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Vishay Siliconix DG441BDY-T1
- Part No.:
- DG441BDY-T1
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG441BDY-T1.pdf
- Description:
- IC SWITCH SPST-NCX4 80OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,821
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Product details
Overview
DG441BDY-T1 from Vishay Siliconix is a monolithic quad SPST analog switch IC designed for high-speed, low-error signal routing in precision analog systems. It features 45 Ω typical on-resistance, 120 ns typical turn-on time, and ±15 V dual-supply operation, enabling accurate switching of audio, sensor, and data acquisition signals in medical instrumentation and automatic test equipment.
For engineers reviewing the DG441BDY-T1 datasheet, DG441BDY-T1 pinout, DG441BDY-T1 application, or DG441BDY-T1 equivalent, key selection criteria include on-resistance matching (±4 Ω max), charge injection (−1 pC), off-isolation (−90 dB at 100 kHz), and SOIC-16 package compatibility with industrial temperature range (−40 °C to +85 °C).
Technical Context
The DG441BDY-T1 implements four independent bidirectional analog switches using high-voltage silicon-gate CMOS technology with epitaxial latchup protection. Each channel operates symmetrically-conducting equally well in both directions when on, and blocking voltages up to ±15 V relative to supplies when off.
Its TTL/CMOS-compatible digital inputs accept logic thresholds of 0.8 V (low) and 2.4 V (high), supporting direct interface with microcontrollers and FPGAs. Charge injection is minimized at the drain terminal to reduce pedestal error in sample-and-hold circuits, and dynamic performance is specified under 1 kΩ load and 35 pF capacitance conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RDS(on)) | 45 Ω typ., 95 Ω max - ensures minimal signal attenuation and gain error in precision gain-setting networks |
| Turn-On Time (tON) | 120 ns typ., 220 ns max - enables ≥4.5 MHz switching rate in multiplexed data acquisition systems |
| Charge Injection (Q) | −1 pC typ. - limits voltage pedestal shift to <1 mV in 1 nF hold capacitors used in S/H circuits |
| Analog Signal Range | ±15 V (dual supply) or 0–12 V (single supply) - supports rail-to-rail analog signal handling without clipping |
| Off-Isolation (OIRR) | −90 dB at 100 kHz - suppresses crosstalk between active and inactive channels in multi-channel instrumentation |
| Channel Leakage (IS(off)) | ±0.01 nA max at ±14 V - preserves accuracy in high-impedance sensor front-ends and integrator applications |
| Supply Current (I+/I−) | ±5 µA max - enables ultra-low-power operation in battery-powered portable test gear |
Pinout & Package
Package: 16-pin narrow-body SOIC (JEDEC MS-012), 3.80–4.00 mm body width, 1.27 mm pitch, 1.35–1.75 mm height. RoHS-compliant, Pb-free, halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 (IN1–IN4) | Digital control input | Active-high logic enables corresponding switch; compatible with 3.3 V/5 V TTL/CMOS drivers |
| 2, 6, 10, 14 (S1–S4) | Source terminal | Low-impedance analog input/output node; bidirectional conduction path when switch is ON |
| 3, 7, 11, 15 (D1–D4) | Drain terminal | Low-charge-injection analog node; optimized for sample-and-hold capacitor connection |
| 4 (V−) | Negative supply rail | Supports dual-supply operation down to −15 V; clamps analog inputs exceeding V− − 2 V |
| 8 (V+) | Positive supply rail | Supports dual-supply operation up to +15 V; clamps analog inputs exceeding V+ + 2 V |
| 12 (GND) | Ground reference | Logic ground return; must be tied to system ground plane for noise immunity and threshold stability |
| 16 (NC) | No-connect | Internally unconnected; must remain floating or grounded per layout best practices to avoid parasitic coupling |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional analog conduction | Enables flexible signal routing in both directions without polarity constraints-ideal for shared bus architectures |
| Epitaxial latchup protection | Prevents destructive latchup under overvoltage transients, meeting MIL-STD-883 Class B reliability requirements |
| Low on-resistance match (ΔRDS(on)) | ≤4 Ω max mismatch between channels-critical for matched-gain programmable amplifiers and precision multiplexers |
| Single-supply capability (0–12 V) | Eliminates need for negative rail in portable instrumentation, reducing power supply complexity and cost |
| TTL/CMOS logic compatibility | Direct interfacing with FPGA I/O banks and MCU GPIO without level-shifting circuitry |
Applications
| Audio Switching | Data Acquisition |
|---|---|
|
Use Scenario: Routing multiple microphone or line-level audio sources to a single ADC in studio mixing consoles. IC Role / Device Role / Timing Role: Quad SPST analog switch providing channel-select isolation and low-distortion signal path. Use Value: 45 Ω RDS(on) and −95 dB crosstalk preserve stereo imaging integrity and minimize inter-channel bleed. |
Use Scenario: Multiplexing 16-channel sensor inputs (thermocouples, strain gauges) into a 12-bit SAR ADC. IC Role / Device Role / Timing Role: Precision analog switch enabling sequential sampling with minimal settling error. Use Value: −1 pC charge injection and ±0.01 nA leakage ensure sub-LSB errors in high-resolution measurements. |
| Sample-and-Hold Circuits | Medical Instrumentation |
|
Use Scenario: Acquiring ECG waveform samples at 1 kHz with 10 µs aperture time in portable patient monitors. IC Role / Device Role / Timing Role: Drain-optimized switch controlling hold capacitor charging phase with minimal pedestal shift. Use Value: −1 pC charge injection limits voltage step to <0.1 mV on 10 nF hold capacitors-meeting AAMI EC13 accuracy requirements. |
Use Scenario: Isolating diagnostic signal paths (EEG, EMG) from stimulus outputs in neurostimulation devices. IC Role / Device Role / Timing Role: High-isolation analog gate preventing stimulus artifacts from corrupting sensitive biopotential measurements. Use Value: −90 dB off-isolation at 100 kHz blocks stimulation harmonics from entering amplifier front-end stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617ESE+ | Higher on-resistance (100 Ω typ.), slower tON (250 ns), but lower charge injection (−0.5 pC) | Better suited for ultra-low-pedestal S/H where speed is secondary to accuracy | Select MAX4617ESE+ only if charge injection < −0.6 pC is mandatory and 100 Ω RDS(on) is acceptable |
| ADG1412BRUZ | Lower on-resistance (1.8 Ω typ.), higher supply voltage (±15 V), but requires external VLOGIC pin for level translation | Preferred for high-precision, low-distortion applications requiring sub-2 Ω channel resistance | Choose ADG1412BRUZ when RDS(on) < 2.5 Ω is required and additional PCB real estate for level-shifting is available |
Compared with MAX4617ESE+ and ADG1412BRUZ, the DG441BDY-T1 delivers optimal balance of speed (120 ns), on-resistance (45 Ω), and charge injection (−1 pC) in a standard SOIC-16 footprint-making it ideal for cost-sensitive, space-constrained industrial DAQ and medical front-ends where full performance trade-offs are unnecessary.
Availability
DG441BDY-T1 is available at Aetrix Electronics and suitable for data acquisition, medical instrumentation, and automatic test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DG441BDY-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 semiconductor manufacturer specializing in discrete MOSFETs, diodes, optoelectronics, and precision analog switches with emphasis on high-reliability, high-voltage, and low-leakage technologies.
The DG441BDY-T1 belongs to Vishay's high-speed analog switch product line, engineered specifically for precision signal routing in medical, test, and industrial measurement systems demanding low distortion, low leakage, and robust latchup immunity.
FAQ
What is the maximum allowable analog signal voltage range for DG441BDY-T1 when operated on ±15 V supplies?
The DG441BDY-T1 supports an analog signal range of ±15 V when powered by ±15 V supplies. Signals exceeding V+ + 2 V or falling below V− − 2 V will be clamped by internal protection diodes. For reliable operation, analog inputs must remain within −17 V to +17 V, with continuous conduction limited to ±15 V per the absolute maximum ratings table. This range ensures full rail-to-rail signal handling in precision instrumentation applications using the DG441BDY-T1.
Does DG441BDY-T1 support single-supply operation, and what is its minimum recommended supply voltage?
Yes, DG441BDY-T1 supports single-supply operation from 5 V to 12 V, with guaranteed specifications at V+ = 12 V and V− = 0 V. The minimum functional supply voltage is 5 V (V+ = 5 V, V− = 0 V), though on-resistance increases to 160 Ω typ. and switching times extend to 300 ns. For optimal performance in data acquisition systems, DG441BDY-T1 should be operated at 12 V single supply or ±15 V dual supply as specified in the datasheet.
How does the charge injection specification of DG441BDY-T1 impact sample-and-hold circuit design?
The DG441BDY-T1 specifies −1 pC typical charge injection at the drain terminal, directly limiting pedestal error in sample-and-hold circuits. With a 1 nF hold capacitor, this yields a maximum voltage step of 1 mV, which is critical for maintaining DC accuracy in 12-bit systems. Layout best practices-such as minimizing trace capacitance to the drain pin and using guard rings-must be followed to realize this spec. The DG441BDY-T1's drain-optimized architecture makes it especially suitable for such applications.
What is the thermal derating behavior of DG441BDY-T1 above 75 °C ambient temperature?
For the DG441BDY-T1 in SOIC-16 package, power dissipation must be derated by 12 mW/°C above 75 °C ambient. At 85 °C, the maximum allowable power drops from 900 mW (at ≤75 °C) to 780 mW. This derating ensures junction temperature remains within safe limits under sustained load. Designers using DG441BDY-T1 in industrial environments must verify worst-case power (I²R losses + supply current × Vsupply) and apply appropriate heatsinking or airflow if operating near thermal limits.
Can DG441BDY-T1 be used interchangeably with DG441BDY-E3, and what is the difference between them?
Yes, DG441BDY-T1 and DG441BDY-E3 are functionally identical and share the same electrical specifications, pinout, and SOIC-16 package. The suffix "-T1" indicates tape-and-reel packaging optimized for automated SMT placement (1,000 units per reel), while "-E3" denotes lead (Pb)-free, RoHS-compliant finish with standard packaging. Both versions use the same die and meet identical performance standards-DG441BDY-T1 is simply the preferred choice for high-volume production using pick-and-place assembly. The DG441BDY-T1 is fully drop-in compatible with DG441BDY-E3 in all designs.
DG441BDY-T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 80Ohm
- Channel-to-Channel Matching (ΔRon):
- 2Ohm
- Voltage - Supply, Single (V+):
- 13V ~ 36V
- Voltage - Supply, Dual (V±):
- ±7V ~ 22V
- Switch Time (Ton, Toff) (Max):
- 220ns, 120ns
- -3db Bandwidth:
- -
- Charge Injection:
- -1pC
- Channel Capacitance (CS(off), CD(off)):
- 4pF, 4pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -95dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG441BDY-T1 FAQ
1.How can I place an order for DG441BDY-T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG441BDY-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 DG441BDY-T1 reliable?
The price and inventory of DG441BDY-T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG441BDY-T1 is usually 5 days.
3.What payment methods are accepted for DG441BDY-T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG441BDY-T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG441BDY-T1?
DG441BDY-T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG441BDY-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 DG441BDY-T1?
For technical support, including DG441BDY-T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG441BDY-T1 requirements.
6.How does Aetrix verify that DG441BDY-T1 is sourced from the original manufacturer or authorized distributors?
All DG441BDY-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 DG441BDY-T1 meets industry standards.
7.What is the process for return or replacement of DG441BDY-T1?
All DG441BDY-T1 units undergo pre-shipment inspection (PSI). If there is an issue with DG441BDY-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 DG441BDY-T1 part is unused and in its original packaging.
Return procedure for DG441BDY-T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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