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Analog Devices Inc./Maxim Integrated MAX984CSE+T
- Part No.:
- MAX984CSE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX984CSE+T.pdf
- Description:
- IC COMPARATR 4 W/VOLT REF 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,038
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Product details
Overview
The MAX984CSE+T from Maxim Integrated is a quad ultra-low-power open-drain comparator with internal 1.182V ±2% voltage reference, 4µA max supply current over temperature, and dual-supply operation (±1.25V to ±5.5V). It features separate GND pin for output transistors, 12µs propagation delay (10mV overdrive), and input common-mode range from V− to V+ − 1.3V - ideal for battery-powered threshold detection and level translation in space-constrained industrial sensor interfaces.
For engineers reviewing the MAX984CSE+T datasheet, MAX984CSE+T pinout, MAX984CSE+T application, or MAX984CSE+T equivalent, this page delivers verified specifications, exact pin functions, real-world use cases in window detection and bipolar-to-single-ended conversion, and two validated alternative parts with documented technical and application differences.
Technical Context
The MAX984CSE+T integrates four independent comparators sharing a single precision bandgap reference. Each comparator uses an N-channel open-drain output stage sinking to GND (not V−), enabled by its dedicated GND pin - a key distinction from MAX982/MAX983 variants that sink to V−. This architecture supports true level-shifting across isolated supply domains.
It lacks internal hysteresis (unlike MAX981–MAX983) and requires external positive feedback for hysteresis implementation. The reference output (REF) is referenced to V−, not GND, and provides ±2% accuracy over 0°C to +70°C with 25µA source/15µA sink capability - sufficient for biasing external resistor networks but not intended for bypassing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | Single: 2.5V to 11V; Dual: ±1.25V to ±5.5V - enables direct interface with 3.3V/5V logic and legacy ±5V analog systems. |
| Quiescent Supply Current | ≤4µA over temperature - allows multi-year operation on coin-cell batteries in always-on monitoring circuits. |
| Reference Voltage Accuracy | 1.182V ±2% (0°C to +70°C) - sets absolute threshold tolerance in undervoltage/overvoltage detectors without external trimming. |
| Propagation Delay | 12µs (10mV overdrive, 100pF load, 1MΩ pullup) - defines minimum response time for slow-varying signals like battery voltage monitoring. |
| Input Common-Mode Range | V− to V+ − 1.3V - permits rail-to-rail input sensing in single-supply configurations without level shifting. |
| Output Voltage Range | 0V to 11V above V− - supports high-side switching and level translation up to 11V logic families even with no V+ applied. |
| Input Offset Voltage | ±10mV - determines minimum detectable signal differential in precision threshold applications. |
Pinout & Package
MAX984CSE+T is housed in a 16-pin narrow SO (SOICN) package with 0.150" width and standard JEDEC outline. Pin 1 is OUTA; pin 16 is V+. The package includes dedicated GND (pin 14) for output-stage return, distinct from V− (pin 9), enabling true ground-referenced sinking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 15, 16 | OUTA, OUTB, OUTC, OUTD | Open-drain outputs sinking to GND (pin 14); require external pullup for logic-high assertion. |
| 3, 4, 5, 6, 10, 11, 12, 13 | INA+, INA−, INB+, INB−, INC+, INC−, IND+, IND− | Dedicated noninverting/inverting inputs for each of four comparators; fully independent signal paths. |
| 7 | REF | 1.182V reference output referenced to V− (pin 9); supplies stable threshold for all comparators. |
| 8 | V+ | Positive supply input; must be ≥2.5V above V− for guaranteed operation. |
| 9 | V− | Negative supply input; tied to GND in single-supply mode; defines reference and input common-mode baseline. |
| 14 | GND | Dedicated ground for output transistor sources - electrically isolated from V− to enable bipolar-to-single-ended conversion. |
Key Features
| Feature | Design Value |
|---|---|
| Quad comparator + integrated reference | Reduces BOM count and PCB area vs. discrete reference + four comparators; eliminates matching drift between channels. |
| Separate GND pin for outputs | Enables level translation between isolated voltage domains - e.g., converting ±5V analog signals to 3.3V logic without shared ground. |
| Ultra-low 4µA supply current | Extends battery life in portable medical sensors and IoT edge nodes where duty cycling is impractical. |
| 11V output voltage range | Allows direct driving of higher-voltage peripherals (e.g., optocouplers, relays) without external level-shifting transistors. |
| Input range to V+ − 1.3V | Supports accurate sensing near supply rails - critical for detecting brownout conditions in 3.3V microcontroller power rails. |
Applications
| Battery Voltage Monitoring | Power-Good Window Detection |
|---|---|
|
Use Scenario: Monitoring Li-ion battery pack voltage during charging/discharging to trigger low-battery alert and overvoltage cutoff. IC Role / Device Role / Timing Role: Quad comparator compares battery voltage against four thresholds derived from REF: under-voltage, nominal, over-voltage, and critical over-voltage. Use Value: Single MAX984CSE+T replaces four discrete comparators and one reference IC, reducing footprint by >60% and eliminating inter-channel offset mismatch. |
Use Scenario: Validating stable 5V system supply before enabling FPGA configuration or MCU boot sequence. IC Role / Device Role / Timing Role: Two comparators form a window detector (using REF and resistor dividers) to assert "power-good" only when supply is within 4.75V–5.25V. Use Value: Internal REF ensures consistent hysteresis and threshold tracking across temperature, eliminating need for precision external resistors. |
| Bipolar-to-Single-Ended Level Translation | Industrial Sensor Threshold Alarm |
|
Use Scenario: Converting ±10V analog sensor outputs (e.g., strain gauge bridge) into 0–3.3V logic-compatible signals for microcontroller ADC input. IC Role / Device Role / Timing Role: Comparator A compares negative input against REF; comparator B compares positive input - outputs wire-ORed to generate digital alarm. Use Value: Dedicated GND pin allows output pullup to 3.3V while inputs reference ±10V supplies - no level-shifter IC or isolation required. |
Use Scenario: Detecting out-of-range temperature readings from RTD or thermistor circuits in factory automation PLC modules. IC Role / Device Role / Timing Role: One comparator channel monitors conditioned sensor voltage; remaining three channels reserved for auxiliary alarms (e.g., open-circuit, short-circuit, calibration fault). Use Value: 4µA quiescent current enables always-on monitoring in energy-harvesting sensor nodes powered by solar cells or piezoelectric harvesters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX974CSE | Internal 1.182V ±1% reference (vs. ±2%); no HYST pin; same 16-pin SO package and pinout. | Better threshold accuracy for precision voltage monitoring; identical functional interface and layout compatibility. | Select MAX974CSE when ±1% reference tolerance is required for compliance with IEC 61000-4-30 Class A power quality meters. |
| LM339DR | Higher 2mA supply current; no internal reference; wider operating temperature (−40°C to +125°C); 14-pin SOIC. | Requires external reference and pullup resistors; suited for high-temp automotive engine control, not ultra-low-power battery apps. | Choose LM339DR only for cost-sensitive, non-battery applications where extended temperature range outweighs 500× higher current draw. |
Compared with MAX984CSE+T, MAX974CSE offers tighter reference accuracy at identical power and pinout, while LM339DR trades micropower operation for ruggedness and cost - making MAX984CSE+T optimal for compact, long-life portable instrumentation where reference stability and current efficiency are primary constraints.
Availability
MAX984CSE+T is available at Aetrix Electronics and suitable for battery-powered systems, industrial sensor interfaces, and power-supply monitoring applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX984CSE+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, medical, and communications markets.
The MAX971–MAX984 family was engineered specifically for ultra-low-power threshold detection in portable and energy-constrained systems, prioritizing sub-5µA operation, integrated references, and flexible single/dual-supply operation.
FAQ
What is the maximum supply voltage for MAX984CSE+T?
The MAX984CSE+T supports a total supply voltage up to 11V - meaning V+ − V− ≤ 11V. In single-supply mode (V− = GND), V+ may range from 2.5V to 11V. In dual-supply mode, it operates from ±1.25V to ±5.5V. Exceeding 11V total supply risks permanent damage per Absolute Maximum Ratings.
Does MAX984CSE+T include internal hysteresis?
No, the MAX984CSE+T does not include internal hysteresis. Unlike MAX981–MAX983 variants, it requires external positive feedback (e.g., resistor network from output to IN+) to implement hysteresis. This design choice preserves lowest possible supply current and simplifies reference routing for multi-threshold applications.
Can MAX984CSE+T operate from a 1.8V single supply?
No, MAX984CSE+T is not specified for 1.8V operation. Its guaranteed minimum single-supply voltage is 2.5V. While some comparators in the family (e.g., MAX974) may function down to ~2.2V, performance degrades significantly below 2.5V - reference output becomes unstable and propagation delay increases substantially.
What is the purpose of the separate GND pin on MAX984CSE+T?
The dedicated GND pin (pin 14) provides the return path for all four open-drain output transistors. This isolation from V− (pin 9) enables true level translation - for example, inputs can reference ±5V supplies while outputs pull down to a separate 3.3V logic ground, eliminating ground-loop issues in mixed-voltage systems.
How is the reference voltage (REF) referenced on MAX984CSE+T?
The REF pin outputs 1.182V with respect to V− (pin 9), not GND (pin 14). Therefore, if V− is tied to GND, REF = 1.182V relative to system ground. But if V− is at −3V (dual supply), REF = −1.818V relative to system ground. This referencing must be accounted for when designing resistor dividers for threshold setting.
MAX984CSE+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:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 16-SOIC
MAX984CSE+T FAQ
1.How can I place an order for MAX984CSE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX984CSE+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 MAX984CSE+T reliable?
The price and inventory of MAX984CSE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX984CSE+T is usually 5 days.
3.What payment methods are accepted for MAX984CSE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX984CSE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX984CSE+T?
MAX984CSE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX984CSE+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 MAX984CSE+T?
For technical support, including MAX984CSE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX984CSE+T requirements.
6.How does Aetrix verify that MAX984CSE+T is sourced from the original manufacturer or authorized distributors?
All MAX984CSE+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 MAX984CSE+T meets industry standards.
7.What is the process for return or replacement of MAX984CSE+T?
All MAX984CSE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX984CSE+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 MAX984CSE+T part is unused and in its original packaging.
Return procedure for MAX984CSE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX984CSE+T Tags
-
LM2903DR
Texas Instruments
-
LM339DR
Texas Instruments
-
LM339PWR
Texas Instruments
-
LM393DT
STMicroelectronics
-
LM2901PWR
Texas Instruments
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LM2903DT
STMicroelectronics
-
LM393DR
Texas Instruments
-
LM239DR
Texas Instruments
-
LM339APWR
Texas Instruments
-
LM2903P
Texas Instruments
-
LM393ADR
Texas Instruments
-
NCX2200GMAZ
NXP USA Inc.
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