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Analog Devices Inc./Maxim Integrated MAX4518CPD+
- Part No.:
- MAX4518CPD+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX4518CPD+.pdf
- Description:
- IC SWITCH SP4T X 1 100OHM 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,902
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Product details
Overview
The MAX4518CPD+ from Maxim Integrated is a precision 4-channel CMOS analog multiplexer with low on-resistance (<100Ω), matched channel resistance (<4Ω), rail-to-rail signal handling, and operation from +2.7V to +15V single supply or ±2.7V to ±8V dual supplies - used in sample-and-hold circuits, automatic test equipment, and low-voltage data-acquisition systems.
For engineers reviewing the MAX4518CPD+ datasheet, MAX4518CPD+ pinout, MAX4518CPD+ application, or MAX4518CPD+ equivalent, key selection criteria include guaranteed on-resistance flatness (<10Ω), charge injection (<5pC), NO-off leakage current (<2nA at +85°C), COM-off leakage (<5nA), and electrostatic discharge protection (>2000V).
Technical Context
The MAX4518CPD+ implements a monolithic CMOS analog switch architecture with TTL/CMOS-compatible digital control inputs (A0, A1, EN) and four normally-open analog channels (NO1–NO4) routed to a common terminal (COM). Its low-charge-injection design minimizes sampling error in precision acquisition paths.
It supports both unipolar and bipolar operation: V+ and V− pins accept asymmetric supplies (e.g., +10V/−5V), with V− tied to GND for single-supply use. The device guarantees break-before-make switching (tOPEN = 40ns typ) and transition time <250ns, enabling reliable signal routing in dynamic systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | <100Ω max at +25°C; ensures minimal signal attenuation and gain error in precision analog paths |
| On-Resistance Matching | <4Ω between channels; enables accurate differential or ratiometric measurements without calibration |
| On-Resistance Flatness | <10Ω over full analog signal range; maintains consistent gain and linearity across input voltage swing |
| Charge Injection | <5pC; reduces sampling pedestal error in ADC front-ends and sample-and-hold circuits |
| NO-Off Leakage Current | <2nA at +85°C; prevents DC error buildup in high-impedance sensor or filter networks |
| Supply Range | +2.7V to +15V single or ±2.7V to ±8V dual; supports battery-powered and industrial rail-flexible designs |
| Switching Speed | tTRANS <250ns; suitable for multiplexing signals up to ~1MHz without significant settling distortion |
Pinout & Package
MAX4518CPD+ is housed in a 14-pin plastic DIP package (0.300" wide), RoHS-compliant and rated for 0°C to +70°C operation. Pin 1 is A1 (MSB address), pin 14 is GND; V+ (pin 12), V− (pin 5), and COM (pin 8) are power and signal reference terminals.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | A1 | MSB address input for 4-channel selection (logic-compatible, 0.8V/2.4V thresholds) |
| 2 | GND | Logic ground reference; must be connected even in dual-supply mode |
| 3 | V+ | Positive supply input; sets upper analog signal limit and powers internal logic |
| 4 | NO3 | Analog input/output terminal for channel 3; bidirectional, rail-to-rail capable |
| 5 | NO1 | Analog input/output terminal for channel 1; electrically identical to NO2–NO4 |
| 6 | V− | Negative supply input; tied to GND for single-supply operation |
| 7 | EN | Active-high enable; disables all switches when low, reducing leakage and power |
| 8 | A0 | LSB address input; combined with A1, selects one of four NOx channels |
| 9 | NO4 | Analog input/output terminal for channel 4; shares same RON and leakage specs as NO1–NO3 |
| 10 | N.C. | No internal connection; must remain unconnected per datasheet |
| 11 | N.C. | No internal connection; floating, no pull-up/down required |
| 12 | N.C. | No internal connection; not bonded or routed internally |
| 13 | COM | Common analog terminal; connects to selected NOx channel when enabled |
| 14 | NO2 | Analog input/output terminal for channel 2; fully characterized for leakage and RON |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals from V− to V+ without clipping, enabling full utilization of supply rails in low-voltage systems |
| Guaranteed break-before-make | 40ns minimum tOPEN prevents momentary shorting between channels during address changes |
| ESD protection >2000V | HBM-rated per JEDEC JS-001; eliminates need for external ESD diodes in most board-level environments |
| Low power consumption | <300µW typical at +5V; enables use in always-on, battery-backed monitoring nodes |
| TTL/CMOS logic compatibility | Accepts standard logic thresholds (0.8V low / 2.4V high); interoperable with microcontrollers and FPGAs without level shifters |
Applications
| Sample-and-Hold Circuits | Automatic Test Equipment |
|---|---|
Use Scenario: Multiplexing multiple sensor outputs into a single high-precision ADC input with minimal hold-step error. IC Role / Device Role / Timing Role: Analog signal selector that routes conditioned sensor voltages to the ADC's sample capacitor with sub-5pC charge injection. Use Value: Enables multi-channel data acquisition without external calibration, preserving 12-bit+ accuracy across temperature. |
Use Scenario: Switching stimulus and response paths between DUT and measurement instruments in functional test racks. IC Role / Device Role / Timing Role: Precision analog switch matrix controlling signal flow for parametric testing of op-amps, filters, and comparators. Use Value: Guarantees <4Ω channel matching and <2nA leakage, ensuring measurement repeatability across thousands of test cycles. |
| Heads-Up Displays | Battery-Operated Systems |
Use Scenario: Routing video sync, brightness control, and sensor feedback signals in compact HUD modules with tight power budgets. IC Role / Device Role / Timing Role: Low-leakage, rail-to-rail analog mux managing analog interface signals between display driver ICs and microcontroller peripherals. Use Value: Eliminates signal degradation from off-state leakage or on-resistance mismatch, maintaining display timing integrity. |
Use Scenario: Selecting between battery voltage, thermistor, and microphone inputs in portable medical or IoT edge devices. IC Role / Device Role / Timing Role: Ultra-low-power analog switch enabling flexible sensor resource sharing while drawing <1µA quiescent current. Use Value: Extends battery life by minimizing standby current and avoiding external bias networks due to guaranteed <2nA leakage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1404BRUZ | 4-channel, ±15V max supply, RON = 1.8Ω typ, but higher charge injection (12pC) and no guaranteed flatness spec | Better suited for high-voltage industrial I/O; less ideal for precision low-voltage sampling due to higher charge error | Select ADG1404BRUZ only if supply >±12V is required and charge injection tolerance >10pC is acceptable |
| TS5A23157DGSR | Single-supply only (+1.65V to +5.5V), RON = 0.9Ω typ, but leakage >50nA at +85°C and no dual-supply support | Optimized for ultra-low-voltage portable logic-level routing, not precision analog signal conditioning | Choose TS5A23157DGSR only for 3.3V/1.8V logic-domain switching where leakage and flatness are non-critical |
Compared with ADG1404BRUZ and TS5A23157DGSR, the MAX4518CPD+ uniquely balances low leakage (<2nA), guaranteed flatness (<10Ω), and dual-supply flexibility - making it the only option among the three qualified for precision sample-and-hold and military-grade ATE applications.
Availability
MAX4518CPD+ is available at Aetrix Electronics and suitable for sample-and-hold circuits, automatic test equipment, and battery-operated systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4518CPD+ 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) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and computing markets.
The MAX4518CPD+ belongs to Maxim's precision analog switch product line, designed specifically for applications demanding low distortion, minimal charge injection, and guaranteed matching in data-acquisition and instrumentation systems.
FAQ
What is the maximum analog signal range supported by the MAX4518CPD+?
The MAX4518CPD+ supports rail-to-rail analog signals from V− to V+. With ±5V supplies, this yields a ±4.5V usable range; with +5V single supply (V− = GND), the range is 0V to +4.5V. The device guarantees flat on-resistance and low leakage across this full range, as confirmed in the Electrical Characteristics tables for dual- and single-supply conditions.
Does the MAX4518CPD+ require external pull-up resistors on its address or enable pins?
No, the MAX4518CPD+ does not require external pull-up resistors. Its A0, A1, and EN inputs are CMOS-logic compatible with guaranteed thresholds (VAL ≤ 0.8V, VAH ≥ 2.4V) and input currents <±0.1µA across temperature. Direct connection to microcontroller GPIOs or FPGA outputs is sufficient, as verified in the Digital Logic Input section of the datasheet.
Can the MAX4518CPD+ operate with unbalanced supplies such as +12V and −3V?
Yes, the MAX4518CPD+ supports unbalanced supplies. The absolute maximum rating specifies V+ to V− ≤ 17V, and Applications Information explicitly states operation with "+10V and −5V" is valid. Performance parameters (RON, leakage, switching speed) remain within datasheet limits as long as V+ and V− stay within their individual ranges (+2.7V to +15V and −17V to +0.3V respectively).
Is the MAX4518CPD+ pin-compatible with other variants like MAX4518CSD or MAX4518EEE?
No, the MAX4518CPD+ is not pin-compatible with MAX4518CSD (14-SO) or MAX4518EEE (16-QSOP). The CPD+ uses a 14-pin DIP footprint with specific pin assignments (e.g., NO1 on pin 5, COM on pin 8), while the QSOP variant relocates N.C. pins and adds two extra pins. PCB layout must match the 14-DIP mechanical outline and land pattern specified in the MAX4518CPD+ ordering information.
What is the thermal performance of the MAX4518CPD+ in continuous operation?
The MAX4518CPD+ has a maximum continuous power dissipation of 800mW at +70°C ambient (Plastic DIP package), derating linearly at 10.0mW/°C above that temperature. At room temperature with typical supply voltages (+5V, ±5V), total supply current remains <10µA, resulting in negligible self-heating - confirmed by Typical Operating Characteristics plots showing I+, I− stable across −55°C to +125°C.
MAX4518CPD+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SP4T
- Multiplexer/Demultiplexer Circuit:
- 4:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 100Ohm
- Channel-to-Channel Matching (ΔRon):
- 4Ohm (Max)
- Voltage - Supply, Single (V+):
- 2V ~ 15V
- Voltage - Supply, Dual (V±):
- ±2.7V ~ 8V
- Switch Time (Ton, Toff) (Max):
- 150ns, 150ns
- -3db Bandwidth:
- -
- Charge Injection:
- 5pC (Max)
- Channel Capacitance (CS(off), CD(off)):
- 5pF, 16pF
- Current - Leakage (IS(off)) (Max):
- 100pA
- Crosstalk:
- -92dB @ 100kHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
MAX4518CPD+ FAQ
1.How can I place an order for MAX4518CPD+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4518CPD+ 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 MAX4518CPD+ reliable?
The price and inventory of MAX4518CPD+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4518CPD+ is usually 5 days.
3.What payment methods are accepted for MAX4518CPD+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4518CPD+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4518CPD+?
MAX4518CPD+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4518CPD+ 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 MAX4518CPD+?
For technical support, including MAX4518CPD+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4518CPD+ requirements.
6.How does Aetrix verify that MAX4518CPD+ is sourced from the original manufacturer or authorized distributors?
All MAX4518CPD+ 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 MAX4518CPD+ meets industry standards.
7.What is the process for return or replacement of MAX4518CPD+?
All MAX4518CPD+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4518CPD+, 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 MAX4518CPD+ part is unused and in its original packaging.
Return procedure for MAX4518CPD+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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