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Analog Devices Inc./Maxim Integrated MAX983ESA+T
- Part No.:
- MAX983ESA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX983ESA+T.pdf
- Description:
- IC COMPARATOR 2 W/VOLT REF 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,645
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Product details
Overview
The MAX983ESA+T from Maxim Integrated is a dual, ultra-low-power, open-drain comparator with internal 1.182V ±2% voltage reference and programmable hysteresis via HYST pin. It operates from single 2.5V–11V or dual ±1.25V–±5.5V supplies, draws ≤4µA supply current over temperature, and supports input common-mode range from V− to (V+ − 1.3V). It is used in battery-powered threshold detectors and window comparators requiring rail-to-rail input operation and low quiescent power.
For engineers reviewing the MAX983ESA+T datasheet, MAX983ESA+T pinout, MAX983ESA+T application, or MAX983ESA+T equivalent, key selection criteria include its dual-comparator architecture with shared reference and hysteresis control, 12µs propagation delay at 10mV overdrive, open-drain output sinking capability to V−, and SO-8 package compatibility with industrial temperature range (−40°C to +85°C).
Technical Context
The MAX983ESA+T integrates two independent micropower comparators sharing a single internal bandgap reference (1.182V ±2%) referenced to V−. Its HYST pin enables simple resistor-based hysteresis programming without external feedback, with adjustable hysteresis band up to 100mV via REF–HYST voltage difference.
It features open-drain outputs that sink current to V− (not GND), enabling bipolar-to-single-ended level translation and wire-OR configurations. Input stage supports common-mode voltages down to V− and up to V+ − 1.3V, with typical input offset voltage of ±10mV and input leakage <±5nA over temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | Single 2.5V–11V or dual ±1.25V–±5.5V - supports wide input rail flexibility including 3V/5V systems and split-supply sensor interfaces. |
| Quiescent Supply Current | ≤4µA max over −40°C to +85°C - enables multi-year operation in coin-cell–powered IoT sensors and portable devices. |
| Reference Voltage Accuracy | 1.182V ±2% (0°C to +70°C), ±3% (−40°C to +85°C) - provides stable threshold generation for precision undervoltage/overvoltage detection. |
| Propagation Delay | 12µs typical at 10mV overdrive - ensures timely response in battery switchover and power-good monitoring circuits. |
| Input Common-Mode Range | V− to (V+ − 1.3V) - allows direct interfacing with signals near ground or rail without level-shifting circuitry. |
| Output Configuration | Open-drain, sinks to V− - enables wired-OR logic, level translation between disparate voltage domains, and interface with pullup resistors up to 11V. |
| Hysteresis Control | HYST pin accepts 0–50mV below REF - permits precise, resistor-programmable hysteresis band (up to 100mV) without external op-amps or feedback networks. |
Pinout & Package
MAX983ESA+T is housed in an 8-pin SO (Small Outline) package, pin-compatible with industry-standard SOIC-8 footprint. The device uses a dual-comparator topology with shared reference and hysteresis control, optimized for compact PCB layout in space-constrained applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUTA) | Comparator A open-drain output | Sinks current to V−; requires external pullup for logic-high output; supports wire-OR and level translation. |
| 2 (V+) | Positive supply input | Accepts 2.5V–11V single supply or positive rail of dual supply; powers internal comparator and reference circuitry. |
| 3 (REF) | Internal reference output | Provides 1.182V ±2% referenced to V−; capable of sourcing 25µA/sinking 15µA; must not be bypassed. |
| 4 (HYST) | Hysteresis control input | Accepts voltage from REF − 50mV to REF; sets hysteresis band width; connect to REF if unused. |
| 5 (IN−) | Inverting input of Comparator B | Differential input node; supports common-mode range from V− to V+ − 1.3V; leakage <±5nA. |
| 6 (IN+) | Noninverting input of Comparator B | Differential input node; same electrical specs as IN−; used with IN− to form second comparator channel. |
| 7 (V−) | Negative supply input | Connect to GND for single-supply operation; serves as reference point for REF and output sink path. |
| 8 (OUTB) | Comparator B open-drain output | Functionally identical to OUTA; enables independent dual-threshold detection or window comparator implementation. |
Key Features
| Feature | Design Value |
|---|---|
| Dual comparators with shared reference | Reduces component count and board area in window detector and dual-threshold applications; eliminates need for external reference IC. |
| Programmable hysteresis via HYST pin | Enables precise noise immunity tuning using only two resistors; avoids complex feedback loops and saves design time versus discrete hysteresis solutions. |
| Open-drain outputs sinking to V− | Supports level translation across voltage domains (e.g., ±5V input to 3.3V logic); enables wired-OR for power-good signaling without additional logic gates. |
| Ultra-low 4µA supply current | Extends battery life in always-on monitoring systems; suitable for energy-harvesting and low-duty-cycle wake-up architectures. |
| Input range includes negative rail | Allows direct connection to ground-referenced sensors or signals without biasing networks; simplifies front-end analog conditioning. |
Applications
| Threshold Detector | Window Comparator |
|---|---|
Use Scenario: Monitoring battery voltage to trigger low-battery warning before system shutdown. IC Role / Device Role / Timing Role: Dual comparator compares battery voltage against upper and lower thresholds derived from internal REF and resistor dividers. Use Value: Eliminates external reference and reduces BOM count by 3–4 components versus discrete solutions; hysteresis prevents chatter near trip points. | Use Scenario: Validating regulated DC supply (e.g., 5V rail) stays within safe operating window (4.5V–5.5V). IC Role / Device Role / Timing Role: MAX983ESA+T implements undervoltage (OUTA) and overvoltage (OUTB) detection channels; outputs wire-OR'd to generate active-high POWER_GOOD signal. Use Value: Achieves <12µs response to supply excursions; internal REF ensures consistent thresholds across temperature without calibration. |
| Battery Switchover Circuit | Level Translator |
Use Scenario: Seamless transition from wall adapter to backup battery when main supply drops below 4V. IC Role / Device Role / Timing Role: One comparator controls P-channel MOSFET gate (OUTA); second monitors battery health (OUTB). Use Value: Replaces lossy diode-OR with <100mV dropout; 4µA quiescent current minimizes standby drain on backup battery. | Use Scenario: Converting ±5V analog sensor outputs to 3.3V logic-compatible signals in mixed-signal data acquisition systems. IC Role / Device Role / Timing Role: Uses open-drain outputs sinking to V− and external pullups to translate bipolar inputs into unipolar logic levels. Use Value: Supports 11V output swing independent of V+; enables interface between legacy industrial sensors and modern low-voltage microcontrollers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual comparator with reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX982ESA+ | Identical pinout, same 2% reference accuracy and hysteresis architecture; differs only in internal routing - INA+/INA− swapped vs. INB+/INB− on pins 3/4. | Same window/threshold use cases; requires minor schematic adjustment for input assignment. | Select MAX982ESA+ when input channel labeling aligns with existing layout or when sourcing consistency across multiple designs is prioritized. |
| TLV3702IDR | Lower 1.2µA quiescent current but no internal reference; requires external 1.2V reference; rail-to-rail input; push-pull output (no open-drain). | Not suitable for wire-OR or level-shifting; better for ultra-low-power wake-up triggers where external reference already exists. | Choose TLV3702IDR only if system already includes a precision reference and open-drain functionality is unnecessary. |
Compared with MAX982ESA+, the MAX983ESA+ offers identical electrical performance and package but assigns comparator inputs differently - making it preferable when matching specific signal routing. Versus TLV3702IDR, MAX983ESA+ trades slightly higher current for integrated reference and open-drain flexibility, reducing total solution size and design complexity.
Availability
MAX983ESA+T is available at Aetrix Electronics and suitable for battery-powered systems, threshold detectors, window comparators, and level translators requiring stable component supply across industrial temperature ranges and long product lifecycles.
Supply support for MAX983ESA+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 communications markets.
The MAX983ESA+T belongs to the MAX97x/MAX98x micropower comparator family, engineered specifically for ultra-low-power, single/dual-supply threshold detection with integrated reference - targeting portable instrumentation, energy-efficient monitoring, and reliable power supervision.
FAQ
What is the operating temperature range for the MAX983ESA+T?
The MAX983ESA+T is specified for operation from −40°C to +85°C (Extended temperature range). This rating is confirmed in the Ordering Information table, where "ESA" suffix denotes the SO-8 package with extended temp grade. All electrical characteristics - including supply current ≤4µA, reference accuracy ±3%, and propagation delay - are guaranteed across this full range.
Does the MAX983ESA+T require an external reference?
No, the MAX983ESA+T includes an internal 1.182V ±2% (0°C to +70°C) or ±3% (−40°C to +85°C) bandgap reference output on pin 3 (REF). This reference is referenced to V−, not GND, and is designed to drive external resistor networks for hysteresis or threshold setting without external components.
Can the MAX983ESA+T be used with a single 3V supply?
Yes, the MAX983ESA+T operates from a single 2.5V to 11V supply. At 3V, typical supply current is 3.4µA (C temp) or 5.8µA (E temp), input common-mode range extends from V− (GND) to 1.7V, and propagation delay remains within specification - making it ideal for 3V battery-powered systems.
How is hysteresis implemented on the MAX983ESA+T?
Hysteresis is implemented using the HYST pin (pin 4): connect R1 between REF and HYST, and R2 between HYST and V−. The hysteresis band equals ~2×(REF − VHYST), adjustable from 0 to 100mV. This method avoids external feedback and maintains ultra-low power - a key differentiator of the MAX983ESA+T versus generic comparators.
What is the output configuration of the MAX983ESA+T?
The MAX983ESA+T features two open-drain outputs (OUTA on pin 1, OUTB on pin 8), each sinking current to V− (not GND). This allows level translation across voltage domains and wired-OR logic. An external pullup resistor is required; maximum output voltage is 11V above V−, supporting operation even when V+ is unpowered.
MAX983ESA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- with Voltage Reference
- Number of Elements:
- 2
- 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):
- 6µA
- Current - Quiescent (Max):
- 80dB CMRR, 80dB PSRR
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- 50mV
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-SOIC
MAX983ESA+T FAQ
1.How can I place an order for MAX983ESA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX983ESA+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 MAX983ESA+T reliable?
The price and inventory of MAX983ESA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX983ESA+T is usually 5 days.
3.What payment methods are accepted for MAX983ESA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX983ESA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX983ESA+T?
MAX983ESA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX983ESA+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 MAX983ESA+T?
For technical support, including MAX983ESA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX983ESA+T requirements.
6.How does Aetrix verify that MAX983ESA+T is sourced from the original manufacturer or authorized distributors?
All MAX983ESA+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 MAX983ESA+T meets industry standards.
7.What is the process for return or replacement of MAX983ESA+T?
All MAX983ESA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX983ESA+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 MAX983ESA+T part is unused and in its original packaging.
Return procedure for MAX983ESA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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