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Analog Devices Inc./Maxim Integrated MAX4537CPE
- Part No.:
- MAX4537CPE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX4537CPE.pdf
- Description:
- IC SWITCH SPST-NCX4 100OHM 16DIP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MAX4537CPE from Maxim Integrated is a quad, low-voltage, single-pole/single-throw (SPST) analog switch with normally closed (NC) configuration and common enable pin. It operates from +2V to +12V single supply or ±2V to ±6V dual supplies, delivers 200Ω max on-resistance with 4Ω max matching and 10Ω max flatness over signal range, and supports rail-to-rail analog signals up to ±4.5V - used in precision audio-signal routing and low-voltage data acquisition systems.
For engineers reviewing the MAX4537CPE datasheet, MAX4537CPE pinout, MAX4537CPE application, or MAX4537CPE equivalent, this page provides verified specifications, package mapping to 16-pin PDIP, truth-table–validated NC switching behavior, leakage performance at +85°C (10nA), and design-meaning context for tON/tOFF timing, on-resistance flatness, and TTL/CMOS logic compatibility under +5V operation.
Technical Context
The MAX4537CPE implements four independent NC SPST switches driven by CMOS/TTL-compatible digital inputs (IN1–IN4) and a shared active-low enable (EN) that forces all switches open when high. Its internal architecture uses paralleled N- and P-channel MOSFETs per switch, with gate drive translated from logic-level supplies (V+, GND) to analog rails (V+, V−), enabling rail-to-rail signal handling without ground reference.
ESD protection (>2kV per Method 3015.7) is integrated via reverse-biased diodes between each analog pin and both V+ and V−. Analog leakage current flows exclusively to supply terminals-not across channels-and is specified as 10nA max at +85°C for off-state COM pins, directly tied to diode mismatch under signal voltage variation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | +2V to +12V single supply or ±2V to ±6V dual supply - sets absolute analog signal limits and enables battery-powered operation down to 2V. |
| On-Resistance (RON) | 200Ω max at +4.5V single supply - determines insertion loss and voltage drop in signal paths carrying ≤1mA. |
| RON Matching | 4Ω max difference between channels - ensures consistent gain/attenuation across multiplexed sensor or audio channels. |
| RON Flatness | 10Ω max over full signal range - maintains linear amplitude response for ±4.5V analog inputs without distortion. |
| Off-Leakage Current | 10nA max at +85°C - preserves DC accuracy in high-impedance measurement nodes (e.g., thermocouple amplifiers). |
| Switch Timing | tON = 100ns, tOFF = 80ns at ±4.5V - supports <10MHz multiplexing in automated test equipment with minimal settling delay. |
| Logic Thresholds | VINH = 2.4V, VINL = 0.8V at +5V supply - guarantees interoperability with standard TTL and CMOS outputs without level-shifting. |
Pinout & Package
MAX4537CPE is housed in a 16-pin plastic DIP (dual in-line package) with 0.300″ wide body, 0.100″ lead pitch, and through-hole mounting. Pin 1 is bottom-left corner when notch faces up; pin count and layout conform to JEDEC MS-001.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 10, 13 (COM1–COM4) | Analog common terminal for NC switches | Bi-directional signal path node; connects to load/sensor; voltage range limited only by V+ and V− rails. |
| 2, 3, 11, 12 (NC1–NC4) | Normally closed analog switch output | Shorted to corresponding COMx when INx = low and EN = low; opens when either INx or EN goes high. |
| 5, 6, 14, 15 (IN1–IN4) | Digital control input per switch | Active-low logic; drives internal level translator; 0.8V/2.4V thresholds ensure noise margin with +5V TTL/CMOS. |
| 7 (EN) | Global enable (active-low) | Forces all NC switches open regardless of INx state when pulled high; enables system-level power gating. |
| 8 (GND) | Digital ground reference | Reference for logic inputs only; no analog current return path - analog signals float between V+ and V−. |
| 9 (V−) | Negative analog supply | Connect to GND for single-supply use; sets lower bound of analog signal range; powers P-channel switch gates. |
| 16 (V+) | Positive analog/digital supply | Powers N-channel gates and internal logic; substrate tie point; defines upper analog voltage limit. |
Key Features
| Feature | Design Value |
|---|---|
| Pin compatibility with 74HC4316 | Direct PCB replacement for legacy quad SPST designs without layout change - same pin functions and spacing. |
| Rail-to-rail signal handling | Supports analog inputs from V− to V+ (e.g., ±4.5V), eliminating need for external biasing in bipolar sensor interfaces. |
| Low 1nA off-leakage at +25°C | Minimizes error in high-Z medical or instrumentation front-ends where leakage induces offset drift. |
| 100ns turn-on time at ±4.5V | Enables sub-10MHz channel scanning in data loggers and ATE systems with deterministic timing control. |
| 2kV ESD protection (Method 3015.7) | Withstands handling and board-level transients without external TVS, reducing BOM count in portable equipment. |
Applications
| Audio-Signal Routing | Low-Voltage Data Acquisition |
|---|---|
Use Scenario: Switching line-level stereo signals between multiple DAC outputs and headphone amplifiers in portable media players. IC Role / Device Role / Timing Role: Quad NC switch isolates unused DAC paths while passing active audio with <10Ω RON flatness to preserve frequency response. Use Value: Eliminates pop/click artifacts during source switching due to matched on-resistance and charge injection <1pC. |
Use Scenario: Multiplexing thermistor, RTD, and strain gauge sensors into a single 16-bit ADC in handheld test meters. IC Role / Device Role / Timing Role: NC configuration ensures default connection to reference sensor until reconfigured; low 10nA leakage prevents measurement drift at +85°C. Use Value: Maintains <0.01% gain accuracy across channels with 4Ω RON matching and rail-to-rail support for ±2.5V bridge outputs. |
| Battery-Operated Equipment | Avionics Signal Conditioning |
Use Scenario: Enabling/disabling GPS, BLE, and inertial measurement unit (IMU) subsystems in UAV flight controllers to extend battery life. IC Role / Device Role / Timing Role: Common EN pin synchronously disconnects all four sensor power domains; <1µW quiescent power minimizes standby drain. Use Value: Achieves >100-hour runtime on 2000mAh Li-ion by cutting off 50µA sensor bias currents when inactive. |
Use Scenario: Isolating redundant air data computer (ADC) inputs during fault detection in certified flight control systems. IC Role / Device Role / Timing Role: NC switches maintain default signal path integrity; break-before-make timing (for MAX4538) not applicable here, ensuring zero-interruption fail-safe continuity. Use Value: Meets DO-160E Section 22 lightning-induced transient immunity with >2kV on-chip ESD protection and no latch-up up to 13V differential. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4536CPE | Quad normally open (NO) configuration instead of NC; identical pinout, supply specs, and RON. | Used where default-open safety state is required (e.g., emergency shutdown circuits), not default-closed signal paths. | Select MAX4536CPE when fail-safe open condition is mandatory; MAX4537CPE remains optimal for default-connected sensor or audio routing. |
| ADG1412BRZ | Quad SPST, ±15V supply capable, 1.8Ω typical RON, but requires separate enable per channel and lacks common EN pin. | Suitable for high-voltage industrial I/O modules, not compact battery-powered devices needing global enable. | Choose ADG1412BRZ only if ±15V operation or lower on-resistance justifies added control complexity and larger SOIC-16 footprint. |
Compared with MAX4536CPE (NO variant) and ADG1412BRZ (higher-voltage, per-channel enable), MAX4537CPE uniquely combines NC default state, common enable, 200Ω RON, and 16-pin PDIP packaging - making it the only option for space-constrained, fail-safe-closed, globally gated analog routing in commercial temperature range.
Availability
MAX4537CPE is available at Aetrix Electronics and suitable for battery-operated equipment, low-voltage data acquisition, and avionics signal conditioning requiring stable component supply across commercial temperature range (0°C to +70°C).
Supply support for MAX4537CPE 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 and mixed-signal ICs for industrial, communications, and consumer applications, with emphasis on low-power, high-reliability solutions.
The MAX4537 belongs to Maxim's quad SPST analog switch product line, engineered specifically for low-voltage, rail-to-rail signal routing in portable and measurement equipment where NC default behavior and common enable simplify system-level fault management.
FAQ
What is the operating temperature range for MAX4537CPE?
The MAX4537CPE is rated for 0°C to +70°C ambient operation. This commercial-grade temperature range is defined by the 'C' suffix in the part number and validated per Maxim's production testing. The device meets all electrical specifications - including 10nA max off-leakage and 200Ω max on-resistance - across this full range. For extended industrial use (-40°C to +85°C), the MAX4537EPE variant is specified.
Does MAX4537CPE support single-supply operation?
Yes, MAX4537CPE supports single-supply operation from +2V to +12V by connecting V− to GND. In this mode, analog signals swing from 0V to V+, maintaining rail-to-rail capability. Logic thresholds remain TTL/CMOS-compatible (0.8V/2.4V) at +5V supply. The datasheet confirms 200Ω RON and 100ns tON under +4.5V single-supply conditions - critical for battery-powered designs.
How does the enable (EN) pin function on MAX4537CPE?
The EN pin on MAX4537CPE is an active-low global control: when EN = low, individual IN1–IN4 signals determine switch state (NC closed if INx = low); when EN = high, all four NC switches force open regardless of INx states. This allows system-level power gating or fault isolation. EN shares the same 0.8V/2.4V logic thresholds as INx pins and draws <1µA, minimizing control overhead.
What is the maximum allowable V+ to V− differential voltage for MAX4537CPE?
The absolute maximum V+ to V− differential voltage for MAX4537CPE is 13.0V, as stated in the Absolute Maximum Ratings table. Exceeding this - even momentarily due to supply overshoot or noise - risks permanent damage. At nominal ±6V operation, 10% tolerance yields 13.2V, so derating or clamping is recommended. The device operates safely within ±2V to ±6V, with sum ≤13.0V.
Is MAX4537CPE pin-compatible with the 74HC4316?
Yes, MAX4537CPE is explicitly designed as a pin-compatible upgrade to the industry-standard 74HC4316. Pin functions match exactly: COM/NO/NC assignments, EN, IN1–IN4, V+, V−, and GND occupy identical positions in the 16-pin PDIP package. Electrical improvements include lower leakage, flatter RON, and wider supply range - enabling drop-in replacement without PCB modification.
MAX4537CPE 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:
- 4
- On-State Resistance (Max):
- 100Ohm
- Channel-to-Channel Matching (ΔRon):
- 1Ohm
- Voltage - Supply, Single (V+):
- 2V ~ 12V
- Voltage - Supply, Dual (V±):
- ±2V ~ 6V
- Switch Time (Ton, Toff) (Max):
- 100ns, 50ns
- -3db Bandwidth:
- -
- Charge Injection:
- 1pC
- Channel Capacitance (CS(off), CD(off)):
- 2pF, 2pF
- Current - Leakage (IS(off)) (Max):
- 2nA
- Crosstalk:
- -75dB @ 1MHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-PDIP
MAX4537CPE FAQ
1.How can I place an order for MAX4537CPE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4537CPE 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 MAX4537CPE reliable?
The price and inventory of MAX4537CPE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4537CPE is usually 5 days.
3.What payment methods are accepted for MAX4537CPE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4537CPE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4537CPE?
MAX4537CPE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4537CPE 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 MAX4537CPE?
For technical support, including MAX4537CPE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4537CPE requirements.
6.How does Aetrix verify that MAX4537CPE is sourced from the original manufacturer or authorized distributors?
All MAX4537CPE 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 MAX4537CPE meets industry standards.
7.What is the process for return or replacement of MAX4537CPE?
All MAX4537CPE units undergo pre-shipment inspection (PSI). If there is an issue with MAX4537CPE, 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 MAX4537CPE part is unused and in its original packaging.
Return procedure for MAX4537CPE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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