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Analog Devices Inc./Maxim Integrated MAX4537CEE
- Part No.:
- MAX4537CEE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
MAX4537CEE.pdf
- Description:
- IC SW SPST-NCX4 100OHM 16QSOP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MAX4537CEE from Maxim Integrated is a quad, low-voltage, normally closed (NC) SPST analog switch with common enable, designed for rail-to-rail signal routing in battery-powered and portable systems. It operates from +2V to +12V single supply or ±2V to ±6V dual supplies, delivers 200Ω max on-resistance, 10Ω max on-resistance flatness, and 1nA max off-leakage at +25°C, enabling precision low-power signal switching in audio routing and data acquisition.
For engineers reviewing the MAX4537CEE datasheet, MAX4537CEE pinout, MAX4537CEE application, or MAX4537CEE equivalent, this page provides verified electrical specs, QSOP-16 package details, truth-table–validated NC-switch behavior, TTL/CMOS-compatible logic thresholds, and real-world leakage/timing performance across ±5V, +5V, and +3V supply conditions.
Technical Context
The MAX4537CEE uses complementary CMOS switch architecture with independent N- and P-channel MOSFETs per channel, driven by level-translated logic to support rail-to-rail analog signals up to V+ and down to V−. Its internal logic-level translators isolate digital control (V+, GND) from analog supplies (V+, V−), ensuring stable thresholds across supply variations.
All four NC switches share a common EN pin and are individually controlled via IN1–IN4; when EN = low, switches close (conduct); when EN = high, all open (disconnect). The device exhibits matched on-resistance (≤6Ω max ΔRON) and flat on-resistance (≤10Ω max variation over full signal range), critical for channel-to-channel consistency in multiplexed sensor or audio paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | +2V to +12V single supply or ±2V to ±6V dual supply - supports legacy ±5V test gear and modern 3.3V/5V portable systems without level shifters |
| On-Resistance (RON) | 200Ω max at +4.5V single supply - ensures minimal signal attenuation in low-current analog paths (e.g., sensor front-ends) |
| On-Resistance Flatness | 10Ω max over full signal range - maintains consistent gain and linearity across rail-to-rail input voltages |
| Off-Leakage Current | 1nA max at +25°C, 10nA max at +85°C - preserves accuracy in high-impedance measurement circuits (e.g., pH sensors, thermocouples) |
| Switching Speed | tON = 100ns, tOFF = 80ns at ±4.5V - enables reliable operation in <10MHz multiplexed data acquisition and audio sample routing |
| Logic Compatibility | 0.8V to 2.4V input thresholds - guarantees robust TTL/CMOS interoperability with microcontrollers and FPGAs across temperature |
| ESD Protection | >2kV per Method 3015.7 - withstands handling and board-level ESD events in portable equipment assembly |
Pinout & Package
MAX4537CEE is housed in a 16-pin QSOP (Quarter Small Outline Package) with 0.150-inch body width, 0.025-inch lead pitch, and gull-wing leads - optimized for high-density PCB layouts in space-constrained portable and avionics applications.
| 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 or source depending on system topology |
| 2, 3, 11, 12 (NC1–NC4) | Normally closed analog switch terminals | Conduct when INx = low and EN = low; open only when either INx or EN is high - default-closed safety path |
| 5, 6, 14, 15 (IN1–IN4) | Individual switch control inputs | Active-low logic; each independently enables/disables its associated NC switch when EN = low |
| 7 (EN) | Global enable/disable input | Active-high; forces all switches open (high-Z) regardless of INx states - system-level isolation control |
| 8 (GND) | Digital ground reference | Reference for logic inputs only; no analog current return path - eliminates ground-loop coupling |
| 9 (V−) | Negative analog supply | Must be connected to GND for single-supply operation; sets lower bound of analog signal range |
| 16 (V+) | Positive analog/digital supply | Powers both analog switches and internal logic; internally tied to substrate for latch-up immunity |
Key Features
| Feature | Design Value |
|---|---|
| Quad NC SPST configuration | Provides fail-safe closed-path default state - critical for safety-critical signal monitoring (e.g., emergency cutoff detection) |
| Rail-to-rail analog signal handling | Supports input signals from V− to V+ without clipping - enables direct interfacing with op-amp outputs and ADC inputs |
| Matched on-resistance (≤6Ω) | Ensures ≤0.5% gain error between channels in multi-channel instrumentation - eliminates calibration drift across channels |
| Charge injection ≤5pC | Minimizes voltage glitch on high-impedance nodes (e.g., sample-and-hold capacitors), preserving 12-bit+ measurement integrity |
| Break-before-make timing (MAX4538 only) | Not applicable - MAX4537CEE is NC-only; no B-B-M transition required, eliminating signal interruption during switching |
Applications
| Audio-Signal Routing | Low-Voltage Data Acquisition |
|---|---|
Use Scenario: Selecting between multiple microphone inputs or headphone outputs in portable audio devices. IC Role / Device Role / Timing Role: Quad NC analog switch providing default-connected audio path until reconfigured by host MCU. Use Value: Eliminates need for external pull-up/down resistors; 1nA off-leakage prevents audible pop/click during mute transitions. |
Use Scenario: Multiplexing thermistor, RTD, or strain gauge signals into a shared ADC channel in handheld test meters. IC Role / Device Role / Timing Role: Precision analog switch enabling sequential sensor sampling with matched channel resistance and minimal offset error. Use Value: 10Ω on-resistance flatness ensures <0.02% gain nonlinearity across full ±2.5V sensor range, supporting 16-bit resolution. |
| Battery-Operated Equipment | Avionics Signal Conditioning |
Use Scenario: Power-gating unused analog subsystems (e.g., GPS RF front-end, IMU interface) in UAV flight controllers. IC Role / Device Role / Timing Role: Low-quiescent-current analog isolation switch activated only during active measurement cycles. Use Value: <1µW total power consumption extends battery life in sleep mode; ±2V minimum supply allows operation down to 2.4V Li-ion cell voltage. |
Use Scenario: Isolating redundant flight-control sensor signals (e.g., airspeed, angle-of-attack) before voting logic in certified avionics units. IC Role / Device Role / Timing Role: Fail-safe NC switch ensuring signal continuity unless commanded open by health-monitoring processor. Use Value: >2kV ESD rating meets DO-160 Section 22 Level 3 requirements; 10nA max off-leakage at +85°C maintains signal fidelity in cockpit environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4536CEE | Quad NO (normally open) configuration instead of NC; identical pinout, supply, and RON specs | Suitable where default-open safety state is required (e.g., disabling power to actuators on startup) | Select MAX4536CEE when system requires de-energized-by-default behavior; MAX4537CEE preferred for energized-by-default monitoring paths |
| ADG1414BRUZ | Quad SPST, NO/NC configurable per channel; higher RON (1.8Ω typ), wider supply (±15V), larger TSSOP-16 package | Used in industrial PLC I/O modules requiring higher voltage tolerance and channel independence | Choose ADG1414BRUZ only if ±15V operation or per-channel NO/NC flexibility is mandatory; MAX4537CEE offers better size/power fit for portable designs |
Compared with MAX4536CEE and ADG1414BRUZ, the MAX4537CEE uniquely combines NC default state, QSOP-16 footprint, sub-200Ω RON at +3V, and <1µW quiescent power - making it optimal for compact, battery-sensitive systems where continuous signal path integrity is required until explicit disconnection.
Availability
MAX4537CEE is available at Aetrix Electronics and suitable for battery-operated equipment, low-voltage data acquisition, and avionics signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4537CEE 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 demanding industrial, automotive, and communications applications, with emphasis on low-power, high-reliability solutions.
The MAX4537CEE belongs to Maxim's low-voltage analog switch product line, engineered specifically for rail-to-rail signal routing in portable, medical, and test equipment where NC default behavior, minimal leakage, and small-footprint packaging are essential.
FAQ
What is the default switch state of the MAX4537CEE?
The MAX4537CEE features four normally closed (NC) SPST switches. When both EN = low and INx = low, each switch conducts; it opens only when either EN is high or its corresponding INx is high. This default-closed behavior ensures signal continuity during power-up or MCU reset, making MAX4537CEE ideal for safety-critical monitoring paths where uninterrupted signal flow is required until explicitly disabled.
Can the MAX4537CEE operate from a +3.3V single supply?
Yes, the MAX4537CEE is fully specified for +2.0V to +12V single-supply operation. At +3.3V, typical on-resistance is ~600Ω (max), turn-on time is ≤250ns, and logic thresholds remain compatible (VINL ≤ 0.9V, VINH ≥ 2.0V). This makes MAX4537CEE suitable for modern 3.3V microcontroller interfaces without level translation, though designers should verify RON impact on signal accuracy in their specific gain chain.
Does the MAX4537CEE support bipolar analog signals?
Yes - when powered from dual supplies (e.g., ±5V), the MAX4537CEE supports true bipolar analog signals ranging from V− to V+, i.e., −5V to +5V. Its rail-to-rail capability and matched on-resistance ensure symmetric distortion and gain error across the full range, enabling accurate AC-coupled audio or sensor signal routing without DC biasing constraints. This behavior is confirmed in the ±5V electrical characteristics table and TOC-02 curves.
How does the MAX4537CEE handle ESD events on analog pins?
The MAX4537CEE integrates >2kV ESD protection per Method 3015.7 on all analog pins (COMx, NCx), achieved via internal diodes clamped to V+ and V−. During an ESD event, current shunts through these diodes rather than the switch channel, preventing gate oxide damage. Designers must ensure V+ and V− remain within absolute maximum ratings (−13V to +13V differential) during transients - a requirement explicitly validated in Maxim's qualification testing for MAX4537CEE.
Is the MAX4537CEE pin-compatible with the 74HC4316?
Yes, the MAX4537CEE is explicitly designed as a pin-compatible replacement for the industry-standard 74HC4316, sharing identical QSOP-16 pinout, logic thresholds, and functional block diagram. However, unlike the 74HC4316, MAX4537CEE offers NC switching action, rail-to-rail analog range, and significantly lower leakage (<10nA vs. ~100nA), making it a direct drop-in upgrade for systems requiring improved analog fidelity and default-closed safety behavior.
MAX4537CEE 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:
- Surface Mount
- Supplier Device Package:
- 16-QSOP
MAX4537CEE FAQ
1.How can I place an order for MAX4537CEE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4537CEE 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 MAX4537CEE reliable?
The price and inventory of MAX4537CEE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4537CEE is usually 5 days.
3.What payment methods are accepted for MAX4537CEE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4537CEE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4537CEE?
MAX4537CEE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4537CEE 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 MAX4537CEE?
For technical support, including MAX4537CEE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4537CEE requirements.
6.How does Aetrix verify that MAX4537CEE is sourced from the original manufacturer or authorized distributors?
All MAX4537CEE 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 MAX4537CEE meets industry standards.
7.What is the process for return or replacement of MAX4537CEE?
All MAX4537CEE units undergo pre-shipment inspection (PSI). If there is an issue with MAX4537CEE, 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 MAX4537CEE part is unused and in its original packaging.
Return procedure for MAX4537CEE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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