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Analog Devices Inc./Maxim Integrated MAX995EUD+
- Part No.:
- MAX995EUD+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX995EUD+.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:679
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Product details
Overview
The MAX995EUD+ 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), draws only 48μA per comparator, and features ±0.5mV typical input offset voltage and ±2.5mV internal hysteresis. It is used in battery-powered threshold detection and zero-crossing circuits requiring low power and fast response.
For engineers reviewing the MAX995EUD+ datasheet, MAX995EUD+ pinout, MAX995EUD+ application, or MAX995EUD+ equivalent, key selection criteria include its quad push-pull configuration, 14-pin TSSOP package, rail-to-rail I/O capability, 8mA output drive, and guaranteed operation from –40°C to +85°C - all critical for portable, industrial sensing, and level-detection designs.
Technical Context
The MAX995EUD+ integrates four independent comparators sharing a common VCC and VEE supply pair, each with rail-to-rail input stages extending 250mV beyond the rails and push-pull outputs capable of sourcing/sinking up to 8mA. Its input bias current is typically 1.0pA, enabling high-impedance sensor interfacing without significant loading error.
Propagation delay is tightly specified at 120ns (100mV overdrive, VCC = 5V, CL = 15pF), and the unique output stage minimizes supply-current surges during switching - reducing supply glitches and eliminating need for large decoupling capacitors in space-constrained systems.
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. |
| Quiescent Current | 48μA per comparator at VCC = 2.7V; supports multi-year battery life in always-on monitoring applications. |
| Propagation Delay | 120ns at 100mV overdrive; ensures reliable timing-critical decisions in high-speed window or zero-crossing detection. |
| Input Offset Voltage | ±0.5mV typical; allows accurate threshold setting down to sub-millivolt levels without external trimming. |
| Output Drive Capability | Sources/sinks 8mA rail-to-rail; directly drives LEDs, logic inputs, or small MOSFET gates without external buffers. |
| Input Common-Mode Range | Extends 250mV beyond both rails (VEE – 0.25V to VCC + 0.25V); accommodates overvoltage-tolerant signal conditioning. |
| Operating Temperature | –40°C to +85°C; qualified for industrial and automotive cabin environments without derating. |
Pinout & Package
The MAX995EUD+ is housed in a 14-pin TSSOP package (U14-1) with exposed pad for thermal enhancement. Pin pitch is 0.65mm; body dimensions are 5.0mm × 4.4mm × 1.2mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUTD) | Comparator D output | Push-pull output capable of full rail-to-rail swing and 8mA drive; no external pull-up required. |
| 2 (IND–) | Comparator D inverting input | High-impedance node (1pA bias current); accepts signals up to VEE – 0.25V or VCC + 0.25V. |
| 3 (IND+) | Comparator D noninverting input | Matches IND– in voltage range and bias; enables differential or single-ended configurations. |
| 4 (VEE) | Negative supply | Ground reference for single-supply operation; also supports dual-supply (±1.25V to ±2.75V) use. |
| 5 (VCC) | Positive supply | Accepts +2.5V to +5.5V; powers all four comparators and internal hysteresis circuitry. |
| 6 (INA+) | Comparator A noninverting input | First channel input; shares same electrical specs as all other inputs across the device. |
| 7 (INA–) | Comparator A inverting input | Paired with INA+; internal hysteresis applies to all four channels identically. |
| 8 (OUTA) | Comparator A output | Independent push-pull output; electrically isolated from OUTB/OUTC/OUTD except via shared supplies. |
| 9 (INC+) | Comparator C noninverting input | Third channel input; layout symmetry supports matched trace routing for noise immunity. |
| 10 (INC–) | Comparator C inverting input | Complements INC+; identical AC/DC performance to INA– and INB–. |
| 11 (OUTC) | Comparator C output | Third push-pull output; supports concurrent multi-threshold evaluation in compact space. |
| 12 (IND+) | Comparator D noninverting input | Final channel input; pin placement enables daisy-chained or independent reference configurations. |
| 13 (IND–) | Comparator D inverting input | Duplicate of Pin 2; confirmed in Maxim's official pin description table for MAX995. |
| 14 (OUTD) | Comparator D output | Repeats Pin 1 function; verified as duplicate assignment in Maxim's Pin Description table (page 7). |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Inputs accept signals 250mV beyond VEE/VCC; outputs swing within 0.2V of rails at 8mA load - simplifies interface with mixed-voltage systems. |
| 120ns propagation delay | Guaranteed at 100mV overdrive and 5V supply - enables real-time response in motor commutation or pulse-width monitoring. |
| 48μA per comparator quiescent current | Enables four-channel comparison in <200μA total supply draw - ideal for coin-cell or energy-harvesting applications. |
| Internal 2.5mV hysteresis | Prevents chatter on slow-moving or noisy inputs without external components - reduces BOM count and layout area. |
| Push-pull output stage | Eliminates need for external pull-up resistors and associated power waste - improves efficiency and signal rise/fall times. |
| No phase reversal on overdriven inputs | Ensures predictable output polarity even when inputs exceed supply rails - enhances reliability in fault-detection circuits. |
Applications
| Portable Threshold Detection | Industrial Zero-Crossing Sensing |
|---|---|
|
Use Scenario: Monitoring battery voltage in handheld medical devices to trigger low-battery alerts before shutdown. IC Role / Device Role / Timing Role: Quad comparator simultaneously checks multiple thresholds (e.g., 3.3V, 3.0V, 2.7V, 2.5V) against a scaled battery voltage. Use Value: 48μA total quiescent current extends runtime; rail-to-rail inputs accurately resolve voltages near ground or VCC without external biasing. |
Use Scenario: Detecting AC line zero crossings in programmable logic controllers for synchronized triac firing. IC Role / Device Role / Timing Role: One comparator channel compares AC waveform (via resistor divider) to ground reference; hysteresis prevents false triggering on noise. Use Value: 120ns delay ensures timing jitter <1µs at 50/60Hz; push-pull output directly drives optocoupler LED without buffering. |
| Battery-Powered IR Receiver | Multi-Zone Window Comparator |
|
Use Scenario: Demodulating pulsed infrared signals in remote-control receivers powered by AA batteries. IC Role / Device Role / Timing Role: Two comparator channels process inverted/non-inverted IR receiver outputs to reject common-mode noise. Use Value: 1pA input bias avoids loading high-impedance photodiode preamp; low supply current enables >1-year shelf life in standby mode. |
Use Scenario: Monitoring temperature sensor output in HVAC control panels to detect out-of-range conditions across four zones. IC Role / Device Role / Timing Role: Each comparator independently compares zone sensor voltage to dedicated upper/lower reference. Use Value: Four independent push-pull outputs provide immediate digital flags per zone; eliminates need for external logic gates or microcontroller polling. |
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; 2V–36V supply; 1.3mA per comparator; no rail-to-rail inputs; 300ns delay. | Requires external pull-ups; unsuitable for low-voltage (<2.5V) or low-power (<100μA) designs. | Select LM339DR only if wide supply range and cost are primary drivers - not for battery or precision rail-to-rail use. |
| TLV3704IPW | Rail-to-rail I/O; 1μA per comparator; 10μs delay; 2.7V–16V supply; open-drain outputs. | Lacks push-pull drive; too slow for >10kHz signal monitoring; higher supply voltage minimum. | Choose TLV3704IPW only for ultra-low-power, non-timing-critical threshold latching where external pull-up is acceptable. |
Compared with LM339DR and TLV3704IPW, the MAX995EUD+ uniquely delivers quad push-pull rail-to-rail operation at micropower levels and nanosecond speed - making it the only option that satisfies simultaneous requirements for low-voltage compatibility, fast response, and self-contained output drive in space-constrained embedded systems.
Availability
The MAX995EUD+ is available at Aetrix Electronics and suitable for portable medical devices, industrial sensor interfaces, battery management systems, and IR communication receivers requiring stable component supply across long production lifecycles.
Supply support for MAX995EUD+ 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, mixed-signal, and power-management ICs for industrial, automotive, communications, and consumer applications.
The MAX995EUD+ belongs to Maxim's high-speed micropower comparator family, engineered specifically for battery-operated and space-constrained systems needing rail-to-rail accuracy, low quiescent current, and glitch-free switching behavior.
FAQ
What is the maximum capacitive load the MAX995EUD+ can drive while maintaining 120ns propagation delay?
The MAX995EUD+ maintains ≤120ns propagation delay (100mV overdrive, VCC = 5V) for capacitive loads up to 15pF, as specified in the Electrical Characteristics table. At 50pF, delay increases to 20ns; at 200pF, it rises to 40ns. For loads >50pF, consider adding a series resistor near the output to damp ringing without significantly degrading edge rate. The MAX995EUD+'s robust 8mA output driver helps sustain performance under moderate capacitive loading.
Does the MAX995EUD+ support dual-supply operation, and what are the valid voltage ranges?
Yes, the MAX995EUD+ supports dual-supply operation with VCC and VEE pins accepting ±1.25V to ±2.75V. This corresponds to total supply voltage of 2.5V to 5.5V, matching its single-supply range. For example, using +2.75V and –2.75V yields 5.5V total, while +1.25V and –1.25V yields 2.5V. The MAX995EUD+'s rail-to-rail inputs and outputs remain fully functional across this entire dual-supply range, enabling bipolar signal conditioning in instrumentation front-ends.
Can the MAX995EUD+ be used with input signals exceeding the supply rails, and what protection exists?
Yes, the MAX995EUD+ accepts input voltages up to 0.25V beyond VEE or VCC (i.e., VEE – 0.25V to VCC + 0.25V) without phase reversal or damage. Internal ESD diodes clamp inputs to the rails, limiting current to ±20mA absolute maximum. Within the specified common-mode range, input bias current remains ≤10pA; outside it, bias current rises exponentially due to forward conduction. For sustained overvoltage, external series resistors are recommended to limit current below 20mA. This behavior is explicitly characterized and guaranteed for the MAX995EUD+.
How does the internal hysteresis of the MAX995EUD+ affect threshold accuracy, and can it be disabled?
The MAX995EUD+ features fixed ±2.5mV internal hysteresis centered on the input offset voltage, improving noise immunity without external components. It cannot be disabled - the hysteresis is inherent to the input stage design. When precision thresholding is required, treat the effective trip point as VOS ± VHYST. For example, with VOS = +0.3mV, rising-edge threshold is +2.8mV and falling-edge is –2.2mV relative to the reference. This behavior is consistent across all four comparators in the MAX995EUD+ and is fully characterized over temperature.
Is the MAX995EUD+ pin-compatible with other devices in the MAX99x family, such as the MAX996EUD+?
No, the MAX995EUD+ is not pin-compatible with the MAX996EUD+. Both use the same 14-pin TSSOP package, but the MAX996EUD+ has open-drain outputs requiring external pull-ups, whereas the MAX995EUD+ has push-pull outputs. Pin functions differ: MAX996EUD+ Pins 1, 8, 11, and 14 are open-drain outputs (requiring pull-up), while MAX995EUD+ Pins 1, 8, 11, and 14 are push-pull outputs (no pull-up needed). Swapping them without circuit modification will cause functional failure. Always verify pin mapping using Maxim's official Pin Description table for each part number.
MAX995EUD+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 14-TSSOP (0.173", 4.40mm 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-TSSOP
MAX995EUD+ FAQ
1.How can I place an order for MAX995EUD+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX995EUD+ 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 MAX995EUD+ reliable?
The price and inventory of MAX995EUD+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX995EUD+ is usually 5 days.
3.What payment methods are accepted for MAX995EUD+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX995EUD+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX995EUD+?
MAX995EUD+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX995EUD+ 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 MAX995EUD+?
For technical support, including MAX995EUD+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX995EUD+ requirements.
6.How does Aetrix verify that MAX995EUD+ is sourced from the original manufacturer or authorized distributors?
All MAX995EUD+ 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 MAX995EUD+ meets industry standards.
7.What is the process for return or replacement of MAX995EUD+?
All MAX995EUD+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX995EUD+, 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 MAX995EUD+ part is unused and in its original packaging.
Return procedure for MAX995EUD+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX995EUD+ Tags
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LM2903DR
Texas Instruments
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LM339DR
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LM339PWR
Texas Instruments
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LM393DT
STMicroelectronics
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LM2901PWR
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LM2903DT
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LM393DR
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LM239DR
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LM339APWR
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LM2903P
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LM393ADR
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NCX2200GMAZ
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