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Analog Devices Inc. CMP04FSZ
- Part No.:
- CMP04FSZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Comparators
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
CMP04FSZ.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:310
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Product details
Overview
CMP04FSZ from Analog Devices is a quad low-power precision comparator IC with 1 mV max input offset voltage, 2 mA typical supply current, and open-collector TTL-compatible outputs. It operates from single supplies (5 V to 30 V) or dual supplies (±18 V), supports ground-referenced inputs, and delivers 125 V/mV typical gain-ideal for precision threshold detection in industrial sensor interfaces and power supply monitoring circuits.
For engineers reviewing the CMP04FSZ datasheet, CMP04FSZ pinout, CMP04FSZ application, or CMP04FSZ equivalent, key selection criteria include input offset voltage stability over temperature, output sink capability up to 16 mA, common-mode range extending to V+ − 1.5 V, and SOIC-14 packaging compatible with automated assembly.
Technical Context
The CMP04FSZ integrates four independent comparators sharing a common V+ and GND, each featuring rail-to-rail input capability down to ground and high CMRR (60–100 dB) for noise-immune sensing. Its open-collector outputs support wired-OR logic and direct interfacing with TTL, CMOS, ECL, and MOS loads without external pull-ups in some configurations.
Designed for minimal power impact, the device draws only 1.2–3.0 mA total supply current across full temperature (−40°C to +85°C) and supply voltage (5 V to 30 V) ranges, with saturation voltage as low as 250 mV at 4 mA sink-enabling efficient level translation in battery-powered and energy-sensitive systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 1 mV max - ensures ≤1 mV decision error at zero-differential input, critical for accurate voltage window detection. |
| Supply Current | 1.2–3.0 mA total - enables ultra-low-quiescent operation in always-on monitoring circuits. |
| Output Sink Current | 5–16 mA - drives standard TTL/CMOS loads directly; supports 4 mA logic-level switching with ≤250 mV drop. |
| Input Voltage Range | 0 V to V+ − 1.5 V - allows ground-referenced single-supply operation without level-shifting circuitry. |
| Large Signal Response Time | 300 ns - supports fast edge detection in digital timing, pulse-width measurement, and overvoltage latch applications. |
| Common-Mode Rejection Ratio | 60–100 dB - rejects noise coupled equally to both inputs, improving accuracy in noisy industrial environments. |
| Power Supply Rejection Ratio | 80–100 dB - maintains stable trip points despite supply ripple or variation in unregulated rails. |
Pinout & Package
Package: 14-lead SOIC_N (JEDEC MS-012-AB, R-14), 3.9 mm width, RoHS-compliant, surface-mountable with standard reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT 1 | Open-collector output of Comparator 1 - requires external pull-up for logic HIGH; sinks up to 16 mA. |
| 2 | IN 1– | Inverting input of Comparator 1 - accepts signals from 0 V to V+ − 1.5 V; high-impedance (≤200 nA bias). |
| 3 | IN 1+ | Non-inverting input of Comparator 1 - identical voltage range and impedance as IN 1–. |
| 4 | V+ | Positive supply pin - supports 5 V to 30 V single supply or +18 V in dual-supply mode (with V− = GND or negative rail). |
| 5 | IN 2– | Inverting input of Comparator 2 - electrically isolated from other comparators; shares V+ and GND reference. |
| 6 | IN 2+ | Non-inverting input of Comparator 2 - independent signal path; no crosstalk with Comp 1 or Comp 3/4. |
| 7 | GND | Ground reference for all comparators and substrate - must be low-impedance connection to minimize noise coupling. |
| 8 | IN 3+ | Non-inverting input of Comparator 3 - same electrical specs as IN 1+/IN 2+; supports multi-threshold monitoring. |
| 9 | IN 3– | Inverting input of Comparator 3 - used for differential or reference-based comparison in third channel. |
| 10 | OUT 4 | Open-collector output of Comparator 4 - functionally identical to OUT 1–3; supports wired-OR bus configuration. |
| 11 | IN 4– | Inverting input of Comparator 4 - completes quad set; enables simultaneous 4-channel voltage window or sequencing checks. |
| 12 | IN 4+ | Non-inverting input of Comparator 4 - fully independent; no shared internal nodes with other inputs. |
| 13 | OUT 2 | Open-collector output of Comparator 2 - routed separately; allows individual load control per comparator. |
| 14 | OUT 3 | Open-collector output of Comparator 3 - supports discrete LED drivers, relay controls, or interrupt generation per channel. |
Key Features
| Feature | Design Value |
|---|---|
| Quad independent comparators | Four fully isolated channels on one die - eliminates inter-channel delay skew and enables parallel threshold checking. |
| Ground-sensing input range | 0 V to V+ − 1.5 V - removes need for input biasing networks in single-supply sensor front-ends. |
| Low 250 mV saturation voltage | Enables reliable logic LOW assertion into 5 V TTL or 3.3 V CMOS with ≤4 mA load - reduces power loss and heat rise. |
| 125 V/mV typical voltage gain | Provides sharp transition edges and noise margin against false triggering in marginal signal conditions. |
| ESD-protected design | Rated for 4000 V HBM - improves robustness during board handling and system integration without added protection components. |
Applications
| Industrial Sensor Interface | Power Supply Sequencing Monitor |
|---|---|
Use Scenario: Detecting thermistor, RTD, or strain gauge output crossing preset thresholds in PLC analog input modules. IC Role / Device Role / Timing Role: Precision voltage comparator converting analog sensor levels into clean digital flags for microcontroller GPIO or FPGA interrupt inputs. Use Value: 1 mV offset and 60–100 dB CMRR ensure accurate trip points despite sensor lead resistance and field noise. | Use Scenario: Verifying correct ramp-up order and voltage stability of multiple DC rails (e.g., 12 V, 5 V, 3.3 V, 1.8 V) in telecom or server power systems. IC Role / Device Role / Timing Role: Quad comparator independently monitoring each rail against dedicated reference voltages to generate enable/disable strobes. Use Value: Four independent channels allow full-system sequencing validation in one SOIC-14 package, reducing BOM count and PCB area. |
| Battery Voltage Supervisor | Overvoltage Protection Latch |
Use Scenario: Monitoring Li-ion cell voltage or backup battery level to trigger low-battery warnings or graceful shutdown before cutoff. IC Role / Device Role / Timing Role: High-accuracy comparator detecting voltage decay below programmable thresholds using resistor-divider references. Use Value: 1.2–3.0 mA supply current enables continuous monitoring without significant battery drain in portable equipment. | Use Scenario: Detecting transient overvoltage events on motor drive or power converter outputs to activate crowbar or shutdown circuits. IC Role / Device Role / Timing Role: Fast-response comparator (300 ns) comparing sensed voltage against clamping reference to assert fault signal. Use Value: 300 ns large-signal response time ensures sub-microsecond reaction to dangerous overvoltage spikes before damage occurs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM339DR | Higher 2 mV max offset, 2.5 mA typical supply current, same SOIC-14 package and open-collector outputs. | Lower accuracy and higher power make it suitable for non-critical industrial controls but not precision sensor thresholds. | Select LM339DR only when cost is primary and 1 mV offset is not required. |
| TLV3704IPW | Lower 0.85 mV max offset, rail-to-rail inputs/outputs, but 1.2 µA supply current per comparator (4.8 µA total) and 10 µs response time. | Optimized for ultra-low-power battery operation, not speed-critical overvoltage latching or fast PWM sensing. | Choose TLV3704IPW for micropower designs where response time >1 µs is acceptable. |
Compared with LM339DR and TLV3704IPW, the CMP04FSZ uniquely balances sub-millivolt accuracy, 300 ns speed, and 2 mA total quiescent current-making it optimal for industrial-grade real-time monitoring where all three parameters matter simultaneously.
Availability
CMP04FSZ is available at Aetrix Electronics and suitable for industrial sensor interface, power supply sequencing monitor, and battery voltage supervisor applications requiring stable component supply across extended temperature and long production lifecycles.
Supply support for CMP04FSZ 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, headquartered in Norwood, MA, serving industrial, automotive, communications, and healthcare markets.
The CMP04FSZ belongs to Analog Devices' precision comparator product line, engineered for applications demanding low offset, fast response, and robust single-supply operation in harsh environments.
FAQ
What is the maximum supply voltage rating for the CMP04FSZ?
The CMP04FSZ has an absolute maximum supply voltage rating of +36 V for single-supply operation or ±18 V for dual-supply use. Operation beyond these limits risks permanent damage. The device is characterized for reliable performance from 5 V to 30 V supply, with supply current remaining stable across that range-making the CMP04FSZ suitable for wide-input industrial power rails without regulation overhead.
Does the CMP04FSZ support true rail-to-rail input operation?
The CMP04FSZ supports input common-mode voltage from 0 V to V+ − 1.5 V, enabling ground-referenced operation on single supplies. While not rail-to-rail on the upper end (limited to V+ − 1.5 V), this range accommodates most sensor and reference signals without level shifting. Inputs tolerate up to +30 V regardless of supply, providing overvoltage ruggedness. This behavior is confirmed in the Absolute Maximum Ratings and Electrical Characteristics tables for the CMP04FSZ.
Can the CMP04FSZ outputs drive a 5 V TTL load directly?
Yes-the CMP04FSZ open-collector outputs can directly drive standard 5 V TTL loads when paired with an appropriate pull-up resistor (e.g., 10 kΩ to 5 V). With ≤250 mV saturation voltage at 4 mA sink, the output achieves valid TTL LOW levels. Figure 2b in the CMP04FSZ datasheet explicitly shows this interface using a SN7400 gate, confirming compatibility without additional buffering or level translation.
What is the operating temperature range specified for the CMP04FSZ?
The CMP04FSZ is rated for operation from −40°C to +85°C, as stated in the Ordering Guide and Absolute Maximum Ratings sections of its datasheet. All electrical specifications-including input offset voltage (1 mV max), supply current (1.2–3.0 mA), and response time (300 ns)-are guaranteed across this full industrial temperature range, ensuring consistent performance in outdoor, factory-floor, or automotive under-hood environments.
Is the CMP04FSZ pin-compatible with the LM339 family?
Yes-the CMP04FSZ is a direct functional replacement for LM139/LM239/LM339 comparators, sharing identical 14-lead SOIC_N pinout, open-collector outputs, and single/dual-supply operation. The datasheet explicitly states "Directly Replaces LM139/LM239/LM339 Comparators." No PCB layout changes are needed when upgrading to CMP04FSZ for improved offset, speed, or supply current performance.
CMP04FSZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 4
- Output Type:
- CMOS, DTL, ECL, MOS, Open-Collector, TTL
- Voltage - Supply, Single/Dual (±):
- 3.3V ~ 36V, ±1.65V ~ 18V
- :
- 1mV @ 5V
- Voltage - Input Offset (Max):
- 0.1µA @ 5V
- Current - Input Bias (Max):
- 16mA @ 5V
- Current - Output (Typ):
- 3mA
- Current - Quiescent (Max):
- 100dB CMRR, 100dB PSRR
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 14-SOIC
CMP04FSZ FAQ
1.How can I place an order for CMP04FSZ through Aetrix?
Please submit a Request for Quotation (RFQ) for CMP04FSZ 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 CMP04FSZ reliable?
The price and inventory of CMP04FSZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CMP04FSZ is usually 5 days.
3.What payment methods are accepted for CMP04FSZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CMP04FSZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CMP04FSZ?
CMP04FSZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CMP04FSZ 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 CMP04FSZ?
For technical support, including CMP04FSZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CMP04FSZ requirements.
6.How does Aetrix verify that CMP04FSZ is sourced from the original manufacturer or authorized distributors?
All CMP04FSZ 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 CMP04FSZ meets industry standards.
7.What is the process for return or replacement of CMP04FSZ?
All CMP04FSZ units undergo pre-shipment inspection (PSI). If there is an issue with CMP04FSZ, 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 CMP04FSZ part is unused and in its original packaging.
Return procedure for CMP04FSZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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