My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX4503CPA
- Part No.:
- MAX4503CPA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX4503CPA.pdf
- Description:
- IC SWITCH SPST-NOX1 250OHM 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,538
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX4503CPA from Maxim Integrated is a low-voltage, dual-supply, normally-open (NO) SPST CMOS analog switch rated for ±1V to ±6V operation, with 250Ω on-resistance at ±5V, 1nA off-leakage at +25°C, and rail-to-rail signal handling-used in battery-powered audio routing and low-voltage data-acquisition systems.
For engineers reviewing the MAX4503CPA datasheet, MAX4503CPA pinout, MAX4503CPA application, or MAX4503CPA equivalent, this page delivers verified electrical specs, package mapping, real-world use scenarios, and validated alternative options for precision analog switching design.
Technical Context
The MAX4503CPA implements a CMOS transmission-gate architecture with independent V+ and V− supply pins-no ground connection required-and uses internal logic-level translation referenced to V+ to drive gate control. Its digital input remains CMOS-compatible across full ±5V supply range without external level-shifting.
Signal path isolation relies on reverse-biased ESD diodes between COM/NO/V−/V+, resulting in leakage currents that vary with analog voltage swing but remain tightly specified: ≤1nA off-leakage at +25°C and ≤10nA at +85°C, enabling high-impedance sensor interfacing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | ±1V to ±6V dual supply-supports ultra-low-voltage portable systems and robust industrial rails |
| On-Resistance | 250Ω max at ±5V-ensures minimal signal attenuation in precision instrumentation paths |
| Off-Leakage Current | 1nA max at +25°C-preserves accuracy in high-impedance sensor or reference circuits |
| Charge Injection | 10pC max-limits voltage glitch during switching in sample-and-hold or multiplexer applications |
| Switching Speed | tON = 150ns, tOFF = 100ns-enables reliable operation in moderate-speed data acquisition |
| Analog Signal Range | Rail-to-rail (V− to V+)-allows full dynamic range utilization without clipping |
| Logic Compatibility | CMOS-input with no ground pin-simplifies PCB layout in isolated or floating supply domains |
Pinout & Package
MAX4503CPA is supplied in an 8-pin plastic DIP package (0°C to +70°C operating range), with lead spacing of 0.300", body width 0.394", and standard through-hole mounting.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | COM | Analog common terminal-bidirectional signal path shared with NO/NC |
| 2, 3, 5 | N.C. | No internal connection-must be left unconnected per datasheet |
| 4 | IN | Digital control input-CMOS-compatible logic signal toggles switch state |
| 6 | V− | Negative analog/digital supply-sets lower rail for signal and logic |
| 7 | NO | Normally-open analog terminal-connects to COM only when IN = HIGH |
| 8 | V+ | Positive analog/digital supply-sets upper rail and references internal logic |
Key Features
| Feature | Design Value |
|---|---|
| Dual-supply operation | Operates from ±1V to ±6V-eliminates need for level shifters in mixed-rail systems |
| No ground pin required | Internal V+-referenced logic translator enables floating or isolated supply designs |
| Guaranteed low charge injection | ≤10pC-reduces sampling error in precision ADC front-ends and hold circuits |
| Low on-leakage current | 2nA max at +25°C-maintains DC integrity in high-Z sensor bias networks |
| Fast turn-on/turn-off | 150ns/100ns-supports multiplexing rates up to ~3MHz without timing skew |
Applications
| Battery-Operated Audio Routing | Low-Voltage Data Acquisition |
|---|---|
Use Scenario: Switching microphone or line-level audio signals between multiple codecs in handheld devices. IC Role / Device Role / Timing Role: SPST analog switch controlling signal path selection with minimal crosstalk and distortion. Use Value: Rail-to-rail operation preserves full audio swing; 1nA off-leakage prevents DC offset drift in AC-coupled paths. | Use Scenario: Multiplexing sensor outputs (e.g., thermocouples, strain gauges) into a single ADC channel. IC Role / Device Role / Timing Role: Precision analog switch isolating high-impedance sources during channel scanning. Use Value: 250Ω on-resistance and 10pC charge injection ensure measurement repeatability and low settling error. |
| PCMCIA Card Signal Switching | Communications Circuit Isolation |
Use Scenario: Enabling/disabling interface lines (e.g., UART, SPI) between host and PCMCIA peripheral cards. IC Role / Device Role / Timing Role: Voltage-level agnostic signal gate managing hot-plug compatibility and power domain separation. Use Value: Dual-supply tolerance allows seamless integration across +3.3V/+5V or ±5V card interfaces without redesign. | Use Scenario: Isolating RF front-end components (e.g., LNA inputs) from baseband circuitry during standby mode. IC Role / Device Role / Timing Role: High-isolation analog switch breaking signal path to reduce standby current and noise coupling. Use Value: −65dB off-isolation at 100kHz ensures minimal signal bleed-through in sensitive receive chains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4503CSA | Same electrical specs, 8-pin SOIC package instead of DIP-0.150" wide, surface-mount compatible | Requires rework of PCB footprint and soldering process; better for automated assembly | Select when board space is constrained or SMT manufacturing is preferred |
| ADG1419BRMZ | Single-channel SPST, ±15V max supply, 0.6Ω on-resistance, but requires ground pin and 2.7–16.5V single/dual supply | Not pin-compatible; higher performance but incompatible supply architecture and logic referencing | Consider only if higher voltage range or lower RON is critical-and ground-referenced design is acceptable |
Compared with MAX4503CSA, the MAX4503CPA offers identical analog performance in a through-hole DIP package ideal for prototyping and legacy systems; versus ADG1419BRMZ, it trades lower on-resistance for groundless operation and tighter leakage control at low voltages.
Availability
MAX4503CPA is available at Aetrix Electronics and suitable for battery-operated equipment, audio and video signal routing, and low-voltage data-acquisition systems requiring stable component supply across industrial and embedded design cycles.
Supply support for MAX4503CPA 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, communications, and consumer applications.
The MAX4503/MAX4504 family targets low-voltage, dual-supply analog switching where groundless operation, rail-to-rail signal handling, and ultra-low leakage are essential-especially in portable and isolated measurement systems.
FAQ
What is the maximum dual-supply voltage range supported by the MAX4503CPA?
The MAX4503CPA supports continuous dual-supply operation from ±1V up to ±6V. This range is explicitly guaranteed in the Absolute Maximum Ratings and Electrical Characteristics tables, with full functionality-including rail-to-rail analog signal handling and CMOS-compatible logic input-verified across the entire span. Operation beyond ±6V risks permanent damage per the datasheet stress limits.
Does the MAX4503CPA require a ground connection for proper operation?
No, the MAX4503CPA has no ground pin and operates without one. Its digital input is internally referenced to V+, and logic translation is powered solely by V+ and V−. This architecture eliminates ground-loop concerns and simplifies designs with floating or isolated supplies-confirmed by the "unique logic input architecture" description and pinout diagrams showing only V+, V−, IN, COM, NO, and N.C. pins.
What is the guaranteed on-resistance value for the MAX4503CPA at ±5V supplies?
The MAX4503CPA guarantees a maximum on-resistance (RON) of 250Ω when operated with ±5V supplies (V+ = +4.5V to +5.5V, V− = −4.5V to −5.5V), measured at TA = +25°C with VCOM = ±4.5V and ICOM = 1mA. This value is production-tested and appears in the Electrical Characteristics table under "COM to NO or NC On-Resistance."
How does the MAX4503CPA achieve CMOS-logic compatibility without a ground pin?
The MAX4503CPA achieves CMOS-logic compatibility via an internal comparator referenced to V+, which sets logic thresholds relative to V+ rather than ground. With V+ = +5V, VIH is guaranteed ≥ (V+) − 1.5V and VIL ≤ (V+) − 3.5V, matching standard CMOS levels. This architecture-described in the Applications Information section-is intrinsic to the MAX4503CPA's design and requires no external components or ground reference.
Is the MAX4503CPA pin-compatible with the MAX4504CPA?
No, the MAX4503CPA and MAX4504CPA are functionally complementary-not pin-compatible-variants: MAX4503CPA is normally open (NO), while MAX4504CPA is normally closed (NC). Their pinouts are identical (same DIP-8 package, same pin assignments), but their default states and truth tables differ. Substituting one for the other without logic inversion will invert system behavior, as confirmed by the Input Logic Table and Pin Description sections.
MAX4503CPA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO
- 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
MAX4503CPA FAQ
1.How can I place an order for MAX4503CPA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4503CPA 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 MAX4503CPA reliable?
The price and inventory of MAX4503CPA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4503CPA is usually 5 days.
3.What payment methods are accepted for MAX4503CPA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4503CPA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4503CPA?
MAX4503CPA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4503CPA 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 MAX4503CPA?
For technical support, including MAX4503CPA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4503CPA requirements.
6.How does Aetrix verify that MAX4503CPA is sourced from the original manufacturer or authorized distributors?
All MAX4503CPA 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 MAX4503CPA meets industry standards.
7.What is the process for return or replacement of MAX4503CPA?
All MAX4503CPA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4503CPA, 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 MAX4503CPA part is unused and in its original packaging.
Return procedure for MAX4503CPA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX4503CPA Tags
-
SN74LVC1G3157DBVR
Texas Instruments
-
SN74LVC1G66DBVR
Texas Instruments
-
SN74LVC1G66DCKR
Texas Instruments
-
SN74LVC1G3157DSFR
Texas Instruments
-
1P1G3157QDCKRQ1
Texas Instruments
-
SN74LVC2G66DCUR
Texas Instruments
-
SN74LV4052APWR
Texas Instruments
-
74HC4051D,653
Nexperia USA Inc.
-
SN74LV4051APWR
Texas Instruments
-
CD74HC4052PWR
Texas Instruments
-
CD74HC4051PWR
Texas Instruments
-
TS5A3166DBVR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
