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NXP Semiconductors NCX2220GM,125
- Part No.:
- NCX2220GM,125
- Manufacturer:
- NXP Semiconductors
- Category:
- Comparators
- Package:
- 8-XFQFN Exposed Pad
- Datasheet:
-
NCX2220GM,125.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8XQFNU
- Quantity:
- Payment:
- Shipping:
Inventory:12,825
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Product details
Overview
NCX2220GM,125 from NXP Semiconductors is a dual low-voltage, rail-to-rail input/output comparator optimized for battery-powered and ultra-low-power systems. It delivers 5 μA per comparator supply current, operates from 1.3 V to 5.5 V, and achieves 0.8 μs typical propagation delay with 20 mV overdrive - enabling precise voltage monitoring in portable medical sensors and wearable power management circuits.
For engineers reviewing the NCX2220GM,125 datasheet, NCX2220GM,125 pinout, NCX2220GM,125 application, or NCX2220GM,125 equivalent, key selection criteria include guaranteed 1.3 V operation, internal 9 mV hysteresis, −40 °C to +85 °C temperature range, rail-to-rail I/O swing, and XQFN8 package compatibility with high-density PCB layouts.
Technical Context
The NCX2220GM,125 integrates two independent comparators with complementary P/N-channel output stages, enabling rail-to-rail output swing up to ±5 mA load while minimizing shoot-through current. Its input stage supports common-mode voltage from VEE to VCC, with no phase inversion beyond rails.
Internal hysteresis (typ. 9 mV) provides noise immunity without external components, and ESD protection exceeds 2000 V HBM and 1000 V CDM - critical for handheld device interfaces. Propagation delay remains stable across 1.3–5.5 V supply and −40–+85 °C ambient conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.3 V to 5.5 V - enables direct use in single-cell Li-ion (2.7–4.2 V), coin-cell (1.5 V), and 3.3/5.0 V logic systems without level shifting. |
| Supply Current per Comparator | 5.0 μA typical - allows continuous operation for years on a CR2032 battery in always-on sensor wake-up circuits. |
| Propagation Delay | 0.8 μs typical at 20 mV overdrive - supports fast response in overvoltage lockout and battery charge termination detection. |
| Hysteresis Voltage | 9 mV typical - suppresses chatter in noisy environments like motor control feedback or industrial sensor inputs. |
| Input Offset Voltage | ±30 mV max over temperature - ensures reliable threshold detection in precision voltage window monitors. |
| Output Drive Capability | Rail-to-rail swing with ±5 mA drive - directly interfaces with microcontroller GPIOs or drives small LEDs without external buffers. |
| ESD Protection | HBM >2000 V, CDM >1000 V - meets IEC 61000-4-2 Level 3 requirements for handheld consumer electronics. |
| Operating Temperature | −40 °C to +85 °C - qualified for industrial-grade embedded applications including smart metering and IoT edge nodes. |
Pinout & Package
XQFN8 package (SOT902-2): 1.6 mm × 1.6 mm × 0.5 mm body, 8-terminal no-lead construction with exposed thermal pad (non-solderable, floating or connected to VEE).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Open-drain/push-pull output of comparator 1 - sinks or sources current to VEE/VCC depending on input state. |
| 2 | IN1− | Inverting input of comparator 1 - accepts rail-to-rail analog signals for threshold comparison. |
| 3 | IN1+ | Non-inverting input of comparator 1 - used with IN1− to configure window detectors or zero-crossing circuits. |
| 4 | VEE | Negative supply terminal - typically ground; substrate connection point for thermal pad. |
| 5 | IN2+ | Non-inverting input of comparator 2 - enables dual independent comparisons (e.g., under/over-voltage detection). |
| 6 | IN2− | Inverting input of comparator 2 - paired with IN2+ for second threshold reference. |
| 7 | OUT2 | Output of comparator 2 - electrically isolated from OUT1; supports asynchronous event signaling. |
| 8 | VCC | Positive supply terminal - powers both comparators; decoupling capacitor required within 1 mm. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full-supply-range signal detection and direct interfacing with mixed-voltage MCUs without external level shifters. |
| Internal hysteresis (9 mV typ.) | Eliminates need for external positive feedback resistors in noisy environments, reducing BOM count and layout area. |
| No phase inversion with overdriven inputs | Prevents false triggering when input exceeds supply rails - essential for robust operation in transient-prone power rails. |
| Ultra-low 5 μA/comparator supply current | Supports multi-year battery life in always-on applications such as smoke detector supervision or remote sensor wake-up. |
| 1.3 V minimum operating voltage | Permits operation down to near-dead battery voltage, extending usable capacity in single-cell LiFePO₄ or alkaline systems. |
| Thermally enhanced XQFN8 package | 1.6 × 1.6 mm footprint with thermal pad improves power dissipation margin in compact wearables and space-constrained modules. |
Applications
| Battery Voltage Monitor | Portable Medical Sensor |
|---|---|
|
Use Scenario: Real-time monitoring of lithium coin-cell or alkaline battery voltage in hearing aids or glucose meters. IC Role / Device Role / Timing Role: Dual comparator detects low-battery warning (IN1+/IN1−) and end-of-life cutoff (IN2+/IN2−) thresholds independently. Use Value: 5 μA quiescent current extends battery life by >30% versus comparable comparators; 1.3 V operation captures final usable voltage before shutdown. |
Use Scenario: Analog front-end signal conditioning for ECG or pulse oximetry sensors in wearable patches. IC Role / Device Role / Timing Role: One comparator acts as zero-crossing detector for AC-coupled bio-signal amplification; the other enables motion-artifact-triggered sampling. Use Value: Rail-to-rail input accepts full-swing sensor outputs; internal hysteresis rejects EMG noise without external components. |
| Smart Home Security Sensor | Industrial IoT Node |
|
Use Scenario: Tamper detection and door/window contact sensing in battery-powered security hubs. IC Role / Device Role / Timing Role: Comparator converts mechanical switch closure into clean digital interrupt for MCU wake-up; hysteresis prevents bounce-induced false alarms. Use Value: 0.8 μs propagation delay ensures sub-millisecond response to intrusion events; HBM >2000 V withstands ESD during field installation. |
Use Scenario: Power rail supervision and fault flag generation in DIN-rail mounted condition monitoring gateways. IC Role / Device Role / Timing Role: Monitors 3.3 V logic rail and 24 V auxiliary supply simultaneously using dual channels; outputs drive optocouplers or status LEDs. Use Value: −40 °C to +85 °C rating ensures reliability in uncontrolled industrial enclosures; 5.5 V max VCC supports direct 5 V system integration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-voltage comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC372CDR | Higher 20 μA supply current; 3 V min supply; SOIC-8 only; no internal hysteresis. | Requires external hysteresis resistors; unsuitable for <1.8 V systems or ultra-low-power designs. | Choose TLC372CDR only if SOIC-8 footprint is mandatory and 1.3 V operation is not required. |
| MAX9062ASA+ | 1.8 V min supply; 1.5 μA supply current; rail-to-rail I/O; 125 ns propagation delay. | Faster response but cannot operate below 1.8 V; smaller hysteresis (3 mV); limited to −40 °C to +85 °C. | Select MAX9062ASA+ when nanosecond-speed detection is critical and supply voltage ≥1.8 V is guaranteed. |
Compared with TLC372CDR and MAX9062ASA+, the NCX2220GM,125 uniquely combines 1.3 V operation, 5 μA quiescent current, and integrated 9 mV hysteresis - making it the only option for long-life, single-cell-powered systems requiring robust noise immunity without external components.
Availability
NCX2220GM,125 is available at Aetrix Electronics and suitable for battery-powered medical devices, smart home security sensors, portable instrumentation, and industrial IoT nodes requiring stable component supply across extended product lifecycles.
Supply support for NCX2220GM,125 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
NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT markets, with core expertise in low-power analog and mixed-signal design.
The NCX2220GM,125 belongs to NXP's ultra-low-power analog comparator family, engineered specifically for energy-constrained portable and battery-operated applications where supply voltage headroom and quiescent current are critical constraints.
FAQ
What is the minimum supply voltage for reliable operation of the NCX2220GM,125?
The NCX2220GM,125 is fully specified and guaranteed to operate down to 1.3 V, with functional performance maintained across the entire −40 °C to +85 °C temperature range. At 1.3 V, parameters including propagation delay, offset voltage, and hysteresis remain within datasheet limits, enabling use in near-dead battery scenarios.
Does the NCX2220GM,125 require external hysteresis components?
No, the NCX2220GM,125 includes internal hysteresis of 9 mV typical, which eliminates the need for external positive feedback resistors in most noise-immune threshold detection applications. This simplifies design, reduces PCB area, and improves consistency across production units.
Can the NCX2220GM,125 drive an LED directly?
Yes, the NCX2220GM,125 can source or sink up to 5 mA per output while maintaining rail-to-rail swing, allowing direct LED driving with appropriate current-limiting resistors. At VCC = 3.0 V, VOL is 0.14 V max at 3 mA, providing sufficient headroom for red/green LEDs with ~2 V forward voltage.
What is the function of the exposed thermal pad on the NCX2220GM,125 XQFN8 package?
The exposed pad on the NCX2220GM,125 (SOT902-2) is electrically connected to the die substrate and has no required electrical connection. It may be left floating or tied to VEE for improved thermal performance, but must not be soldered to a grounded plane unless explicitly referenced to VEE in the PCB layout.
Is the NCX2220GM,125 suitable for automotive applications?
No, the NCX2220GM,125 is not automotive-qualified. It is rated for −40 °C to +85 °C industrial operation only and lacks AEC-Q100 qualification, automotive-grade ESD testing, or extended temperature validation. For automotive use, consult NXP's automotive-qualified comparator portfolio.
NCX2220GM,125 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 8-XFQFN Exposed Pad
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Last Time Buy
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- Rail-to-Rail
- Voltage - Supply, Single/Dual (±):
- 1.3V ~ 5.5V
- :
- 30mV @ 5.5V
- Voltage - Input Offset (Max):
- 1pA
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 5µA
- Current - Quiescent (Max):
- 70dB CMRR, 80dB PSRR
- CMRR, PSRR (Typ):
- 0.8µs
- Propagation Delay (Max):
- 20mV
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-XQFNU (1.6x1.6)
NCX2220GM,125 FAQ
1.How can I place an order for NCX2220GM,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for NCX2220GM,125 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 NCX2220GM,125 reliable?
The price and inventory of NCX2220GM,125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCX2220GM,125 is usually 5 days.
3.What payment methods are accepted for NCX2220GM,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCX2220GM,125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCX2220GM,125?
NCX2220GM,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCX2220GM,125 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 NCX2220GM,125?
For technical support, including NCX2220GM,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCX2220GM,125 requirements.
6.How does Aetrix verify that NCX2220GM,125 is sourced from the original manufacturer or authorized distributors?
All NCX2220GM,125 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 NCX2220GM,125 meets industry standards.
7.What is the process for return or replacement of NCX2220GM,125?
All NCX2220GM,125 units undergo pre-shipment inspection (PSI). If there is an issue with NCX2220GM,125, 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 NCX2220GM,125 part is unused and in its original packaging.
Return procedure for NCX2220GM,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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