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Analog Devices Inc./Maxim Integrated MAX14764ETA+T
- Part No.:
- MAX14764ETA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
MAX14764ETA+T.pdf
- Description:
- IC SWITCH SPDT X 1 20OHM 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:560
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Product details
Overview
MAX14764ETA+T from Maxim Integrated is a single-pole/double-throw (SPDT) analog switch enabling bipolar signal routing beyond supply rails, with ±25V signal range, 20Ω max on-resistance, <±30nA max on-leakage, and operation from +3.0V to +5.5V supply - used in precision instrumentation and medical signal path switching.
For engineers reviewing the MAX14764ETA+T datasheet, MAX14764ETA+T pinout, MAX14764ETA+T application, or MAX14764ETA+T equivalent, this page delivers verified electrical specs, thermal shutdown behavior, SPDT switching timing (1.04–1.6ms turn-on), -77dB off-isolation at 100kHz, and TDFN-8 package layout guidance - all confirmed for the exact MAX14764ETA+T variant.
Technical Context
The MAX14764ETA+T integrates three charge pumps (5V regulated, +35V, and -27V) to bias internal switches, enabling rail-to-rail and beyond-rail conduction without external high-voltage supplies. Its SPDT architecture uses SEL and EN pins to control COM-to-A1/A2 connection state with break-before-make timing of 740ns.
It supports bidirectional analog current flow across A1, A2, and COM terminals, maintains 58mΩ typical on-resistance flatness over -25V to +25V input range, and includes thermal shutdown activation at +154°C with 24°C hysteresis - all specified across -40°C to +85°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | Single-pole/double-throw (SPDT) - routes one common terminal (COM) between two independent analog paths (A1 or A2). |
| Analog Signal Range | ±25V - passes signals exceeding VCC/GND rails, eliminating need for dual-supply op-amps or level-shifting circuitry. |
| On-Resistance (RON) | 8Ω (typ) to 20Ω (max) - ensures minimal voltage drop and gain error in precision measurement paths. |
| On-Leakage Current | ±30nA (max) at ±25V - preserves accuracy in high-impedance sensor interfaces and electrometer-grade circuits. |
| -3dB Bandwidth | 115MHz (typ) - supports fast-switching audio, ATE, and broadband test signal routing without attenuation. |
| Off-Isolation | -77dB at 100kHz - suppresses crosstalk between inactive channels in multi-channel data acquisition systems. |
| Enable Turn-On Time | 1.04–1.6ms - defines minimum settling delay before valid signal transmission after SEL/EN assertion. |
Pinout & Package
MAX14764ETA+T is housed in an 8-pin, 3mm × 3mm TDFN-EP package with exposed pad connected to VN. The pinout supports compact PCB layout and thermal dissipation via VN-bonded EP.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Positive supply input | Accepts +3.0V to +5.5V; powers internal logic and charge pumps - requires 1µF ceramic bypass to GND. |
| GND | Ground reference | System ground return for logic and analog sections; connects to exposed pad via VN. |
| VN | Negative bias output | Provides -27V internal bias; must be bypassed with 0.1µF/50V capacitor to GND - not for external load sourcing. |
| VP | Positive bias output | Provides +35V internal bias; requires 0.1µF/50V capacitor to GND - isolated from system power rails. |
| COM | Common analog terminal | Center node of SPDT switch; bidirectional - serves as input or output depending on signal flow direction. |
| A1 | SPDT throw 1 terminal | Connects to COM when SEL = low; rated for ±25V continuous analog voltage swing. |
| A2 | SPDT throw 2 terminal | Connects to COM when SEL = high; electrically identical to A1 in voltage rating and leakage. |
| SEL | SPDT select control | Logic-level input (VIH ≥ 1.7V @ VCC=3V); controls COM→A1 (low) or COM→A2 (high) path selection. |
| EN | Global enable input | Active-high logic control; disables both A1 and A2 paths when low - overrides SEL state. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail and beyond-rail signal handling | Supports -25V to +25V analog signals with no external bias supplies - simplifies front-end design in industrial sensors. |
| Integrated triple charge pump | Generates +35V and -27V internal biases from single 3–5.5V rail - eliminates need for external high-voltage generators. |
| Thermal shutdown protection | Activates at +154°C with 24°C hysteresis - prevents latch-up or parametric shift during overtemperature transients. |
| Low on-resistance flatness | 58mΩ (typ) variation across full -25V to +25V range - ensures consistent gain and linearity in precision amplifiers. |
| Break-before-make switching | 740ns guaranteed interval - avoids momentary short-circuit between A1 and A2 during path transition. |
Applications
| Industrial Measurement Systems | Instrumentation Systems |
|---|---|
Use Scenario: Multiplexing high-voltage sensor outputs (e.g., strain gauge bridges, RTD excitation) into a single ADC channel under varying temperature conditions. IC Role / Device Role / Timing Role: SPDT analog switch providing isolated, low-leakage signal routing with rail-exceeding capability and thermal stability. Use Value: Enables direct connection of ±25V sensor signals without level-shifting, reducing component count and offset drift in 24-bit measurement systems. |
Use Scenario: Switching calibration references (e.g., precision shunt voltages, thermocouple simulators) into DMM or oscilloscope front ends. IC Role / Device Role / Timing Role: Precision SPDT switch with <±30nA on-leakage and 58mΩ RON flatness ensuring traceable metrology-grade signal integrity. Use Value: Maintains sub-0.005% THD+N and -77dB off-isolation across 100kHz bandwidth - critical for NIST-traceable calibration paths. |
| Medical Systems | ATE Systems |
Use Scenario: Routing ECG/EEG electrode signals through protection and filtering stages prior to amplifier input in patient-connected devices. IC Role / Device Role / Timing Role: Bi-directional SPDT switch with nonpowered ±25V tolerance and <1µA input leakage at VCC = 0V - meets IEC 60601-1 patient isolation requirements. Use Value: Survives defibrillation pulses and floating electrode potentials without damage or parameter shift - validated over -40°C to +85°C. |
Use Scenario: High-speed channel selection in automated test equipment for semiconductor wafer probing and functional testing. IC Role / Device Role / Timing Role: 115MHz bandwidth SPDT switch with 1.04–1.6ms enable timing and 740ns break-before-make - synchronizes with tester pattern generators. Use Value: Supports >100k cycles per hour with stable RON and leakage, minimizing recalibration intervals in production test environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX14762ETB+ | Dual-SPST configuration (two independent switches), same 20Ω RON and ±25V range, but 10-pin TDFN package and separate EN1/EN2 controls. | Used where independent channel enable is required instead of SPDT path selection - e.g., differential pair switching or redundant signal paths. | Select MAX14762ETB+ only if dual independent SPST control is needed; MAX14764ETA+T provides space-saving SPDT functionality in same footprint family. |
| ADG1419BRMZ | Single SPDT with ±15V signal range, 4.7Ω RON (typ), no integrated charge pumps - requires external ±15V supplies for rail-exceeding operation. | Suitable for lower-voltage industrial I/O where ±15V suffices and external bias rails already exist - lacks thermal shutdown and beyond-rail capability. | Choose ADG1419BRMZ only when system already provides ±15V supplies and thermal protection is handled externally; MAX14764ETA+T integrates bias generation and safety features. |
Compared with MAX14762ETB+, MAX14764ETA+T reduces board area by consolidating two SPST functions into one SPDT with shared control, while versus ADG1419BRMZ it eliminates external high-voltage supplies and adds thermal shutdown - making it optimal for compact, self-contained, high-reliability signal routing.
Availability
MAX14764ETA+T is available at Aetrix Electronics and suitable for industrial measurement systems, medical diagnostics equipment, automated test equipment, and precision instrumentation requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX14764ETA+T 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 - emphasizing high reliability, low noise, and rail-aware architectures.
The MAX14760/MAX14762/MAX14764 family was engineered specifically for high-voltage analog signal routing in resource-constrained systems - delivering beyond-rail performance without external bias circuitry or complex layout constraints.
FAQ
What is the maximum analog signal voltage the MAX14764ETA+T can handle?
The MAX14764ETA+T supports analog signals from -25V to +25V relative to GND, regardless of its +3.0V to +5.5V VCC supply. This is enabled by internal +35V and -27V charge pumps, allowing true above- and below-the-rails operation without external high-voltage supplies - confirmed in the Absolute Maximum Ratings and Electrical Characteristics tables of the official datasheet.
Does the MAX14764ETA+T require external capacitors, and if so, what values?
Yes, the MAX14764ETA+T requires three external bypass capacitors: a 1µF ceramic capacitor from VCC to GND, and 0.1µF/50V ceramic capacitors from VP to GND and VN to GND. These stabilize the internal charge pumps and ensure proper bias generation - omission causes erratic switching or failure to pass ±25V signals, as specified in the Pin Description and Applications Information sections.
How does thermal shutdown work in the MAX14764ETA+T?
The MAX14764ETA+T activates thermal shutdown at +154°C junction temperature with 24°C hysteresis, disabling all switch paths until temperature falls below +130°C. This protects against permanent damage during sustained overtemperature events - a feature confirmed in the Electrical Characteristics table and Detailed Description section, and independent of VCC or control logic states.
Can the MAX14764ETA+T operate with VCC = 0V while analog signals are present?
Yes, the MAX14764ETA+T tolerates ±25V on A1, A2, or COM pins with VCC = 0V, exhibiting typically <1µA input leakage. However, large dv/dt on inputs may cause transient charging currents into VP/VN capacitors - limiting slew rate to ≤3V/µs when 100nF capacitors are used, as detailed in the Nonpowered Condition section of the datasheet.
What is the function of the exposed pad (EP) on the MAX14764ETA+T package?
The exposed pad (EP) on the MAX14764ETA+T must be soldered and electrically connected to VN, not GND or VCC. It serves as a thermal and electrical extension of the VN node - improving heat dissipation and stabilizing the -27V internal bias rail. Leaving EP unconnected or connecting it to GND degrades thermal performance and may cause bias instability or premature shutdown.
MAX14764ETA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 20Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 3V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 200µs, 400µs
- -3db Bandwidth:
- 115MHz
- Charge Injection:
- 19pC
- Channel Capacitance (CS(off), CD(off)):
- 32pF
- Current - Leakage (IS(off)) (Max):
- 10nA
- Crosstalk:
- -92dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN (3x3)
MAX14764ETA+T FAQ
1.How can I place an order for MAX14764ETA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX14764ETA+T 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 MAX14764ETA+T reliable?
The price and inventory of MAX14764ETA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX14764ETA+T is usually 5 days.
3.What payment methods are accepted for MAX14764ETA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX14764ETA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX14764ETA+T?
MAX14764ETA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX14764ETA+T 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 MAX14764ETA+T?
For technical support, including MAX14764ETA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX14764ETA+T requirements.
6.How does Aetrix verify that MAX14764ETA+T is sourced from the original manufacturer or authorized distributors?
All MAX14764ETA+T 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 MAX14764ETA+T meets industry standards.
7.What is the process for return or replacement of MAX14764ETA+T?
All MAX14764ETA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX14764ETA+T, 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 MAX14764ETA+T part is unused and in its original packaging.
Return procedure for MAX14764ETA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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