Vishay Siliconix DG611AEQ-T1-E3
- Part No.:
- DG611AEQ-T1-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
DG611AEQ-T1-E3.pdf
- Description:
- IC SW SPST-NCX4 115OHM 16TSSOP
- Quantity:
- Payment:

- Shipping:

Inventory:2,699
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Product details
Overview
DG611AEQ-T1-E3 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 delivers 1 pC typical charge injection, 2 pF off-capacitance, 720 MHz 3 dB bandwidth, and operates from 2.7 V to 12 V single supply or ±2.7 V to ±5 V dual supplies - ideal for automated test equipment and medical instrumentation front-end multiplexing.
For engineers reviewing the DG611AEQ-T1-E3 datasheet, DG611AEQ-T1-E3 pinout, DG611AEQ-T1-E3 application, or DG611AEQ-T1-E3 equivalent, key selection criteria include rail-to-rail analog signal handling, guaranteed 2 V logic-high compatibility at +5 V/±5 V, -40 °C to +125 °C operating range, and TSSOP-16 packaging with verified 115 Ω max RDS(on).
Technical Context
The DG611AEQ-T1-E3 implements four independent, bidirectional analog switches with NC logic polarity: logic low closes all switches, logic high opens them. Its CMOS architecture supports rail-to-rail analog voltage swing (–5 V to +5 V on dual supply, 0 V to +5 V on single supply) and features integrated ESD protection and internal diode clamping for overvoltage robustness.
Switching performance is characterized by 27 ns turn-on / 16 ns turn-off times (RL = 300 Ω, CL = 35 pF), 62 dB off-isolation and 90 dB crosstalk at 10 MHz, and <0.25 nA leakage at 85 °C - enabling high-fidelity signal integrity in data acquisition and sample-and-hold systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | Quad SPST, normally closed (NC) - all channels conduct when control input is logic low |
| RDS(on) Max | 115 Ω at ±5 V supply - ensures minimal signal attenuation and distortion in precision analog paths |
| Charge Injection | 1 pC typical - critical for low-error sample-and-hold and switched-capacitor circuit accuracy |
| 3 dB Bandwidth | 720 MHz - supports high-speed communication and wideband instrumentation signals |
| Off Capacitance | 2 pF source-off (CS(off)) - minimizes loading and crosstalk in high-impedance signal chains |
| Supply Range | +2.7 V to +12 V single supply or ±2.7 V to ±5 V dual supply - enables flexible system-level power architecture |
| Operating Temp | -40 °C to +125 °C - qualified for industrial and automotive under-hood environments |
Pinout & Package
Package: 16-lead TSSOP (JEDEC MS-012), body size 5.0 mm × 4.4 mm × 1.2 mm, lead pitch 0.65 mm, RoHS-compliant, halogen-free.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | IN1–IN4 | Digital control inputs - TTL/CMOS-compatible; 2 V min logic-high threshold at +5 V supply |
| 5, 6, 11, 12 | S1–S4 | Switch source terminals - NC configuration; connect to signal source side of each channel |
| 7, 8, 15, 16 | D1–D4 | Switch drain terminals - output side; bidirectional conduction supports signal routing in either direction |
| 9 | V+ | Positive supply rail - accepts up to +14 V (absolute max); defines upper analog signal limit |
| 10 | GND | Ground reference - common return for digital control and analog signal paths |
| 13 | V- | Negative supply rail - required for dual-supply operation; sets lower analog signal limit (e.g., –5 V) |
| 14 | NC | No connect - internally unconnected; must be left floating or tied to GND per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog switching | Full signal swing from V– to V+ (e.g., –5 V to +5 V) preserves dynamic range in precision ADC/DAC interfaces |
| Low charge injection (1 pC typ.) | Minimizes voltage glitch on hold capacitors - essential for sub-12-bit error in sample-and-hold circuits |
| High off-isolation (–62 dB @ 10 MHz) | Prevents signal bleed-through between inactive channels - critical for multi-channel ATE and medical sensor arrays |
| Ultra-low leakage (<0.25 nA @ 85 °C) | Reduces DC offset drift in high-impedance sensor front-ends and long-integration-time measurement systems |
| 720 MHz 3 dB bandwidth | Enables clean switching of video, RF sampling, and high-speed serial signals without amplitude roll-off |
Applications
| Automated Test Equipment (ATE) | Medical Instrumentation |
|---|---|
Use Scenario: Multiplexing multiple sensor inputs into a shared high-resolution ADC in modular ATE racks. IC Role / Device Role / Timing Role: Quad NC analog switch routing low-noise analog signals with minimal settling error and crosstalk. Use Value: 1 pC charge injection and 90 dB crosstalk ensure accurate multi-channel calibration without inter-channel interference. |
Use Scenario: Selecting EEG or ECG electrode pairs in portable patient monitors with battery-powered analog front-ends. IC Role / Device Role / Timing Role: Low-leakage, rail-to-rail SPST switch enabling precise biopotential signal conditioning before amplification. Use Value: <0.25 nA leakage at 85 °C prevents baseline drift in microvolt-level bio-signal measurements. |
| Precision Data Acquisition | High-Speed Communications |
Use Scenario: Channel selection in 16-bit+ data loggers capturing thermocouple, RTD, and strain gauge signals. IC Role / Device Role / Timing Role: Precision analog switch providing matched on-resistance (ΔRON ≤ 4 Ω) across all four channels. Use Value: 72 Ω typical RON and 4 Ω matching minimize gain error and channel-to-channel nonlinearity. |
Use Scenario: Signal path switching in optical transceiver modules requiring fast, low-distortion RF routing. IC Role / Device Role / Timing Role: High-bandwidth analog switch supporting >500 MHz signal integrity with 27 ns tON. Use Value: 720 MHz 3 dB bandwidth and 2 pF CS(off) maintain signal fidelity in 1–3 Gbps serial link test fixtures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4611ESE+ | Higher RDS(on) (180 Ω max), lower bandwidth (300 MHz), same TSSOP-16 package | Less suitable for >100 MSPS sampling; acceptable for general-purpose industrial I/O | Select when cost sensitivity outweighs bandwidth and charge injection requirements |
| ADG1411BRUZ | Lower RDS(on) (1.8 Ω typ.), higher supply voltage (up to ±15 V), larger 16-lead TSSOP footprint | Better for high-voltage industrial PLC analog modules; not drop-in due to different pinout | Choose for ultra-low on-resistance needs where PCB redesign is feasible |
Compared with MAX4611ESE+ and ADG1411BRUZ, DG611AEQ-T1-E3 offers optimal balance of bandwidth, charge injection, and temperature range in standard TSSOP-16 - making it preferred for space-constrained, high-fidelity ATE and medical designs where pin compatibility and proven reliability are critical.
Availability
DG611AEQ-T1-E3 is available at Aetrix Electronics and suitable for automated test equipment, medical instrumentation, and precision data acquisition requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DG611AEQ-T1-E3 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 switches, MOSFETs, and precision resistors for demanding industrial and automotive applications.
The DG611A family was engineered specifically for high-fidelity analog signal routing in test and measurement systems - emphasizing ultra-low charge injection, rail-to-rail operation, and extended temperature qualification (-40 °C to +125 °C).
FAQ
What is the logic configuration of DG611AEQ-T1-E3?
DG611AEQ-T1-E3 implements a normally closed (NC) quad SPST switch: all four channels conduct when the corresponding INx input is logic low (≤0.8 V), and open when logic high (≥2 V at +5 V supply). This differs from DG612A (NO) and DG613A (mixed NO/NC), and is confirmed in the truth table on page 2 of Vishay document 69904.
Does DG611AEQ-T1-E3 support single-supply operation?
Yes, DG611AEQ-T1-E3 fully supports single-supply operation from +2.7 V to +12 V, with full specifications provided at +3 V and +5 V. At +5 V, analog signal range is 0 V to +5 V, RDS(on) is 139 Ω (typ.), and tON/tOFF are 33 ns / 16 ns - all verified in Table 3 of the datasheet.
What is the maximum allowable analog signal voltage for DG611AEQ-T1-E3?
The absolute maximum analog signal voltage at any Sx or Dx pin is limited to (V+) + 0.3 V or (V–) – 0.3 V, per Absolute Maximum Ratings (page 3). With ±5 V supplies, this allows –5.3 V to +5.3 V; with +5 V/0 V supply, it allows –0.3 V to +5.3 V - internal clamping diodes protect against brief overvoltage events.
Is DG611AEQ-T1-E3 pin-compatible with older DG611 variants?
Yes, DG611AEQ-T1-E3 shares identical pinout and electrical specifications with legacy DG611 devices in TSSOP-16 packaging. The "A" suffix denotes improved performance (e.g., 1 pC vs. 3 pC charge injection), but mechanical and functional compatibility is maintained - confirmed by identical functional block diagrams and pin configurations across revisions.
What thermal derating applies to DG611AEQ-T1-E3 in TSSOP package?
For the 16-pin TSSOP package, DG611AEQ-T1-E3 requires derating of 5.6 mW/°C above +70 °C ambient, based on its 450 mW maximum power dissipation and 178 °C/W thermal resistance (θJA). This is specified in the Absolute Maximum Ratings table on page 3 of document 69904.
DG611AEQ-T1-E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 115Ohm
- Channel-to-Channel Matching (ΔRon):
- 700mOhm
- Voltage - Supply, Single (V+):
- 2.7V ~ 12V
- Voltage - Supply, Dual (V±):
- ±2.7V ~ 5V
- Switch Time (Ton, Toff) (Max):
- 55ns, 35ns
- -3db Bandwidth:
- 720MHz
- Charge Injection:
- 1pC
- Channel Capacitance (CS(off), CD(off)):
- 2pF, 3pF
- Current - Leakage (IS(off)) (Max):
- 100pA
- Crosstalk:
- -90dB @ 10MHz
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
DG611AEQ-T1-E3 FAQ
1.How can I place an order for DG611AEQ-T1-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG611AEQ-T1-E3 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 DG611AEQ-T1-E3 reliable?
The price and inventory of DG611AEQ-T1-E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG611AEQ-T1-E3 is usually 5 days.
3.What payment methods are accepted for DG611AEQ-T1-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG611AEQ-T1-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG611AEQ-T1-E3?
DG611AEQ-T1-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG611AEQ-T1-E3 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 DG611AEQ-T1-E3?
For technical support, including DG611AEQ-T1-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG611AEQ-T1-E3 requirements.
6.How does Aetrix verify that DG611AEQ-T1-E3 is sourced from the original manufacturer or authorized distributors?
All DG611AEQ-T1-E3 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 DG611AEQ-T1-E3 meets industry standards.
7.What is the process for return or replacement of DG611AEQ-T1-E3?
All DG611AEQ-T1-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG611AEQ-T1-E3, 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 DG611AEQ-T1-E3 part is unused and in its original packaging.
Return procedure for DG611AEQ-T1-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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