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Analog Devices Inc./Maxim Integrated MAX9119EXK+T
- Part No.:
- MAX9119EXK+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
MAX9119EXK+T.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:7,306
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Product details
Overview
MAX9119EXK+T from Analog Devices is a nanopower, single-channel comparator in SC70-5 package with push-pull output, no internal reference, 350nA supply current at 1.6V, Beyond-the-Rails™ input range (VEE − 0.2V to VCC + 0.2V), and rail-to-rail output swing up to ±5mA - designed for ultra-low-power 2-cell battery monitoring and threshold detection.
For engineers reviewing the MAX9119EXK+T datasheet, MAX9119EXK+T pinout, MAX9119EXK+T application, or MAX9119EXK+T equivalent, this page delivers verified technical context, real-world design meaning for key specs, validated pin functions, confirmed alternatives, and supply-chain readiness for battery-powered embedded systems.
Technical Context
The MAX9119EXK+T employs a break-before-make push-pull output stage that eliminates crowbar current and suppresses supply glitches during switching - critical for stable operation in low-noise, low-impedance power domains. Its input stage supports common-mode voltages beyond supply rails by ±200mV, enabling direct sensing at ground or supply lines without level-shifting.
Internal hysteresis of 4mV ensures clean, oscillation-free switching with slow-moving or noisy inputs, while propagation delays (tPD+ = 15µs at 1.6V, tPD− = 16µs) and fast rise/fall times (1.6µs/0.2µs @ CL = 15pF) support reliable timing-critical detection in telemetry and medical instrumentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 350nA at VCC = 1.6V - enables >5 million hours of operation on a 2000mAh alkaline AA cell pair. |
| Input Voltage Range | VEE − 0.2V to VCC + 0.2V - allows direct connection to battery terminals or sensor outputs below ground or above VCC. |
| Output Drive | ±5mA rail-to-rail push-pull - drives logic inputs, LEDs, or small MOSFET gates without external buffers. |
| Propagation Delay | tPD+ = 15µs (1.6V), tPD− = 16µs - supports sub-50kHz detection bandwidth with deterministic timing. |
| Input Offset Voltage | 1–5mV (typ), ≤10mV (max) - sets minimum detectable voltage differential in precision threshold applications. |
| Hysteresis | 4mV (internal) - prevents chatter on slow-rising signals like thermistor or battery voltage ramps. |
| Operating Voltage | +1.6V to +5.5V - fully compatible with 2-cell alkaline (1.8–3.0V), NiMH (1.8–2.4V), or Li-ion (2.7–3.5V) battery stacks. |
Pinout & Package
MAX9119EXK+T is housed in a 5-pin SC70-5 package (package code X5-1), measuring 2.0mm × 1.25mm × 0.9mm, with gull-wing leads and RoHS-compliant lead-free finish (+ suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT | CMOS push-pull output - actively drives high/low; sinks and sources up to ±5mA; no external pullup required. |
| 2 | VEE | Negative supply terminal - connects to system ground or negative rail; supports true ground-referenced sensing. |
| 3 | IN+ | Noninverting input - accepts signals up to VCC + 0.2V; used for threshold comparison against IN−. |
| 4 | IN− | Inverting input - referenced to VEE or external voltage; enables standard comparator configuration with hysteresis. |
| 5 | VCC | Positive supply input - operates down to +1.6V; powers internal circuitry and output stage. |
Key Features
| Feature | Design Value |
|---|---|
| Beyond-the-Rails™ Input Range | Extends 200mV below VEE and above VCC - eliminates need for external level shifters in battery-voltage monitoring. |
| Crowbar-Current-Free Switching | Break-before-make output architecture - removes supply-current surges, reducing PCB decoupling requirements. |
| Ultra-Low 350nA Supply Current | Enables multi-year operation on coin cells or AA batteries - validated across −40°C to +85°C. |
| Internal 4mV Hysteresis | Prevents false triggering from noise or EMI without external resistors - simplifies BOM and layout. |
| Rail-to-Rail Push-Pull Output | Delivers full VEE-to-VCC swing into 5mA loads - interfaces directly with 1.8V/3.3V logic or analog control circuits. |
Applications
| 2-Cell Battery Monitoring | Ultra-Low-Power Telemetry |
|---|---|
Use Scenario: Monitoring voltage decay across two series alkaline or NiMH cells in remote sensors or asset trackers. IC Role / Device Role / Timing Role: Threshold detector comparing battery voltage against fixed or scaled reference to trigger low-battery alerts. Use Value: 350nA quiescent current extends operational life beyond 5 years on standard AA cells, per Analog Devices Table 1. | Use Scenario: Detecting wake-up events (e.g., motion, temperature crossing) in battery-powered IoT nodes transmitting infrequently. IC Role / Device Role / Timing Role: Low-power wake-up comparator enabling MCU sleep mode until threshold breach occurs. Use Value: Sub-µA supply current preserves battery capacity between transmissions; 15µs delay ensures timely response without excessive overhead. |
| Medical Instrument Sensing | Ground-Referenced Threshold Detection |
Use Scenario: Detecting physiological signal thresholds (e.g., ECG R-wave peak, pulse oximetry saturation drop) in portable monitors. IC Role / Device Role / Timing Role: Precision comparator with low offset and hysteresis for reliable event capture in noisy analog front-ends. Use Value: 1–5mV offset and 4mV hysteresis ensure repeatable trip points despite electrode drift or motion artifacts. | Use Scenario: Monitoring current-sense resistor voltage or thermistor output referenced directly to system ground. IC Role / Device Role / Timing Role: Ground-sensing comparator accepting inputs down to VEE − 0.2V without level translation. Use Value: Eliminates external op-amp or resistor divider, reducing component count and error sources in compact wearable designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nanopower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV3691IDCKR | 320nA supply current, 1.8V min operating voltage, open-drain output only - no push-pull option. | Requires external pullup; unsuitable for driving capacitive loads or sourcing current without additional circuitry. | Select when lowest possible current (<320nA) is prioritized and open-drain interface suffices. |
| MAX40002ANSR | 600nA supply current, includes 1.2V reference, push-pull output, same SC70-5 package. | Higher current draw; internal reference adds functionality but increases quiescent load - not drop-in for reference-less designs. | Select when integrated reference simplifies design and 600nA is acceptable for target battery life. |
Compared with TLV3691IDCKR and MAX40002ANSR, the MAX9119EXK+T uniquely balances ultra-low 350nA current, push-pull drive, and true 1.6V operation - making it optimal for battery voltage monitoring where sourcing capability and minimal supply voltage are non-negotiable.
Availability
MAX9119EXK+T is available at Aetrix Electronics and suitable for 2-cell battery monitoring, ultra-low-power telemetry, medical instrument sensing, and ground-referenced threshold detection requiring stable component supply across industrial and medical OEM programs.
Supply support for MAX9119EXK+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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The MAX9117–MAX9120 family was engineered specifically for nanopower, rail-extending comparators in space-constrained battery-powered systems - emphasizing supply efficiency, input flexibility, and glitch-free switching.
FAQ
What is the minimum operating voltage for MAX9119EXK+T?
The MAX9119EXK+T is guaranteed to operate down to +1.6V over the full −40°C to +85°C temperature range, as specified in the Absolute Maximum Ratings and Electrical Characteristics tables. This enables direct use with aging 2-cell alkaline or NiMH batteries whose voltage drops to 1.8V under load and lower at end-of-life.
Does MAX9119EXK+T include an internal voltage reference?
No, the MAX9119EXK+T does not include an internal voltage reference. It belongs to the reference-less variant of the MAX9117–MAX9120 family (per Ordering Information table). The MAX9117/MAX9118 variants integrate a 1.252V ±1.75% reference; MAX9119EXK+T relies on external reference or resistor-divider networks for threshold setting.
What is the output configuration of MAX9119EXK+T?
The MAX9119EXK+T features a CMOS push-pull output stage capable of both sourcing and sinking up to ±5mA. Unlike open-drain variants (e.g., MAX9120), it does not require an external pullup resistor and delivers rail-to-rail logic-compatible output swing from VEE to VCC.
Can MAX9119EXK+T accept input voltages below ground or above VCC?
Yes, the MAX9119EXK+T supports a Beyond-the-Rails™ input common-mode range from VEE − 0.2V to VCC + 0.2V. This allows direct connection to signals such as battery terminals, current-sense shunts, or sensor outputs that exceed supply rails - eliminating level-shifters in many monitoring applications.
What is the typical supply current of MAX9119EXK+T at 1.6V and 25°C?
The typical supply current of MAX9119EXK+T is 350nA at VCC = 1.6V and TA = +25°C, as stated in the Electrical Characteristics table for MAX9119/MAX9120. This value rises to 800nA maximum over temperature and supply voltage extremes, ensuring predictable ultra-low-power behavior.
MAX9119EXK+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Series:
- Beyond-the-Rails™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- CMOS, Push-Pull, Rail-to-Rail
- Voltage - Supply, Single/Dual (±):
- 1.6V ~ 5.5V
- :
- 5mV @ 5V
- Voltage - Input Offset (Max):
- 0.001µA @ 5V
- Current - Input Bias (Max):
- 50mA
- Current - Output (Typ):
- 1.2µA
- Current - Quiescent (Max):
- 66.02dB CMRR, 80dB PSRR
- CMRR, PSRR (Typ):
- 40µs
- Propagation Delay (Max):
- 4mV
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- SC-70-5
MAX9119EXK+T FAQ
1.How can I place an order for MAX9119EXK+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9119EXK+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 MAX9119EXK+T reliable?
The price and inventory of MAX9119EXK+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9119EXK+T is usually 5 days.
3.What payment methods are accepted for MAX9119EXK+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9119EXK+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9119EXK+T?
MAX9119EXK+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9119EXK+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 MAX9119EXK+T?
For technical support, including MAX9119EXK+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9119EXK+T requirements.
6.How does Aetrix verify that MAX9119EXK+T is sourced from the original manufacturer or authorized distributors?
All MAX9119EXK+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 MAX9119EXK+T meets industry standards.
7.What is the process for return or replacement of MAX9119EXK+T?
All MAX9119EXK+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX9119EXK+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 MAX9119EXK+T part is unused and in its original packaging.
Return procedure for MAX9119EXK+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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