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NXP Semiconductors NCX2222GUX
- Part No.:
- NCX2222GUX
- Manufacturer:
- NXP Semiconductors
- Category:
- Comparators
- Package:
- 8-XFDFN Exposed Pad
- Datasheet:
-
NCX2222GUX.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,778
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Product details
Overview
NCX2222GUX from NXP Semiconductors is a dual, low-voltage, low-power comparator with open-drain outputs, designed for rail-to-rail input/output operation across 1.3 V to 5.5 V supply. It delivers 5 µA per comparator supply current, 0.8 µs typical propagation delay at 20 mV overdrive, and internal 9 mV hysteresis-enabling precise threshold detection in battery-powered portable electronics.
For engineers reviewing the NCX2222GUX datasheet, NCX2222GUX pinout, NCX2222GUX application, or NCX2222GUX equivalent, key selection considerations include its guaranteed 1.3 V operation, ESD robustness (HBM >1500 V), open-drain output compatibility with mixed-voltage logic translation, and thermal-enhanced HXSON8 package for space-constrained PCB layouts.
Technical Context
The NCX2222GUX integrates two independent comparators with N-channel open-drain output stages, each sinking up to 5 mA while maintaining rail-to-rail common-mode input range extending 0.1 V beyond VEE and VCC. Its internal hysteresis (6–13 mV) eliminates noise-induced output oscillation without external components.
It operates functionally from 1.3 V to 5.5 V, with static characteristics specified across −40 °C to +85 °C and dynamic performance validated at 20 mV input overdrive into 15 pF load. Input bias current is ultra-low at 1.0 pA, and offset voltage is tightly controlled to ±30 mV over temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.3 V to 5.5 V functional operation-supports single-cell Li-ion (2.7–4.2 V), 3.0 V, and 5.0 V systems without level-shifting. |
| Supply Current per Comparator | 5.0 µA typical-enables multi-year battery life in always-on sensor monitoring circuits. |
| Propagation Delay | 0.8 µs typical at 20 mV overdrive-suitable for fast-response zero-crossing detection and window comparators. |
| Input Offset Voltage | ±30 mV max over −40 °C to +85 °C-ensures reliable threshold accuracy in industrial ambient conditions. |
| Hysteresis Voltage | 6–13 mV typical-provides built-in noise immunity for clean switching in noisy environments like motor control feedback. |
| ESD Robustness | HBM >1500 V, CDM >1000 V-reduces need for external protection in handheld device front-ends. |
| Output Configuration | Open-drain N-channel-allows wired-OR logic, flexible pull-up voltage selection (e.g., 1.8 V/3.3 V/5 V), and level translation. |
Pinout & Package
NCX2222GUX is packaged in HXSON8 (SOT972-2): plastic, thermal-enhanced extremely thin small outline package; no leads; 8 terminals; body dimensions 1.35 mm × 1.7 mm × 0.5 mm; pin 1 indicator located on lower-left corner below marking code.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT1 | Comparator 1 output | Open-drain N-channel output-requires external pull-up; sinks up to 5 mA to VEE. |
| IN1− | Comparator 1 inverting input | Differential input referenced to IN1+; supports rail-to-rail common-mode range. |
| IN1+ | Comparator 1 non-inverting input | Differential input referenced to IN1−; enables configurable threshold detection. |
| VEE | Negative supply / ground reference | Typically connected to system ground; substrate pad must remain floating or tied to VEE. |
| IN2+ | Comparator 2 non-inverting input | Independent input for second comparator; identical electrical behavior to IN1+. |
| IN2− | Comparator 2 inverting input | Independent input for second comparator; identical electrical behavior to IN1−. |
| OUT2 | Comparator 2 output | Open-drain N-channel output-electrically isolated from OUT1; supports independent pull-up networks. |
| VCC | Positive supply | Single positive supply input (1.3–5.5 V); powers both comparators and internal circuitry. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input/output operation | Enables full-supply-range signal monitoring and direct interface with low-voltage MCUs without external biasing. |
| No phase inversion with overdriven inputs | Prevents erroneous output transitions when input exceeds supply rails-critical for analog front-end reliability. |
| Internal hysteresis (6–13 mV) | Eliminates need for external positive feedback resistors, reducing BOM count and layout area in threshold-detection designs. |
| Ultra-low input bias current (1.0 pA) | Minimizes loading error on high-impedance sources such as thermistors, photodiodes, or RC timing networks. |
| Low-power consumption (5 µA/comparator) | Supports energy harvesting and coin-cell applications where quiescent current directly impacts operational lifetime. |
Applications
| Cellular Telephone Power Management | Alarm System Threshold Detection |
|---|---|
Use Scenario: Monitoring battery voltage and charging status in GSM/UMTS handsets with single-cell Li-ion packs. IC Role / Device Role / Timing Role: Dual comparator performs low-battery warning (OUT1) and charge-complete detection (OUT2) using resistor-divider thresholds. Use Value: 1.3 V minimum operating voltage ensures functionality down to deeply discharged cells; open-drain outputs interface directly with 1.8 V baseband processor GPIOs. |
Use Scenario: Detecting intrusion via PIR sensor output crossing preset thresholds in residential security panels. IC Role / Device Role / Timing Role: One comparator monitors sensor baseline drift; the other triggers alarm when motion signal exceeds hysteresis-band threshold. Use Value: Internal hysteresis prevents false alarms from EMI or supply ripple; 5 µA quiescent current extends standby battery life to >5 years. |
| Personal Digital Assistant (PDA) Keypad Scan | Industrial Sensor Interface |
Use Scenario: Scanning resistive touch overlay or mechanical keypad matrix in legacy PDAs with tight power budgets. IC Role / Device Role / Timing Role: Comparators detect row/column voltage drops during keypress, generating interrupt signals to ARM7-based host. Use Value: Rail-to-rail inputs accept varying scan voltages; 0.8 µs propagation delay enables sub-millisecond response time across 16-key matrices. |
Use Scenario: Converting analog outputs from pressure, temperature, or current-loop sensors into digital alerts in factory automation nodes. IC Role / Device Role / Timing Role: Configured as window comparator to flag out-of-spec sensor readings (e.g., 4–20 mA loop fault detection). Use Value: Wide 1.3–5.5 V supply range allows direct use with 3.3 V microcontrollers and 24 V industrial supplies via local LDO; ESD rating protects against field-installation transients. |
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 |
|---|---|---|---|
| TLV3702IDR | Higher supply current (12 µA/comparator); no internal hysteresis; SOIC-8 only | Requires external hysteresis resistors; less suitable for ultra-low-power designs | Choose TLV3702IDR only if SOIC-8 footprint is mandatory and higher quiescent current is acceptable. |
| MAX9062ASA+ | Wider supply range (1.6–5.5 V); 1.5 µs propagation delay; no rail-to-rail inputs | Cannot monitor signals near VEE or VCC rails; slower response limits high-speed edge detection | Select MAX9062ASA+ only when input common-mode range requirements are relaxed and thermal performance is secondary. |
Compared with TLV3702IDR and MAX9062ASA+, the NCX2222GUX uniquely combines 1.3 V operation, internal hysteresis, rail-to-rail inputs, and HXSON8 thermal efficiency-making it optimal for miniaturized, battery-critical, noise-prone embedded sensing nodes.
Availability
NCX2222GUX is available at Aetrix Electronics and suitable for cellular telephones, alarm and security systems, and personal digital assistants requiring stable component supply with long-term industrial temperature support (−40 °C to +85 °C).
Supply support for NCX2222GUX 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 company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and consumer markets.
The NCX2222GUX belongs to NXP's ultra-low-power analog comparator family, engineered specifically for energy-constrained portable and IoT edge devices demanding precision threshold detection at minimal supply voltage.
FAQ
What is the minimum operating voltage for the NCX2222GUX?
The NCX2222GUX is guaranteed to operate down to 1.3 V, making it suitable for single-cell lithium-ion or alkaline battery applications where supply voltage drops significantly under load. This specification is validated across the full −40 °C to +85 °C temperature range and confirmed in Table 5 of the official NXP datasheet Rev. 1.
Does the NCX2222GUX require external hysteresis components?
No, the NCX2222GUX includes internal hysteresis of 6–13 mV, eliminating the need for external positive feedback resistors. This feature is explicitly documented in Table 6 (Static Characteristics) and Section 13.1 (Operating Description) of the datasheet, improving design simplicity and board area efficiency.
What package type is used for the NCX2222GUX?
The NCX2222GUX uses the HXSON8 package (SOT972-2): a thermal-enhanced, leadless, extremely thin small outline package measuring 1.35 mm × 1.7 mm × 0.5 mm with 8 terminals. Pin 1 is marked in the lower-left corner, as shown in Figure 2 and Package Outline SOT972-2 (Figure 17).
Can the NCX2222GUX be used as a logic level translator?
Yes-the NCX2222GUX's open-drain outputs and rail-to-rail inputs enable bidirectional logic level translation. As demonstrated in Figure 15 of the datasheet, it converts 3 V logic signals to 5 V logic by using separate pull-up resistors on each output, preserving signal integrity without active buffering.
What is the maximum sink current capability of each NCX2222GUX output?
Each open-drain output of the NCX2222GUX can sink up to 5 mA while maintaining VOL ≤ 0.3 V at VCC = 5.5 V, as specified in Table 6 (Static Characteristics). This allows direct driving of LEDs, MOSFET gates, or microcontroller interrupt inputs without additional driver stages.
NCX2222GUX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 8-XFDFN Exposed Pad
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- Open-Drain
- Voltage - Supply, Single/Dual (±):
- 1.3V ~ 5.5V
- :
- 30mV @ 5.5V
- Voltage - Input Offset (Max):
- 1pA
- Current - Input Bias (Max):
- 68mA
- Current - Output (Typ):
- 5µA
- Current - Quiescent (Max):
- 70dB CMRR, 80dB PSRR
- CMRR, PSRR (Typ):
- 0.8µs
- Propagation Delay (Max):
- 9mV
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- DFN1714-8
NCX2222GUX FAQ
1.How can I place an order for NCX2222GUX through Aetrix?
Please submit a Request for Quotation (RFQ) for NCX2222GUX 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 NCX2222GUX reliable?
The price and inventory of NCX2222GUX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCX2222GUX is usually 5 days.
3.What payment methods are accepted for NCX2222GUX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCX2222GUX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCX2222GUX?
NCX2222GUX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCX2222GUX 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 NCX2222GUX?
For technical support, including NCX2222GUX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCX2222GUX requirements.
6.How does Aetrix verify that NCX2222GUX is sourced from the original manufacturer or authorized distributors?
All NCX2222GUX 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 NCX2222GUX meets industry standards.
7.What is the process for return or replacement of NCX2222GUX?
All NCX2222GUX units undergo pre-shipment inspection (PSI). If there is an issue with NCX2222GUX, 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 NCX2222GUX part is unused and in its original packaging.
Return procedure for NCX2222GUX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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