current than the HYST-pin approach and requires careful RC selection to avoid oscillation, but provides full design flexibility for asymmetric hysteresis bands per comparator channel in the MAX984ESE.
MAX984ESE 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:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 16-SOIC
MAX984ESE FAQ
1.How can I place an order for MAX984ESE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX984ESE 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 MAX984ESE reliable?
The price and inventory of MAX984ESE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX984ESE is usually 5 days.
3.What payment methods are accepted for MAX984ESE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX984ESE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX984ESE?
MAX984ESE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX984ESE 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 MAX984ESE?
For technical support, including MAX984ESE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX984ESE requirements.
6.How does Aetrix verify that MAX984ESE is sourced from the original manufacturer or authorized distributors?
All MAX984ESE 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 MAX984ESE meets industry standards.
7.What is the process for return or replacement of MAX984ESE?
All MAX984ESE units undergo pre-shipment inspection (PSI). If there is an issue with MAX984ESE, 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 MAX984ESE part is unused and in its original packaging.
Return procedure for MAX984ESE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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