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Analog Devices Inc./Maxim Integrated MAX391CSE+TG002
- Part No.:
- MAX391CSE+TG002
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- -
- Datasheet:
-
MAX391CSE+TG002.pdf
- Description:
- INTEGRATED CIRCUIT
- Quantity:
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Inventory:3,889
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Product details
Overview
MAX391CSE+TG002 from Maxim Integrated is a precision quad SPST analog switch with four normally closed (NC) channels, designed for low-leakage signal routing in ±5V or single +3V/+5V systems. It delivers 30Ω max on-resistance, <2Ω channel-to-channel RON match, 5pC max charge injection, and operates with <1µW power consumption-ideal for battery-powered sample-and-hold circuits and ±5V DAC/ADC interfaces.
For engineers reviewing the MAX391CSE+TG002 datasheet, MAX391CSE+TG002 pinout, MAX391CSE+TG002 application, or MAX391CSE+TG002 equivalent, key selection criteria include guaranteed RON flatness (≤4Ω), ESD robustness (>2000V), TTL/CMOS logic compatibility, and dual-supply operation down to ±3V-critical for precision analog multiplexing in guidance systems and test equipment.
Technical Context
The MAX391CSE+TG002 implements four independent NC switches using matched CMOS transmission gates, with substrate tied to V+. Its architecture ensures consistent on-resistance across all channels and minimal signal distortion over the full analog range (V− to V+).
It supports both bipolar (±3V to ±8V) and single-supply (3V–15V) operation, with guaranteed performance at ±5V (30Ω RON, 4Ω flatness) and +5V (60Ω RON, 6Ω flatness). Logic inputs accept TTL/CMOS thresholds, and internal clamping diodes protect against overvoltage on analog terminals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 30Ω max at ±5V supplies - ensures minimal signal attenuation and gain error in precision analog paths |
| RON Match | <2Ω max between channels - enables accurate differential or ratiometric measurements without calibration |
| Charge Injection | 5pC max - limits voltage glitch on sampled nodes, critical for high-resolution ADC front-ends |
| Off-Leakage Current | 100pA max at +85°C - preserves signal integrity in high-impedance sensor interfaces and long-hold sample-and-hold |
| Supply Range | Single: +3V to +15V; Dual: ±3V to ±8V - supports legacy ±5V systems and modern low-voltage portable designs |
| ESD Rating | >2000V per Method 3015.7 - reduces handling sensitivity and improves board-level reliability in manufacturing |
| Power Consumption | <1µW - enables always-on switching in energy-constrained battery applications |
Pinout & Package
MAX391CSE+TG002 is housed in a 16-pin narrow SOIC (S16-2) package, 3.9mm wide, with gull-wing leads and standard JEDEC MS-012 footprint. Pin 1 marked by notch or dot; exposed pad not present (non-QFN variant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 16, 9, 8 | IN1–IN4 | Logic control inputs - active-high enables NC path; inverted logic relative to MAX392 |
| 2, 15, 10, 7 | COM1–COM4 | Analog common terminals - connect to signal source or load; bidirectional current flow |
| 3, 14, 11, 6 | NC1–NC4 | Normally closed analog terminals - conduct to COM when IN = low; open when IN = high |
| 4 | V− | Negative supply rail - must be connected before logic inputs; substrate reference for analog switches |
| 5 | GND | Digital ground - separate from analog return; decoupling required near V+ and V− pins |
| 12 | N.C. | No internal connection - leave unconnected; no electrical function or thermal role |
| 13 | V+ | Positive supply rail - tied to substrate; must be powered before V− for safe sequencing |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed RON flatness | ≤4Ω over full signal range (V− to V+) at ±5V - maintains linearity in audio and instrumentation amplifiers |
| Low temperature drift leakage | <2.5nA at +85°C - sustains accuracy in automotive and industrial environments without derating |
| TTL/CMOS logic compatibility | VINH = 2.4V, VINL = 0.8V - interoperates directly with microcontrollers and FPGAs without level shifters |
| Break-before-make timing | Not applicable - MAX391 is SPST NC only; no inter-channel switching overlap or timing hazard |
| Signal range coverage | V− to V+ (e.g., −5V to +5V) - supports true bipolar signal routing without clipping or distortion |
Applications
| Battery-Powered Data Loggers | ±5V Precision DAC Output Switching |
|---|---|
Use Scenario: Multiplexing multiple sensor outputs into a shared low-power ADC in remote environmental monitors. IC Role / Device Role / Timing Role: Quad NC switch routes analog sensor signals (thermocouple, RTD, pH) to ADC input while maintaining high-Z isolation between channels. Use Value: 100pA max off-leakage prevents cross-talk-induced offset errors; 1µW quiescent power extends battery life beyond 5 years. |
Use Scenario: Selecting between multiple calibrated reference voltages or output channels in industrial DAC-based control systems. IC Role / Device Role / Timing Role: Isolates individual DAC outputs during reconfiguration to prevent bus contention and output short-circuits. Use Value: 30Ω RON and <2Ω match ensure consistent gain scaling across channels; 5pC charge injection avoids step errors in closed-loop servo tuning. |
| Avionics Guidance Signal Routing | Automated Test Equipment (ATE) Multiplexers |
Use Scenario: Routing inertial measurement unit (IMU) analog outputs through redundant signal paths in flight control computers. IC Role / Device Role / Timing Role: Provides fail-safe NC path default state - signal passes unless commanded open during fault detection. Use Value: >2000V ESD rating withstands aircraft static discharge; guaranteed RON flatness preserves phase coherence in gyro signal chains. |
Use Scenario: Channelizing DUT analog stimulus/response paths in semiconductor test handlers with 100+ pin counts. IC Role / Device Role / Timing Role: Enables fast, low-distortion switching between test instruments (SMUs, digitizers) and device pins. Use Value: tON ≤130ns and tOFF ≤75ns support high-throughput parametric testing; 72dB off-isolation minimizes measurement crosstalk. |
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 |
|---|---|---|---|
| MAX391CUE | TSSOP-16 (4.4mm × 3mm); same electrical specs, lower thermal resistance, no exposed pad | Better suited for space-constrained PCBs; requires different land pattern and reflow profile | Select for compact layouts where SOIC height or thermal mass is limiting; identical functionality and qualification. |
| ADG1412BRUZ | Quad SPST, but NO configuration; 1.8Ω typical RON; requires ≥4.5V supply; no ±3V operation | Superior RON and bandwidth, but lacks NC default state and dual-supply flexibility | Choose only if normally open behavior and higher supply voltage are acceptable; not drop-in for safety-critical NC-fail-safe use cases. |
Compared with MAX391CUE, MAX391CSE+TG002 offers identical analog performance in a more manufacturable SOIC package; versus ADG1412BRUZ, it provides NC fail-safe operation and wider supply range-critical for legacy ±5V systems and fault-tolerant designs.
Availability
MAX391CSE+TG002 is available at Aetrix Electronics and suitable for battery-operated systems, precision data acquisition, and avionics signal routing requiring stable component supply across extended production lifecycles.
Supply support for MAX391CSE+TG002 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) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and computing markets.
The MAX391CSE+TG002 belongs to Maxim's precision analog switch family, engineered for low-leakage, low-distortion signal routing in demanding measurement and control applications where channel matching and charge injection are critical.
FAQ
What is the maximum allowable supply voltage for MAX391CSE+TG002?
The absolute maximum ratings specify V+ to V− differential up to 17V, with individual rails limited to −0.3V to +17V referenced to V−. For reliable operation, use V+ ≤ +15V and V− ≥ −8V under dual-supply conditions, or V+ = +3V to +15V with V− = GND in single-supply mode. Exceeding these stresses may cause permanent damage to MAX391CSE+TG002.
Does MAX391CSE+TG002 support rail-to-rail analog signal switching?
Yes. With V+ = +5V and V− = −5V, MAX391CSE+TG002 supports analog signals from −5V to +5V (V− to V+). In single +5V operation (V− = GND), the signal range is 0V to +5V. This rail-to-rail capability is guaranteed across temperature and load, making MAX391CSE+TG002 suitable for full-scale bipolar and unipolar signal paths.
How does the normally closed (NC) configuration of MAX391CSE+TG002 affect system safety?
The NC topology ensures signal continuity by default (IN = low), opening only upon active logic high. This fail-safe behavior protects downstream circuitry during power loss, reset, or controller failure. In guidance systems or medical monitors, MAX391CSE+TG002 maintains sensor signal flow until explicitly interrupted-directly supporting IEC 61508 functional safety requirements.
Can MAX391CSE+TG002 be used with 3.3V logic controllers?
Yes. MAX391CSE+TG002 accepts TTL/CMOS logic levels: VINL ≤ 0.8V (low) and VINH ≥ 2.4V (high). A 3.3V microcontroller GPIO meets these thresholds directly. No level-shifting is needed, and MAX391CSE+TG002 draws <0.5µA per input-compatible with low-drive MCU outputs.
What is the thermal performance of MAX391CSE+TG002 in narrow SOIC package?
The narrow SOIC (S16-2) package has a thermal resistance θJA of 8.70°C/W, allowing 696mW continuous power dissipation at +70°C ambient. Derating is linear above that temperature. For high-current analog paths (>10mA per channel), keep PCB copper area around pins 4 (V−), 5 (GND), and 13 (V+) to maintain junction temperature below +125°C-verified in MAX391CSE+TG002 thermal characterization reports.
MAX391CSE+TG002 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:
- -
MAX391CSE+TG002 FAQ
1.How can I place an order for MAX391CSE+TG002 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX391CSE+TG002 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 MAX391CSE+TG002 reliable?
The price and inventory of MAX391CSE+TG002 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX391CSE+TG002 is usually 5 days.
3.What payment methods are accepted for MAX391CSE+TG002?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX391CSE+TG002 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX391CSE+TG002?
MAX391CSE+TG002 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX391CSE+TG002 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 MAX391CSE+TG002?
For technical support, including MAX391CSE+TG002 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX391CSE+TG002 requirements.
6.How does Aetrix verify that MAX391CSE+TG002 is sourced from the original manufacturer or authorized distributors?
All MAX391CSE+TG002 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 MAX391CSE+TG002 meets industry standards.
7.What is the process for return or replacement of MAX391CSE+TG002?
All MAX391CSE+TG002 units undergo pre-shipment inspection (PSI). If there is an issue with MAX391CSE+TG002, 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 MAX391CSE+TG002 part is unused and in its original packaging.
Return procedure for MAX391CSE+TG002:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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