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Vishay Siliconix DG2037DQ-T1-E3
- Part No.:
- DG2037DQ-T1-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
DG2037DQ-T1-E3.pdf
- Description:
- IC SWITCH SPST-NO X 2 5OHM 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,480
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Product details
Overview
DG2037DQ-T1-E3 from Vishay Siliconix is a dual SPST analog switch optimized for low-voltage, high-accuracy signal routing in portable electronics. It operates from 1.8 V to 5.5 V, delivers 3.0 Ω on-resistance at 2.7 V, achieves 12 ns switching time, and injects only 10 pC charge - enabling precision sample-and-hold and battery-powered RF/data-path switching.
For engineers reviewing the DG2037DQ-T1-E3 datasheet, DG2037DQ-T1-E3 pinout, DG2037DQ-T1-E3 application, or DG2037DQ-T1-E3 equivalent, key selection criteria include guaranteed rON flatness (0.5 Ω), sub-10 nA off-leakage across -40°C to +85°C, TTL/CMOS-compatible control logic, and MSOP-8 package compatibility with space-constrained PCB layouts.
Technical Context
The DG2037DQ-T1-E3 implements two independent, bidirectional SPST switches fabricated on Vishay's high-density low-voltage CMOS process with epitaxial latchup protection. Each switch conducts equally in both directions when ON and blocks signals up to the supply rail when OFF.
Its digital control interface accepts standard TTL/CMOS logic levels (VINH = 1.5 V min at V+ = 3 V; VINL = 0.4 V max), while analog signal handling supports full-rail operation (0 V to V+) with <35 pF channel-on capacitance and -67 dB crosstalk at 1 MHz.
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, 2.7 V, 3.3 V, and 5 V logic/system rails without level shifting |
| On-Resistance (rON) | 3.0 Ω typical at V+ = 2.7 V - minimizes signal attenuation and distortion in precision analog paths |
| Switching Time (tON/tOFF) | 12 ns typical - supports high-speed multiplexing in data acquisition and communication front-ends |
| Charge Injection (QINJ) | 10 pC - reduces voltage glitch in sample-and-hold circuits and ADC input conditioning |
| Off-Leakage Current | ±10 nA max at -40°C to +85°C - preserves accuracy in high-impedance sensor interfaces and battery monitoring |
| Channel-On Capacitance (CON) | 35 pF - maintains bandwidth integrity in RF and audio signal routing applications |
| Input Logic Compatibility | TTL/CMOS - eliminates need for external logic translators in mixed-voltage systems |
Pinout & Package
Package: MSOP-8 (3.0 mm × 3.0 mm × 1.0 mm), RoHS-compliant, tape-and-reel (T1-E3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NO1) | Normally Open Terminal 1 | Analog signal path endpoint for Switch 1; connects to COM1 when IN1 = HIGH |
| 2 (V+) | Positive Supply Rail | Primary power input (1.8–5.5 V); also defines analog signal swing range |
| 3 (COM1) | Common Terminal 1 | Center node of Switch 1; bidirectionally routes between NO1 and IN1 |
| 4 (IN1) | Digital Control Input 1 | Active-HIGH enable for Switch 1; TTL/CMOS compatible (VINH ≥ 1.5 V @ 3 V) |
| 5 (IN2) | Digital Control Input 2 | Active-HIGH enable for Switch 2; independent timing and logic control from IN1 |
| 6 (COM2) | Common Terminal 2 | Center node of Switch 2; bidirectionally routes between NO2 and IN2 |
| 7 (NO2) | Normally Open Terminal 2 | Analog signal path endpoint for Switch 2; connects to COM2 when IN2 = HIGH |
| 8 (GND) | Ground Reference | Analog and digital ground reference; must be low-impedance for leakage and noise control |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional Signal Routing | Each switch conducts identically in both directions when ON, supporting flexible signal flow in transceiver and sensor interfaces |
| Low rON Flatness (0.5 Ω) | Maintains consistent gain and linearity across full analog input range (0 V to V+), critical for instrumentation amplifiers |
| Epitaxial Latchup Protection | Prevents destructive latchup under overvoltage or ESD stress, enhancing reliability in portable device environments |
| Low Power Consumption (≤5.5 µW) | Reduces quiescent current draw in always-on subsystems such as battery fuel gauges and wake-on-event circuits |
| Small MSOP-8 Footprint | Enables high-density layout in space-constrained applications like smartphone camera modules and wearable biosensors |
Applications
| Cellular Phone Front-End | Portable Data Acquisition |
|---|---|
Use Scenario: Routing antenna diversity signals and RF transceiver I/Q paths in LTE/Wi-Fi combo modules. IC Role / Device Role / Timing Role: Dual SPST analog switch providing low-loss, fast-switching signal path selection between antennas and transceivers. Use Value: 3.0 Ω rON and -67 dB crosstalk preserve signal integrity and SNR in multi-band RF front-ends. | Use Scenario: Multiplexing sensor outputs (thermocouple, strain gauge) into a shared ADC channel in handheld test meters. IC Role / Device Role / Timing Role: Precision analog switch enabling sequential sampling with minimal charge injection-induced offset error. Use Value: 10 pC QINJ and ±10 nA off-leakage ensure sub-LSB accuracy in 16-bit measurement systems. |
| Battery Fuel Gauging | Audio Signal Routing |
Use Scenario: Isolating battery cell voltage sense lines during charging/discharging cycles in smart battery packs. IC Role / Device Role / Timing Role: High-impedance isolation switch protecting fuel gauge IC inputs from transient currents and voltage spikes. Use Value: Full-rail analog range (0 V to V+) and <10 nA leakage maintain measurement stability across 2.5–4.3 V battery voltage range. | Use Scenario: Selecting between microphone inputs or headphone outputs in compact Bluetooth headsets. IC Role / Device Role / Timing Role: Low-distortion analog switch managing audio path configuration without pop/click artifacts. Use Value: 12 ns switching and 35 pF CON support wideband audio (20 Hz–20 kHz) with flat frequency response and low THD. |
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 |
|---|---|---|---|
| MAX4617EUA+ | Higher rON (4.5 Ω typ at 3 V), wider supply range (2.7–12 V), larger SO-8 package | Better suited for industrial systems requiring higher voltage tolerance and thermal margin | Select MAX4617EUA+ if operating above 5.5 V or needing >100 mW power dissipation capability |
| ADG721BRMZ | Lower rON (2.5 Ω typ at 3 V), same MSOP-8 footprint, but higher QINJ (25 pC) | Preferred where ultra-low on-resistance is prioritized over charge injection sensitivity | Select ADG721BRMZ when minimizing signal path resistance outweighs sample-and-hold settling requirements |
Compared with MAX4617EUA+ and ADG721BRMZ, the DG2037DQ-T1-E3 uniquely balances sub-3.5 Ω rON, single-digit pC charge injection, and MSOP-8 size - making it optimal for space- and accuracy-critical portable designs where supply stays ≤5.5 V.
Availability
DG2037DQ-T1-E3 is available at Aetrix Electronics and suitable for cellular phone front-end switching, portable data acquisition, battery fuel gauging, audio signal routing, and sample-and-hold circuitry requiring stable component supply across automotive, industrial, and consumer production programs.
Supply support for DG2037DQ-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 solutions for power, sensing, and signal-path applications.
The DG2037DQ-T1-E3 belongs to Vishay's low-voltage analog switch product line, engineered specifically for portable and battery-operated systems demanding minimal power, precise signal fidelity, and compact packaging.
FAQ
What is the maximum analog signal voltage range supported by the DG2037DQ-T1-E3?
The DG2037DQ-T1-E3 supports full-rail analog signal operation from 0 V to V+, where V+ ranges from 1.8 V to 5.5 V. This means that with a 3.3 V supply, the device passes signals from 0 V to 3.3 V without clipping or distortion - a key requirement for interfacing with modern low-voltage ADCs and sensors. Signals exceeding V+ are clamped by internal diodes, so external protection is recommended beyond absolute maximum ratings.
Does the DG2037DQ-T1-E3 support bidirectional signal flow?
Yes, the DG2037DQ-T1-E3 supports fully bidirectional analog signal routing on both switches. When enabled, each SPST switch conducts identically in either direction - meaning COM1 can serve as input or output relative to NO1 or IN1, depending on system architecture. This flexibility simplifies design in transceiver I/O, sensor excitation, and loopback test configurations without requiring additional buffering.
What is the guaranteed on-resistance matching between the two switches in the DG2037DQ-T1-E3?
The DG2037DQ-T1-E3 guarantees rON match of 0.3 Ω (typical) at V+ = 2.7 V, ensuring highly consistent gain and phase response between channels. This tight matching is critical in differential signal paths, balanced filter networks, and dual-channel instrumentation where mismatch-induced errors must remain below 0.1%. The specification holds across the full -40°C to +85°C operating temperature range.
Can the DG2037DQ-T1-E3 operate reliably at 1.8 V supply voltage?
Yes, the DG2037DQ-T1-E3 is fully specified and characterized down to 1.8 V supply voltage. At 1.8 V, it maintains functional logic thresholds (VINH ≤ 0.9 V, VINL ≥ 0.4 V), delivers usable rON (<10 Ω), and retains sub-20 ns switching performance. This makes the DG2037DQ-T1-E3 suitable for ultra-low-power microcontroller peripherals and energy-harvesting systems where supply rails scale dynamically.
Is the DG2037DQ-T1-E3 pin-compatible with other members of the DG2037/2038/2039 family?
Yes, the DG2037DQ-T1-E3 shares identical pinout and package (MSOP-8) with DG2038DQ and DG2039DQ. However, logic polarity differs: DG2037DQ uses active-HIGH control (IN = HIGH → switch ON), while DG2038DQ is active-LOW and DG2039DQ offers complementary control. Board-level substitution requires firmware or logic-level adjustment - the DG2037DQ-T1-E3 is not a drop-in replacement without verifying control signal polarity.
DG2037DQ-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):
- 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:
- 8-MSOP
DG2037DQ-T1-E3 FAQ
1.How can I place an order for DG2037DQ-T1-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG2037DQ-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 DG2037DQ-T1-E3 reliable?
The price and inventory of DG2037DQ-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 DG2037DQ-T1-E3 is usually 5 days.
3.What payment methods are accepted for DG2037DQ-T1-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG2037DQ-T1-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG2037DQ-T1-E3?
DG2037DQ-T1-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG2037DQ-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 DG2037DQ-T1-E3?
For technical support, including DG2037DQ-T1-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG2037DQ-T1-E3 requirements.
6.How does Aetrix verify that DG2037DQ-T1-E3 is sourced from the original manufacturer or authorized distributors?
All DG2037DQ-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 DG2037DQ-T1-E3 meets industry standards.
7.What is the process for return or replacement of DG2037DQ-T1-E3?
All DG2037DQ-T1-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG2037DQ-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 DG2037DQ-T1-E3 part is unused and in its original packaging.
Return procedure for DG2037DQ-T1-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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