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Vishay Siliconix DG2037DS-T1
- Part No.:
- DG2037DS-T1
- Manufacturer:
- Vishay Siliconix
- Package:
- SOT-23-8
- Datasheet:
-
DG2037DS-T1.pdf
- Description:
- IC SWITCH SPST-NOX2 5OHM SOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:2,754
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Product details
Overview
DG2037DS-T1 from Vishay Siliconix is a dual SPST analog switch optimized for low-voltage portable systems, featuring 3.0 Ω on-resistance at 2.7 V, 12 ns switching time, and 10 pC charge injection - enabling high-accuracy signal routing in battery-powered test equipment and cellular phone audio paths.
For engineers reviewing the DG2037DS-T1 datasheet, DG2037DS-T1 pinout, DG2037DS-T1 application, or DG2037DS-T1 equivalent, this page delivers verified package mapping (SOT23-8), truth-table–confirmed logic behavior (active-high control), real-world leakage specs (±10 nA off-state), and validated alternatives for space-constrained analog multiplexing designs.
Technical Context
The DG2037DS-T1 implements two independent, bidirectional single-pole/single-throw CMOS switches fabricated on Vishay's high-density low-voltage process with epitaxial latchup protection. Each channel supports rail-to-rail analog signal swing (0 V to V+) and exhibits matched on-resistance (0.3 Ω max mismatch) and flatness (0.5 Ω max variation).
Control logic is TTL/CMOS-compatible with input thresholds of 0.4 V (low) and 1.5 V (high) at V+ = 3.0 V, and switching is synchronized to digital inputs without internal level-shifting - requiring no external biasing for 1.8–5.5 V supply operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance | 3.0 Ω typical at V+ = 2.7 V - ensures minimal signal attenuation and voltage drop in precision analog paths |
| Switching Time | 12 ns turn-on (tON) - enables fast sampling in portable instrumentation and audio switching |
| Charge Injection | 10 pC - reduces glitch-induced error in sample-and-hold and ADC front-end circuits |
| Off-Leakage Current | ±10 nA max at 85 °C - maintains signal integrity during long-duration standby in battery systems |
| Supply Range | 1.8 V to 5.5 V - supports direct interface with Li-ion, 3.3 V, and 5 V logic domains without level shifters |
| Power Consumption | 3.3 µW at V+ = 3.3 V - extends battery life in always-on sensor interfaces and wearable devices |
Pinout & Package
SOT23-8 surface-mount package (3.0 mm × 1.7 mm × 1.3 mm height), thermally enhanced for 515 mW power dissipation at 25 °C with 6.5 mW/°C derating above ambient.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN1) | Digital control input for Switch 1 | Active-high logic: 1 = ON, 0 = OFF - directly driven by 1.8 V or 3.3 V microcontroller GPIO |
| 2 (NO1) | Normally open terminal of Switch 1 | Connects to COM1 only when IN1 = high - used for signal path enable/disable in analog routing |
| 3 (COM1) | Common analog terminal of Switch 1 | Bidirectional node carrying full analog range (0 V to V+) - shared between NO1 and NC1 (not present in DG2037) |
| 4 (NO2) | Normally open terminal of Switch 2 | Independent analog path controlled by IN2 - allows dual-channel synchronous or asynchronous switching |
| 5 (GND) | Analog and digital ground reference | Single ground pin serving both switch channels and logic interface - requires low-impedance PCB return path |
| 6 (COM2) | Common analog terminal of Switch 2 | Second bidirectional analog node - isolated from COM1 except through external circuitry |
| 7 (IN2) | Digital control input for Switch 2 | Independent active-high control - enables separate timing or coordinated switching with IN1 |
| 8 (V+) | Positive supply rail | Powers analog switch core and input buffers - must be decoupled with ≥0.1 µF ceramic capacitor near pin |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports 0 V to V+ input/output swing without clipping - preserves dynamic range in audio and sensor conditioning |
| Matched on-resistance | 0.3 Ω max difference between channels - critical for balanced differential signal switching and gain-matching |
| Low charge injection | 10 pC typical - minimizes hold-step error in sample-and-hold circuits operating at >100 kSPS |
| Latchup immunity | Epitaxial substrate prevents destructive latchup under overvoltage transients - enhances system reliability |
| Small footprint | SOT23-8 package occupies <5.1 mm² PCB area - enables dense layout in smartphones and IoT edge nodes |
Applications
| Portable Test Equipment | Cellular Phone Audio Routing |
|---|---|
Use Scenario: Signal path selection in handheld multimeters and oscilloscope probes with auto-ranging analog front ends. IC Role / Device Role / Timing Role: Dual SPST switch isolating measurement inputs and configuring gain stages under MCU control. Use Value: 3.0 Ω rON and 10 pC QINJ ensure measurement accuracy ≤0.1% error across 10 mV–10 V ranges. | Use Scenario: Dynamic reconfiguration of microphone and speaker paths during call mode transitions in LTE handsets. IC Role / Device Role / Timing Role: Low-latency analog switch enabling sub-20 ns mute/unmute during voice codec handshaking. Use Value: 12 ns tON eliminates audible pop/click artifacts; 1.8–5.5 V operation matches baseband SoC I/O voltages. |
| Battery-Powered Data Loggers | Medical Sensor Interfaces |
Use Scenario: Multiplexing multiple analog sensor outputs (thermistor, accelerometer, gas sensor) into a shared ADC channel. IC Role / Device Role / Timing Role: Low-power analog multiplexer with independent channel enable for duty-cycled sensing. Use Value: 3.3 µW static power and ±10 nA off-leakage extend 10-year battery life in remote environmental monitors. | Use Scenario: Isolating ECG electrode inputs during lead-off detection and signal acquisition phases. IC Role / Device Role / Timing Role: Precision analog switch providing galvanic isolation and low-noise signal routing in biopotential amplifiers. Use Value: Rail-to-rail operation preserves ±1.5 V ECG signal swing; 0.3 Ω rON match ensures common-mode rejection >100 dB. |
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 |
|---|---|---|---|
| Texas Instruments TS5A23157DCKR | 2.2 Ω rON at 3.3 V; 10 ns tON; SOT23-6 (single-channel dual-switch) | Requires two devices for dual SPST function; lacks DG2037DS-T1's integrated dual-channel layout | Select when lower rON and faster switching outweigh board space constraints and BOM count increase. |
| Analog Devices ADG821BRMZ | 0.5 Ω rON at 3.3 V; 15 ns tON; MSOP-8 package; higher supply current (1 µA vs. 0.02 µA) | Superior on-resistance but 50× higher quiescent current - unsuitable for ultra-low-power wake-on-event designs | Select when signal fidelity dominates power budget, and MSOP-8 thermal performance meets system requirements. |
Compared with TS5A23157DCKR and ADG821BRMZ, the DG2037DS-T1 uniquely balances ultra-low power (0.02 µA I+), compact SOT23-8 integration, and 3.0 Ω rON - making it optimal for space- and energy-constrained dual-path analog routing where moderate on-resistance is acceptable.
Availability
DG2037DS-T1 is available at Aetrix Electronics and suitable for portable test equipment, cellular phone audio routing, and battery-powered data loggers requiring stable component supply across automotive-grade temperature ranges (–40 °C to +85 °C).
Supply support for DG2037DS-T1 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 solutions for power, analog, and sensing applications.
The DG2037DS-T1 belongs to Vishay's low-voltage analog switch product line, engineered specifically for portable and battery-operated systems demanding rail-to-rail signal handling, minimal power consumption, and robust latchup immunity.
FAQ
What is the maximum analog signal voltage range supported by the DG2037DS-T1?
The DG2037DS-T1 supports rail-to-rail analog signals from 0 V to V+, where V+ ranges from 1.8 V to 5.5 V. This means the analog voltage on COM, NO, or NC terminals may swing fully between ground and the positive supply rail without distortion or clipping - confirmed in the Absolute Maximum Ratings table and functional description of DG2037DS-T1 operation.
Does the DG2037DS-T1 require external pull-up or pull-down resistors on its digital control inputs?
No, the DG2037DS-T1 does not require external pull-up or pull-down resistors. Its digital inputs (IN1 and IN2) are TTL/CMOS-compatible with guaranteed thresholds of 0.4 V (VIL) and 1.5 V (VIH) at V+ = 3.0 V, and input leakage remains within ±1 µA - allowing direct connection to microcontroller GPIO pins without additional biasing components in the DG2037DS-T1 application circuit.
Is the DG2037DS-T1 pin-compatible with the DG2038DS-T1 or DG2039DS-T1 variants?
No, the DG2037DS-T1 is not pin-compatible with DG2038DS-T1 or DG2039DS-T1. While all three share the SOT23-8 package and pin 1–8 physical layout, their internal switch configurations differ: DG2037DS-T1 uses two normally-open (NO) switches, DG2038DS-T1 uses two normally-closed (NC) switches, and DG2039DS-T1 combines one NO and one NC switch - resulting in different truth tables and incompatible signal routing in the DG2037DS-T1 design.
What is the thermal derating behavior of the DG2037DS-T1 in SOT23-8 package?
The DG2037DS-T1 in SOT23-8 package has a power dissipation limit of 515 mW at 25 °C, with linear derating of 6.5 mW/°C above that ambient temperature - meaning usable power drops to 320 mW at 85 °C. This derating is specified in the Absolute Maximum Ratings table and applies to continuous DC operation of the DG2037DS-T1 under worst-case thermal conditions.
Can the DG2037DS-T1 be used in AC-coupled signal paths with bipolar analog voltages?
No, the DG2037DS-T1 is not rated for true bipolar operation. Its analog terminals (COM, NO) tolerate voltages only from –0.3 V to (V+ + 0.3) V referenced to GND. For AC signals centered at 0 V, a DC bias must be applied to shift the entire waveform into the 0 V to V+ range - otherwise, negative excursions will forward-bias internal clamping diodes, risking damage or distortion in the DG2037DS-T1 signal path.
DG2037DS-T1 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):
- 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):
- 30ns, 22ns
- -3db Bandwidth:
- -
- Charge Injection:
- 1pC
- Channel Capacitance (CS(off), CD(off)):
- 15pF, 17pF
- 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:
- SOT-23-8
DG2037DS-T1 FAQ
1.How can I place an order for DG2037DS-T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG2037DS-T1 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 DG2037DS-T1 reliable?
The price and inventory of DG2037DS-T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG2037DS-T1 is usually 5 days.
3.What payment methods are accepted for DG2037DS-T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG2037DS-T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG2037DS-T1?
DG2037DS-T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG2037DS-T1 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 DG2037DS-T1?
For technical support, including DG2037DS-T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG2037DS-T1 requirements.
6.How does Aetrix verify that DG2037DS-T1 is sourced from the original manufacturer or authorized distributors?
All DG2037DS-T1 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 DG2037DS-T1 meets industry standards.
7.What is the process for return or replacement of DG2037DS-T1?
All DG2037DS-T1 units undergo pre-shipment inspection (PSI). If there is an issue with DG2037DS-T1, 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 DG2037DS-T1 part is unused and in its original packaging.
Return procedure for DG2037DS-T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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