My Inquiry
My Account
Vishay Siliconix DG3540DB-T1-E1
- Part No.:
- DG3540DB-T1-E1
- Manufacturer:
- Vishay Siliconix
- Package:
- PowerPAK® 1212-8SH
- Datasheet:
-
DG3540DB-T1-E1.pdf
- Description:
- IC SW SPST-NO/NCX2 3.5OHM 8PWRPK
- Quantity:
- Payment:
- Shipping:
Inventory:4,255
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DG3540DB-T1-E1 from Vishay Siliconix is a dual SPST analog switch optimized for high-fidelity audio, video, and USB 1.1 signal routing in portable electronics. It operates from 1.8 V to 5.5 V, delivers 3.5 Ω typical on-resistance at 4.2 V, supports 360 MHz −3 dB bandwidth, and features 0.2 Ω channel-to-channel RON matching - enabling low-distortion switching in cellular phone audio paths and media player line-level interfaces.
For engineers reviewing the DG3540DB-T1-E1 datasheet, DG3540DB-T1-E1 pinout, DG3540DB-T1-E1 application, or DG3540DB-T1-E1 equivalent, this page provides verified electrical parameters, MICRO FOOT® 8-bump package layout, real-world use cases in USB 1.1 data lines and stereo headphone switching, and two validated alternative parts with documented functional and interface differences.
Technical Context
The DG3540DB-T1-E1 implements two independent single-pole single-throw (SPST) switches with complementary logic control: IN1 and IN2 drive NO1/NO2 channels ON when logic high, while NC1/NC2 remain OFF. Its sub-micron CMOS process enables rail-to-rail analog signal swing (0 V to V+) and 1.6 V logic compatibility across the full 1.8–5.5 V supply range.
Dynamic performance includes 11 ns typical turn-on time (V+ = 4.2 V), 1 pC charge injection, and −78.5 dB off-isolation at 1 MHz - confirming suitability for low-noise, low-crosstalk applications such as stereo DAC output multiplexing and USB D+/D− line selection where signal integrity and timing precision are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance (RON) | 3.5 Ω typ. at V+ = 4.2 V - ensures minimal voltage drop and THD degradation in 16 Ω–10 kΩ audio loads |
| RON flatness | 0.8 Ω max. - maintains consistent gain across analog input range for linear signal routing |
| −3 dB bandwidth | 360 MHz - supports clean switching of USB 1.1 (12 Mbps) differential signals without edge distortion |
| Charge injection | 1 pC - limits glitch-induced pop/click in headphone amplifier outputs during switching |
| Off-isolation @ 1 MHz | −78.5 dB - suppresses crosstalk between adjacent audio channels or USB data pairs |
| Logic-compatible input | 1.6 V threshold - allows direct interfacing with 1.8 V I/O microcontrollers without level shifters |
| ESD rating | > 2 kV per HBM Method 3015.7 - provides robust handling in handheld device assembly and end-user environments |
Pinout & Package
MICRO FOOT® 8-bump chip-scale package (3 mm × 3 mm, 0.5 mm pitch, 238 µm bump height); Pb-free Sn/Ag/Cu terminations; bottom-side die attach with laser-marked top-side identification "3540" and traceability code.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1 | Digital control input for Channel 1 | Active-high logic: drives NO1 ON when ≥1.4 V (V+ = 3 V) or ≥2.0 V (V+ = 5 V) |
| IN2 | Digital control input for Channel 2 | Independent active-high logic input; no internal coupling to IN1 |
| NO1 | Normally-open terminal, Channel 1 | Connects to COM1 when IN1 = high; open-circuit when IN1 = low |
| NO2 | Normally-open terminal, Channel 2 | Connects to COM2 when IN2 = high; open-circuit when IN2 = low |
| COM1 | Common analog terminal, Channel 1 | Signal path junction between NO1 and internal switch; supports full rail swing (0 V to V+) |
| COM2 | Common analog terminal, Channel 2 | Independent analog path; electrically isolated from COM1 (no shared substrate coupling) |
| V+ | Positive supply rail | Single 1.8–5.5 V supply powers both analog and digital sections; no separate AVDD/DVDD required |
| GND | Ground reference | Common return for analog signal and digital logic; requires low-impedance PCB connection |
Key Features
| Feature | Design Value |
|---|---|
| High linearity | 0.2 Ω RON match + 0.8 Ω RON flatness minimizes harmonic distortion in audio band (20 Hz–20 kHz) |
| Rail-to-rail analog swing | Full 0 V to V+ signal range preserves dynamic headroom in battery-powered headphone amplifiers |
| Low power consumption | 1 µA max supply current enables always-on switching in low-power media player standby modes |
| High bandwidth | 360 MHz −3 dB bandwidth ensures <1% rise-time degradation for 12 Mbps USB 1.1 data edges |
| Small footprint | 3 mm × 3 mm MICRO FOOT® package saves >60% board area vs. comparable SOIC-8 analog switches |
Applications
| Cellular Phone Audio Routing | USB 1.1 Data Line Switching |
|---|---|
|
Use Scenario: Selecting between stereo DAC output and voice call microphone input in dual-mode smartphones. IC Role / Device Role / Timing Role: Dual SPST switch isolating analog paths with simultaneous channel control and <50 ns switching. Use Value: Eliminates need for discrete FETs or relays; 3.5 Ω RON prevents bass roll-off in 32 Ω earpiece loads. |
Use Scenario: Multiplexing USB D+ and D− lines between host controller and two peripheral ports in OTG-capable devices. IC Role / Device Role / Timing Role: Bidirectional analog switch maintaining signal integrity at 12 Mbps with <1 pC charge injection. Use Value: Enables USB port sharing without signal reflection or eye-diagram closure due to 360 MHz bandwidth. |
| MP3 Player Headphone Output | Media Player Line-Out Selection |
|
Use Scenario: Switching stereo headphone output between internal DAC and external line-in source in portable media players. IC Role / Device Role / Timing Role: Low-RON, low-charge-injection analog switch controlled by system MCU GPIOs. Use Value: Prevents audible pop/click during source change via 1 pC charge injection and rail-to-rail swing. |
Use Scenario: Routing line-out signals from multiple codecs (e.g., FM tuner, SD card audio) to a single 3.5 mm jack. IC Role / Device Role / Timing Role: Dual-channel analog multiplexer with matched RON ensuring balanced left/right channel gain. Use Value: 0.2 Ω RON matching avoids inter-channel volume imbalance in consumer-grade line outputs. |
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 |
|---|---|---|---|
| MAX4680EUB+ | Higher RON (6 Ω typ. at 3 V), lower bandwidth (200 MHz), ±15 V analog range | Better suited for industrial ±5 V signal routing; not optimized for 1.8 V logic or USB 1.1 | Select when wider analog voltage range or higher ESD tolerance (±4 kV) is required over bandwidth and low-voltage logic compatibility |
| TS5A23157DCUR | Lower RON (0.9 Ω typ. at 3.3 V), same 360 MHz bandwidth, 1.65–5.5 V supply | Superior THD performance in audio paths but lacks 1.8 V operation and has higher 10 nA leakage | Prefer for battery-powered audio where lowest distortion is critical; avoid if 1.8 V MCU interface or ultra-low leakage (<20 nA) is mandatory |
Compared with DG3540DB-T1-E1, MAX4680EUB+ trades bandwidth and low-voltage logic support for extended analog range, while TS5A23157DCUR improves RON and THD at the cost of 1.8 V compatibility and leakage performance - making DG3540DB-T1-E1 optimal for space-constrained, dual-rail portable designs requiring guaranteed 1.6 V logic compatibility and <20 nA leakage.
Availability
DG3540DB-T1-E1 is available at Aetrix Electronics and suitable for cellular phone audio routing, USB 1.1 data line switching, and MP3 player headphone output applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant Pb-free packaging.
Supply support for DG3540DB-T1-E1 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, high-performance analog solutions for automotive, industrial, and consumer markets.
The DG3540DB-T1-E1 belongs to Vishay's MICRO FOOT® analog switch family, engineered specifically for miniaturized portable electronics where low RON, high bandwidth, and ultra-small footprint are essential for audio, video, and USB signal routing.
FAQ
What is the maximum supply voltage rating for DG3540DB-T1-E1?
The DG3540DB-T1-E1 has an absolute maximum V+ to GND rating of +6.0 V. However, its specified operational range is 1.8 V to 5.5 V. Operating above 5.5 V risks permanent damage and violates the device's qualified reliability testing; sustained use at 6.0 V is not recommended. The DG3540DB-T1-E1 must be powered within its 1.8–5.5 V window to guarantee all published specifications including RON, bandwidth, and leakage current.
Does DG3540DB-T1-E1 support rail-to-rail analog signal switching?
Yes, the DG3540DB-T1-E1 supports full rail-to-rail analog signal switching: analog voltages on COM, NO, and NC terminals may swing from 0 V to V+ without clipping or increased distortion. This capability is confirmed in the datasheet's "Analog Signal Range" specification (0 V to V+) and is enabled by its sub-micron CMOS process. The DG3540DB-T1-E1 maintains 3.5 Ω RON and <1 pC charge injection across the entire 0–V+ range, making it suitable for headphone amplifier outputs and DAC interfaces.
What is the logic voltage threshold for DG3540DB-T1-E1 inputs at 3 V supply?
At V+ = 3 V, the DG3540DB-T1-E1 specifies a minimum input high voltage (VINH) of 1.4 V and maximum input low voltage (VINL) of 0.5 V. This 1.6 V logic-compatible window allows direct interfacing with 1.8 V I/O standards without level translation. The DG3540DB-T1-E1 remains fully functional across the −40 °C to +85 °C temperature range with these thresholds, as verified in the "Digital Control" section of the datasheet.
How does DG3540DB-T1-E1 handle ESD protection?
The DG3540DB-T1-E1 is rated for >2 kV human-body-model (HBM) ESD per JEDEC standard 3015.7, tested on all pins. This protection is integrated into the silicon structure and does not require external TVS diodes for basic handling robustness. The DG3540DB-T1-E1 achieves this via on-chip clamping diodes that route transient current to V+ or GND, limiting voltage excursion to safe levels. No additional ESD circuitry is needed for board-level compliance in consumer handheld applications.
Is DG3540DB-T1-E1 pin-compatible with other devices in the DG35xx family?
No, DG3540DB-T1-E1 is not pin-compatible with DG3537, DG3538, or DG3539 despite sharing the same MICRO FOOT® 8-bump package. Pin functions differ: DG3540DB-T1-E1 uses NO1/NO2 outputs, while DG3537 uses NO1/NO2, DG3538 uses NC1/NC2, and DG3539 mixes NO1/NC2. The DG3540DB-T1-E1 pinout (IN1, IN2, NO1, NO2, COM1, COM2, V+, GND) is unique to its dual-NO configuration and cannot be substituted without PCB redesign.
DG3540DB-T1-E1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPST - NO/NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 3.5Ohm
- Channel-to-Channel Matching (ΔRon):
- 200mOhm (Max)
- Voltage - Supply, Single (V+):
- 1.8V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 41ns, 37ns
- -3db Bandwidth:
- 360MHz
- Charge Injection:
- 1pC
- Channel Capacitance (CS(off), CD(off)):
- 8pF
- Current - Leakage (IS(off)) (Max):
- 2nA
- Crosstalk:
- -66dB @ 10MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerPAK® 1212-8SH
DG3540DB-T1-E1 FAQ
1.How can I place an order for DG3540DB-T1-E1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG3540DB-T1-E1 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 DG3540DB-T1-E1 reliable?
The price and inventory of DG3540DB-T1-E1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG3540DB-T1-E1 is usually 5 days.
3.What payment methods are accepted for DG3540DB-T1-E1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG3540DB-T1-E1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG3540DB-T1-E1?
DG3540DB-T1-E1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG3540DB-T1-E1 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 DG3540DB-T1-E1?
For technical support, including DG3540DB-T1-E1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG3540DB-T1-E1 requirements.
6.How does Aetrix verify that DG3540DB-T1-E1 is sourced from the original manufacturer or authorized distributors?
All DG3540DB-T1-E1 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 DG3540DB-T1-E1 meets industry standards.
7.What is the process for return or replacement of DG3540DB-T1-E1?
All DG3540DB-T1-E1 units undergo pre-shipment inspection (PSI). If there is an issue with DG3540DB-T1-E1, 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 DG3540DB-T1-E1 part is unused and in its original packaging.
Return procedure for DG3540DB-T1-E1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DG3540DB-T1-E1 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
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
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 …
