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Vishay Siliconix DG2788ADN-T1-E4
- Part No.:
- DG2788ADN-T1-E4
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-UFQFN
- Datasheet:
-
DG2788ADN-T1-E4.pdf
- Description:
- IC SW DPDTX2 500MOHM 16MINIQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,801
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Product details
Overview
DG2788ADN-T1-E4 from Vishay Siliconix is a quad SPDT / dual DPDT analog switch IC designed for high-fidelity signal routing in space-constrained portable electronics. It operates from 1.8 V to 5.5 V single supply, delivers 0.37 Ω typical on-resistance at 2.7 V, 338 MHz bandwidth, and −82 dB off-isolation at 100 kHz - enabling low-distortion analog and digital signal switching in smartphones and optical image stabilization modules.
For engineers reviewing the DG2788ADN-T1-E4 datasheet, DG2788ADN-T1-E4 pinout, DG2788ADN-T1-E4 application, or DG2788ADN-T1-E4 equivalent, key selection criteria include rail-to-rail signal swing capability, break-before-make timing, charge injection (−245 pC), low control threshold (1.2 V logic high), and miniQFN-16 package compatibility with high-density PCB layouts.
Technical Context
The DG2788ADN-T1-E4 implements four independent SPDT switches (or two DPDT sets) with binary control inputs, supporting bidirectional rail-to-rail analog signal paths up to V+. Its architecture features matched RON flatness (±0.05 Ω) and highly symmetric parasitic capacitance (CNO(on) = CNC(on) = 26 pF; CNO(off) = CNC(off) = 14.5 pF), ensuring minimal crosstalk (−87 dB at 100 kHz) and THD+N of −104.1 dB at 1 kHz.
It employs internal diode clamping for overvoltage protection on NC/NO/COM pins, supports power-down protection, and guarantees logic thresholds of 1.2 V (high) and 0.3 V (low) across −40 °C to +85 °C. Propagation delay is 0.1 ns typical for fast-edge pulsing signals, with turn-on/turn-off times of 30 μs / 0.35 μs under 50 Ω/35 pF load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V single rail - enables direct interface with 1.8 V, 3.3 V, and 5 V logic and analog systems without level shifters. |
| On-Resistance (RON) | 0.37 Ω typical at 2.7 V - minimizes voltage drop and power loss in precision signal paths and battery-powered applications. |
| Bandwidth | 338 MHz - supports high-speed video, USB 2.0, and fast data acquisition without attenuation or phase distortion. |
| Off-Isolation | −82 dB at 100 kHz - ensures strong channel separation in multi-channel instrumentation and audio routing. |
| Charge Injection | −245 pC - reduces glitch-induced errors in sample-and-hold and ADC front-end circuits. |
| Propagation Delay | 0.1 ns typical - preserves signal edge integrity for high-speed digital control and pulse-width modulation routing. |
| THD+N | −104.1 dB at 1 kHz - maintains audio fidelity and sensor signal accuracy in medical and portable instrumentation. |
Pinout & Package
The DG2788ADN-T1-E4 is housed in a miniQFN-16 package measuring 2.6 mm × 1.8 mm × 0.55 mm, with exposed thermal pad and pin 1 marked by a long lead on the top surface. The package is Pb-free, RoHS-compliant, and qualified for reflow per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | Control Inputs (IN1–IN4) | Binary logic inputs controlling respective SPDT switch states; compatible with 1.2 V logic high threshold. |
| 5, 6, 7, 8 | Normally Closed (NC1–NC4) | Analog terminals connected to COM when control input is logic low; clamped to V+ ± 0.3 V. |
| 9, 10, 11, 12 | Common (COM1–COM4) | Center-pole analog nodes; support rail-to-rail signal swing and bidirectional conduction. |
| 13, 14, 15, 16 | Normally Open (NO1–NO4) | Analog terminals connected to COM when control input is logic high; matched capacitance and RON to NC pins. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals from GND to V+ without clipping - essential for full-scale sensor and audio interfaces. |
| Break-before-make switching | Guaranteed td ≥ 1 ns - prevents momentary shorting between NC and NO paths during state transitions. |
| Low and flat RON | 0.37 Ω typical, ±0.05 Ω flatness over full signal range - ensures consistent gain and linearity in multiplexer applications. |
| Power-down protection | Prevents back-drive current flow when V+ = 0 V - protects upstream circuitry during hot-swap or sleep mode. |
| ESD robustness | HBM > 2 kV - enhances reliability in handheld device assembly and end-user handling environments. |
Applications
| Smartphone Camera OIS | Portable Medical Sensor Hub |
|---|---|
Use Scenario: Routing analog feedback signals between gyroscope, accelerometer, and voice coil motor drivers in optical image stabilization subsystems. IC Role / Device Role / Timing Role: Quad SPDT analog switch providing low-latency, low-noise signal path selection with <0.1 ns propagation delay. Use Value: Enables sub-millisecond actuator response and <−104 dB THD+N for jitter-free image stabilization in compact camera modules. | Use Scenario: Multiplexing ECG, SpO₂, and temperature sensor outputs into a shared ADC channel in wearable health monitors. IC Role / Device Role / Timing Role: Low-RON, low-charge-injection analog switch minimizing baseline drift and cross-channel interference. Use Value: Delivers 0.37 Ω RON and −245 pC charge injection to preserve microvolt-level biopotential signal integrity. |
| USB 2.0 Signal Switching | Industrial Data Acquisition MUX |
Use Scenario: Selecting between dual USB host ports or routing differential D+/D− lines in portable docking stations. IC Role / Device Role / Timing Role: High-bandwidth (338 MHz) analog switch maintaining signal integrity across 480 Mbps data rates. Use Value: Achieves −82 dB off-isolation and matched 26 pF on-capacitance to minimize eye diagram degradation. | Use Scenario: Scanning multiple thermocouple or RTD inputs into a precision sigma-delta ADC in field-mounted PLC modules. IC Role / Device Role / Timing Role: Rail-to-rail, low-leakage (±2 μA max off-leakage) analog multiplexer for millivolt-level measurements. Use Value: Ensures <0.6 Ω RON max and <±0.5 μA leakage across −40 °C to +85 °C for stable calibration and low offset error. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4678ETE+ | Higher RON (0.7 Ω typ), larger TQFN-16 (3 mm × 3 mm), no guaranteed 1.2 V logic high threshold | Less suitable for 1.8 V logic domains and ultra-compact layouts | Select DG2788ADN-T1-E4 for space-constrained 1.8 V–3.3 V systems requiring lowest RON and smallest footprint. |
| TS5A3157DCKR | Single SPDT, smaller SC70-6 package, lower bandwidth (200 MHz), higher RON (0.75 Ω typ) | Requires four devices to match quad functionality; lacks DPDT configuration flexibility | Choose DG2788ADN-T1-E4 when dual DPDT topology or integrated quad routing is required without board area penalty. |
Compared with MAX4678ETE+ and TS5A3157DCKR, the DG2788ADN-T1-E4 provides superior RON flatness, smaller miniQFN-16 footprint, guaranteed low-voltage logic compatibility, and native dual-DPDT configuration - making it optimal for high-density portable instrumentation where signal fidelity and layout efficiency are co-critical.
Availability
DG2788ADN-T1-E4 is available at Aetrix Electronics and suitable for smartphone camera modules, portable medical sensors, USB 2.0 peripheral switching, industrial data acquisition, and optical image stabilization systems requiring stable component supply and long-term production continuity.
Supply support for DG2788ADN-T1-E4 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-performance analog switches, MOSFETs, and precision resistors for demanding industrial and consumer applications.
The DG2788ADN-T1-E4 belongs to Vishay's low-RON analog switch product line, engineered specifically for high-fidelity, low-power signal routing in portable and space-constrained electronics where rail-to-rail operation and minimal charge injection are critical.
FAQ
What is the maximum supply voltage rating for the DG2788ADN-T1-E4?
The DG2788ADN-T1-E4 has an absolute maximum supply voltage (V+) of +6 V, but its functional operating range is specified from 1.8 V to 5.5 V. Operating above 5.5 V may cause permanent damage or violate guaranteed performance parameters such as RON, leakage, and switching thresholds. Always observe the 5.5 V upper limit in normal operation to ensure compliance with the datasheet specifications for DG2788ADN-T1-E4.
Does the DG2788ADN-T1-E4 support bidirectional analog signal routing?
Yes, the DG2788ADN-T1-E4 supports fully bidirectional analog signal routing across all COM–NC and COM–NO paths. Its symmetrical RON and matched parasitic capacitance enable equal conduction in both directions, allowing use as both multiplexers and demultiplexers without signal polarity constraints - a core design feature confirmed in the DG2788ADN-T1-E4 datasheet truth table and functional description.
What is the thermal pad connection requirement for the DG2788ADN-T1-E4 miniQFN-16 package?
The DG2788ADN-T1-E4 miniQFN-16 package includes an exposed thermal pad on the bottom surface that must be soldered to a PCB copper pour for thermal and electrical stability. Vishay recommends connecting the pad to GND via multiple vias to improve heat dissipation and reduce thermal resistance. The pad is not electrically isolated and forms part of the internal ground reference - proper connection is essential for achieving rated power dissipation (525 mW) and long-term reliability of DG2788ADN-T1-E4.
How does the DG2788ADN-T1-E4 handle overvoltage conditions on analog pins?
The DG2788ADN-T1-E4 incorporates internal ESD diodes that clamp analog pins (NC, NO, COM) to V+ and GND. Signals exceeding V+ by more than 0.3 V or falling below GND by more than 0.3 V will be clamped, provided forward diode current remains within the absolute maximum rating of ±300 mA. This protection allows safe operation with transient overvoltages in portable systems, but sustained overvoltage must be limited per the DG2788ADN-T1-E4 absolute maximum ratings table.
Is the DG2788ADN-T1-E4 pin-compatible with other Vishay analog switches like the DG2787A?
No, the DG2788ADN-T1-E4 is not pin-compatible with the DG2787A. While both are quad SPDT switches in miniQFN-16 packages, their pin assignments differ: DG2788ADN-T1-E4 assigns control inputs to pins 1–4 and NC/COM/NO in sequential groups, whereas DG2787A uses interleaved control and analog pins. Layout reuse is not possible without redesign. Always verify pin mapping using the official DG2788ADN-T1-E4 datasheet before substitution.
DG2788ADN-T1-E4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- DPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 500mOhm
- Channel-to-Channel Matching (ΔRon):
- 50mOhm
- Voltage - Supply, Single (V+):
- 1.8V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 50µs, 1µs
- -3db Bandwidth:
- 338MHz
- Charge Injection:
- -245pC
- Channel Capacitance (CS(off), CD(off)):
- -
- Current - Leakage (IS(off)) (Max):
- 100nA
- Crosstalk:
- -61dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-miniQFN (1.8x2.6)
DG2788ADN-T1-E4 FAQ
1.How can I place an order for DG2788ADN-T1-E4 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG2788ADN-T1-E4 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 DG2788ADN-T1-E4 reliable?
The price and inventory of DG2788ADN-T1-E4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG2788ADN-T1-E4 is usually 5 days.
3.What payment methods are accepted for DG2788ADN-T1-E4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG2788ADN-T1-E4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG2788ADN-T1-E4?
DG2788ADN-T1-E4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG2788ADN-T1-E4 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 DG2788ADN-T1-E4?
For technical support, including DG2788ADN-T1-E4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG2788ADN-T1-E4 requirements.
6.How does Aetrix verify that DG2788ADN-T1-E4 is sourced from the original manufacturer or authorized distributors?
All DG2788ADN-T1-E4 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 DG2788ADN-T1-E4 meets industry standards.
7.What is the process for return or replacement of DG2788ADN-T1-E4?
All DG2788ADN-T1-E4 units undergo pre-shipment inspection (PSI). If there is an issue with DG2788ADN-T1-E4, 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 DG2788ADN-T1-E4 part is unused and in its original packaging.
Return procedure for DG2788ADN-T1-E4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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