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Analog Devices Inc./Maxim Integrated MAX983ESA+
- Part No.:
- MAX983ESA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX983ESA+.pdf
- Description:
- IC COMPARATOR 2 W/VOLT REF 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,180
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Product details
Overview
The MAX983ESA+ 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 and window comparators requiring micropower operation.
For engineers reviewing the MAX983ESA+ datasheet, MAX983ESA+ pinout, MAX983ESA+ application, or MAX983ESA+ equivalent, key selection criteria include its 4µA quiescent current, 12µs propagation delay at 10mV overdrive, ±2% reference accuracy, open-drain output compatible with wire-OR configurations, and dual-comparator architecture with shared REF/HYST pins for compact hysteresis implementation.
Technical Context
The MAX983ESA+ integrates two independent comparators sharing a common internal 1.182V bandgap reference and a dedicated HYST pin for user-programmable hysteresis without external feedback. Its input stage accepts voltages from V− to (V+ −1.3V), enabling robust operation in single-supply systems where signals approach the positive rail.
Both outputs are open-drain N-channel MOSFETs sinking to V− (not GND), matching the MAX982/MAX983 functional group. The device lacks a separate GND pin for outputs-unlike MAX971/MAX981-making it suitable for level translation between negative-referenced domains but not bipolar-to-single-ended conversion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | Single 2.5V to 11V or dual ±1.25V to ±5.5V - supports wide input rail flexibility including 3V/5V battery and industrial rails. |
| Quiescent Supply Current | ≤4µA over temperature - enables multi-year operation in coin-cell–powered IoT sensors and portable devices. |
| Reference Voltage Accuracy | 1.182V ±2% (0°C to +70°C) - provides stable threshold generation with predictable hysteresis band control. |
| Propagation Delay | 12µs at 10mV overdrive - balances speed and power for low-frequency monitoring (e.g., battery voltage windows). |
| Input Common-Mode Range | V− to (V+ −1.3V) - allows direct sensing of signals near V+ without level-shifting circuitry. |
| Output Type | Open-drain, sinks to V− - enables wired-OR logic, level translation across different ground domains, and pullup to arbitrary voltage. |
| Hysteresis Control | HYST pin accepts REF − 50mV to REF - permits precise 0–100mV hysteresis band tuning using two external resistors. |
Pinout & Package
MAX983ESA+ is housed in an 8-pin SO (Small Outline) package with gull-wing leads, JEDEC MS-012AC compliant, body size 4.9mm × 3.9mm × 1.75mm.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTA | Open-drain output of Comparator A; sinks current to V−; requires external pullup for logic-high assertion. |
| 2 | V− | Negative supply rail; connect to GND in single-supply mode; defines reference point for REF and input common-mode range. |
| 3 | INA+ | Noninverting input of Comparator A; accepts voltage from V− to (V+ −1.3V); high-impedance (±0.01nA leakage). |
| 4 | INB− | Inverting input of Comparator B; identical electrical characteristics to INA+; enables differential or window configurations. |
| 5 | HYST | Hysteresis control input; sets hysteresis band width by voltage divider from REF; range: REF − 50mV to REF. |
| 6 | REF | 1.182V bandgap reference output referenced to V−; sources/sinks up to 25µA/15µA; must not be bypassed. |
| 7 | V+ | Positive supply rail; determines maximum input common-mode and output swing capability (up to 11V above V−). |
| 8 | OUTB | Open-drain output of Comparator B; electrically identical to OUTA; supports independent or wired-OR logic outputs. |
Key Features
| Feature | Design Value |
|---|---|
| Dual comparator with shared reference | Reduces component count and board space in window detectors and dual-threshold systems without sacrificing independence. |
| Programmable hysteresis via HYST pin | Eliminates need for external feedback resistors or op-amp-based hysteresis circuits, cutting design time and layout complexity. |
| Ultra-low 4µA supply current | Enables continuous monitoring in energy-harvesting and battery-backed applications with >10-year shelf life on CR2032 cells. |
| Wide supply range (2.5V–11V) | Supports direct interface with Li-ion, 3.3V logic, 5V peripherals, and legacy 9V/12V industrial rails without regulators. |
| Input range to within 1.3V of V+ | Permits direct sensing of unattenuated supply rails (e.g., 5V system monitoring with 3.7V V+) without resistor dividers. |
Applications
| Battery Voltage Window Detection | Power-Good Monitoring |
|---|---|
Use Scenario: Monitoring lithium-ion battery pack voltage to trigger undervoltage lockout (<4.0V) and overvoltage protection (>4.3V) during charging/discharging. IC Role / Device Role / Timing Role: Dual comparator compares battery voltage against thresholds derived from REF and resistor dividers; HYST pin adds 20mV hysteresis per threshold. Use Value: Prevents false triggering due to noise or load transients, extending battery cycle life and ensuring safe cutoff margins. |
Use Scenario: Validating stable 3.3V and 5V rails in microcontroller-based embedded systems before firmware initialization. IC Role / Device Role / Timing Role: One comparator monitors 3.3V rail vs. REF-derived threshold; second monitors 5V rail; outputs wired-OR to generate active-high POWER_GOOD signal. Use Value: Guarantees deterministic boot sequence by asserting reset only after both supplies settle within tolerance. |
| Low-Power Sensor Threshold Alert | Industrial Level Translation |
Use Scenario: Detecting gas sensor output crossing alarm threshold in wireless environmental node powered by solar harvester. IC Role / Device Role / Timing Role: Single comparator (e.g., OUTA) compares analog sensor output to REF-scaled threshold; HYST eliminates chatter near trip point. Use Value: Draws <4µA continuously while providing reliable event detection, maximizing energy budget for RF transmission. |
Use Scenario: Converting ±5V analog signals from legacy instrumentation to 3.3V logic-compatible levels for ADC input in modern data acquisition modules. IC Role / Device Role / Timing Role: Comparator acts as rail-to-rail input receiver; open-drain output pulled to 3.3V, referenced to local GND while inputs tied to ±5V domain. Use Value: Isolates ground domains and avoids level-shifter ICs, reducing BOM cost and PCB area in mixed-voltage systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual micropower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX982ESA+ | Identical pinout, same 4µA supply current and ±2% reference, but configured as non-window dual comparator (INA+/INA− and INB+/INB−). | No shared HYST/REF pins; each comparator requires independent hysteresis setup if needed. | Select MAX982ESA+ when independent hysteresis per channel is required or when window detector topology is not used. |
| TLV3702IDR | Lower 1.2µA supply current, rail-to-rail I/O, but no internal reference; requires external voltage source for threshold setting. | Lacks integrated REF and HYST functionality; demands additional components for reference and hysteresis generation. | Select TLV3702IDR when ultra-low current dominates design priority and external reference/hysteresis is acceptable. |
Compared with MAX982ESA+, the MAX983ESA+ offers built-in hysteresis control for window applications with fewer external parts; compared with TLV3702IDR, it trades modest current increase for integrated reference and simplified threshold design-reducing total solution size and validation effort.
Availability
MAX983ESA+ is available at Aetrix Electronics and suitable for battery-powered systems, power-good monitors, sensor threshold detectors, and industrial level translators requiring stable component supply and long-term obsolescence support.
Supply support for MAX983ESA+ 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, medical, and communications markets.
The MAX98x series targets ultra-low-power comparator applications where micropower operation, integrated reference, and programmable hysteresis reduce system-level component count and improve reliability in portable and remote systems.
FAQ
What is the maximum supply voltage for MAX983ESA+?
The MAX983ESA+ supports a total supply voltage up to 11V in single-supply mode (V+ to V−) or ±5.5V in dual-supply mode. Absolute maximum ratings specify V+ to V− up to +12V, but functional operation is guaranteed only up to 11V. Exceeding this may cause permanent damage or parametric shift.
Does MAX983ESA+ have a separate ground pin for its outputs?
No, the MAX983ESA+ does not have a separate GND pin for outputs. Its open-drain outputs (OUTA and OUTB) sink current to V−, not to a dedicated GND terminal. This differs from MAX971/MAX981 and aligns with MAX982/MAX983's architecture for V−-referenced level translation.
Can MAX983ESA+ operate from a 3V single supply?
Yes, the MAX983ESA+ is fully specified for 3V single-supply operation (V+ = 3V, V− = GND). Electrical characteristics-including 4µA supply current, 12µs propagation delay, and input common-mode range-remain valid at 3V, making it ideal for modern low-voltage embedded systems.
How is hysteresis programmed on MAX983ESA+?
Hysteresis on MAX983ESA+ is programmed using the HYST pin: connect R1 between REF and HYST, and R2 between HYST and V−. The hysteresis band equals ~2×(REF − VHYST), adjustable from 0 to 100mV. No external op-amps or feedback paths are required-this is a core feature of the MAX983ESA+ architecture.
What is the accuracy of the internal reference in MAX983ESA+?
The internal reference of MAX983ESA+ is 1.182V ±2% over the commercial temperature range (0°C to +70°C) and ±3% over the extended range (−40°C to +85°C). This specification is explicitly confirmed in the "REFERENCE" section of the datasheet for MAX981–MAX984 variants.
MAX983ESA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- 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+ FAQ
1.How can I place an order for MAX983ESA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX983ESA+ 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+ reliable?
The price and inventory of MAX983ESA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX983ESA+ is usually 5 days.
3.What payment methods are accepted for MAX983ESA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX983ESA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX983ESA+?
MAX983ESA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX983ESA+ 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+?
For technical support, including MAX983ESA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX983ESA+ requirements.
6.How does Aetrix verify that MAX983ESA+ is sourced from the original manufacturer or authorized distributors?
All MAX983ESA+ 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+ meets industry standards.
7.What is the process for return or replacement of MAX983ESA+?
All MAX983ESA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX983ESA+, 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+ part is unused and in its original packaging.
Return procedure for MAX983ESA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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