Analog Devices Inc./Maxim Integrated MAX4504CPA
- Part No.:
- MAX4504CPA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX4504CPA.pdf
- Description:
- IC SWITCH SPST-NCX1 250OHM 8DIP
- Quantity:
- Payment:

- Shipping:

Inventory:2,485
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Product details
Overview
MAX4504CPA from Maxim Integrated is a low-voltage, dual-supply, single-pole/single-throw (SPST) CMOS analog switch with normally closed (NC) configuration. It operates from ±1V to ±6V supplies, supports rail-to-rail analog signals up to ±5.5V, delivers 250Ω on-resistance at ±5V, and exhibits only 1nA off-leakage at +25°C - ideal for precision signal routing in battery-powered instrumentation.
For engineers reviewing the MAX4504CPA datasheet, MAX4504CPA pinout, MAX4504CPA application, or MAX4504CPA equivalent, key selection criteria include guaranteed NC state behavior, dual-supply leakage performance across temperature, charge injection (≤10pC), switching speed (tON = 150ns), and compatibility with CMOS logic inputs without ground reference.
Technical Context
The MAX4504CPA implements a fully differential CMOS transmission gate architecture with no internal ground connection - its digital control logic is referenced to V+, and level translation is performed internally to drive analog switches between V+ and V−. All signal terminals (COM, NC, NO) feature ESD protection diodes to both supply rails.
It guarantees rail-to-rail analog operation: input signals may swing from V− to V+, and the device maintains specified on-resistance, leakage, and charge injection across that full range. The absence of a ground pin enables floating-bus applications but requires logic signals referenced to V+ to avoid absolute maximum rating violations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | ±1V to ±6V dual supply - enables operation in ultra-low-voltage systems (e.g., ±1.5V) and legacy ±5V designs |
| On-Resistance (RON) | 250Ω max at ±5V - ensures minimal signal attenuation and gain error in precision sensor or audio paths |
| Off-Leakage Current | 1nA max at +25°C - preserves accuracy in high-impedance measurement circuits (e.g., pH sensors, photodiode amps) |
| Charge Injection | 10pC max - limits voltage glitch on sampled nodes, critical for ADC front-end sample-and-hold stability |
| Switching Speed | tON = 150ns, tOFF = 100ns - supports multiplexing at >1MHz rates in data acquisition systems |
| Analog Signal Range | Rail-to-rail: V− to V+ - allows full utilization of supply headroom in bipolar signal chains |
| Logic Compatibility | CMOS-input with no ground pin - accepts logic high ≥(V+) − 1.5V, eliminating need for level shifters when V+ powers controller |
Pinout & Package
MAX4504CPA is housed in an 8-pin plastic DIP package (0.300" wide), suitable for through-hole prototyping and industrial control modules requiring mechanical robustness and thermal margin.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | COM (Common Terminal) | Analog signal path hub - bidirectionally connected to NC when enabled; must be routed with controlled impedance in RF-sensitive layouts |
| 2, 3, 5 | N.C. (Not Internally Connected) | No internal bond wire - pins are electrically isolated; may be left unconnected or used as keep-out markers on PCB |
| 4 | IN (Digital Control Input) | CMOS-compatible logic input referenced to V+ - low = switch ON (NC closed), high = switch OFF (NC open) |
| 6 | V− (Negative Supply) | Analog and logic supply return - all ESD diodes and internal bias networks reference this node; requires low-impedance decoupling |
| 7 | NC (Normally Closed Terminal) | Default-closed analog path to COM - opens when IN = high; interchangeable with NO/COM per datasheet note |
| 8 | V+ (Positive Supply) | Primary power and logic reference - supplies internal level translator and sets upper analog rail; must be decoupled near pin |
Key Features
| Feature | Design Value |
|---|---|
| No ground pin required | Enables true floating-bus operation and simplifies PCB layout in isolated subsystems (e.g., medical sensor front-ends) |
| Rail-to-rail analog switching | Supports full ±5.5V signal swing without clipping - essential for bipolar op-amp output multiplexing |
| Guaranteed 1nA off-leakage @ +25°C | Minimizes DC error in high-Z transducer interfaces (e.g., piezoelectric accelerometers, strain gauges) |
| 10pC max charge injection | Reduces sampling transient errors in 12-bit+ SAR ADC front-ends without external correction circuitry |
| 150ns turn-on time | Allows time-multiplexed channel scanning at ≥3MHz update rates in multi-channel DAQ systems |
Applications
| Battery-Powered Instrumentation | Audio Signal Routing |
|---|---|
|
Use Scenario: Portable multimeter front-end selecting between voltage, current, and resistance measurement paths. IC Role / Device Role: Normally closed SPST switch isolating high-impedance input stages during current measurement to prevent loading. Use Value: 1nA off-leakage ensures <0.1µV offset error in 10MΩ input impedance paths, preserving 4½-digit accuracy. |
Use Scenario: Headphone jack detection and left/right channel muting in Bluetooth earbuds. IC Role / Device Role: NC-configured switch enabling default audio path while allowing silent mute via logic control. Use Value: Rail-to-rail ±3V operation matches Li-ion battery voltage range, eliminating need for charge pumps in audio signal chain. |
| Low-Voltage Data Acquisition | PCMCIA Interface Switching |
|
Use Scenario: Multiplexing thermocouple, RTD, and voltage inputs into a single 24-bit sigma-delta ADC. IC Role / Device Role: Precision analog switch providing low RON and minimal charge injection to preserve ADC effective resolution. Use Value: 250Ω RON and 10pC charge injection enable ≤0.001% gain error and <1LSB settling error at 20SPS. |
Use Scenario: Isolating CardBus signals (3.3V I/O) from host controller during hot-plug events in industrial laptops. IC Role / Device Role: Bidirectional analog switch protecting 3.3V logic lines from voltage transients on PCMCIA bus. Use Value: Dual-supply ±3.3V operation matches CardBus signaling, while 100ns tOFF ensures fast fault isolation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4504CSA | Same electrical specs, 8-pin SOIC package - 50% smaller footprint, surface-mount only | Preferred for space-constrained PCBs; thermal resistance higher than DIP (471mW vs. 727mW) | Select when automated assembly and board density outweigh manual soldering needs |
| ADG1419BRNZ | Single-supply only (±15V max), 4.5Ω RON, but requires ground-referenced logic and has 25pC charge injection | Better for high-speed, low-RON applications where dual-supply operation is unnecessary | Choose only if system uses single-ended supplies and prioritizes on-resistance over leakage or charge injection |
Compared with MAX4504CPA, MAX4504CSA offers identical performance in a compact SOIC package ideal for volume production, while ADG1419BRNZ trades dual-supply flexibility and ultra-low leakage for lower on-resistance - making MAX4504CPA optimal for battery-powered, precision bipolar signal routing where leakage and charge injection dominate design constraints.
Availability
MAX4504CPA is available at Aetrix Electronics and suitable for battery-operated equipment, audio signal routing, and low-voltage data-acquisition systems requiring stable component supply across extended temperature ranges (0°C to +70°C).
Supply support for MAX4504CPA 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) designs precision analog, mixed-signal, and power management ICs for industrial, medical, and communications applications.
The MAX4503/MAX4504 product line targets low-voltage, dual-supply analog switching in portable and isolated systems - emphasizing rail-to-rail operation, ultra-low leakage, and groundless logic interface for simplified system integration.
FAQ
What is the operating temperature range for MAX4504CPA?
The MAX4504CPA is rated for operation from 0°C to +70°C. This commercial-grade temperature range is validated per the datasheet's "Ordering Information" table and applies specifically to the CPA suffix variant. It is not rated for extended industrial (−40°C to +85°C) or military (−55°C to +125°C) ranges - those require MAX4504EPA or MAX4504MJA variants respectively.
Does MAX4504CPA require a ground connection for proper operation?
No, the MAX4504CPA has no ground pin and does not require a system ground connection. Its digital input is referenced to V+, and internal level translation drives the analog switches between V+ and V−. Connecting external logic to a separate ground violates absolute maximum ratings and risks damage - logic signals must be referenced to the same V+ supply.
Can MAX4504CPA be used with single-supply systems?
The MAX4504CPA is designed exclusively for dual-supply operation (±1V to ±6V). For single-supply applications, Maxim specifies the pin-for-pin compatible MAX4502 - which shares the same NC functionality but includes a ground pin and is optimized for 3V to 12V single-rail use. Using MAX4504CPA with only V+ and no V− will result in undefined behavior and potential latch-up.
What is the maximum analog signal voltage the MAX4504CPA can handle?
The MAX4504CPA supports rail-to-rail analog signals from V− to V+. With ±5V supplies, it handles ±5.5V (per Absolute Maximum Ratings), meaning analog inputs may swing from −5.5V to +5.5V. Exceeding either supply rail forward-biases internal ESD diodes - limiting current to ±10mA is mandatory to prevent damage, as specified in the Absolute Maximum Ratings table.
How does the NC (normally closed) function of MAX4504CPA behave during power-down?
When V+ and V− are unpowered, the MAX4504CPA's NC path remains in its last known state only if residual charge maintains gate bias - but this is unreliable. Per datasheet guidance, the device is not characterized for power-down behavior. For guaranteed open-circuit isolation during power loss, external fail-safe circuitry (e.g., series resistor + pull-down) is required, as the internal MOSFET gates lose control voltage without active supplies.
MAX4504CPA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 250Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- ±1V ~ 6V
- Switch Time (Ton, Toff) (Max):
- 150ns, 100ns
- -3db Bandwidth:
- -
- Charge Injection:
- 1pC
- Channel Capacitance (CS(off), CD(off)):
- 3pF, 3pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
MAX4504CPA FAQ
1.How can I place an order for MAX4504CPA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4504CPA 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 MAX4504CPA reliable?
The price and inventory of MAX4504CPA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4504CPA is usually 5 days.
3.What payment methods are accepted for MAX4504CPA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4504CPA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4504CPA?
MAX4504CPA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4504CPA 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 MAX4504CPA?
For technical support, including MAX4504CPA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4504CPA requirements.
6.How does Aetrix verify that MAX4504CPA is sourced from the original manufacturer or authorized distributors?
All MAX4504CPA 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 MAX4504CPA meets industry standards.
7.What is the process for return or replacement of MAX4504CPA?
All MAX4504CPA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4504CPA, 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 MAX4504CPA part is unused and in its original packaging.
Return procedure for MAX4504CPA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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