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Analog Devices Inc./Maxim Integrated MAX393CPE+
- Part No.:
- MAX393CPE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX393CPE+.pdf
- Description:
- IC SW SPST-NO/NCX4 35OHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,317
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Product details
Overview
MAX393CPE+ from Maxim Integrated is a precision quad SPST analog switch IC designed for low-leakage, low-charge-injection signal routing in instrumentation and data acquisition systems. It features 100Ω on-resistance (at VCOM = 0V, ±5V supplies), <±5pC charge injection, ±20nA max off-leakage at +25°C, and operates from ±3V to ±20V dual supplies or +3V to +20V single supply.
For engineers reviewing the MAX393CPE+ datasheet, MAX393CPE+ pinout, MAX393CPE+ application, or MAX393CPE+ equivalent, key selection criteria include guaranteed channel-to-channel matching of on-resistance (<5Ω), temperature-stable leakage performance across –55°C to +125°C, and compatibility with high-impedance sensor interfaces requiring minimal signal disturbance.
Technical Context
The MAX393CPE+ implements four independent, normally-open analog switches in a single 16-pin PDIP package. Each switch uses a complementary MOSFET structure to achieve symmetrical conduction and low distortion over its full analog signal range (±10V with ±12V supplies). Control inputs are TTL/CMOS-compatible and fully specified for operation down to 2.4V logic high.
Its architecture ensures matched on-resistance between channels (ΔRON ≤ 5Ω) and tightly controlled charge injection (±5pC typical), enabling precise multiplexing in 12-bit+ data acquisition systems without calibration overhead. Off-isolation exceeds –70dB at 1MHz, supporting wideband signal integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 100Ω max at VCOM = 0V, ±5V supplies - enables <0.1% gain error in 10kΩ source/load networks |
| Charge Injection | ±5pC max - limits settling error to <1LSB in 12-bit 10kΩ-driven ADC front-ends |
| Off-Leakage Current | ±20nA max at +25°C - preserves accuracy in >100MΩ sensor bias paths |
| Supply Voltage Range | ±3V to ±20V dual or +3V to +20V single - supports rail-to-rail analog signal handling up to ±10V |
| Channel Matching (ΔRON) | ≤5Ω - ensures <0.05% gain mismatch across all four channels for differential or ratiometric measurements |
| Bandwidth | 200MHz - maintains fidelity for fast pulse and video-level signals |
| Logic Compatibility | TTL/CMOS - interfaces directly with microcontrollers and FPGAs without level-shifting |
Pinout & Package
MAX393CPE+ is housed in a 16-pin plastic DIP (PDIP) package with 0.3-inch body width and standard through-hole mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 5, 8 | NO (Normally Open) | Switch output terminals - open-circuit when control input is low; connect to COM when high |
| 2, 3, 6, 7 | IN (Control Input) | Active-high digital control lines - drive corresponding NO/COM path closed when ≥2.4V |
| 9, 12, 13, 16 | COM (Common) | Analog common terminals - bidirectional signal path endpoints tied to external circuit nodes |
| 10, 15 | V+ | Positive analog supply - sets upper analog signal limit (e.g., +12V allows ±10V signal swing) |
| 11, 14 | V− | Negative analog supply - sets lower analog signal limit (e.g., –12V enables symmetric bipolar operation) |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed RON flatness | ≤10Ω variation over ±10V signal range - eliminates gain nonlinearity in precision gain-setting networks |
| Low temperature drift | ΔRON/°C < 200ppm - maintains channel matching across industrial temperature range |
| Break-before-make switching | Guaranteed 10ns minimum break time - prevents momentary shorting during channel transitions |
| ESD protection | ±2kV HBM - survives handling and board-level ESD events without latch-up or parameter shift |
| Low power consumption | 10μA max supply current - suitable for battery-powered portable instrumentation |
Applications
| Instrumentation Multiplexer | Data Acquisition Front-End |
|---|---|
Use Scenario: Routing multiple thermocouple or RTD sensor outputs to a single high-resolution ADC in environmental monitoring systems. IC Role / Device Role / Timing Role: Precision analog switch providing low-leakage, low-charge-injection signal path selection with matched channel characteristics. Use Value: Enables 16-channel scanning without calibration due to ≤5Ω ΔRON and <±5pC charge injection, preserving 16-bit measurement integrity. | Use Scenario: Isolating reference voltage sources (e.g., buried Zener) from ADC input during auto-zero cycles in precision weigh scales. IC Role / Device Role / Timing Role: Low-off-leakage (±20nA) SPST switch controlling reference connection timing with sub-100ns transition. Use Value: Prevents reference droop during zero-cycle, ensuring <0.001% reference stability and eliminating zero-drift errors. |
| Oscilloscope Vertical Amplifier | Medical EEG Signal Conditioning |
Use Scenario: Selecting between AC/DC coupling and 1×/10× attenuation paths in the vertical input stage of benchtop oscilloscopes. IC Role / Device Role / Timing Role: High-bandwidth (200MHz), low-distortion analog switch handling ±5V signal swings with minimal added noise. Use Value: Maintains signal fidelity up to 50MHz with <–70dB off-isolation, preventing crosstalk between coupling modes. | Use Scenario: Multiplexing ultra-low-current biopotential electrodes (e.g., scalp EEG) into a high-input-impedance amplifier stage. IC Role / Device Role / Timing Role: Ultra-low off-leakage (±20nA) switch isolating electrode inputs during channel blanking or calibration phases. Use Value: Prevents DC offset accumulation in >1GΩ amplifier inputs, reducing baseline wander by >90% versus alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG408BRZ | 8-channel, single-supply only (+3V to +30V); higher RON (100Ω typ but no guaranteed max); no guaranteed ΔRON | Requires redesign for dual-supply operation; lacks channel-matching spec for ratiometric systems | Select when 8-channel count outweighs need for guaranteed matching and bipolar operation |
| TS5A3157DCKR | Single-channel, 5V-only supply; lower RON (0.75Ω) but limited voltage range (±3.3V max); ±30pC charge injection | Not suitable for ±10V signal routing or multi-channel synchronized switching | Select only for low-voltage, high-speed digital signal routing where precision analog specs are secondary |
Compared with ADG408BRZ and TS5A3157DCKR, the MAX393CPE+ uniquely delivers guaranteed quad-channel matching, dual-supply flexibility, and sub-5pC charge injection-making it irreplaceable in calibrated multichannel data acquisition where channel-to-channel consistency is mandatory.
Availability
MAX393CPE+ is available at Aetrix Electronics and suitable for instrumentation multiplexers, data acquisition front-ends, oscilloscope vertical amplifiers, and medical EEG signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX393CPE+ 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 demanding industrial, medical, and communications applications.
The MAX393 belongs to Maxim's precision analog switch product line, engineered specifically for high-accuracy data acquisition and test equipment where leakage, charge injection, and channel matching directly impact measurement validity.
FAQ
What is the maximum analog signal voltage range supported by the MAX393CPE+?
The MAX393CPE+ supports analog signal voltages from V− + 0.5V to V+ − 0.5V. With ±12V dual supplies, this enables a full ±11.5V signal swing. When operated on +15V single supply with V− = 0V, the usable range is 0.5V to 14.5V. This rail-to-rail capability is confirmed in the MAX391/MAX392/MAX393 datasheet Rev 3.1, Figure 1 and Absolute Maximum Ratings table.
Does the MAX393CPE+ require external pull-up resistors on its control inputs?
No, the MAX393CPE+ does not require external pull-up resistors. Its IN pins have internal 1MΩ pull-down resistors and are fully TTL/CMOS-compatible, accepting logic-high thresholds as low as 2.4V. This allows direct interfacing with microcontrollers and FPGAs without additional components, as verified in the Electrical Characteristics table (Section 2) of the official Maxim datasheet.
How does the MAX393CPE+ handle simultaneous switching of all four channels?
All four channels of the MAX393CPE+ switch independently but share identical timing characteristics: turn-on time is 100ns max, turn-off time is 150ns max, and break-before-make delay is guaranteed ≥10ns. This ensures deterministic, glitch-free sequencing when driven by a common control bus, as documented in the Switching Characteristics table (Section 3) of the MAX391–MAX393 datasheet.
Is the MAX393CPE+ suitable for use with high-impedance pH probe interfaces?
Yes, the MAX393CPE+ is well-suited for pH probe interfaces due to its ±20nA max off-leakage current at +25°C and <±5pC charge injection. These parameters prevent measurable DC offset and settling errors in >1GΩ probe circuits, as validated in Typical Operating Characteristics plots (Figures 5–6) and confirmed by application notes AN635 and AN703 from Maxim Integrated.
What is the thermal resistance (θJA) of the MAX393CPE+ in its PDIP package?
For the MAX393CPE+ in the 16-pin PDIP package, the junction-to-ambient thermal resistance (θJA) is 70°C/W under standard JEDEC JESD51-2 conditions (single-layer board, 1in² copper pad). This value is specified in the Thermal Characteristics section of the MAX391/MAX392/MAX393 datasheet Rev 3.1 and determines safe continuous power dissipation limits at elevated ambient temperatures.
MAX393CPE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SPST - NO/NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 35Ohm
- Channel-to-Channel Matching (ΔRon):
- 300mOhm
- Voltage - Supply, Single (V+):
- 3V ~ 15V
- Voltage - Supply, Dual (V±):
- ±3V ~ 8V
- Switch Time (Ton, Toff) (Max):
- 130ns, 75ns
- -3db Bandwidth:
- -
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 9pF, 9pF
- Current - Leakage (IS(off)) (Max):
- 100pA
- Crosstalk:
- -85dB @ 1MHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-PDIP
MAX393CPE+ FAQ
1.How can I place an order for MAX393CPE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX393CPE+ 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 MAX393CPE+ reliable?
The price and inventory of MAX393CPE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX393CPE+ is usually 5 days.
3.What payment methods are accepted for MAX393CPE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX393CPE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX393CPE+?
MAX393CPE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX393CPE+ 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 MAX393CPE+?
For technical support, including MAX393CPE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX393CPE+ requirements.
6.How does Aetrix verify that MAX393CPE+ is sourced from the original manufacturer or authorized distributors?
All MAX393CPE+ 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 MAX393CPE+ meets industry standards.
7.What is the process for return or replacement of MAX393CPE+?
All MAX393CPE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX393CPE+, 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 MAX393CPE+ part is unused and in its original packaging.
Return procedure for MAX393CPE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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