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Vishay Siliconix DG442BDY-T1-E3
- Part No.:
- DG442BDY-T1-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG442BDY-T1-E3.pdf
- Description:
- IC SWITCH SPST-NOX4 80OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,238
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Product details
Overview
DG442BDY-T1-E3 from Vishay Siliconix is a quad SPST analog switch IC designed for bidirectional 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 low-distortion switching of audio, sensor, and data acquisition signals in medical instrumentation and automatic test equipment.
For engineers reviewing the DG442BDY-T1-E3 datasheet, DG442BDY-T1-E3 pinout, DG442BDY-T1-E3 application, or DG442BDY-T1-E3 equivalent, key selection criteria include guaranteed charge injection (−1 pC), off-isolation (−90 dB at 100 kHz), and TTL/CMOS-compatible control logic with rail-to-rail analog signal handling up to ±15 V.
Technical Context
The DG442BDY-T1-E3 implements four independent single-pole single-throw (SPST) switches using high-voltage silicon-gate CMOS technology with epitaxial latchup protection. Each channel operates bidirectionally with matched on-resistance (ΔRDS(on) ≤ 4 Ω) and symmetrical leakage (< ±5 nA at ±14 V).
Its digital interface accepts 0.8 V low / 2.4 V high logic thresholds across −40 °C to +85 °C, supporting both dual-supply (±15 V) and single-supply (12 V) configurations. Charge injection is minimized at the drain terminal to reduce pedestal error in sample-and-hold circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance | 45 Ω typ. - ensures minimal signal attenuation and gain error in precision gain-setting networks |
| Turn-On Time | 120 ns typ. - enables sampling rates up to ~4 MHz in data acquisition front-ends |
| Charge Injection | −1 pC typ. - limits hold-mode voltage step error to < 1 mV in 1 nF sample capacitors |
| Off Isolation | −90 dB at 100 kHz - suppresses crosstalk between adjacent channels in multi-channel systems |
| Analog Signal Range | ±15 V - supports full-rail operation with industrial-grade op amps and ADC drivers |
| Supply Current | ±5 µA max. - enables low-power battery-operated instrumentation without standby current penalty |
| Logic Compatibility | TTL/CMOS - interfaces directly with microcontrollers and FPGAs without level-shifting circuitry |
Pinout & Package
Package: 16-pin narrow-body SOIC (JEDEC MS-012), 3.80–4.00 mm width, 9.80–10.00 mm length, 1.35–1.75 mm height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 (IN1–IN4) | Digital control inputs | Active-high logic: INx = 1 enables corresponding switch; matches TTL/CMOS thresholds (0.8 V / 2.4 V) |
| 5, 6, 13, 14 (S1–S4) | Source terminals | Switch input nodes - accept analog signals up to ±15 V; bidirectional conduction when enabled |
| 7, 8, 11, 12 (D1–D4) | Drain terminals | Switch output nodes - minimize charge injection (−1 pC) critical for sample-and-hold accuracy |
| 9 (V−) | Negative supply rail | Bias reference for dual-supply operation; supports −15 V minimum; clamps overvoltage via internal diodes |
| 10 (GND) | Ground reference | Logic ground return; isolated from analog signal path but shared with V− for bias stability |
| 15, 16 (V+, NC) | Positive supply / no-connect | V+ supplies analog core (up to +15 V); Pin 16 is unconnected - must be left floating per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Low on-resistance matching | ΔRDS(on) ≤ 4 Ω - maintains channel-to-channel gain consistency in programmable-gain amplifiers |
| Rail-to-rail analog switching | ±15 V signal range - eliminates clipping when interfacing with high-dynamic-range sensors or DACs |
| Low charge injection | −1 pC typ. - reduces hold-mode settling error to sub-millivolt levels in precision S/H circuits |
| Latchup immunity | Epitaxial layer isolation - prevents destructive latchup under transient overvoltage or ESD stress |
| Single-supply capability | Operates from 12 V (V+ = 12 V, V− = 0 V) - simplifies power architecture in portable medical devices |
Applications
| Audio Switching | Data Acquisition |
|---|---|
|
Use Scenario: Routing line-level stereo signals between multiple codecs and amplifier stages in professional audio mixers. IC Role / Device Role / Timing Role: Quad SPST switch providing mute, source select, and signal path isolation with < 0.01% THD+N. Use Value: 45 Ω RDS(on) minimizes insertion loss; −95 dB crosstalk prevents channel bleed in multi-track recording. |
Use Scenario: Multiplexing sensor outputs (thermocouples, strain gauges) into a 16-bit SAR ADC in industrial PLC modules. IC Role / Device Role / Timing Role: Analog front-end switch enabling sequential channel scanning with < 1 µV pedestal error per sample. Use Value: −1 pC charge injection and < ±5 nA leakage preserve DC accuracy; 120 ns tON supports >10 kSPS throughput. |
| Sample-and-Hold Circuits | Medical Instrumentation |
|
Use Scenario: Capturing ECG waveform peaks during cardiac monitoring with sub-millisecond timing resolution. IC Role / Device Role / Timing Role: Precision hold switch isolating the sampling capacitor from input impedance variations during acquisition phase. Use Value: Drain-side charge injection minimization ensures < 0.5 mV hold-step error; ±15 V range accommodates amplifier headroom. |
Use Scenario: Configurable signal routing in portable ultrasound beamformers requiring low-noise analog path selection. IC Role / Device Role / Timing Role: High-isolation analog switch enabling dynamic transducer channel mapping without cross-coupling artifacts. Use Value: −90 dB off-isolation at 100 kHz suppresses RF interference; 45 Ω RDS(on) preserves SNR in 100 dB dynamic range paths. |
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 |
|---|---|---|---|
| MAX4618ESE+ | Higher on-resistance (100 Ω typ.), slower tON (250 ns), but offers fault-protection and break-before-make timing | Preferred in motor-control I/O where overvoltage tolerance and sequencing safety are prioritized over speed | Select MAX4618ESE+ only if fault protection or guaranteed break-before-make behavior is required; not drop-in compatible due to different pinout and control logic polarity |
| ADG1412BRUZ | Lower on-resistance (1.8 Ω typ.), higher supply voltage (±15 V), but requires separate logic supply (VL) and lacks single-supply mode | Suitable for ultra-low-distortion audio routing or high-precision metrology where RDS(on) matching dominates performance | Choose ADG1412BRUZ when < 2 Ω on-resistance and < 0.1 Ω matching are mandatory; verify PCB layout supports dual logic/analog supply domains |
Compared with DG442BDY-T1-E3, MAX4618ESE+ trades speed and on-resistance for integrated protection, while ADG1412BRUZ delivers superior analog performance at the cost of design complexity and higher BOM cost - making DG442BDY-T1-E3 optimal for balanced cost, speed, and precision in general-purpose instrumentation.
Availability
DG442BDY-T1-E3 is available at Aetrix Electronics and suitable for medical instrumentation, automatic test equipment, and precision data acquisition systems requiring stable component supply, long-term lifecycle support, and traceable sourcing from qualified manufacturing sites.
Supply support for DG442BDY-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 semiconductor manufacturer specializing in discrete MOSFETs, diodes, optoelectronics, and precision analog switches - with emphasis on high-reliability, high-voltage, and low-distortion performance.
The DG442B product line was developed to upgrade legacy DG442 analog switches with improved on-resistance, faster switching, and enhanced latchup immunity for demanding industrial and medical signal-path applications.
FAQ
What is the maximum analog signal voltage range supported by the DG442BDY-T1-E3?
The DG442BDY-T1-E3 supports an analog signal range of ±15 V when operated with dual supplies (V+ = +15 V, V− = −15 V). In single-supply mode (V+ = 12 V, V− = 0 V), the range is 0 V to 12 V. Exceeding these limits risks clamping by internal diodes and may violate absolute maximum ratings.
Does the DG442BDY-T1-E3 require external pull-up or pull-down resistors on its digital inputs?
No, the DG442BDY-T1-E3 does not require external pull-up or pull-down resistors. Its TTL/CMOS-compatible inputs have defined thresholds (VINL ≤ 0.8 V, VINH ≥ 2.4 V) and draw ≤ ±1 µA input current, allowing direct connection to microcontroller GPIOs or FPGA outputs without additional biasing components.
How does the DG442BDY-T1-E3 differ from the DG441B in functional behavior?
The DG442BDY-T1-E3 has inverted logic relative to the DG441B: a logic high (≥2.4 V) on INx turns the corresponding switch OFF, whereas the DG441B turns ON. This complementary pairing allows designers to implement active-low enable schemes or redundant switching paths without external inverters.
Can the DG442BDY-T1-E3 operate reliably in single-supply configurations?
Yes, the DG442BDY-T1-E3 is fully specified for single-supply operation at V+ = 12 V and V− = 0 V. Key parameters including RDS(on) (90 Ω typ.), tON (120 ns typ.), and leakage (< ±5 nA) remain valid across −40 °C to +85 °C, making it suitable for portable and battery-powered instrumentation designs.
What is the thermal derating behavior of the DG442BDY-T1-E3 above 75 °C?
Above 75 °C, the DG442BDY-T1-E3 requires thermal derating of 12 mW/°C for the 16-pin narrow SOIC package. At 100 °C ambient, the maximum allowable power dissipation drops from 900 mW (at 75 °C) to 600 mW - necessitating attention to PCB copper area, airflow, and adjacent heat sources in high-temperature deployments.
DG442BDY-T1-E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPST - NO
- 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
DG442BDY-T1-E3 FAQ
1.How can I place an order for DG442BDY-T1-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG442BDY-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 DG442BDY-T1-E3 reliable?
The price and inventory of DG442BDY-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 DG442BDY-T1-E3 is usually 5 days.
3.What payment methods are accepted for DG442BDY-T1-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG442BDY-T1-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG442BDY-T1-E3?
DG442BDY-T1-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG442BDY-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 DG442BDY-T1-E3?
For technical support, including DG442BDY-T1-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG442BDY-T1-E3 requirements.
6.How does Aetrix verify that DG442BDY-T1-E3 is sourced from the original manufacturer or authorized distributors?
All DG442BDY-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 DG442BDY-T1-E3 meets industry standards.
7.What is the process for return or replacement of DG442BDY-T1-E3?
All DG442BDY-T1-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG442BDY-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 DG442BDY-T1-E3 part is unused and in its original packaging.
Return procedure for DG442BDY-T1-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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