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Analog Devices Inc./Maxim Integrated MAX976EUA-T
- Part No.:
- MAX976EUA-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX976EUA-T.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:1,928
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Product details
Overview
MAX976EUA-T from Maxim Integrated is a dual, high-speed, low-power comparator optimized for +3V/+5V single-supply operation in space-constrained applications. It delivers 20ns propagation delay, 225µA supply current per comparator, rail-to-rail output drive, and ground-sensing inputs (–0.2V to VCC – 1.2V), enabling direct interface with CMOS/TTL logic in battery-powered threshold detection circuits.
For engineers reviewing the MAX976EUA-T datasheet, MAX976EUA-T pinout, MAX976EUA-T application, or MAX976EUA-T equivalent, key selection criteria include shutdown capability (not supported on MAX976), input common-mode range extension below ground, propagation-delay matching between channels (±1ns), and µMAX®-8 package compatibility with tight PCB layout constraints.
Technical Context
The MAX976EUA-T implements a CMOS-input, push-pull output architecture with internal hysteresis (1.5mV typical) to suppress noise-induced oscillation during slow input transitions. Its input stage supports common-mode voltages down to –0.2V, allowing direct sensing of signals referenced to system ground or negative rails.
Each comparator operates independently with matched propagation delay (ΔtPD ≤ 1ns) and skew (tSKEW ≤ 2ns), supporting precise timing-critical functions such as window detection and digital line reception without external calibration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.7V to +5.5V - enables direct use in 3V and 5V systems without level-shifting. |
| Propagation Delay | 20ns (typ.) at 50mV overdrive - supports >25MHz signal discrimination in high-speed receivers. |
| Supply Current per Comparator | 225µA (typ.) - allows dual-channel operation under 500µA total, critical for battery longevity. |
| Input Common-Mode Range | –0.2V to (VCC – 1.2V) - permits ground-referenced sensor inputs without clamping diodes. |
| Rail-to-Rail Output | VOH ≥ VCC – 0.4V, VOL ≤ 0.4V at 2mA - drives CMOS/TTL loads directly without pull-up resistors. |
| Input Offset Voltage | ±2mV (max) - ensures accurate trip-point stability in precision threshold detectors. |
| Common-Mode Rejection Ratio | 95dB (min) - maintains accuracy despite supply ripple or shared-ground noise. |
Pinout & Package
MAX976EUA-T is housed in an 8-pin µMAX® package (pin-compatible with SO-8 but 50% smaller footprint), specified for –40°C to +85°C operation. The package uses lead(Pb)-free/RoHS-compliant construction with exposed pad for thermal enhancement.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | INB– | Inverting input for comparator B - accepts signals down to –0.2V, enabling ground-sensing applications. |
| 2 | INA– | Inverting input for comparator A - electrically identical to Pin 1; supports differential or single-ended configurations. |
| 3 | INA+ | Noninverting input for comparator A - used with Pin 2 to form primary voltage window or threshold detector. |
| 4 | GND | Analog/digital ground reference - must connect to low-impedance ground plane to maintain noise immunity. |
| 5 | VCC | Positive supply input - requires local 0.1µF ceramic decoupling capacitor placed within 2mm of this pin. |
| 6 | OUTA | Push-pull output for comparator A - drives high/low actively; no external pull-up needed for TTL/CMOS interfacing. |
| 7 | OUTB | Push-pull output for comparator B - independent of OUTA; supports dual-threshold or redundant monitoring schemes. |
| 8 | INB+ | Noninverting input for comparator B - completes second comparator channel; enables independent signal conditioning paths. |
Key Features
| Feature | Design Value |
|---|---|
| Single-Supply Operation | Operates from +2.7V to +5.5V - eliminates need for dual-rail supplies in portable instrumentation. |
| Internal Hysteresis | 1.5mV typical input-referred hysteresis - prevents chatter on noisy or slowly varying inputs without external components. |
| Rail-to-Rail Outputs | Active push-pull structure - delivers full logic swing to downstream gates without external biasing or level translation. |
| Short-Circuit Tolerance | Continuous fault tolerance to either rail - protects device during board-level ESD events or wiring errors. |
| Matched Propagation Delay | ΔtPD ≤ 1ns between channels - enables synchronous dual-comparator functions like window detection with <1ns timing skew. |
Applications
| Battery-Powered Threshold Detector | IR Receiver Front-End |
|---|---|
Use Scenario: Monitoring battery voltage against undervoltage/overvoltage thresholds in handheld medical devices. IC Role / Device Role / Timing Role: Dual comparator configured as window detector - INA+/INA– and INB+/INB– set upper/lower limits; OUTA/OUTB generate discrete fault flags. Use Value: 20ns response time ensures rapid shutdown before Li-ion cell damage; 225µA/channel current extends runtime beyond 12 months on coin-cell power. |
Use Scenario: Converting modulated infrared photodiode current into clean digital pulses for remote control decoding. IC Role / Device Role / Timing Role: High-speed comparator amplifying small AC-coupled IR signal - INB+ biased by voltage divider, INB– connected to photodiode node. Use Value: Ground-sensing inputs accept sub-zero photodiode swing; rail-to-rail output directly clocks microcontroller GPIO with no signal conditioning. |
| Digital Line Receiver | 3V Industrial Sensor Interface |
Use Scenario: Recovering degraded RS-232 or proprietary serial data lines in factory automation equipment. IC Role / Device Role / Timing Role: Comparator acting as line receiver - INA+ receives attenuated signal, INA– sets hysteresis-biased reference; OUTA provides regenerated logic stream. Use Value: 95dB CMRR rejects common-mode noise on long cables; 20ns delay preserves >25Mbps data integrity without jitter accumulation. |
Use Scenario: Interfacing analog temperature or pressure sensors to 3V microcontrollers in smart building controllers. IC Role / Device Role / Timing Role: Precision threshold detector - INA+ tied to sensor output, INA– set to fixed reference; OUTA triggers alarm when limit exceeded. Use Value: ±2mV offset voltage ensures trip-point accuracy within ±0.5°C for NTC thermistors; –0.2V input range accommodates sensor bias below ground. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual high-speed comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM393DR | Slower (1.3µs propagation delay), higher supply current (500µA), no ground-sensing inputs (0V to VCC – 1.5V), open-collector outputs requiring pull-up. | Acceptable for low-speed industrial controls where timing and rail-to-rail drive are noncritical. | Select LM393DR only if cost is primary constraint and 20ns timing, ground-sensing, or active output drive are unnecessary. |
| TLV3502IDR | Faster (4.5ns), lower supply current (55µA), same ground-sensing range, rail-to-rail output, but no internal hysteresis and different pinout (SO-8). | Better for ultra-high-speed sampling or ultra-low-power designs where external hysteresis can be added. | Choose TLV3502IDR when propagation delay <5ns is required and board layout allows redesign for hysteresis network. |
Compared with LM393DR and TLV3502IDR, the MAX976EUA-T uniquely balances 20ns speed, 225µA efficiency, ground-sensing capability, and built-in hysteresis in a space-saving µMAX package-making it optimal for compact, battery-sensitive, noise-prone applications where timing and input flexibility are jointly critical.
Availability
MAX976EUA-T is available at Aetrix Electronics and suitable for battery-powered systems, IR receivers, and 3V industrial sensor interfaces requiring stable component supply across extended production lifecycles.
Supply support for MAX976EUA-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) is a semiconductor company specializing in precision analog, mixed-signal, and high-performance power management ICs for industrial, automotive, and communications markets.
The MAX976EUA-T belongs to Maxim's high-speed comparator product line, designed specifically for single-supply, low-power, space-constrained applications demanding fast response, ground-referenced sensing, and robust noise immunity.
FAQ
What is the operating temperature range for the MAX976EUA-T?
The MAX976EUA-T is fully specified over the industrial temperature range of –40°C to +85°C. All electrical parameters-including propagation delay, supply current, and input offset voltage-are guaranteed across this range, making MAX976EUA-T suitable for deployment in harsh environments such as factory floors or outdoor electronics enclosures.
Does the MAX976EUA-T support shutdown mode?
No, the MAX976EUA-T does not include a shutdown feature. Shutdown functionality is exclusive to the MAX998 (SOT23-6) variant, which uses the SHDN pin to reduce supply current to 1nA. The MAX976EUA-T remains active whenever powered; for low-power standby, system-level power gating of VCC is required.
Can the MAX976EUA-T inputs safely operate below ground?
Yes, the MAX976EUA-T inputs support a common-mode voltage range extending to –0.2V relative to GND. This ground-sensing capability allows direct connection to transducers or sensors whose output swings slightly negative, eliminating the need for level-shifting circuitry and reducing BOM count in precision measurement systems using MAX976EUA-T.
What package type is used for the MAX976EUA-T?
The MAX976EUA-T is supplied in an 8-pin µMAX® package (package code U8+1), measuring 3mm × 3mm with 0.65mm pitch. This RoHS-compliant, lead(Pb)-free package offers 50% board area reduction versus standard SO-8 while maintaining thermal performance via an exposed pad, ideal for dense PCB layouts where MAX976EUA-T integration is space-constrained.
Is the MAX976EUA-T pin-compatible with other comparators in the MAX976/MAX978/MAX998 family?
The MAX976EUA-T (µMAX-8) shares functional pin assignments with the MAX976ESA+ (SO-8) but is not mechanically pin-compatible with the MAX998EUT+T (SOT23-6) or MAX978EEE+ (QSOP-16). While all three share identical comparator core specifications, their pinouts differ significantly-especially regarding supply, ground, and output routing-so PCB layout must be tailored to the specific package used for MAX976EUA-T.
MAX976EUA-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- Push-Pull, Rail-to-Rail
- Voltage - Supply, Single/Dual (±):
- 2.7V ~ 5.5V
- :
- 2mV @ 5V
- Voltage - Input Offset (Max):
- 0.075µA @ 5.5V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 650µA
- Current - Quiescent (Max):
- 95dB CMRR, 100dB PSRR
- CMRR, PSRR (Typ):
- 28ns
- Propagation Delay (Max):
- 5mV
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-uMAX/uSOP
MAX976EUA-T FAQ
1.How can I place an order for MAX976EUA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX976EUA-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 MAX976EUA-T reliable?
The price and inventory of MAX976EUA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX976EUA-T is usually 5 days.
3.What payment methods are accepted for MAX976EUA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX976EUA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX976EUA-T?
MAX976EUA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX976EUA-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 MAX976EUA-T?
For technical support, including MAX976EUA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX976EUA-T requirements.
6.How does Aetrix verify that MAX976EUA-T is sourced from the original manufacturer or authorized distributors?
All MAX976EUA-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 MAX976EUA-T meets industry standards.
7.What is the process for return or replacement of MAX976EUA-T?
All MAX976EUA-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX976EUA-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 MAX976EUA-T part is unused and in its original packaging.
Return procedure for MAX976EUA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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