My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX4644EUT+TG002
- Part No.:
- MAX4644EUT+TG002
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- -
- Datasheet:
-
MAX4644EUT+TG002.pdf
- Description:
- INTEGRATED CIRCUIT
- Quantity:
- Payment:
- Shipping:
Inventory:1,389
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
The MAX4644EUT+TG002 from Maxim Integrated is a single-pole/double-throw (SPDT) CMOS analog switch operating from a single +1.8V to +5.5V supply, delivering 4Ω max on-resistance at +5V, 18ns typical turn-on time, and break-before-make switching. It serves as a high-fidelity signal routing element in portable audio paths, low-voltage data-acquisition front-ends, and sample-and-hold hold capacitors.
For engineers reviewing the MAX4644EUT+TG002 datasheet, MAX4644EUT+TG002 pinout, MAX4644EUT+TG002 application, or MAX4644EUT+TG002 equivalent, key selection criteria include guaranteed RON flatness ≤0.75Ω, <0.35nA leakage over –40°C to +85°C, rail-to-rail analog-signal range, and SOT23-6 package compatibility with space-constrained PCB layouts.
Technical Context
The MAX4644EUT+TG002 implements a BiCMOS SPDT switch architecture with integrated TTL/CMOS-compatible logic-level translators that drive analog gate structures using switched V+ and GND references. Its internal ESD diodes clamp analog pins to V+ and GND, defining leakage behavior across temperature and signal voltage.
Break-before-make timing is guaranteed via internal propagation delay matching (tBBM = 8ns typ), while charge injection is minimized to 5pC typical-critical for precision sample-and-hold accuracy. The device maintains rail-to-rail analog conduction without level-shifting circuitry, enabling direct interface with ADC inputs and DAC outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +1.8V to +5.5V single supply - enables direct integration into Li-ion–powered systems without level shifters |
| On-Resistance (RON) | 4Ω max at +5V - ensures minimal signal attenuation and gain error in 50Ω–300Ω impedance paths |
| RON Flatness | 0.75Ω typ at +5V - preserves linearity across full analog input range (0V to V+) |
| Turn-On/Off Time | 18ns / 12ns typ at +5V - supports >20MHz switching of audio and baseband signals |
| Leakage Current | <0.35nA over –40°C to +85°C - prevents capacitor discharge errors in sample-and-hold circuits |
| Off-Isolation | –80dB at 1MHz - suppresses crosstalk between active and inactive signal paths |
| Total Harmonic Distortion | 0.018% - maintains fidelity in audio routing and sensor signal chains |
Pinout & Package
MAX4644EUT+TG002 is packaged in a RoHS-compliant 6-pin SOT23 (U6+4) with 0.95mm pitch and 2.9mm × 1.6mm footprint. Thermal resistance θJA = 115°C/W; power dissipation derates 8.70mW/°C above +70°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Digital control input | TTL/CMOS-compatible logic signal; drives internal switch state (NO or NC connected to COM) |
| 2 - GND | Analog and digital ground reference | Common return for supply, logic, and analog paths; must be low-impedance for THD and leakage control |
| 3 - NO | Normally open analog terminal | Connects to COM only when IN = high; bidirectional signal path with 12pF off-capacitance |
| 4 - COM | Common analog terminal | Central signal hub; connects to either NO or NC depending on IN state; supports rail-to-rail ±20mA continuous current |
| 5 - NC | Normally closed analog terminal | Connects to COM only when IN = low; matched RON within 0.1Ω to NO channel at +5V |
| 6 - V+ | Positive supply input | Bypassed with 0.1μF ceramic capacitor to GND; powers analog switches and logic translators |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog operation | Supports full V+ to GND signal swing without clipping or distortion-enables direct interface with SAR ADCs and op-amp outputs |
| Guaranteed break-before-make | 8ns minimum tBBM prevents momentary shorting between NO and NC-critical for avoiding signal glitches in multiplexed sensor arrays |
| Low charge injection (5pC) | Minimizes voltage step on hold capacitors during switching-preserves accuracy in precision sample-and-hold and integrator circuits |
| High off-isolation (–80dB @ 1MHz) | Reduces coupling between adjacent channels in multi-path audio routing-meets THD requirements for professional-grade line drivers |
| Ultra-low quiescent power (<0.01µW) | Enables always-on signal routing in battery-backed systems with negligible impact on standby current budget |
Applications
| Portable Audio Signal Routing | Low-Voltage Data-Acquisition Front-End |
|---|---|
|
Use Scenario: Switching between microphone inputs and line-level sources in Bluetooth headsets and voice-controlled wearables. IC Role / Device Role / Timing Role: SPDT analog switch selecting between dual audio paths with sub-20ns settling and no audible click/pop. Use Value: 4Ω RON and 0.018% THD preserve SNR >95dB; SOT23-6 footprint fits 3.5mm × 3.5mm PCB area constraints. |
Use Scenario: Multiplexing multiple sensor outputs (thermocouple, RTD, strain gauge) into a single 16-bit SAR ADC. IC Role / Device Role / Timing Role: Low-leakage analog switch isolating unused channels to prevent measurement drift and offset accumulation. Use Value: <0.35nA leakage ensures <1μV error on 10nF sampling capacitor over 10ms acquisition window. |
| Sample-and-Hold Circuit Hold Switch | Communications Baseband Signal Path |
|
Use Scenario: Holding sampled voltage on a precision capacitor during ADC conversion cycles in instrumentation amplifiers. IC Role / Device Role / Timing Role: Ultra-low charge-injection SPDT switch disconnecting amplifier output from hold capacitor with minimal droop. Use Value: 5pC charge injection limits hold-step error to <50μV on 100pF capacitor-supports 16-bit resolution without recalibration. |
Use Scenario: Routing I/Q baseband signals between transceiver ICs and RF front-end filters in narrowband IoT modems. IC Role / Device Role / Timing Role: High-isolation analog switch enabling dynamic reconfiguration of transmit/receive paths without LO leakage degradation. Use Value: –80dB off-isolation at 1MHz suppresses intermodulation products; 12pF off-capacitance maintains group delay flatness up to 10MHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG711BRMZ-REEL | 4.5Ω RON max at +5V; 25ns tON; –75dB off-isolation; MSOP-10 package | Larger footprint and slower switching limit use in ultra-compact audio modules | Select when higher off-isolation margin is needed and board area permits MSOP-10 layout |
| TS5A23157DCUR | 0.9Ω RON at +3.3V; 10ns tON; –65dB off-isolation; 6-pin VSSOP | Lower RON benefits low-voltage sensor interfaces but reduced isolation affects multi-channel crosstalk | Prefer for 3.3V-only systems requiring lowest possible on-resistance and faster switching |
Compared with ADG711BRMZ-REEL and TS5A23157DCUR, the MAX4644EUT+TG002 offers superior off-isolation and leakage performance in a smaller SOT23-6 package-making it optimal for battery-powered instrumentation where signal integrity and board space are co-constrained.
Availability
MAX4644EUT+TG002 is available at Aetrix Electronics and suitable for portable audio signal routing, low-voltage data-acquisition systems, sample-and-hold circuits, and communications baseband signal path applications requiring stable component supply and long-term manufacturability.
Supply support for MAX4644EUT+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) designs precision analog, mixed-signal, and power-management ICs for industrial, medical, and communications applications-with emphasis on low-power, high-reliability performance.
The MAX4644EUT+TG002 belongs to Maxim's high-speed analog switch product line, engineered specifically for low-voltage, low-leakage, rail-to-rail signal routing in portable and precision measurement systems.
FAQ
What is the maximum supply voltage rating for the MAX4644EUT+TG002?
The MAX4644EUT+TG002 has an absolute maximum supply voltage (V+) of +6V. However, functional operation is specified only from +1.8V to +5.5V. Exceeding +6V risks permanent damage due to internal ESD diode breakdown, and operation above +5.5V voids parametric guarantees including RON, leakage, and switching times. Always use a 0.1μF bypass capacitor between V+ and GND.
Does the MAX4644EUT+TG002 support rail-to-rail analog signal operation?
Yes, the MAX4644EUT+TG002 supports true rail-to-rail analog signal operation from GND to V+, verified across its full –40°C to +85°C temperature range. This allows direct connection to op-amp outputs, ADC inputs, and DAC buffers without external level-shifting circuitry. The analog-signal range remains unclipped even at minimum +1.8V supply, though RON increases to 30Ω typical.
What is the guaranteed break-before-make time for the MAX4644EUT+TG002?
The MAX4644EUT+TG002 guarantees break-before-make (BBM) operation with a minimum tBBM of 8ns at +5V and +25°C, and 3ns over the full –40°C to +85°C range. This prevents simultaneous conduction between NO and NC terminals, eliminating signal shorting during state transitions-essential for protecting downstream circuitry in multiplexed sensor and audio systems.
How does the MAX4644EUT+TG002 handle overvoltage conditions on analog pins?
The MAX4644EUT+TG002 integrates ESD-protection diodes between each analog pin (NO, NC, COM) and both V+ and GND. If an analog signal exceeds V+ or falls below GND, the corresponding diode conducts, clamping the voltage. Forward current must be limited externally to avoid exceeding the ±100mA peak rating. This architecture defines the measured leakage behavior but requires careful PCB layout to avoid unintended current paths.
Is the MAX4644EUT+TG002 pin-compatible with other SOT23-6 analog switches?
No, the MAX4644EUT+TG002 uses a proprietary SOT23-6 pinout (IN, GND, NO, COM, NC, V+) that differs from industry-standard variants like the TS5A23157 or ADG711. Substituting without layout revision will cause functional failure. Always verify pin mapping against the MAX4644EUT+TG002 top-mark "AAHQ" and the official Maxim package drawing U6+4 (outline 21-0058).
MAX4644EUT+TG002 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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:
- -
MAX4644EUT+TG002 FAQ
1.How can I place an order for MAX4644EUT+TG002 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4644EUT+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 MAX4644EUT+TG002 reliable?
The price and inventory of MAX4644EUT+TG002 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4644EUT+TG002 is usually 5 days.
3.What payment methods are accepted for MAX4644EUT+TG002?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4644EUT+TG002 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4644EUT+TG002?
MAX4644EUT+TG002 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4644EUT+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 MAX4644EUT+TG002?
For technical support, including MAX4644EUT+TG002 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4644EUT+TG002 requirements.
6.How does Aetrix verify that MAX4644EUT+TG002 is sourced from the original manufacturer or authorized distributors?
All MAX4644EUT+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 MAX4644EUT+TG002 meets industry standards.
7.What is the process for return or replacement of MAX4644EUT+TG002?
All MAX4644EUT+TG002 units undergo pre-shipment inspection (PSI). If there is an issue with MAX4644EUT+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 MAX4644EUT+TG002 part is unused and in its original packaging.
Return procedure for MAX4644EUT+TG002:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX4644EUT+TG002 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…
