My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX4656ETA+T
- Part No.:
- MAX4656ETA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
MAX4656ETA+T.pdf
- Description:
- IC SWITCH SPST-NOX1 10OHM 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,079
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX4656ETA+T from Maxim Integrated is a high-current, normally open (NO), single-pole/single-throw (SPST) CMOS analog switch rated for ±4.5V to ±20V dual-supply or +9V to +40V single-supply operation, with 10Ω max on-resistance, 300mA continuous current handling, and rail-to-rail signal switching - deployed in xDSL modems and PBX systems for reliable analog signal routing under high-load conditions.
For engineers reviewing the MAX4656ETA+T datasheet, MAX4656ETA+T pinout, MAX4656ETA+T application, or MAX4656ETA+T equivalent, this page delivers verified electrical specs, package mapping to 8-pin TDFN-EP, truth-table–confirmed NO logic behavior, thermal derating data, and direct alternatives for relay-replacement designs requiring >300mA switching capability.
Technical Context
The MAX4656ETA+T implements a parallel N-channel/P-channel MOSFET switch architecture with proprietary body-drive sensing to eliminate voltage-drop limitations-enabling full rail-to-rail conduction without parasitic diode turn-on, even at >600mV VCOM–VNO differentials. Its control logic accepts TTL/CMOS-compatible inputs (VIL = 0.8V, VIH = 2.4V) and operates across -40°C to +85°C.
Dual-supply operation supports asymmetrical configurations (e.g., +12V/–5V), while its 1nA max off-leakage at +25°C and 210MHz –3dB bandwidth ensure precision signal integrity in audio and test equipment applications where low charge injection (23pC) and minimal THD (0.007%) are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance | 10Ω max at ±15V supplies - ensures minimal I²R loss and voltage drop when switching 300mA loads. |
| Continuous current | ±300mA - supports high-power analog routing without external heatsinking in compact layouts. |
| Supply range | ±4.5V to ±20V dual or +9V to +40V single - enables flexible biasing for industrial and telecom signal chains. |
| Off-leakage current | 1nA max at +25°C - preserves signal fidelity in high-impedance sensor or audio paths. |
| Turn-on/off time | 110ns/75ns typical - meets timing requirements for fast-switching test instrumentation and multiplexed ATE systems. |
| Bandwidth | 210MHz –3dB - maintains integrity of video, RF sampling, and broadband communication signals. |
| Charge injection | 23pC - minimizes glitch-induced settling errors in precision data acquisition front-ends. |
Pinout & Package
MAX4656ETA+T is housed in an 8-pin TDFN-EP (Exposed Paddle) package measuring 3.0mm × 3.0mm × 0.8mm, with thermal pad (EP) designed for solder connection to V+ to enhance power dissipation (1951mW at +70°C, derated 24.4mW/°C above).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 COM | Analog Switch Common | High-current bidirectional signal path terminal; connects to load or source in SPST NO configuration. |
| 2,5 N.C. | No Internal Connection | Unbonded pins; must remain unconnected to avoid parasitic coupling or mechanical stress. |
| 3 GND | Ground Reference | Return path for digital control logic and internal bias networks; requires low-impedance PCB plane. |
| 4 V+ | Positive Supply Input | Primary positive rail input; EP pad must be soldered to same net for thermal management. |
| 6 IN | Digital Control Input | TTL/CMOS-compatible logic input; drives internal switch gate; low = OFF (open), high = ON (closed). |
| 7 V- | Negative Supply Input | Required for dual-supply operation; sets lower analog signal rail; floating in single-supply mode. |
| 8 NO | Analog Switch Normally Open | Signal output terminal that connects to COM only when IN = high; isolated otherwise. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Switches analog signals from V− to V+ without clipping - eliminates level-shifting circuitry in ±15V systems. |
| 1Ω max RON flatness | Ensures consistent gain and linearity across full signal range - critical for audio and instrumentation accuracy. |
| No VL supply required | Eliminates need for separate logic-level supply - simplifies BOM and layout in mixed-voltage systems. |
| Pin compatibility with DG417/DG418 | Enables drop-in upgrade from legacy switches without PCB redesign - reduces qualification time for existing designs. |
| Exposed paddle thermal enhancement | Supports 1951mW continuous dissipation at +70°C - sustains 300mA loads in space-constrained TDFN footprint. |
Applications
| Relay Replacement | Audio Signal Routing |
|---|---|
Use Scenario: Replacing electromechanical relays in automated test equipment (ATE) switching matrices requiring >1 million operations without wear-out. IC Role / Device Role / Timing Role: SPST NO analog switch providing solid-state isolation and sub-200ns switching transitions between DUT channels. Use Value: Eliminates contact bounce, arcing, and finite lifetime - enabling maintenance-free 24/7 operation in production test floors. | Use Scenario: Routing line-level audio signals between multiple sources (mic, DAC, codec) and outputs (headphone amp, speaker driver) in PC multimedia boards. IC Role / Device Role / Timing Role: Low-distortion, low-leakage analog switch managing bidirectional audio paths with <0.01% THD at 20kHz. Use Value: Preserves dynamic range and channel separation via 77dB off-isolation and 25pF off-capacitance - preventing crosstalk in multi-channel systems. |
| xDSL Modem Line Interface | PBX System Signal Multiplexing |
Use Scenario: Switching between ADSL/VDSL line drivers and hybrid couplers during line diagnostics or mode switching in residential gateways. IC Role / Device Role / Timing Role: High-voltage SPST switch handling ±12V analog line signals with 210MHz bandwidth for upstream/downstream spectral integrity. Use Value: Maintains signal fidelity across full DSL band (up to 30MHz) with <2dB insertion loss - avoiding re-equalization in firmware. | Use Scenario: Selecting between primary and backup voice channels in enterprise PBX backplanes during failover events. IC Role / Device Role / Timing Role: Fault-tolerant analog switch delivering 300mA current capacity to sustain loop current during switchover. Use Value: Guarantees uninterrupted voice service with <100ns interruption window - meeting ITU-T G.114 telephony continuity standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4656EUA+ | Same electrical specs but in 8-pin µMAX package (4.1mm × 4.1mm); no exposed paddle; 825mW max power dissipation at +70°C. | Lower thermal performance limits continuous 300mA operation in high-ambient environments without airflow. | Select when board space allows larger footprint and thermal budget permits reduced derating. |
| ADG1419BRMZ | 1.8Ω max RON, 330mA continuous, but only +3.3V/+5V single-supply rated; no dual-supply capability. | Not suitable for ±15V telecom or industrial analog rails; limited to low-voltage data-acquisition systems. | Choose only for battery-powered or low-voltage embedded designs where ultra-low on-resistance outweighs supply flexibility. |
Compared with MAX4656EUA+, the MAX4656ETA+T delivers 2.3× higher thermal power handling via its exposed paddle; versus ADG1419BRMZ, it supports wide-supply industrial signaling but trades 8.2Ω higher on-resistance for ±20V robustness - making it optimal for telecom infrastructure over portable electronics.
Availability
MAX4656ETA+T is available at Aetrix Electronics and suitable for xDSL modems, PBX systems, audio routing hardware, and automated test equipment requiring stable component supply across extended temperature ranges and high-reliability field deployment.
Supply support for MAX4656ETA+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 industrial, communications, and computing applications - emphasizing reliability, integration, and thermal efficiency.
The MAX4655–MAX4658 family targets high-current analog switching in telecom and test equipment, where mechanical relay replacement demands speed, longevity, and rail-to-rail signal integrity under wide supply conditions.
FAQ
What is the maximum continuous current rating for MAX4656ETA+T?
The MAX4656ETA+T supports ±300mA continuous current through its COM and NO terminals under specified thermal conditions. This rating applies across the full operating temperature range (-40°C to +85°C) and is validated with proper PCB copper pour and exposed paddle soldering to V+. Exceeding this current risks thermal shutdown or long-term parametric drift - always verify junction temperature using the 24.4mW/°C derating factor above +70°C ambient.
Does MAX4656ETA+T require a separate logic supply (VL)?
No, the MAX4656ETA+T does not require a VL supply. Its digital control input (IN) is fully compatible with standard TTL and CMOS logic levels (VIL ≤ 0.8V, VIH ≥ 2.4V) referenced directly to the device's ground (GND), regardless of whether operated from single (+9V to +40V) or dual (±4.5V to ±20V) supplies. This eliminates the need for level-shifters or auxiliary regulators in mixed-voltage systems.
Can MAX4656ETA+T operate with asymmetric dual supplies, such as +12V and -5V?
Yes, the MAX4656ETA+T supports asymmetric dual-supply operation - for example, +12V on V+ and -5V on V-. The absolute requirement is that the total V+ to V- differential remains within 40V (max ±20V), and each supply stays within its respective absolute maximum rating (V+ to GND ≤ +44V, V- to GND ≥ -44V). This flexibility allows optimization of analog signal swing and power efficiency in custom telecom or instrumentation designs.
What is the function of the exposed paddle (EP) on the MAX4656ETA+T TDFN package?
The exposed paddle (EP) on the MAX4656ETA+T serves as a thermal and electrical connection point - it must be soldered to the V+ net on the PCB to maximize heat dissipation. With a thermal resistance of 51.3°C/W (junction-to-board), this connection enables the full 1951mW continuous power dissipation rating at +70°C ambient. Leaving EP floating or connecting it to GND degrades thermal performance and may cause premature thermal shutdown under sustained 300mA load.
How does the MAX4656ETA+T differ from the MAX4655ETA+T in functionality?
The MAX4656ETA+T is a normally open (NO) SPST switch, while the MAX4655ETA+T is normally closed (NC). When the IN pin is low, MAX4656ETA+T keeps COM and NO disconnected; MAX4655ETA+T keeps COM and NC connected. Both share identical electrical specs (10Ω RON, 300mA continuous, ±20V supply), package options, and pinout - differing only in default state and pin 8 labeling (NO vs. NC). This makes them functionally complementary in redundant or fail-safe signal-path designs.
MAX4656ETA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 10Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 9V ~ 40V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 200ns, 100ns
- -3db Bandwidth:
- 210MHz
- Charge Injection:
- 23pC
- Channel Capacitance (CS(off), CD(off)):
- 25pF, 25pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN (3x3)
MAX4656ETA+T FAQ
1.How can I place an order for MAX4656ETA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4656ETA+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 MAX4656ETA+T reliable?
The price and inventory of MAX4656ETA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4656ETA+T is usually 5 days.
3.What payment methods are accepted for MAX4656ETA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4656ETA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4656ETA+T?
MAX4656ETA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4656ETA+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 MAX4656ETA+T?
For technical support, including MAX4656ETA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4656ETA+T requirements.
6.How does Aetrix verify that MAX4656ETA+T is sourced from the original manufacturer or authorized distributors?
All MAX4656ETA+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 MAX4656ETA+T meets industry standards.
7.What is the process for return or replacement of MAX4656ETA+T?
All MAX4656ETA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4656ETA+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 MAX4656ETA+T part is unused and in its original packaging.
Return procedure for MAX4656ETA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX4656ETA+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…
