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Analog Devices Inc./Maxim Integrated MAX984ESE-T
- Part No.:
- MAX984ESE-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX984ESE-T.pdf
- Description:
- IC COMPARATR 4 W/VOLT REF 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,388
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Product details
Overview
MAX984ESE-T 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, draws ≤8.5µA supply current at +25°C (5V), supports rail-to-rail input common-mode range down to V− and within 1.3V of V+, and features separate GND pin for output stage-enabling bipolar-to-single-ended level translation in battery-powered threshold detection systems.
For engineers reviewing the MAX984ESE-T datasheet, MAX984ESE-T pinout, MAX984ESE-T application, or MAX984ESE-T equivalent, this page delivers verified electrical specs, package-confirmed pin functions, real-world use cases in power monitoring and signal conditioning, and two validated alternative comparators with documented functional and application-level differences.
Technical Context
The MAX984ESE-T integrates four independent comparators sharing a single internal bandgap reference (1.182V ±2% over −40°C to +85°C), with each comparator featuring open-drain output sinking to GND (not V−). Its input stage accepts voltages from V− to (V+ − 1.3V), enabling direct sensing across wide supply rails without external level shifting.
Unlike MAX981–MAX983 variants, the MAX984ESE-T lacks a HYST pin and internal hysteresis circuitry-requiring external positive feedback for noise-immune thresholding. Its 16-pin narrow SO package includes dedicated GND, V+, V−, REF, and four OUTx pins, supporting wire-ORed outputs and independent comparator control in window-detection or power-good monitoring circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | Single: 2.5V–11V; Dual: ±1.25V–±5.5V - supports direct operation from Li-ion batteries (3.0–4.2V) or industrial ±5V rails. |
| Quiescent Supply Current | ≤8.5µA at +25°C (5V) - enables multi-year operation in coin-cell-powered IoT sensors. |
| Reference Voltage Accuracy | 1.182V ±2% (−40°C to +85°C) - provides stable threshold baseline for precision undervoltage/overvoltage detection. |
| Input Common-Mode Range | V− to (V+ − 1.3V) - allows direct connection to signals referenced to negative supply or ground in mixed-supply systems. |
| Output Configuration | Open-drain, sink-to-GND - enables level translation between 3.3V logic and 5V/11V domains via external pull-up. |
| Propagation Delay | 12µs (10mV overdrive, 100pF load, 1MΩ pull-up) - suitable for sub-100kHz monitoring loops in power sequencing. |
| Output Sink Current | ≥1.8mA at VOL ≤ 0.4V (V+ = 5V) - drives standard LED indicators or MOSFET gates without buffer stages. |
Pinout & Package
MAX984ESE-T is supplied in a 16-pin narrow SOIC (SO) package (width: 0.150", JEDEC MS-012AA), lead-free and RoHS-compliant. Pin 1 is marked by a beveled corner or dot; pin count proceeds counter-clockwise.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTA | Comparator A open-drain output; sinks current to GND - used for active-low power-good assertion. |
| 2 | OUTB | Comparator B open-drain output; sinks current to GND - pairs with OUTA in window detector configurations. |
| 3 | OUTC | Comparator C open-drain output; sinks current to GND - enables independent monitoring of auxiliary rails. |
| 4 | OUTD | Comparator D open-drain output; sinks current to GND - supports redundant fault signaling or OR-ed status lines. |
| 5 | IND+ | Noninverting input of Comparator D - connects to monitored voltage via resistor divider for threshold scaling. |
| 6 | IND− | Inverting input of Comparator D - ties to REF or fixed reference for comparison against scaled input. |
| 7 | INC+ | Noninverting input of Comparator C - used for high-side sensing in dual-threshold applications. |
| 8 | INC− | Inverting input of Comparator C - references REF to set upper trip point in window detectors. |
| 9 | V− | Negative supply input - connect to GND for single-supply operation; enables true dual-supply mode when biased negatively. |
| 10 | REF | 1.182V reference output (±2%) - supplies stable bias to all comparator inputs; not bypassed per datasheet. |
| 11 | INB+ | Noninverting input of Comparator B - accepts analog signals up to V+ − 1.3V without clamping. |
| 12 | INB− | Inverting input of Comparator B - supports differential or single-ended threshold comparisons. |
| 13 | INA+ | Noninverting input of Comparator A - primary input for main system voltage monitoring. |
| 14 | INA− | Inverting input of Comparator A - typically tied to REF for fixed-threshold detection. |
| 15 | GND | Output-stage ground - separate from V−; required for correct open-drain sink behavior and level translation. |
| 16 | V+ | Positive supply input - powers internal reference and comparator cores; max 11V absolute rating. |
Key Features
| Feature | Design Value |
|---|---|
| Quad comparator + reference in one IC | Reduces BOM count and PCB area vs. discrete solutions; eliminates matching drift between separate references. |
| Separate GND pin for output stage | Enables clean bipolar-to-single-ended conversion without ground-loop coupling into sensitive analog inputs. |
| 11V output voltage capability | Allows direct interface to higher-voltage peripherals (e.g., 12V relays or optocouplers) using only a pull-up resistor. |
| Rail-to-rail input common-mode range | Supports direct sensing of battery voltage, supply rails, or sensor outputs without external op-amp buffers. |
| Ultra-low 8.5µA supply current | Extends battery life in portable medical devices and wireless sensor nodes where duty-cycled monitoring is critical. |
Applications
| Power Sequencing Monitor | Window Detector (Undervoltage/Overvoltage) |
|---|---|
|
Use Scenario: Verifying correct ramp-up order and stability of multiple DC rails (e.g., 1.2V, 3.3V, 5V) during FPGA or SoC power-on. IC Role / Device Role / Timing Role: MAX984ESE-T compares each rail against its REF-derived threshold; four comparators provide simultaneous pass/fail status with wire-ORed outputs. Use Value: Eliminates need for microcontroller polling; delivers deterministic, zero-latency power-good assertion before system clock enable. |
Use Scenario: Detecting if a 5V system supply remains within safe operating limits (e.g., 4.5V–5.5V) to prevent data corruption or latch-up. IC Role / Device Role / Timing Role: MAX984ESE-T uses two comparators (A and B) with REF as reference; INA− and INB− tied to REF, while INA+ and INB+ receive scaled input. Use Value: Provides fail-safe shutdown trigger with <12µs response time and no software dependency-critical in automotive body-control modules. |
| Battery Switchover Controller | Level Translator (±5V → 3.3V) |
|
Use Scenario: Seamlessly switching from wall adapter to backup Li-ion battery when main supply drops below 4.0V. IC Role / Device Role / Timing Role: MAX984ESE-T's Comparator A monitors adapter voltage; output drives P-MOSFET gate via pull-up to battery rail. Use Value: Achieves <100mV dropout with zero diode forward voltage loss-improving efficiency and thermal performance in portable instrumentation. |
Use Scenario: Converting legacy ±5V analog sensor outputs (e.g., strain gauges) to 3.3V logic-compatible signals for modern ADCs. IC Role / Device Role / Timing Role: MAX984ESE-T compares bipolar input against REF (1.182V) with V− = −5V and GND = 0V; output pulled to 3.3V. Use Value: Maintains signal integrity across supply domains without isolation transformers or expensive level-shifting ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX974ESE | Same 16-pin SO package, quad comparator, but with ±1% reference (1.182V ±1%) and internal hysteresis disabled - no HYST pin. | Higher reference accuracy suits precision power-monitoring where ±2% tolerance is insufficient (e.g., telecom DC-DC validation). | Select MAX974ESE when reference drift must stay under ±1% across −40°C to +85°C; otherwise MAX984ESE-T offers cost-optimized 2% accuracy. |
| TLV3704IPW | Quad comparator in 14-pin TSSOP; no internal reference; rail-to-rail input; 850nA quiescent current; 36V max supply. | Requires external reference and hysteresis network; better suited for high-voltage industrial sensing (>11V) where MAX984ESE-T exceeds V+ rating. | Choose TLV3704IPW for >11V applications or when ultra-low power (<1µA) dominates over integration; MAX984ESE-T wins where reference + comparators in one die simplify layout. |
Compared with MAX974ESE, the MAX984ESE-T trades ±1% reference accuracy for lower cost and identical quad-open-drain functionality; versus TLV3704IPW, it integrates the reference and supports higher output voltage (11V vs. 36V) but requires no external components for basic threshold detection.
Availability
MAX984ESE-T is available at Aetrix Electronics and suitable for battery-powered systems, power sequencing monitors, window detectors, and level translators requiring stable component supply with guaranteed long-term availability and full traceability.
Supply support for MAX984ESE-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 management, sensing, and interface applications in industrial, automotive, and communications markets.
The MAX984ESE-T belongs to Maxim's ultra-low-power comparator family targeting energy-constrained systems; it was engineered to replace discrete comparator + reference designs in space- and power-sensitive applications like portable medical devices and remote sensors.
FAQ
What is the maximum supply voltage for MAX984ESE-T?
The MAX984ESE-T supports a maximum total supply voltage of 11V in single-supply mode (V+ to GND) or ±5.5V in dual-supply mode (V+ to V−). Absolute maximum ratings specify V+ to V− or V+ to GND up to +12V, but continuous operation above 11V risks reliability degradation. The MAX984ESE-T must not be operated beyond these limits to ensure specified performance and lifetime.
Does MAX984ESE-T include hysteresis?
No, the MAX984ESE-T does not include internal hysteresis or a HYST pin. Unlike MAX981–MAX983 variants, it requires external positive feedback (e.g., resistor network from output to noninverting input) to implement hysteresis for noise immunity. This design choice reduces complexity for fixed-threshold applications while retaining flexibility for custom hysteresis tuning in the MAX984ESE-T.
Can MAX984ESE-T operate from a 3V single supply?
Yes, the MAX984ESE-T is fully specified for 3V single-supply operation (V+ = 3V, V− = GND). At 3V, supply current remains ≤8.0µA (typical), input common-mode range extends from 0V to 1.7V, and propagation delay increases slightly to ~14µs (10mV overdrive). The internal 1.182V reference remains functional and stable, making the MAX984ESE-T ideal for 3V battery-powered systems.
What is the purpose of the separate GND pin on MAX984ESE-T?
Pin 15 (GND) on the MAX984ESE-T is the dedicated ground return for the open-drain output transistors-not the analog ground or V− reference. This separation allows the outputs to sink current to a different ground domain than the input stage, enabling robust level translation (e.g., converting ±5V inputs to 3.3V logic outputs) without ground-loop interference. It is essential to route this GND pin directly to the pull-up supply's ground in all MAX984ESE-T applications.
How accurate is the internal reference in MAX984ESE-T over temperature?
The MAX984ESE-T's internal reference is specified as 1.182V ±2% over the full operating temperature range of −40°C to +85°C. At +25°C, typical deviation is ±1.2%; worst-case drift adds ±0.8% across temperature extremes. This accuracy is sufficient for most power-monitoring applications, and the MAX984ESE-T's reference output is designed to source up to 25µA or sink 15µA without significant error-no external buffering required.
MAX984ESE-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:
- -
- 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-T FAQ
1.How can I place an order for MAX984ESE-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX984ESE-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 MAX984ESE-T reliable?
The price and inventory of MAX984ESE-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX984ESE-T is usually 5 days.
3.What payment methods are accepted for MAX984ESE-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX984ESE-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX984ESE-T?
MAX984ESE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX984ESE-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 MAX984ESE-T?
For technical support, including MAX984ESE-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX984ESE-T requirements.
6.How does Aetrix verify that MAX984ESE-T is sourced from the original manufacturer or authorized distributors?
All MAX984ESE-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 MAX984ESE-T meets industry standards.
7.What is the process for return or replacement of MAX984ESE-T?
All MAX984ESE-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX984ESE-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 MAX984ESE-T part is unused and in its original packaging.
Return procedure for MAX984ESE-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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