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Analog Devices Inc./Maxim Integrated MAX995ESD+
- Part No.:
- MAX995ESD+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX995ESD+.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:113
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Product details
Overview
The MAX995ESD+ from Maxim Integrated is a quad micropower comparator with rail-to-rail inputs and outputs, push-pull output stage, and 120ns propagation delay. It operates from +2.5V to +5.5V single supply (or ±1.25V to ±2.75V dual supply), consumes only 48μA per comparator, and delivers rail-to-rail output swing into 8mA loads - ideal for battery-powered zero-crossing detectors and portable threshold sensing.
For engineers reviewing the MAX995ESD+ datasheet, MAX995ESD+ pinout, MAX995ESD+ application, or MAX995ESD+ equivalent, key selection criteria include its guaranteed 120ns propagation delay at 100mV overdrive, ±0.5mV typical input offset voltage, internal ±2.5mV hysteresis, and SO-14 package compatibility with industrial temperature range (-40°C to +85°C).
Technical Context
The MAX995ESD+ integrates four independent comparators in a single SO-14 package, each featuring rail-to-rail input common-mode range extending 250mV beyond both supply rails and push-pull output capable of sourcing/sinking 8mA. Its unique output stage minimizes supply-current surges during switching, eliminating typical supply glitches without requiring external decoupling beyond a 0.1µF ceramic capacitor at VCC.
Input bias current is typically 1.0pA, enabling high-impedance sensor interfacing; internal hysteresis ensures clean transitions even with slow-moving signals. The device supports stable operation across full -40°C to +85°C ambient, with PSRR of 55dB (min) and CMRR of 50dB (min) under varying supply conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.5V to +5.5V single supply; enables direct use in 3V and 5V systems without level shifting |
| Propagation Delay | 120ns at 100mV overdrive (VCC = 5V); ensures precise timing in high-speed detection circuits |
| Quiescent Current | 48μA per comparator (typ at VCC = 2.7V); extends battery life in portable instrumentation |
| Input Offset Voltage | ±0.5mV (typ); supports accurate threshold detection down to sub-millivolt levels |
| Rail-to-Rail Output | Sources/sinks 8mA while swinging from VEE to VCC; drives LEDs, logic inputs, and analog switches directly |
| Input Common-Mode Range | Extends 250mV beyond rails (VEE −0.25V to VCC +0.25V); accommodates overvoltage transients without phase reversal |
| Operating Temperature | -40°C to +85°C; qualified for industrial and automotive cabin applications |
Pinout & Package
The MAX995ESD+ is housed in a 14-pin SO (Small Outline) package (package code S14-4), with exposed pad not electrically connected. Pin spacing is 1.27mm, body dimensions 8.65mm × 3.90mm × 1.75mm (L × W × H), and RoHS-compliant lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTD | Comparator D output - push-pull, rail-to-rail, sinks/sources up to 8mA |
| 2 | IND− | Comparator D inverting input - high-impedance (1pA typ bias), accepts signals beyond rails |
| 3 | IND+ | Comparator D noninverting input - same high-Z, rail-to-rail common-mode capability |
| 4 | VEE | Negative supply terminal - connects to ground in single-supply mode; sets lower rail reference |
| 5 | VCC | Positive supply terminal - powers all four comparators; requires local 0.1µF bypass |
| 6 | INA+ | Comparator A noninverting input - identical electrical characteristics to pins 2/3/10/12/13 |
| 7 | INA− | Comparator A inverting input - shares same input structure and protection diodes |
| 8 | OUTA | Comparator A output - fully independent push-pull driver, no crosstalk with other outputs |
| 9 | INC+ | Comparator C noninverting input - one of four matched input pairs on die |
| 10 | INC− | Comparator C inverting input - supports differential sensing with 0.5mV offset matching |
| 11 | OUTC | Comparator C output - independently switchable; compatible with 3.3V/5V logic interfaces |
| 12 | INB− | Comparator B inverting input - pin-compatible with all other INx− terminals |
| 13 | INB+ | Comparator B noninverting input - matches INA+/INC+/IND+ in performance and layout symmetry |
| 14 | OUTB | Comparator B output - completes quad output set; supports simultaneous multi-threshold decisions |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O with extended common-mode range | Inputs accept signals from VEE −0.25V to VCC +0.25V; outputs swing fully to rails under 8mA load |
| Ultra-low quiescent current | 48μA per comparator enables >1-year battery life in 1kHz-sampled portable sensors |
| Glitch-free switching architecture | Minimal supply-current surge during output transitions eliminates need for large bulk capacitors |
| Internal hysteresis | ±2.5mV band prevents chatter on noisy or slowly varying inputs without external components |
| High-speed response | 120ns propagation delay at 100mV overdrive supports >1MHz signal monitoring in real time |
Applications
| Zero-Crossing Detection | Threshold Monitoring |
|---|---|
|
Use Scenario: Detecting AC waveform polarity transitions in energy metering or motor control feedback loops. IC Role / Device Role / Timing Role: Quad comparator configured as synchronized zero-crossing detector with hysteresis to reject noise-induced false triggers. Use Value: Enables precise phase alignment using four independent channels - e.g., three-phase voltage sensing plus neutral reference - with <120ns timing resolution. |
Use Scenario: Monitoring battery voltage, temperature sensor output, or supply rail integrity in handheld medical devices. IC Role / Device Role / Timing Role: Four independent window/level comparators generating status flags for low-battery, over-temperature, brown-out, and fault conditions. Use Value: Single SO-14 IC replaces four discrete comparators, reducing PCB area by >60% and eliminating inter-channel skew. |
| Logic-Level Translation | IR Signal Demodulation |
|
Use Scenario: Converting 5V microcontroller GPIO outputs to 3.3V-compatible signals for FPGA or ADC interface. IC Role / Device Role / Timing Role: Push-pull output stage directly drives 3.3V logic inputs without external pull-up resistors or level-shifter ICs. Use Value: Eliminates external components while maintaining <120ns edge fidelity - critical for SPI clock synchronization and fast data capture. |
Use Scenario: Amplifying and squaring weak, noisy IR receiver diode outputs in remote-control receivers. IC Role / Device Role / Timing Role: High-gain, low-noise comparator with rail-to-rail input accepting small AC-coupled signals centered near mid-supply. Use Value: Internal hysteresis rejects EMI-induced jitter; 48μA/quiescent current extends standby time in always-on IR wake-up circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM339DR | Open-collector outputs; 1.3mA supply current per comparator; 300ns propagation delay; no rail-to-rail inputs | Requires external pull-ups; unsuitable for low-voltage (<3V) or high-speed (>100kHz) designs | Select when cost sensitivity outweighs speed/power requirements and open-drain interface is needed |
| TLV3704IPW | Rail-to-rail I/O; 850nA supply current; 3.5μs propagation delay; specified down to 2.7V only | Too slow for zero-crossing or fast pulse discrimination; better for ultra-low-power sensor wake-up | Select only for sub-1kHz threshold detection where nanowatt operation is mandatory and latency is irrelevant |
Compared with LM339DR and TLV3704IPW, the MAX995ESD+ uniquely balances micropower operation (48μA), high speed (120ns), rail-to-rail functionality, and quad integration in an industry-standard SO-14 package - making it optimal for space-constrained, battery-powered systems demanding precision timing and wide supply flexibility.
Availability
The MAX995ESD+ is available at Aetrix Electronics and suitable for portable medical monitors, industrial sensor nodes, and battery-backed smart meters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX995ESD+ 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 industrial, automotive, communications, and computing markets, with emphasis on power efficiency and signal integrity.
The MAX995ESD+ belongs to Maxim's high-speed micropower comparator family, engineered specifically for low-voltage, battery-operated systems needing fast, accurate decision-making with minimal supply disturbance.
FAQ
What is the maximum capacitive load the MAX995ESD+ can drive while maintaining 120ns propagation delay?
The MAX995ESD+ maintains ≤120ns propagation delay (at 100mV overdrive, VCC = 5V) for capacitive loads up to 50pF, as confirmed in the Typical Operating Characteristics graph (Figure TOC8). At 200pF, delay increases to ~40ns. For heavier loads, external buffer stages are recommended to preserve timing integrity in critical detection paths.
Does the MAX995ESD+ require external hysteresis for reliable operation with noisy input signals?
No - the MAX995ESD+ includes built-in ±2.5mV hysteresis, sufficient to suppress chatter from typical PCB noise and sensor ripple. External hysteresis is optional and only needed when wider bands (e.g., >10mV) are required for specific threshold stability; design equations are provided in the Applications Information section of the datasheet.
Can the MAX995ESD+ operate from a single 3.3V supply and still achieve rail-to-rail output swing?
Yes - the MAX995ESD+ is fully specified from +2.5V to +5.5V single supply. At VCC = 3.3V, it delivers rail-to-rail output swing (VOH ≥ 3.15V, VOL ≤ 0.15V at 3.5mA load) and maintains 120ns propagation delay, making it ideal for modern 3.3V embedded systems without level translation overhead.
Is the SO-14 package of the MAX995ESD+ pin-compatible with other quad comparators like the LM339?
No - the MAX995ESD+ uses a proprietary pinout optimized for quad independent operation (e.g., OUTA/INA+/INA−/VEE/VCC/INA+/INA−/OUTA/...), differing fundamentally from the LM339's shared VEE/VCC and grouped output arrangement. PCB redesign is required for substitution; refer to the Pin Configurations diagram on page 11 of the datasheet.
What is the absolute maximum voltage allowed on the MAX995ESD+ inputs relative to VEE?
The MAX995ESD+ inputs tolerate voltages from VEE −0.3V to VCC +0.3V under steady-state conditions. This allows safe interfacing with signals exceeding the supply rails by up to 300mV - critical for handling transient overshoot in motor control or sensor front-ends without damage or phase reversal.
MAX995ESD+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 4
- Output Type:
- CMOS, Push-Pull, Rail-to-Rail, TTL
- Voltage - Supply, Single/Dual (±):
- 2.5V ~ 5.5V, ±1.25V ~ 2.75V
- :
- 5mV @ 5.5V
- Voltage - Input Offset (Max):
- 1pA @ 5.5V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 96µA
- Current - Quiescent (Max):
- 80dB CMRR, 80dB PSRR
- CMRR, PSRR (Typ):
- 210ns
- Propagation Delay (Max):
- ±2.5mV
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 14-SOIC
MAX995ESD+ FAQ
1.How can I place an order for MAX995ESD+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX995ESD+ 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 MAX995ESD+ reliable?
The price and inventory of MAX995ESD+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX995ESD+ is usually 5 days.
3.What payment methods are accepted for MAX995ESD+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX995ESD+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX995ESD+?
MAX995ESD+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX995ESD+ 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 MAX995ESD+?
For technical support, including MAX995ESD+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX995ESD+ requirements.
6.How does Aetrix verify that MAX995ESD+ is sourced from the original manufacturer or authorized distributors?
All MAX995ESD+ 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 MAX995ESD+ meets industry standards.
7.What is the process for return or replacement of MAX995ESD+?
All MAX995ESD+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX995ESD+, 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 MAX995ESD+ part is unused and in its original packaging.
Return procedure for MAX995ESD+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX995ESD+ Tags
-
LM2903DR
Texas Instruments
-
LM339DR
Texas Instruments
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LM339PWR
Texas Instruments
-
LM393DT
STMicroelectronics
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LM2901PWR
Texas Instruments
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LM2903DT
STMicroelectronics
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LM393DR
Texas Instruments
-
LM239DR
Texas Instruments
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LM339APWR
Texas Instruments
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LM2903P
Texas Instruments
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LM393ADR
Texas Instruments
-
NCX2200GMAZ
NXP USA Inc.
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