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Analog Devices Inc./Maxim Integrated MAX4690EWE+
- Part No.:
- MAX4690EWE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX4690EWE+.pdf
- Description:
- IC SW SPST-NOX2 1.25OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,785
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Product details
Overview
MAX4690EWE+ from Maxim Integrated is a dual SPST normally open (NO) CMOS analog switch optimized for rail-to-rail signal routing in precision instrumentation and automated test equipment. It delivers 1.25Ω max on-resistance, 0.3Ω max RON match between channels, and 5nA max off-leakage at +85°C, enabling low-distortion switching of ±15V analog signals in data acquisition systems.
For engineers reviewing the MAX4690EWE+ datasheet, MAX4690EWE+ pinout, MAX4690EWE+ application, or MAX4690EWE+ equivalent, key selection criteria include guaranteed NO configuration, wide ±4.5V to ±20V dual-supply operation, TTL/CMOS-compatible logic inputs with separate VL pin, and ESD robustness exceeding 2kV per Method 3015.7.
Technical Context
The MAX4690EWE+ implements two independent normally open analog switches using high-voltage CMOS process technology, supporting true rail-to-rail signal handling across its full ±4.5V to ±20V dual-supply range. Its matched on-resistance (≤0.3Ω) and flat on-resistance (≤0.3Ω over signal range) ensure minimal gain error and channel-to-channel crosstalk below –65dB.
Switch control uses noninverting logic inputs referenced to a dedicated VL pin, decoupling logic-level compatibility from analog supply rails. Dynamic performance includes 400ns max turn-on time, 300ns max turn-off time, and 550pC max charge injection-critical for sample-and-hold and multiplexed ADC front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 1.25Ω max - ensures <0.01% gain error in 12-bit precision signal paths with 10kΩ source impedance |
| RON Match | 0.3Ω max - guarantees ≤0.003% differential gain mismatch between channels in dual-path instrumentation |
| Off-Leakage Current | 5nA max at +85°C - preserves >16-bit accuracy in high-impedance sensor interfaces |
| Supply Range | ±4.5V to ±20V dual or +4.5V to +36V single - supports industrial ±15V and automotive 24V systems |
| Logic Compatibility | TTL/CMOS via dedicated VL pin - enables direct interfacing with 3.3V or 5V microcontrollers regardless of analog rail voltage |
| ESD Protection | >2kV HBM - eliminates need for external protection diodes in board-level ESD-prone environments |
| Crosstalk | –65dB at 1MHz - prevents signal coupling between switched channels in multi-channel DAQ |
Pinout & Package
MAX4690EWE+ is housed in a 16-pin Wide SO (SOIC-W) package with 0.3" body width and standard 1.27mm pitch. Pin 1 is located at the top-left corner adjacent to the index mark.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 6, 8, 10, 15 | N.C. | No internal connection - must be tied to GND or low-impedance node to maximize off-isolation |
| 2, 7 | GND | Analog and digital ground reference - requires low-inductance connection to minimize switching noise |
| 4 | V− | Negative analog supply - connect to GND for single-supply operation; supports ±20V range |
| 5 | COM1 | Channel 1 common terminal - bidirectional rail-to-rail signal path with 1.25Ω RON |
| 9, 16 | NO1, NO2 | Normally open switch terminals - open-circuit when INx = 0; closed when INx = 1 |
| 11, 14 | COM2, COM1 | Channel 2 common terminal - electrically isolated from COM1; identical RON specs |
| 12 | VL | Logic supply input - sets logic threshold independently of V+/V−; accepts 2.7V to 5.5V |
| 13 | V+ | Positive analog supply - supports up to +36V; must be powered before V− and logic inputs |
Key Features
| Feature | Design Value |
|---|---|
| Dual SPST Normally Open Configuration | Guaranteed open-circuit state at power-up and logic-low control - prevents unintended signal path closure in safety-critical systems |
| Rail-to-Rail Signal Handling | Supports analog signals from V− to V+ without clipping - enables full utilization of ±15V op-amp output ranges |
| Guaranteed RON Flatness | ≤0.3Ω variation across entire signal range - eliminates harmonic distortion in audio and sensor signal chains |
| Break-Before-Make Exclusion | Not implemented - MAX4690EWE+ is NO-only; avoids timing hazards present in break-before-make architectures |
| Separate Logic Supply (VL) | Enables 3.3V FPGA control of ±15V analog paths without level-shifting circuitry - reduces BOM count and layout complexity |
Applications
| Reed Relay Replacement | Data Acquisition Systems |
|---|---|
Use Scenario: Replacing electromechanical relays in automated test fixtures requiring >1M cycle lifetime and sub-millisecond switching. IC Role / Device Role / Timing Role: Dual SPST NO switch providing solid-state isolation between DUT and measurement instruments. Use Value: Eliminates relay wear-out failure modes while maintaining <1.25Ω contact resistance and <5nA leakage at elevated temperatures. |
Use Scenario: Multiplexing 16-channel sensor inputs into a single high-resolution ADC in industrial monitoring systems. IC Role / Device Role / Timing Role: Precision analog switch front-end ensuring matched channel gain and minimal crosstalk between adjacent inputs. Use Value: 0.3Ω RON match and –65dB crosstalk preserve 16-bit ENOB across all channels without calibration. |
| Test Equipment Signal Routing | Communication System Channel Selection |
Use Scenario: Configuring signal paths in benchtop oscilloscopes and spectrum analyzers where low distortion and fast settling are mandatory. IC Role / Device Role / Timing Role: Low-charge-injection (550pC max) switch enabling accurate sampling of transient waveforms without pedestal error. Use Value: 400ns tON/300ns tOFF and rail-to-rail operation support 10MS/s multiplexed acquisition with <0.1% settling. |
Use Scenario: Selecting between RF front-end filters and amplifiers in multi-band base station transceivers. IC Role / Device Role / Timing Role: High-voltage analog switch handling ±12V bias control signals in GaN PA modules. Use Value: ±20V dual-supply capability and >2kV ESD rating ensure reliability in noisy RF subsystems without external protection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1419BRUZ | Single SPDT, 1.3Ω RON, ±15V supply, no VL pin - requires level-shifting for 3.3V logic control | SPDT topology enables signal inversion; lacks dual independent SPST flexibility of MAX4690EWE+ | Select when SPDT function is required and logic/analog rail co-location is feasible |
| TS5A3157DCKR | Single SPDT, 0.75Ω RON, +1.65V to +5.5V single supply only - incompatible with ±15V systems | Optimized for portable battery-powered devices; cannot replace MAX4690EWE+ in industrial dual-supply designs | Select only for low-voltage, single-supply consumer applications where rail-to-rail analog range is not required |
Compared with ADG1419BRUZ and TS5A3157DCKR, MAX4690EWE+ uniquely combines dual independent NO SPST topology, ±20V dual-supply operation, and logic-level independence via VL pin-making it irreplaceable in high-voltage, multi-channel industrial signal routing where channel isolation and supply flexibility are critical.
Availability
MAX4690EWE+ is available at Aetrix Electronics and suitable for reed relay replacement, data acquisition systems, test equipment signal routing, communication system channel selection, and sample-and-hold circuits requiring stable component supply across extended temperature ranges.
Supply support for MAX4690EWE+ 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 high-performance analog and mixed-signal ICs for industrial, communications, and computing applications, with expertise in precision switching, power management, and interface solutions.
The MAX4690EWE+ belongs to Maxim's precision analog switch family engineered specifically for high-reliability, low-distortion signal routing in automated test equipment and industrial data acquisition-where rail-to-rail operation, matched on-resistance, and robust ESD tolerance are non-negotiable.
FAQ
What is the maximum supply voltage rating for MAX4690EWE+?
The MAX4690EWE+ supports absolute maximum ratings of –0.3V to +44V on V+ relative to GND and +0.3V to –44V on V– relative to GND. For reliable operation, use within the specified ranges: ±4.5V to ±20V dual supply or +4.5V to +36V single supply. Exceeding these limits risks permanent damage, as confirmed in the Absolute Maximum Ratings table of the official datasheet.
Does MAX4690EWE+ support rail-to-rail analog signal switching?
Yes, MAX4690EWE+ fully supports rail-to-rail analog signal handling - signals from V– to V+ pass through the switch with minimal distortion. This capability is explicitly guaranteed in the General Description and Electrical Characteristics sections, enabling use with op-amps and sensors operating at full supply rails without signal clipping.
What is the function of the VL pin on MAX4690EWE+?
The VL pin on MAX4690EWE+ provides an independent logic supply reference, allowing TTL/CMOS-compatible control inputs (IN1, IN2) regardless of V+ and V– voltages. It accepts 2.7V to 5.5V and decouples logic threshold from analog rails - a key feature confirmed in the Pin Description and Features sections of the datasheet.
Is MAX4690EWE+ pin-compatible with MAX4680EWE+ or MAX4700EWE+?
No, MAX4690EWE+ is not pin-compatible with MAX4680EWE+ or MAX4700EWE+. While all three share the same 16-pin Wide SO package and pinout grid, their terminal functions differ: MAX4690EWE+ uses pins 9 and 16 as NO1/NO2, whereas MAX4680EWE+ assigns them as NC1/NC2 and MAX4700EWE+ uses one as NO1 and the other as NC1. This functional divergence is clearly shown in the Pin Configurations diagrams.
What is the guaranteed on-resistance match between channels for MAX4690EWE+?
The MAX4690EWE+ guarantees an on-resistance match of ≤0.3Ω between its two channels (ΔRON = RON(max) – RON(min)), as specified in both the General Description and Electrical Characteristics tables. This tight matching ensures consistent gain and minimal differential errors in dual-path signal conditioning applications.
MAX4690EWE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 1.25Ohm
- Channel-to-Channel Matching (ΔRon):
- 90mOhm
- Voltage - Supply, Single (V+):
- 4.5V ~ 36V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 275ns, 175ns
- -3db Bandwidth:
- -
- Charge Injection:
- 550pC
- Channel Capacitance (CS(off), CD(off)):
- 115pF, 115pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -65dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MAX4690EWE+ FAQ
1.How can I place an order for MAX4690EWE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4690EWE+ 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 MAX4690EWE+ reliable?
The price and inventory of MAX4690EWE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4690EWE+ is usually 5 days.
3.What payment methods are accepted for MAX4690EWE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4690EWE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4690EWE+?
MAX4690EWE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4690EWE+ 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 MAX4690EWE+?
For technical support, including MAX4690EWE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4690EWE+ requirements.
6.How does Aetrix verify that MAX4690EWE+ is sourced from the original manufacturer or authorized distributors?
All MAX4690EWE+ 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 MAX4690EWE+ meets industry standards.
7.What is the process for return or replacement of MAX4690EWE+?
All MAX4690EWE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4690EWE+, 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 MAX4690EWE+ part is unused and in its original packaging.
Return procedure for MAX4690EWE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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