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Analog Devices Inc./Maxim Integrated MAX4504CSA
- Part No.:
- MAX4504CSA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4504CSA.pdf
- Description:
- IC SWITCH SPST-NCX1 250OHM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,886
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Product details
Overview
MAX4504CSA from Maxim Integrated is a low-voltage, dual-supply, normally closed (NC) SPST CMOS analog switch in SOT23-5 package. It operates with ±1V to ±6V supplies, delivers rail-to-rail signal handling, guarantees 250Ω on-resistance at ±5V, and exhibits only 1nA off-leakage at +25°C - enabling precision signal routing in battery-powered audio and data-acquisition systems.
For engineers reviewing the MAX4504CSA datasheet, MAX4504CSA pinout, MAX4504CSA application, or MAX4504CSA equivalent, key selection criteria include its NC default state, absence of ground pin, CMOS-logic compatibility without reference to GND, and guaranteed charge injection ≤10pC for low-distortion switching in sensitive analog paths.
Technical Context
The MAX4504CSA uses a fully differential CMOS transmission-gate architecture with no internal ground connection, relying solely on V+ and V− to define analog signal range and bias logic-level translation circuitry. Its digital input is referenced internally to V+, enabling CMOS-compatible control even with asymmetric or low-magnitude dual supplies.
Each switch channel supports bidirectional rail-to-rail analog signals up to ±6V, with leakage currents strictly characterized across temperature (1nA @ +25°C, 10nA @ +85°C) and on-resistance stable over VCOM (±4.5V) and temperature (60Ω typ. @ +25°C, 350Ω max. @ −55°C to +125°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | Normally closed (NC) SPST analog switch - conducts by default; requires logic HIGH to open |
| Supply Range | ±1V to ±6V dual supply - enables operation from ultra-low-voltage battery rails up to industrial ±5V systems |
| On-Resistance | 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 integrity |
| Switching Speed | tON = 150ns, tOFF = 100ns - supports multiplexing at >1MHz update rates in data acquisition |
| Logic Compatibility | CMOS-input with V+ reference - eliminates need for level-shifting when driven from same-supply microcontrollers |
Pinout & Package
SOT23-5 surface-mount package (3.0mm × 1.75mm × 1.3mm), lead-free and RoHS-compliant, optimized for space-constrained portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - COM | Analog common terminal | Bidirectional signal path node; connects to load or source in NC configuration |
| 2 - NC | Analog normally closed terminal | Internally connected to COM when IN = LOW; breaks connection when IN = HIGH |
| 3 - V− | Negative analog/digital supply | Sets lower rail of analog signal range and biases internal ESD diodes and logic translator |
| 4 - IN | Digital control input | CMOS-compatible logic input referenced to V+; HIGH opens switch, LOW maintains closure |
| 5 - V+ | Positive analog/digital supply | Sets upper rail of analog signal range and powers internal logic; no ground pin required |
Key Features
| Feature | Design Value |
|---|---|
| No ground pin required | Enables true floating dual-supply operation in isolated or split-rail systems without GND reference constraints |
| Rail-to-rail analog signal handling | Supports full-swing signals from V− to V+, eliminating clipping in ±3V or ±5V audio and sensor interfaces |
| Guaranteed 1nA off-leakage @ +25°C | Minimizes DC error accumulation in high-Z integrators, sample-and-hold, and medical electrode monitoring |
| 10pC max. charge injection | Reduces settling error and droop in precision ADC sampling networks and programmable-gain amplifier paths |
| 150ns turn-on / 100ns turn-off | Enables time-multiplexed signal routing in multi-channel data loggers and real-time audio mixers |
Applications
| Audio Signal Routing | Portable Data Acquisition |
|---|---|
Use Scenario: Switching microphone inputs or headphone outputs in Bluetooth headsets and voice recorders. IC Role / Device Role / Timing Role: NC SPST analog switch providing default audio path continuity during power-up and low-power states. Use Value: Eliminates pop/click artifacts by maintaining closed path until MCU asserts control, while consuming <100µA quiescent current. | Use Scenario: Multiplexing thermocouple, RTD, or strain gauge signals into a single SAR ADC in handheld test equipment. IC Role / Device Role / Timing Role: Low-leakage analog switch isolating high-impedance sensor nodes between conversions. Use Value: 1nA off-leakage prevents measurable offset drift in 10MΩ+ sensor bridges, preserving 16-bit measurement accuracy. |
| Cellular Baseband Switching | PCMCIA/ExpressCard Interface |
Use Scenario: Routing RF front-end calibration signals or baseband I/Q paths in 3G/4G transceivers. IC Role / Device Role / Timing Role: Fast-switching NC switch enabling automatic loopback diagnostics without external pull-ups. Use Value: 100ns tOFF allows sub-microsecond reconfiguration for real-time self-test sequences in modem ICs. | Use Scenario: Isolating host-side 3.3V logic from card-side 5V or ±12V peripherals in legacy PCMCIA slots. IC Role / Device Role / Timing Role: Dual-supply analog switch translating and protecting interface signals across incompatible voltage domains. Use Value: ±6V rating and rail-to-rail operation safely handle PCMCIA's mixed-supply signaling without level shifters or clamps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4504ESA | Same functionality and pinout; extended temperature range (−40°C to +85°C) vs. MAX4504CSA (0°C to +70°C) | Suitable for industrial or automotive under-hood environments requiring wider thermal stability | Select MAX4504ESA when operating ambient exceeds +70°C or requires AEC-Q200 alignment |
| ADG1419BRMZ | SPST NC switch with higher supply range (±15V), 3.5Ω on-resistance, but requires ground pin and consumes 120µA supply current | Better for high-voltage industrial PLC I/O modules; unsuitable for ultra-low-power battery systems | Choose ADG1419BRMZ only when ±15V operation and sub-5Ω RON outweigh size, power, and ground-pin constraints |
Compared with MAX4504CSA, MAX4504ESA offers identical electrical behavior with enhanced thermal robustness, while ADG1419BRMZ trades ultra-low leakage and groundless operation for higher voltage capability and lower on-resistance - making MAX4504CSA optimal for compact, battery-powered, ground-isolated signal routing.
Availability
MAX4504CSA is available at Aetrix Electronics and suitable for battery-operated equipment, audio signal routing, and low-voltage data-acquisition systems requiring stable component supply and long-term obsolescence management.
Supply support for MAX4504CSA 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 demanding industrial, communications, and consumer applications.
The MAX4503/MAX4504 family was engineered specifically for low-voltage, dual-supply analog switching in portable and isolated systems where ground-referenced logic or level shifters are impractical.
FAQ
What is the default switch state of the MAX4504CSA?
The MAX4504CSA is a normally closed (NC) analog switch: it conducts between COM and NC terminals when the IN pin is logic LOW (≤ V− + 1.5V). Applying a logic HIGH (≥ V+ − 1.5V) to IN opens the path. This default-closed behavior ensures signal continuity during power-up or MCU reset, preventing silent audio paths or open sensor loops in safety-critical portable systems. The MAX4504CSA achieves this using internal transmission-gate biasing without requiring external pull-up resistors.
Does the MAX4504CSA require a ground connection?
No, the MAX4504CSA has no ground pin and operates with only V+ and V− supply connections. Its digital input is internally referenced to V+, and all ESD protection diodes connect to V+ and V− - enabling true floating operation in isolated or split-rail systems. This eliminates ground-loop risks in medical instrumentation or battery-powered devices where ground references are unstable or absent. The MAX4504CSA's architecture inherently avoids the need for level-shifting circuitry when interfacing with same-supply microcontrollers.
What is the maximum analog signal voltage the MAX4504CSA can handle?
The MAX4504CSA supports rail-to-rail analog signals from V− to V+, with absolute maximum ratings allowing V+ up to +13V and any signal pin up to (V+ + 0.3V) or −0.3V (referenced to V−). Under normal operation with ±5V supplies, it reliably passes ±4.5V signals without distortion or clipping. Exceeding V+ or V− activates internal ESD diodes, limiting forward current to ±10mA - so external series resistors are recommended if transient overvoltage is possible. This rail-to-rail capability makes the MAX4504CSA suitable for full-scale audio, sensor, and communication signal routing.
How does charge injection affect performance in the MAX4504CSA?
The MAX4504CSA guarantees ≤10pC maximum charge injection, which causes a voltage glitch (∆VOUT = Q / CL) on capacitive nodes like ADC sample-and-hold capacitors or filter integrators. For example, with a 100pF hold capacitor, worst-case 10pC injection yields only 100mV error - manageable via blanking or calibration. This low value results from matched transistor geometry and symmetric layout in the MAX4504CSA's CMOS transmission gate, making it suitable for 12–16-bit data acquisition where switching-induced errors must be minimized. Charge injection is characterized across VCOM and temperature per Figure MAX4503-03.
Can the MAX4504CSA be used with single-supply systems?
The MAX4504CSA is designed for dual-supply operation (±1V to ±6V) and is not rated for true single-supply use (e.g., 0V to +5V). However, it can function with V− = 0V and V+ = +5V, provided the analog signal stays within 0V to +5V and logic thresholds are adjusted accordingly - though leakage and on-resistance degrade versus symmetric supplies. For dedicated single-supply applications, Maxim specifies the pin-compatible MAX4502 (NC version) and MAX4501 (NO version) as drop-in replacements. Using MAX4504CSA in single-supply mode voids guaranteed specs and is not recommended for production designs requiring full parameter compliance.
MAX4504CSA 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:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX4504CSA FAQ
1.How can I place an order for MAX4504CSA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4504CSA 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 MAX4504CSA reliable?
The price and inventory of MAX4504CSA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4504CSA is usually 5 days.
3.What payment methods are accepted for MAX4504CSA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4504CSA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4504CSA?
MAX4504CSA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4504CSA 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 MAX4504CSA?
For technical support, including MAX4504CSA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4504CSA requirements.
6.How does Aetrix verify that MAX4504CSA is sourced from the original manufacturer or authorized distributors?
All MAX4504CSA 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 MAX4504CSA meets industry standards.
7.What is the process for return or replacement of MAX4504CSA?
All MAX4504CSA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4504CSA, 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 MAX4504CSA part is unused and in its original packaging.
Return procedure for MAX4504CSA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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