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Vishay Siliconix DG2003DQ-T1-E3
- Part No.:
- DG2003DQ-T1-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
DG2003DQ-T1-E3.pdf
- Description:
- IC SW SPST-NOX2 2.5OHM 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,329
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Product details
Overview
DG2003DQ-T1-E3 from Vishay Siliconix is a dual SPST analog switch optimized for low-voltage portable systems, featuring 1.2 Ω typical on-resistance at 4.5 V, 13 ns turn-on time, and 1 pC charge injection - enabling high-fidelity signal routing in battery-powered audio and data acquisition circuits.
For engineers reviewing the DG2003DQ-T1-E3 datasheet, DG2003DQ-T1-E3 pinout, DG2003DQ-T1-E3 application, or DG2003DQ-T1-E3 equivalent, key selection criteria include supply voltage range (1.8–5.5 V), MSOP-8 thermal performance (320 mW at 25°C), leakage current ≤8 nA at 5.5 V, and TTL/CMOS-compatible logic thresholds.
Technical Context
The DG2003DQ-T1-E3 implements two independent single-pole/single-throw CMOS switches fabricated on Vishay's low-voltage JI2 process with epitaxial latchup protection. Each channel supports bidirectional analog conduction and blocks up to the positive supply rail when off.
It operates across –40°C to +85°C with guaranteed rON flatness of 0.2 Ω (at V+ = 4.5 V) and maintains <1 pC charge injection across its full analog input range (0 to V+), critical for precision sample-and-hold and multiplexing applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V - enables direct interface with 1.8 V, 2.5 V, 3.3 V, and 5 V logic and analog subsystems without level shifting. |
| On-Resistance (rON) | 1.2 Ω typical at V+ = 4.5 V - minimizes signal attenuation and distortion in audio paths and sensor front-ends. |
| Turn-On Time (tON) | 13 ns typical at V+ = 5 V - supports high-speed multiplexing in data converters and communication interfaces. |
| Charge Injection (QINJ) | 1 pC typical - reduces settling error in precision sampling circuits, preserving ADC accuracy. |
| Off-Leakage Current | ≤8 nA at V+ = 5.5 V - ensures minimal DC error in high-impedance sensor buffering and medical monitoring inputs. |
| Input Logic Compatibility | TTL/CMOS - accepts standard 0.8 V / 2.4 V thresholds, simplifying control integration with microcontrollers and FPGAs. |
| Package Thermal Rating | 320 mW at 25°C, derated 6.5 mW/°C above - defines maximum continuous power handling in compact MSOP-8 layouts. |
Pinout & Package
MSOP-8 package (3.0 mm × 3.0 mm × 1.0 mm height), thermally enhanced with exposed pad (not electrically connected), rated for surface-mount reflow per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NO1) | Normally Open Terminal 1 | Switch output node for Channel 1; connects to COM1 when IN1 = logic high. |
| 2 (V+) | Positive Supply Rail | Single positive supply input (1.8–5.5 V); powers internal CMOS switch core and level-shifting circuitry. |
| 3 (COM1) | Common Terminal 1 | Analog signal path junction for Channel 1; bidirectional conduction between NO1 and NC1. |
| 4 (IN1) | Channel 1 Digital Control Input | Active-high logic input controlling Channel 1; TTL/CMOS compatible (VINH ≥ 2.4 V at V+ = 5 V). |
| 5 (IN2) | Channel 2 Digital Control Input | Active-high logic input controlling Channel 2; independent timing and logic threshold from IN1. |
| 6 (COM2) | Common Terminal 2 | Analog signal path junction for Channel 2; isolated from COM1, supports dual independent switching. |
| 7 (GND) | Ground Reference | Return path for supply current and logic reference; must be low-impedance for noise-sensitive analog operation. |
| 8 (NO2) | Normally Open Terminal 2 | Switch output node for Channel 2; connects to COM2 when IN2 = logic high. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional analog signal routing | Enables flexible signal path design in both directions without polarity constraints - ideal for shared sensor or DAC lines. |
| Latchup-immune JI2 process | Epitaxial isolation prevents destructive latchup under overvoltage or ESD stress - enhances reliability in portable equipment. |
| Low 5 pF input capacitance | Minimizes loading on driving logic gates and preserves high-frequency integrity in dense PCB layouts. |
| 110 pF channel-on capacitance | Defines bandwidth limit (~3 MHz with 50 Ω source); suitable for audio and baseband data, not RF. |
| –67 dB crosstalk at 1 MHz | Ensures channel-to-channel isolation in dual-signal routing (e.g., stereo audio or differential sensor pairs). |
Applications
| Portable Audio Multiplexing | Medical Sensor Signal Routing |
|---|---|
|
Use Scenario: Switching between multiple microphone inputs or headphone outputs in Bluetooth headsets and wearables. IC Role / Device Role / Timing Role: Dual SPST analog switch managing bidirectional audio paths with minimal THD and pop/click suppression. Use Value: 1.2 Ω rON and 1 pC QINJ prevent audible artifacts during channel transitions in 1.8 V–3.3 V powered devices. |
Use Scenario: Selecting among ECG, SpO₂, or temperature sensor channels in handheld patient monitors. IC Role / Device Role / Timing Role: Low-leakage analog switch isolating high-impedance biopotential nodes during measurement cycles. Use Value: ≤8 nA off-leakage at 5.5 V ensures sub-μV DC offset drift, preserving diagnostic accuracy in millivolt-level signals. |
| Test Equipment Signal Conditioning | Battery-Powered Data Acquisition |
|
Use Scenario: Configuring input ranges and signal paths in handheld multimeters and oscilloscope probes. IC Role / Device Role / Timing Role: Precision analog switch enabling programmable gain and attenuation networks. Use Value: 0.2 Ω rON flatness over 0–V+ range guarantees consistent gain calibration across full input voltage span. |
Use Scenario: Multiplexing thermocouple, RTD, or strain gauge inputs in field-deployed environmental loggers. IC Role / Device Role / Timing Role: Low-power analog switch enabling duty-cycled sensor excitation and readout. Use Value: 0.02 μA supply current at standby extends battery life in multi-year deployments with infrequent sampling. |
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 |
|---|---|---|---|
| MAX4623EUA+ | Higher rON (3.5 Ω typ at 5 V), wider temp range (–40°C to +125°C), same MSOP-8 footprint. | Better suited for industrial environments requiring extended temperature operation; higher on-resistance limits use in ultra-low-distortion audio. | Select MAX4623EUA+ when operating beyond +85°C or where higher rON is acceptable for cost or availability reasons. |
| ADG721BRMZ | Lower leakage (100 pA max), lower rON (0.9 Ω typ), but only rated to 3.6 V supply - no 5 V operation. | Ideal for 1.8 V/3.3 V-only systems demanding ultra-low leakage; incompatible with mixed 5 V analog domains. | Select ADG721BRMZ when system supply is strictly ≤3.6 V and sub-nA leakage is mandatory for sensor front-ends. |
Compared with MAX4623EUA+ and ADG721BRMZ, the DG2003DQ-T1-E3 uniquely balances 5 V compatibility, 1.2 Ω rON, and 1 pC charge injection in a thermally efficient MSOP-8 package - making it optimal for portable 1.8–5.5 V systems prioritizing signal fidelity and board space.
Availability
DG2003DQ-T1-E3 is available at Aetrix Electronics and suitable for portable audio multiplexing, medical sensor routing, and battery-powered data acquisition requiring stable component supply across consumer, industrial, and test equipment programs.
Supply support for DG2003DQ-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, high-performance analog solutions for power, sensing, and signal conditioning.
The DG2003DQ-T1-E3 belongs to Vishay's low-voltage analog switch family, engineered specifically for portable and battery-operated systems demanding minimal power, small footprint, and precision analog switching performance.
FAQ
What is the maximum analog signal voltage range supported by the DG2003DQ-T1-E3?
The DG2003DQ-T1-E3 supports analog signals from 0 V to V+, where V+ ranges from 1.8 V to 5.5 V. For example, with a 3.3 V supply, the switch passes signals from 0 V to 3.3 V without clipping or distortion. Signals exceeding V+ are clamped by internal diodes, so external protection is required if overvoltage is possible. This rail-to-rail capability makes DG2003DQ-T1-E3 suitable for unipolar sensor and audio signal routing.
Does the DG2003DQ-T1-E3 support bidirectional signal flow?
Yes, the DG2003DQ-T1-E3 supports fully bidirectional analog signal flow on both channels. When enabled, each switch conducts equally well from COM to NO (or NC) and vice versa, with identical rON and capacitance characteristics in either direction. This symmetry is confirmed in the datasheet's "Each switch conducts equally well in both directions when on" statement and enables flexible PCB layout in applications like shared I²C pull-up lines or differential signal routing.
What is the thermal derating behavior of the DG2003DQ-T1-E3 in MSOP-8 package?
The DG2003DQ-T1-E3 in MSOP-8 has a power dissipation rating of 320 mW at 25°C, with linear derating of 6.5 mW/°C above that temperature. At 85°C ambient, usable power drops to approximately 281 mW. This derating is defined in the "Power Dissipation (Packages)" table and assumes proper PCB copper pour under the exposed pad. Engineers must verify junction temperature using θJA = 154°C/W (typical) to ensure reliability in enclosed or high-ambient environments.
How does the DG2003DQ-T1-E3 handle logic-level compatibility with 1.8 V microcontrollers?
The DG2003DQ-T1-E3 guarantees logic high recognition down to 1.6 V at V+ = 2.0 V, and 2.4 V at V+ = 5.0 V - meeting standard TTL/CMOS thresholds. With a 1.8 V supply, VINH is specified at 1.6 V (min), ensuring reliable activation from 1.8 V GPIOs without level shifters. Its 5 pF input capacitance also minimizes loading on low-drive-strength MCU pins, making DG2003DQ-T1-E3 a drop-in solution for modern ultra-low-voltage controllers.
Is the exposed pad on the MSOP-8 package of DG2003DQ-T1-E3 electrically connected?
No, the exposed pad on the MSOP-8 package of DG2003DQ-T1-E3 is not electrically connected to any internal circuitry - it serves solely as a thermal heatsink. Vishay's packaging documentation confirms it is a non-functional thermal pad, and the datasheet shows no internal connection symbol. It may be soldered to a thermal plane for improved heat dissipation but must remain floating (unconnected to GND or V+) to avoid unintended shorts or parasitic coupling.
DG2003DQ-T1-E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 2.5Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 1.8V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 28ns, 22ns
- -3db Bandwidth:
- -
- Charge Injection:
- 1pC
- Channel Capacitance (CS(off), CD(off)):
- 51pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -67dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP
DG2003DQ-T1-E3 FAQ
1.How can I place an order for DG2003DQ-T1-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG2003DQ-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 DG2003DQ-T1-E3 reliable?
The price and inventory of DG2003DQ-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 DG2003DQ-T1-E3 is usually 5 days.
3.What payment methods are accepted for DG2003DQ-T1-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG2003DQ-T1-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG2003DQ-T1-E3?
DG2003DQ-T1-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG2003DQ-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 DG2003DQ-T1-E3?
For technical support, including DG2003DQ-T1-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG2003DQ-T1-E3 requirements.
6.How does Aetrix verify that DG2003DQ-T1-E3 is sourced from the original manufacturer or authorized distributors?
All DG2003DQ-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 DG2003DQ-T1-E3 meets industry standards.
7.What is the process for return or replacement of DG2003DQ-T1-E3?
All DG2003DQ-T1-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG2003DQ-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 DG2003DQ-T1-E3 part is unused and in its original packaging.
Return procedure for DG2003DQ-T1-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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