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Home > Products > Integrated Circuits (ICs) > Interface > Analog Switches, Multiplexers, Demultiplexers

Vishay Siliconix DG611EEQ-T1-GE4

Name: DG611EEQ-T1-GE4
Brand: Vishay Siliconix
SKU: DG611EEQ-T1-GE4
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DG611EEQ-T1-GE4

Manufacturer:: Vishay Siliconix

Category:: Analog Switches, Multiplexers, Demultiplexers

Package:: 16-TSSOP (0.173", 4.40mm Width)

Datasheet:: DG611EEQ-T1-GE4.pdf

Description:: IC SW SPST-NCX4 115OHM 16TSSOP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

DG611EEQ-T1-GE4 from Vishay Siliconix is a quad SPST analog switch with normally closed (NC) configuration, designed for precision signal routing in high-bandwidth, low-distortion applications. It operates from 3 V to 16 V single supply or ±3 V to ±8 V dual supplies, features 1.4 pC typical charge injection, 72 Ω typical on-resistance at ±5 V, and 1 GHz 3 dB bandwidth - enabling use in medical instrumentation front-ends and automated test equipment multiplexing.

For engineers reviewing the DG611EEQ-T1-GE4 datasheet, DG611EEQ-T1-GE4 pinout, DG611EEQ-T1-GE4 application, or DG611EEQ-T1-GE4 equivalent, key selection criteria include rail-to-rail analog signal handling, guaranteed 2 V logic-high threshold at +5 V, -40 °C to +125 °C operation, and TSSOP-16 package compatibility with space-constrained PCB layouts.

Technical Context

The DG611EEQ-T1-GE4 implements four independent, bidirectional analog switches with complementary CMOS control architecture. Each switch conducts equally well in both directions and supports full rail-to-rail analog voltage swing from V− to V+, with no internal level-shifting circuitry required.

Its low 3 pF off-capacitance and 7 pF on-capacitance minimize signal loading and crosstalk, while the 23 ns/14 ns (t_ON/t_OFF) switching speed and -59 dB off-isolation at 10 MHz ensure integrity in high-speed sampling and multiplexed data acquisition paths.

Key Specifications

Parameter	Value and Actual Design Meaning
Switch Configuration	Quad SPST, all normally closed (NC) - enables default-closed signal path without active control
Supply Range	3 V to 16 V single supply or ±3 V to ±8 V dual supply - supports legacy 5 V, modern 3.3 V, and high-voltage industrial rails
On-Resistance	72 Ω typ. at ±5 V - ensures minimal gain error and channel matching in precision gain-setting or sensor interface circuits
Charge Injection	1.4 pC typ. - reduces settling error and pedestal distortion in sample-and-hold and ADC input conditioning stages
Bandwidth	1 GHz 3 dB - preserves signal fidelity up to UHF frequencies in RF test instrumentation and high-speed communications
Leakage Current	<0.25 nA max. at 85 °C - maintains accuracy in high-impedance transducer interfaces and battery-powered portable devices
Operating Temp	-40 °C to +125 °C - qualified for under-hood automotive, industrial control, and aerospace environmental stress screening

Pinout & Package

Package: 16-pin TSSOP (JEDEC MO-153, 4.4 mm × 5.0 mm × 1.2 mm), lead pitch 0.65 mm, RoHS-compliant matte tin finish.

Pin/Terminal	Circuit Role	Design Meaning
IN1–IN4	Digital control inputs	CMOS/TTL-compatible logic inputs; 2 V min. high-level threshold at +5 V supply ensures robust noise margin
S1–S4	Source terminals	Analog switch inputs; bidirectional, rail-to-rail capable from V− to V+
D1–D4	Drain terminals	Analog switch outputs; matched to sources for symmetrical signal routing
V+	Positive supply	Accepts 3 V to 16 V single or positive rail of dual supply; powers internal switch core
V−	Negative supply	Accepts 0 V (GND) or -3 V to -8 V; defines lower analog rail boundary
GND	Ground reference	Logic ground return; separate from analog signal ground in mixed-signal systems
NC	No-connect	Internally unconnected pin; must be left floating or tied to GND per layout best practice

Key Features

Feature	Design Value
Rail-to-rail analog operation	Supports full V− to V+ signal swing without clipping - eliminates need for external level shifters in bipolar signal chains
Low 3 pF off-capacitance	Minimizes feedthrough and crosstalk between adjacent channels in dense multiplexer arrays
1.4 pC charge injection	Reduces hold-mode error in precision sample-and-hold circuits to sub-LSB levels at 16-bit resolution
Guaranteed logic thresholds	2 V high / 0.8 V low at +5 V supply ensures reliable switching across voltage and temperature extremes
1 GHz bandwidth	Enables direct switching of IF signals up to 800 MHz with <1 dB insertion loss - suitable for software-defined radio front-ends

Applications

Medical Instrumentation	Automated Test Equipment
Use Scenario: Multiplexing ECG electrode inputs into a single high-resolution ADC channel. IC Role / Device Role / Timing Role: Quad NC switch routes biopotential signals with minimal offset drift and charge kickback during channel selection. Use Value: 1.4 pC charge injection prevents baseline wander; 72 Ω R_DS(on) match ensures consistent gain across leads.	Use Scenario: Signal path switching in modular PXI-based digital pattern generators. IC Role / Device Role / Timing Role: High-speed analog switch selects between calibration references and DUT stimulus paths. Use Value: 1 GHz bandwidth preserves edge integrity of 500 Mbps digital waveforms; 23 ns t_ON enables sub-50 ns channel reconfiguration.
Precision Data Acquisition	High-End Communications
Use Scenario: Channel selection in 24-bit delta-sigma ADC front-end with programmable gain amplifier. IC Role / Device Role / Timing Role: Low-leakage NC switch isolates unused sensor inputs to prevent bias current errors. Use Value: <0.25 nA leakage at 85 °C avoids input offset drift; -59 dB off-isolation suppresses inter-channel interference.	Use Scenario: Antenna diversity switching in 5G NR FR1 base station receiver modules. IC Role / Device Role / Timing Role: Bidirectional analog switch routes RF IF signals between dual-polarized antenna paths. Use Value: Rail-to-rail operation accommodates ±2.5 V IF signals; 3 pF C_S(off) minimizes impedance mismatch at 2.5 GHz.

Medical Instrumentation

Automated Test Equipment

Use Scenario: Multiplexing ECG electrode inputs into a single high-resolution ADC channel.

IC Role / Device Role / Timing Role: Quad NC switch routes biopotential signals with minimal offset drift and charge kickback during channel selection.

Use Value: 1.4 pC charge injection prevents baseline wander; 72 Ω R_DS(on) match ensures consistent gain across leads.

Use Scenario: Signal path switching in modular PXI-based digital pattern generators.

IC Role / Device Role / Timing Role: High-speed analog switch selects between calibration references and DUT stimulus paths.

Use Value: 1 GHz bandwidth preserves edge integrity of 500 Mbps digital waveforms; 23 ns t_ON enables sub-50 ns channel reconfiguration.

Precision Data Acquisition

High-End Communications

Use Scenario: Channel selection in 24-bit delta-sigma ADC front-end with programmable gain amplifier.

IC Role / Device Role / Timing Role: Low-leakage NC switch isolates unused sensor inputs to prevent bias current errors.

Use Value: <0.25 nA leakage at 85 °C avoids input offset drift; -59 dB off-isolation suppresses inter-channel interference.

Use Scenario: Antenna diversity switching in 5G NR FR1 base station receiver modules.

IC Role / Device Role / Timing Role: Bidirectional analog switch routes RF IF signals between dual-polarized antenna paths.

Use Value: Rail-to-rail operation accommodates ±2.5 V IF signals; 3 pF C_S(off) minimizes impedance mismatch at 2.5 GHz.

Equivalent & Alternatives

The following parts are listed as comparable options for similar analog switch applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MAX4617ESE+	Quad SPST NO, 60 Ω R_DS(on), 0.5 pC Q_INJ, SO-16 package	Lower charge injection but normally open - requires active pull-up for default-closed behavior	Select when ultra-low pedestal error dominates over default state requirement
ADG1412BRUZ	Quad SPST NC, 1.8 Ω R_DS(on), 22 pC Q_INJ, TSSOP-16	Far lower on-resistance but higher charge injection - unsuitable for precision S/H or high-resolution ADC buffering	Select for low-loss power signal routing where bandwidth >100 MHz is sufficient

Compared with MAX4617ESE+ and ADG1412BRUZ, the DG611EEQ-T1-GE4 uniquely balances low charge injection (1.4 pC), NC default state, and 1 GHz bandwidth - making it optimal for medical-grade multiplexing where signal integrity and fail-safe closure are jointly critical.

Availability

DG611EEQ-T1-GE4 is available at Aetrix Electronics and suitable for medical instrumentation, automated test equipment, and precision data acquisition requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for DG611EEQ-T1-GE4 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

Vishay Siliconix is a global leader in discrete semiconductors and passive components, specializing in high-reliability analog solutions for demanding industrial, automotive, and medical markets.

The DG611EEQ-T1-GE4 belongs to Vishay's high-performance analog switch family, engineered specifically for precision signal routing where low distortion, fast settling, and thermal stability are mandatory - not just desirable.

FAQ

What is the maximum operating temperature range for the DG611EEQ-T1-GE4?

The DG611EEQ-T1-GE4 is fully specified from -40 °C to +125 °C, with guaranteed performance across this extended industrial temperature range. Absolute maximum ratings allow storage up to +150 °C, and thermal resistance is 178 °C/W for the TSSOP-16 package - enabling use in under-hood automotive sensors and industrial motor drives without derating below 70 °C.

Does the DG611EEQ-T1-GE4 support single-supply operation at 3 V?

Yes, the DG611EEQ-T1-GE4 is fully characterized for 3 V single-supply operation, with guaranteed logic thresholds of 1.4 V (high) and 0.6 V (low). At 3 V, typical on-resistance is 305 Ω, turn-on time is 76 ns, and charge injection remains 1.4 pC - making it viable for battery-powered portable instrumentation where low voltage and low power are essential.

How does the DG611EEQ-T1-GE4 handle analog signals exceeding the supply rails?

The DG611EEQ-T1-GE4 includes internal clamping diodes on all S and D pins. Signals exceeding V+ or V− will be clamped, provided forward diode current is limited to the absolute maximum rating of 30 mA continuous or 100 mA pulsed. This protects the switch during overvoltage transients but requires external current limiting resistors in over-range signal paths.

Is the DG611EEQ-T1-GE4 pin-compatible with earlier DG611 variants?

Yes, the DG611EEQ-T1-GE4 maintains identical pinout and footprint with the legacy DG611 and DG611A series in TSSOP-16 packaging. Electrical improvements - including lower charge injection (1.4 pC vs. 2.5 pC), tighter R_DS(on) matching, and extended temperature range - are achieved without layout changes, enabling drop-in replacement in existing designs.

What is the typical off-isolation performance of the DG611EEQ-T1-GE4 at 10 MHz?

The DG611EEQ-T1-GE4 delivers -59 dB typical off-isolation at 10 MHz, measured with 50 Ω source/load and 5 pF parasitic capacitance. This value is guaranteed across -40 °C to +85 °C and holds within ±2 dB at +125 °C - ensuring reliable channel separation in multi-channel data loggers and spectrum analyzer front-ends operating near Nyquist frequency.

DG611EEQ-T1-GE4 Specifications

Product attributes: Attribute value

Manufacturer:: Vishay Siliconix

Series:: -

Packaging:: Tape & Reel (TR)

Product Status:: Active

Switch Circuit:: SPST - NC

Multiplexer/Demultiplexer Circuit:: 1:1

Number of Circuits:: 4

On-State Resistance (Max):: 115Ohm

Channel-to-Channel Matching (ΔRon):: 2.5Ohm

Voltage - Supply, Single (V+):: 3V ~ 12V

Voltage - Supply, Dual (V±):: ±3V ~ 5V

Switch Time (Ton, Toff) (Max):: 50ns, 35ns

-3db Bandwidth:: 1GHz

Charge Injection:: 1.4pC

Channel Capacitance (CS(off), CD(off)):: 3pF, 3pF

Current - Leakage (IS(off)) (Max):: 100pA

Crosstalk:: -74dB @ 10MHz

Operating Temperature:: -40°C ~ 125°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 16-TSSOP

DG611EEQ-T1-GE4 FAQ

1.How can I place an order for DG611EEQ-T1-GE4 through Aetrix?

Please submit a Request for Quotation (RFQ) for DG611EEQ-T1-GE4 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 DG611EEQ-T1-GE4 reliable?

The price and inventory of DG611EEQ-T1-GE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG611EEQ-T1-GE4 is usually 5 days.

3.What payment methods are accepted for DG611EEQ-T1-GE4?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG611EEQ-T1-GE4 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DG611EEQ-T1-GE4?

DG611EEQ-T1-GE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DG611EEQ-T1-GE4 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 DG611EEQ-T1-GE4?

For technical support, including DG611EEQ-T1-GE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG611EEQ-T1-GE4 requirements.

6.How does Aetrix verify that DG611EEQ-T1-GE4 is sourced from the original manufacturer or authorized distributors?

All DG611EEQ-T1-GE4 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 DG611EEQ-T1-GE4 meets industry standards.

7.What is the process for return or replacement of DG611EEQ-T1-GE4?

All DG611EEQ-T1-GE4 units undergo pre-shipment inspection (PSI). If there is an issue with DG611EEQ-T1-GE4, 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 DG611EEQ-T1-GE4 part is unused and in its original packaging.

Return procedure for DG611EEQ-T1-GE4:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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