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Analog Devices Inc./Maxim Integrated MAX983EPA+
- Part No.:
- MAX983EPA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX983EPA+.pdf
- Description:
- IC COMPARATOR 2 W/VOLT REF 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,265
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Product details
Overview
MAX983EPA+ 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 rail-to-rail input voltage range (V− to V+ −1.3V). It is used in battery-powered threshold detectors requiring stable hysteresis and low quiescent power.
For engineers reviewing the MAX983EPA+ datasheet, MAX983EPA+ pinout, MAX983EPA+ application, or MAX983EPA+ equivalent, this page delivers verified specifications, validated pin functions, confirmed dual-comparator operation with shared reference and hysteresis control, and real-world design context for low-voltage, low-power sensing circuits.
Technical Context
The MAX983EPA+ integrates two independent comparators sharing one internal 1.182V bandgap reference and a common HYST pin for simultaneous hysteresis programming. Its open-drain outputs sink to V− (not GND), enabling bipolar-to-single-ended level translation when V− = GND and V+ = 3V/5V.
Input common-mode range extends from V− to V+ −1.3V; propagation delay is 12µs (10mV overdrive); output leakage is ≤100nA at 11V. The device supports extended temperature operation (−40°C to +85°C) and is packaged in an 8-pin plastic DIP (EPA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | Single 2.5V–11V or dual ±1.25V–±5.5V - enables direct use in 3V/5V systems and split-rail analog front-ends. |
| Quiescent Supply Current | ≤4µA over −40°C to +85°C - ensures multi-year battery life in coin-cell–powered sensors. |
| Reference Voltage Accuracy | 1.182V ±2% (0°C to +70°C), ±3% (−40°C to +85°C) - provides stable threshold baseline without external precision reference. |
| Input Common-Mode Range | V− to V+ −1.3V - allows direct sensing of signals near ground or rail in single-supply configurations. |
| Propagation Delay | 12µs (10mV overdrive, 100pF load, 1MΩ pullup) - balances speed and ultra-low power for wake-up and alert detection. |
| Output Configuration | Open-drain, sinks to V− - supports wire-OR logic, level shifting, and compatibility with mixed-voltage I/O domains. |
| Hysteresis Control | HYST pin accepts REF − 50mV to REF - enables precise, resistor-programmed hysteresis without feedback networks. |
Pinout & Package
MAX983EPA+ is housed in an 8-pin plastic DIP (Dual In-line Package) with 0.300" body width and through-hole mounting. Pin 1 is marked by notch or dot; pin numbering follows standard DIP convention (counterclockwise from notch).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for single-supply operation; connect to V− when using single supply. |
| 2 | V− | Negative supply rail; tied to GND in single-supply mode; output sink reference node. |
| 3 | IN+ | Noninverting input of Comparator A - accepts signals up to V+ −1.3V. |
| 4 | IN− | Inverting input of Comparator A - matched offset and leakage with IN+ (±10mV max VOS). |
| 5 | HYST | Hysteresis control input - sets hysteresis band width by voltage relative to REF (REF − 50mV to REF). |
| 6 | REF | 1.182V reference output referenced to V− - sources/sinks up to 25µA/15µA; not bypassed. |
| 7 | V+ | Positive supply rail - supports up to 11V; powers internal circuitry and defines output high-level ceiling. |
| 8 | OUT | Open-drain output of Comparator A - sinks current to V−; requires external pullup for logic-high assertion. |
Key Features
| Feature | Design Value |
|---|---|
| Dual comparator with shared reference | Reduces component count and board space vs. discrete reference + two comparators; ensures matched reference tracking across both channels. |
| Programmable hysteresis via HYST pin | Eliminates need for external feedback resistors or op-amp-based hysteresis circuits; enables <100mV hysteresis band with two resistors. |
| Open-drain outputs sinking to V− | Enables level translation between bipolar (e.g., ±5V) and single-ended (e.g., 3.3V) domains without level-shifter ICs. |
| Rail-to-rail input range (V− to V+ −1.3V) | Supports direct monitoring of battery voltage, sensor outputs, or supply rails without signal conditioning amplifiers. |
| Ultra-low 4µA supply current | Extends operational lifetime in energy-harvesting and coin-cell–powered applications where µA-level sleep current is critical. |
Applications
| Battery Voltage Monitor | Power-Good Window Detector |
|---|---|
|
Use Scenario: Monitoring Li-ion or alkaline battery voltage to trigger low-battery alerts or switchover to backup power. IC Role / Device Role / Timing Role: Dual comparator compares battery voltage against upper (overvoltage) and lower (undervoltage) thresholds derived from internal REF and resistor dividers. Use Value: Eliminates external reference and reduces BOM count; hysteresis prevents chatter near threshold crossings during gradual discharge. |
Use Scenario: Validating regulated DC supply stability in microcontroller-based systems before enabling peripherals. IC Role / Device Role / Timing Role: Configured as window detector (e.g., 4.5V–5.5V), with OUTA and OUTB wired-OR'd to generate active-high POWER_GOOD signal. Use Value: Internal REF and HYST pin simplify threshold setting; open-drain outputs allow direct OR-ing without additional logic gates. |
| Low-Power Sensor Wake-Up Circuit | Bipolar-to-Single-Ended Level Translator |
|
Use Scenario: Waking a microcontroller from deep sleep when ambient light, temperature, or motion exceeds preset thresholds. IC Role / Device Role / Timing Role: Comparator A monitors sensor output; HYST pin adds noise immunity; output triggers MCU interrupt via pullup to VDD_IO. Use Value: 4µA quiescent current ensures negligible standby drain; rail-to-rail inputs interface directly with resistive sensor bridges. |
Use Scenario: Converting ±5V analog signals (e.g., from industrial sensors) to 0–3.3V logic-compatible levels for ADC input. IC Role / Device Role / Timing Role: Uses V− = −5V, V+ = 0V, GND = system ground; output sinks to V−, pulled up to 3.3V - translates negative inputs to logic-low, positive to logic-high. Use Value: No external level-shifting IC required; output voltage swing spans full 0–3.3V range with defined logic thresholds. |
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+ | Same pinout, same 8-pin SO package, identical electrical specs; differs only in package (SO vs. DIP) and temp grade (E-grade same). | Preferred for surface-mount PCBs; identical functionality and layout compatibility with MAX983EPA+. | Select MAX982ESA+ for automated assembly; MAX983EPA+ for through-hole prototyping or legacy DIP designs. |
| TLV3702IDR | Lower supply current (1.8µA), no internal reference, rail-to-rail I/O, but requires external reference and hysteresis network. | Suitable where ultra-low current dominates over BOM simplicity; not drop-in due to missing REF/HYST pins. | Choose TLV3702IDR only if reference independence and sub-2µA IQ are mandatory; MAX983EPA+ saves 3–4 passive components per channel. |
Compared with MAX982ESA+, MAX983EPA+ offers identical performance in a through-hole package for manual assembly or socketed evaluation; compared with TLV3702IDR, it trades minor IQ reduction for integrated reference and hysteresis control-reducing design time, component count, and layout risk in low-power sensing nodes.
Availability
MAX983EPA+ is available at Aetrix Electronics and suitable for battery-powered systems, threshold detectors, window comparators, and level translators requiring stable component supply across industrial and embedded design cycles.
Supply support for MAX983EPA+ 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 MAX98x series targets ultra-low-power sensing and monitoring, delivering micropower comparators with integrated references to simplify battery-operated and energy-constrained system designs.
FAQ
What is the maximum supply voltage for MAX983EPA+?
The MAX983EPA+ supports a maximum total supply voltage of 11V - either as a single 2.5V–11V supply (V+ to V−) or dual ±1.25V–±5.5V supplies. Absolute maximum ratings specify V+ to V− up to +12V, but functional operation is guaranteed only up to 11V per the Electrical Characteristics table. Exceeding 11V risks parametric degradation or reliability impact.
Does MAX983EPA+ have an internal voltage reference?
Yes, the MAX983EPA+ includes an internal 1.182V bandgap voltage reference referenced to V−, with ±2% accuracy over 0°C to +70°C and ±3% over −40°C to +85°C. This reference is accessible at the REF pin and can source up to 25µA or sink up to 15µA - sufficient to drive hysteresis resistors and small external loads without buffering.
How is hysteresis implemented on MAX983EPA+?
Hysteresis on the MAX983EPA+ is implemented via the HYST pin: connect R1 between REF and HYST, and R2 between HYST and V−. The hysteresis band (VHB) ≈ 2 × (VREF − VHYST), adjustable from 0mV (HYST = REF) to 100mV (HYST = REF − 50mV). This method applies identical hysteresis to both comparators and avoids external feedback loops or op-amps.
What is the output configuration of MAX983EPA+?
The MAX983EPA+ features open-drain outputs that sink current to V− (not GND), enabling flexible level translation. When V− = GND, outputs behave like standard open-drain logic; when V− = −5V, outputs can sink below ground - ideal for bipolar-to-single-ended conversion. An external pullup resistor is required to define the logic-high voltage level.
Can MAX983EPA+ operate from a 3V single supply?
Yes, the MAX983EPA+ is fully specified and functional at 3V single supply (V+ = 3V, V− = GND). Supply current remains ≤4µA, input common-mode range covers 0V to 1.7V, and propagation delay is 12µs (10mV overdrive). The internal reference maintains 1.182V ±2% accuracy, making it suitable for 3V battery-monitoring and low-voltage IoT sensor interfaces.
MAX983EPA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- Through Hole
- :
- 8-PDIP
MAX983EPA+ FAQ
1.How can I place an order for MAX983EPA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX983EPA+ 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 MAX983EPA+ reliable?
The price and inventory of MAX983EPA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX983EPA+ is usually 5 days.
3.What payment methods are accepted for MAX983EPA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX983EPA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX983EPA+?
MAX983EPA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX983EPA+ 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 MAX983EPA+?
For technical support, including MAX983EPA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX983EPA+ requirements.
6.How does Aetrix verify that MAX983EPA+ is sourced from the original manufacturer or authorized distributors?
All MAX983EPA+ 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 MAX983EPA+ meets industry standards.
7.What is the process for return or replacement of MAX983EPA+?
All MAX983EPA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX983EPA+, 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 MAX983EPA+ part is unused and in its original packaging.
Return procedure for MAX983EPA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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