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Analog Devices Inc./Maxim Integrated MAX393C/D
- Part No.:
- MAX393C/D
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- -
- Datasheet:
-
MAX393C/D.pdf
- Description:
- INTEGRATED CIRCUIT
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Product details
Overview
MAX393C/D from Maxim Integrated is a precision quad SPST analog switch with two normally open (NO) and two normally closed (NC) channels, designed for ±5V or single +3V/+5V operation. It delivers 30Ω max on-resistance, <2Ω channel-to-channel RON match, 5pC max charge injection, and 100pA max leakage-enabling high-fidelity signal routing in battery-powered test equipment and ±5V DAC/ADC interfaces.
For engineers reviewing the MAX393C/D datasheet, MAX393C/D pinout, MAX393C/D application, or MAX393C/D equivalent, key selection criteria include guaranteed RON flatness (4Ω max), break-before-make timing (5–10ns), off-isolation (72dB), and ESD robustness (>2000V per Method 3015.7) in dual- or single-supply configurations.
Technical Context
The MAX393C/D implements four independent CMOS transmission gates with TTL/CMOS-compatible logic inputs and substrate-connected V+ for latch-up immunity. Its internal architecture ensures matched RON across all four switches under ±5V supplies (2Ω max mismatch) and maintains low charge injection (<5pC) via balanced gate drive.
It supports true rail-to-rail analog signal switching from V− to V+ (±5V or 0V to +5V), with guaranteed performance over 0°C to +70°C. The device's low 1µW power consumption and <2.5nA on-leakage at +85°C make it suitable for portable instrumentation requiring stable analog path integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance (RON) | 30Ω max at ±5V; ensures minimal signal attenuation and gain error in precision sensor or DAC output paths. |
| RON match | <2Ω max between channels; enables accurate differential signal routing and multiplexing without channel-dependent gain skew. |
| Charge injection | 5pC max; limits voltage glitch on sample-and-hold capacitors, preserving ADC acquisition accuracy. |
| Off-isolation | 72dB at 1MHz; suppresses crosstalk between active and inactive channels in multi-signal routing applications. |
| Supply range | Single +3V to +15V or dual ±3V to ±8V; supports flexible integration into mixed-voltage systems without level-shifting. |
| Leakage current | 100pA max COM on-leakage; prevents DC error accumulation in high-impedance sensor front-ends or integrator circuits. |
| Switching speed | tON ≤130ns, tOFF ≤75ns; enables fast channel reconfiguration in automated test equipment and real-time signal conditioning. |
Pinout & Package
Dice form factor: bare die, no package; intended for hybrid assembly or custom module integration. Requires external bonding and substrate biasing per Maxim's die handling guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 | Logic control input | Active-high TTL/CMOS-compatible signals enabling/disabling respective switch channels. |
| COM1–COM4 | Analog common terminal | Signal path midpoint; connects to load or source depending on NO/NC configuration of each channel. |
| NO1–NO4 / NC1–NC4 | Analog switch terminal | MAX393C/D uses pins 3,6,9,14 as NO1–NO4 for channels 1–4; pins 11,12,15,16 are NC1–NC4 - defines default open/closed state when IN = 0. |
| V+ | Positive supply | Bias for P-channel MOSFETs; substrate connection point - must be tied to most positive potential in system. |
| V− | Negative supply | Bias for N-channel MOSFETs; establishes lower rail for bipolar operation and defines analog signal floor. |
| GND | Reference ground | Logic reference and return path; separate from analog ground unless system design mandates common reference. |
| N.C. | No connection | Pin 12 (DIP/SO/TSSOP) or pin 10 (QFN) is unconnected internally - must be left floating or grounded per layout best practice. |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed RON flatness | 4Ω max over full signal range (±3V); minimizes THD and distortion in audio and video signal paths. |
| Bipolar + single-supply support | Operates from ±3V to ±8V or +3V to +15V; eliminates need for separate voltage translators in mixed-supply systems. |
| ESD protection | >2000V per Method 3015.7; withstands handling and board-level ESD events without functional degradation. |
| Low power consumption | <1µW quiescent; extends battery life in portable data loggers and handheld test instruments. |
| Break-before-make timing | 5–10ns delay; prevents momentary short-circuit between channels during switching transitions in critical analog routing. |
Applications
| Test Equipment Signal Routing | ±5V Precision DAC Interface |
|---|---|
|
Use Scenario: Automated test systems route multiple sensor outputs to shared ADC inputs using programmable analog switches. IC Role / Device Role / Timing Role: MAX393C/D acts as a low-distortion, low-leakage multiplexer with precise channel matching to maintain measurement repeatability. Use Value: 2Ω RON match and 72dB off-isolation ensure consistent gain scaling and minimal inter-channel interference across 16-bit ADC measurements. |
Use Scenario: Industrial DACs require clean, glitch-free switching between reference voltages or output buffers in ±5V control loops. IC Role / Device Role / Timing Role: MAX393C/D provides two NO and two NC paths to configure redundant or polarity-selectable output stages. Use Value: 5pC charge injection and rail-to-rail analog range preserve DAC output fidelity during dynamic range switching without post-calibration. |
| Battery-Powered Sample-and-Hold | Military Radio Audio Switching |
|
Use Scenario: Portable instrumentation captures transient analog waveforms using low-power S/H circuits powered by coin-cell batteries. IC Role / Device Role / Timing Role: MAX393C/D serves as the hold capacitor charging switch with ultra-low leakage and fast tON/tOFF. Use Value: 100pA max on-leakage at +85°C and 130ns turn-on time enable >10ms hold time and sub-μs acquisition windows in compact designs. |
Use Scenario: Secure military radios switch between encrypted audio sources, noise cancellation paths, and speaker outputs under harsh environmental conditions. IC Role / Device Role / Timing Role: MAX393C/D functions as a ruggedized analog crosspoint switch supporting wide temperature and supply tolerance. Use Value: Guaranteed operation from 0°C to +70°C, >2000V ESD rating, and ±5V compatibility ensure reliable audio path management in field-deployed units. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1414BRUZ | Higher RON (1.8Ω typical), but requires ≥±4.5V dual supply; no single +3V operation. | Better RON match (0.1Ω), yet lacks guaranteed charge injection spec below 5pC. | Prefer ADG1414BRUZ only when ultra-low RON and tight matching outweigh single-supply flexibility. |
| TS5A3157DCUR | Lower voltage rating (+5.5V max), 0.9Ω RON, but only rated for 0°C to +85°C and no ±5V support. | Optimized for consumer audio; lacks MIL-STD ESD rating and dual-supply capability. | Choose TS5A3157DCUR for cost-sensitive, single-supply consumer designs where ±5V operation is unnecessary. |
Compared with ADG1414BRUZ and TS5A3157DCUR, the MAX393C/D uniquely balances ±5V operation, 5pC charge injection guarantee, and 0°C to +70°C dice qualification - making it the only option qualified for embedded military and industrial analog routing where supply flexibility and signal integrity are co-constrained.
Availability
MAX393C/D is available at Aetrix Electronics and suitable for battery-operated systems, precision DAC/ADC interfaces, and military radio audio switching requiring stable component supply across extended production lifecycles.
Supply support for MAX393C/D 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.
The MAX391/MAX392/MAX393 family was engineered specifically for high-accuracy analog signal routing in test equipment and ±5V data conversion systems where leakage, RON matching, and charge injection directly impact measurement validity.
FAQ
What is the maximum analog signal range supported by the MAX393C/D?
The MAX393C/D supports rail-to-rail analog signals from V− to V+, enabling ±5V operation (V+ = +5V, V− = −5V) or 0V to +5V single-supply use. Under ±5V conditions, the full analog range spans −5V to +5V; under +5V single supply, it covers 0V to +5V. This range is guaranteed across the 0°C to +70°C operating temperature window specified for the MAX393C/D.
Does the MAX393C/D support break-before-make switching, and what is its timing specification?
Yes, the MAX393C/D guarantees break-before-make operation with a 5ns to 10ns delay (tD) between turn-off of one channel and turn-on of another. This specification applies specifically to the MAX393 variant and is tested under RL = 300Ω and CL = 35pF conditions at +25°C. The feature prevents momentary shorts in multi-channel routing applications such as analog crosspoints or relay replacements.
What is the meaning of "C/D" suffix in MAX393C/D, and how does it affect packaging?
The "C/D" suffix in MAX393C/D denotes the dice-only version - an unpackaged silicon die intended for hybrid assembly, custom module integration, or wafer-level packaging. It has no leadframe or molded package, and requires wire bonding to external pads. Unlike packaged variants (e.g., MAX393CSE), the C/D version omits plastic DIP, SO, TSSOP, or QFN packaging and carries no JEDEC-standard footprint.
How does the MAX393C/D achieve its low 5pC charge injection specification?
The MAX393C/D achieves ≤5pC charge injection through matched transistor geometry and balanced gate-drive architecture that cancels residual charge displacement during switching transitions. This is verified across temperature and supply conditions per Figure 4 in the datasheet, and guaranteed for both dual ±5V and single +5V operation - directly benefiting sample-and-hold circuits and precision DAC output switching where voltage glitches degrade accuracy.
Can the MAX393C/D operate with a +3.3V single supply, and what are the key trade-offs?
Yes, the MAX393C/D operates with +3.3V single supply (V+ = 3.0V to 3.6V, V− = 0V). At this voltage, RON increases to 83Ω–175Ω (vs. 30Ω max at ±5V), tON extends to 160–400ns, and tOFF reaches 40–125ns. However, charge injection remains ≤5pC, leakage stays ≤100pA, and logic compatibility is preserved - making it viable for low-voltage portable systems where signal integrity outweighs speed requirements.
MAX393C/D Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- -
- Number of Circuits:
- -
- On-State Resistance (Max):
- -
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- -
- -3db Bandwidth:
- -
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- -
- Current - Leakage (IS(off)) (Max):
- -
- Crosstalk:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX393C/D FAQ
1.How can I place an order for MAX393C/D through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX393C/D 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 MAX393C/D reliable?
The price and inventory of MAX393C/D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX393C/D is usually 5 days.
3.What payment methods are accepted for MAX393C/D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX393C/D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX393C/D?
MAX393C/D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX393C/D 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 MAX393C/D?
For technical support, including MAX393C/D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX393C/D requirements.
6.How does Aetrix verify that MAX393C/D is sourced from the original manufacturer or authorized distributors?
All MAX393C/D 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 MAX393C/D meets industry standards.
7.What is the process for return or replacement of MAX393C/D?
All MAX393C/D units undergo pre-shipment inspection (PSI). If there is an issue with MAX393C/D, 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 MAX393C/D part is unused and in its original packaging.
Return procedure for MAX393C/D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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