My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX325EUA+T
- Part No.:
- MAX325EUA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX325EUA+T.pdf
- Description:
- IC SW SPST-NO/NCX2 60OHM 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:4,432
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX325EUA+T from Analog Devices is a precision dual SPST analog switch with one normally open (NO) and one normally closed (NC) channel, designed for single-supply operation from +2.7V to +16V. It delivers 60Ω max on-resistance, <5pC charge injection, guaranteed break-before-make switching, and 100pA max off-leakage - enabling high-fidelity signal routing in battery-powered audio/video systems and precision data acquisition.
For engineers reviewing the MAX325EUA+T datasheet, MAX325EUA+T pinout, MAX325EUA+T application, or MAX325EUA+T equivalent, key selection criteria include its dual-configuration topology, -40°C to +85°C industrial temperature rating, µMAX-8 package footprint, and verified break-before-make timing critical for preventing signal shorting in multiplexed sensor or DAC/ADC interfaces.
Technical Context
The MAX325EUA+T integrates two independent CMOS SPST switches on a single die: Channel 1 is NO (open at logic low), Channel 2 is NC (closed at logic low), with guaranteed break-before-make operation ensuring no overlap during state transitions. Its rail-to-rail analog signal range (GND to V+) and bidirectional current capability support both input and output roles across COM, NO, and NC terminals.
Designed for low-power precision switching, it achieves <5μW quiescent power, <2.5nA max on-leakage at +85°C, and fast tON/tOFF of 150ns/100ns (typical at +5V). The device uses internal protection diodes and is rated for >2000V ESD (HBM), making it suitable for rugged industrial and military-grade signal path control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.7V to +16V single supply - supports direct interfacing with 3.3V, 5V, and 12V systems without level-shifting. |
| On-Resistance (RON) | 60Ω max at +5V - ensures minimal signal attenuation and gain error in precision instrumentation paths. |
| RON Matching | 2Ω max between channels - enables accurate differential or ratiometric measurements across dual-switch configurations. |
| Charge Injection | 5pC max - reduces voltage glitch and settling time in sample-and-hold and switched-capacitor circuits. |
| Break-Before-Make Delay | 2ns min - prevents momentary short-circuiting between analog sources during channel switching. |
| Off-Leakage Current | 100pA max at +25°C - preserves signal integrity in high-impedance sensor front-ends and battery-monitoring circuits. |
| Switching Speed | tON ≤ 150ns, tOFF ≤ 100ns - supports high-throughput multiplexing in test equipment and real-time control loops. |
Pinout & Package
MAX325EUA+T is housed in an 8-pin µMAX package (3.0mm × 3.0mm, 0.5mm pitch), RoHS-compliant and thermally optimized for space-constrained PCB layouts. The package features exposed pad for enhanced thermal dissipation and mechanical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NO1 | Normally open analog terminal for Switch 1 - connects to COM1 only when IN1 = logic high. |
| 2 | COM1 | Common analog terminal for Switch 1 - bidirectional I/O node shared with NO1 or NC1 depending on logic state. |
| 3 | IN2 | Logic input controlling Switch 2 - low = NC2 closed, high = NC2 open (break-before-make enforced). |
| 4 | GND | Analog/digital ground reference - must be low-impedance return path for leakage and switching currents. |
| 5 | NO2 / NC2 | Pin 5 is NC2 for MAX325 - normally closed analog terminal for Switch 2, connected to COM2 at logic low. |
| 6 | COM2 | Common analog terminal for Switch 2 - bidirectional node tied to NC2 (logic low) or isolated (logic high). |
| 7 | IN1 | Logic input controlling Switch 1 - high = NO1 closed, low = NO1 open; TTL/CMOS compatible at +5V. |
| 8 | V+ | Positive supply rail - powers internal logic and switch FETs; absolute max 17V; must be applied before analog signals. |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make guarantee | Ensures zero overlap between NO1/NC2 conduction states - eliminates risk of source shorting in dual-input mux topologies. |
| Rail-to-rail analog signal handling | Supports full V+ to GND signal swing without distortion - ideal for unipolar sensor outputs and DAC buffers. |
| Ultra-low charge injection (≤5pC) | Minimizes transient voltage kick in high-Z sampling nodes - critical for 16-bit+ ADC front-end accuracy. |
| TTL/CMOS logic compatibility at +5V | Accepts standard 0.8V/2.4V thresholds - simplifies interface with microcontrollers and FPGA I/O banks. |
| Industrial temperature range (−40°C to +85°C) | Validated performance across extended ambient conditions - suitable for automotive body electronics and outdoor comms gear. |
Applications
| Battery-Powered Audio Routing | High-Accuracy Data Acquisition |
|---|---|
|
Use Scenario: Selecting between multiple microphone inputs or headphone outputs in portable medical monitors and handheld test meters. IC Role / Device Role: Dual-channel analog multiplexer providing isolated signal paths with minimal crosstalk and offset drift. Use Value: 85dB crosstalk and <2Ω RON matching preserve stereo channel balance and SNR in 24-bit audio chains. |
Use Scenario: Multiplexing sensor outputs (thermocouples, strain gauges) into a single precision ADC in industrial PLC modules. IC Role / Device Role: Precision SPST switch enabling sequential sampling while maintaining signal fidelity and low leakage. Use Value: 100pA max off-leakage and 5pC charge injection prevent measurement errors in high-impedance, low-level analog front-ends. |
| Military Radio Signal Conditioning | Guidance System Sensor Interface |
|
Use Scenario: Routing RF IF signals and control voltages in compact SDR transceivers operating in harsh environmental conditions. IC Role / Device Role: Robust analog switch managing antenna diversity paths and calibration loop connections. Use Value: >2000V HBM ESD rating and −40°C to +85°C operation ensure reliability in field-deployed tactical radios. |
Use Scenario: Isolating inertial measurement unit (IMU) analog outputs during self-test or fault recovery sequences. IC Role / Device Role: Break-before-make dual switch enforcing safe signal disconnection prior to reconfiguration. Use Value: Guaranteed 2ns minimum break interval prevents transient coupling between navigation sensors and actuator drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX325ESA+ | Same electrical specs but in SO-8 package (4.9mm × 6.0mm) - larger footprint, higher thermal mass. | Better suited for manual assembly or legacy SO-based designs where µMAX reflow is not supported. | Select MAX325ESA+ if board layout requires SO-8 compatibility or higher power dissipation margin. |
| ADG1419BRMZ | Single-supply +3.3V/+5V operation only; 0.7Ω typical RON; no break-before-make guarantee; 16-lead TSSOP. | Optimized for ultra-low on-resistance in low-voltage digital I/O switching, not precision analog multiplexing. | Choose ADG1419BRMZ only when sub-1Ω RON is mandatory and break-before-make is unnecessary. |
Compared with MAX325ESA+, the MAX325EUA+T offers 40% smaller PCB area and faster thermal response; versus ADG1419BRMZ, it provides guaranteed break-before-make and wider supply range (2.7V–16V), making it uniquely suitable for mixed-voltage industrial signal routing where safety and flexibility are prioritized over minimal RON.
Availability
MAX325EUA+T is available at Aetrix Electronics and suitable for battery-operated systems, precision data acquisition, and military communications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX325EUA+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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and aerospace markets since 1965.
The MAX325EUA+T belongs to the MAX32x precision analog switch family, engineered specifically for low-leakage, low-distortion signal routing in battery-sensitive and high-reliability applications where rail-to-rail operation and guaranteed switching sequencing are essential.
FAQ
What is the maximum supply voltage rating for MAX325EUA+T?
The MAX325EUA+T has an absolute maximum supply voltage (V+) of +17V. Continuous operation is specified from +2.7V to +16V. Exceeding +17V risks permanent damage due to internal diode clamp breakdown, per Absolute Maximum Ratings. For reliable long-term use, maintain V+ ≤ 16V with appropriate derating above +70°C ambient.
Does MAX325EUA+T support rail-to-rail analog signal switching?
Yes, MAX325EUA+T supports true rail-to-rail analog signal switching from GND to V+. The analog signal range is specified as 0V to V+ across all operating conditions, with minimal RON variation (<6Ω flatness) over that full range - confirmed by Typical Operating Characteristics plots in the datasheet.
Is break-before-make timing guaranteed for MAX325EUA+T?
Yes, break-before-make operation is guaranteed for MAX325EUA+T. The datasheet specifies a minimum break interval (tD) of 2ns under RL = 300Ω, CL = 35pF conditions. This feature is exclusive to the MAX325 variant and is not present in MAX323 or MAX324, making it critical for fault-tolerant analog multiplexing.
What is the leakage current performance of MAX325EUA+T at +85°C?
At +85°C, MAX325EUA+T guarantees ≤2.5nA on-leakage (ICOM(ON)) and ≤5nA off-leakage (INO(OFF)/INC(OFF)) across the industrial temperature range. These values are 100% tested at hot temperature and correlated to room-temperature specs - essential for maintaining accuracy in high-temperature sensor interfaces.
Can MAX325EUA+T be used with a 3.3V logic interface?
Yes, MAX325EUA+T accepts 3.3V logic levels when powered from a +3.3V supply: VINL ≤ 0.6V and VINH ≥ 2.4V are valid thresholds. However, TTL compatibility is only guaranteed at +5V; for 3.3V operation, drive inputs rail-to-rail (0V/3.3V) to minimize power and ensure robust switching - as explicitly stated in Applications Information.
MAX325EUA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO/NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 60Ohm
- Channel-to-Channel Matching (ΔRon):
- 800mOhm
- Voltage - Supply, Single (V+):
- 2.7V ~ 16V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 150ns, 100ns
- -3db Bandwidth:
- -
- Charge Injection:
- 1pC
- Channel Capacitance (CS(off), CD(off)):
- 9pF, 9pF
- Current - Leakage (IS(off)) (Max):
- 100pA
- Crosstalk:
- -85dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-uMAX/uSOP
MAX325EUA+T FAQ
1.How can I place an order for MAX325EUA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX325EUA+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 MAX325EUA+T reliable?
The price and inventory of MAX325EUA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX325EUA+T is usually 5 days.
3.What payment methods are accepted for MAX325EUA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX325EUA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX325EUA+T?
MAX325EUA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX325EUA+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 MAX325EUA+T?
For technical support, including MAX325EUA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX325EUA+T requirements.
6.How does Aetrix verify that MAX325EUA+T is sourced from the original manufacturer or authorized distributors?
All MAX325EUA+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 MAX325EUA+T meets industry standards.
7.What is the process for return or replacement of MAX325EUA+T?
All MAX325EUA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX325EUA+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 MAX325EUA+T part is unused and in its original packaging.
Return procedure for MAX325EUA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX325EUA+T Tags
-
SN74LVC1G3157DBVR
Texas Instruments
-
SN74LVC1G66DBVR
Texas Instruments
-
SN74LVC1G66DCKR
Texas Instruments
-
SN74LVC1G3157DSFR
Texas Instruments
-
1P1G3157QDCKRQ1
Texas Instruments
-
SN74LVC2G66DCUR
Texas Instruments
-
SN74LV4052APWR
Texas Instruments
-
74HC4051D,653
Nexperia USA Inc.
-
SN74LV4051APWR
Texas Instruments
-
CD74HC4052PWR
Texas Instruments
-
CD74HC4051PWR
Texas Instruments
-
TS5A3166DBVR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
