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Vishay Siliconix DG441BDJ
- Part No.:
- DG441BDJ
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
DG441BDJ.pdf
- Description:
- IC SWITCH SPST-NCX4 80OHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,532
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Product details
Overview
DG441BDJ from Vishay Siliconix is a quad SPST CMOS analog switch optimized for bidirectional signal routing in precision analog systems, featuring 45 Ω typical on-resistance, 120 ns typical turn-on time, and ±15 V dual-supply operation - deployed in data acquisition front-ends and medical instrumentation sample-and-hold stages.
For engineers reviewing the DG441BDJ datasheet, DG441BDJ pinout, DG441BDJ application, or DG441BDJ equivalent, key selection criteria include guaranteed low charge injection (–1 pC), TTL/CMOS-compatible logic thresholds, and 16-pin plastic DIP package compatibility with legacy test equipment layouts.
Technical Context
The DG441BDJ implements four independent single-pole single-throw (SPST) switches using high-voltage silicon-gate CMOS technology with epitaxial latchup protection. Each channel conducts equally in both directions when ON and blocks analog signals up to ±15 V when OFF.
It operates from dual supplies (±15 V) or single supply (12 V), supports logic inputs of 0.8 V (low) and 2.4 V (high), and maintains sub-5 nA off-leakage across –40 °C to +85 °C. Charge injection is minimized at the drain terminal to reduce pedestal error in sampling circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance | 45 Ω typ. - enables <1 % gain error in 1 kΩ impedance signal paths |
| Turn-On Time | 120 ns typ. - supports >3 MHz switching in multiplexed ADC sampling |
| Charge Injection | –1 pC typ. - limits hold-mode voltage step to <1 mV in 1 nF sample capacitors |
| Analog Signal Range | ±15 V - accommodates full-rail bipolar sensor outputs and op-amp swing |
| Off Isolation | –90 dB @ 100 kHz - suppresses crosstalk between adjacent channels in multi-channel DAQ |
| Supply Current | ±5 µA max. - enables low-quiescent-power battery-operated portable instruments |
| Logic Compatibility | TTL/CMOS - interfaces directly with FPGA I/O banks and microcontroller GPIO without level shifters |
Pinout & Package
Package: 16-pin plastic DIP (JEDEC MS-012), 0.300" wide body, through-hole mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | IN1–IN4 | Digital control inputs - active-high logic turns corresponding switch ON |
| 5, 6, 13, 14 | S1–S4 | Switch source terminals - connect to common analog bus or signal source |
| 7, 8, 11, 12 | D1–D4 | Switch drain terminals - route to individual ADC inputs or signal destinations |
| 9 | V− | Negative supply rail - required for bipolar analog range support |
| 10 | GND | Analog/digital ground reference - must be low-impedance star point |
| 15, 16 | V+ | Positive supply rail - powers internal logic and switch driver circuitry |
| NC | No Connect | Pin 10 is GND; Pin 15/16 are tied to V+ - no internal connection at pin 10 (GND) location in this layout |
Key Features
| Feature | Design Value |
|---|---|
| Low on-resistance matching | ΔRDS(on) ≤ 4 Ω max. - ensures <0.3 % channel-to-channel gain mismatch in programmable gain amplifiers |
| Drain-side charge injection minimization | –1 pC typ. - reduces hold-step error to <0.5 mV in 2 nF sample capacitors |
| High off-isolation | –90 dB @ 100 kHz - prevents signal bleed between audio channels or sensor inputs |
| Bidirectional conduction | Identical RDS(on) in either direction - eliminates polarity constraints in AC-coupled signal paths |
| Latchup immunity | Epitaxial layer isolation - guarantees robust operation under transient overvoltage conditions |
Applications
| Audio Switching | Data Acquisition |
|---|---|
Use Scenario: Routing multiple microphone inputs to a shared ADC in studio mixing consoles. IC Role / Device Role / Timing Role: Quad SPST analog switch enabling channel-selectable signal path with minimal THD degradation. Use Value: 45 Ω RDS(on) and –95 dB crosstalk preserve stereo imaging integrity and prevent inter-channel leakage. |
Use Scenario: Multiplexing 16 thermocouple outputs into a single high-resolution sigma-delta ADC. IC Role / Device Role / Timing Role: Precision analog switch providing low-charge-injection sampling for cold-junction compensation. Use Value: –1 pC charge injection limits measurement offset drift to <2 µV over temperature in 100 ms sample intervals. |
| Sample-and-Hold Circuits | Medical Instrumentation |
Use Scenario: Capturing ECG waveform segments for digital analysis in portable monitors. IC Role / Device Role / Timing Role: Drain-optimized switch isolating hold capacitor during acquisition phase. Use Value: Minimized drain charge injection ensures <0.1 % baseline stability in 100 nF hold capacitors. |
Use Scenario: Configurable gain-setting network in ultrasound receive beamformers. IC Role / Device Role / Timing Role: Low-RDS(on), low-leakage switch selecting precision resistor ratios for dynamic gain control. Use Value: 5 nA max. off-leakage prevents >1 LSB error accumulation in 16-bit 100 kSPS acquisition windows. |
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 (60 Ω typ.), lower charge injection (–0.5 pC), SOIC-16 only | Optimized for ultra-low-distortion audio; lacks DIP packaging | Select when lowest possible charge injection is critical and PCB redesign is acceptable |
| ADG441BRZ | Wider supply range (±20 V), higher leakage (±20 nA), same 16-pin SOIC/DIP footprint | Better suited for industrial HV sensor conditioning where leakage tolerance >10 nA | Choose for extended voltage headroom where ±15 V margin is insufficient |
Compared with DG441BDJ, MAX4617ESE+ offers superior charge injection performance but requires SOIC layout adaptation, while ADG441BRZ extends analog voltage range at the cost of higher off-leakage - making DG441BDJ optimal for cost-sensitive, DIP-based medical DAQ designs requiring balanced speed, precision, and legacy compatibility.
Availability
DG441BDJ is available at Aetrix Electronics and suitable for data acquisition systems, medical instrumentation, automatic test equipment, and audio signal routing requiring stable component supply across long-lifecycle industrial programs.
Supply support for DG441BDJ 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-performance components for industrial and medical markets.
The DG441B family was designed specifically for high-fidelity analog signal routing in precision measurement systems, prioritizing low distortion, low leakage, and robust latchup immunity in mixed-signal environments.
FAQ
What is the maximum analog signal voltage range supported by DG441BDJ?
DG441BDJ supports a full analog signal range of ±15 V when operated from dual supplies (V+ = +15 V, V− = −15 V). This allows direct interfacing with bipolar op-amps and sensors without external level-shifting. The device clamps input signals exceeding V+ or V− via internal diodes, provided forward current remains within 30 mA absolute maximum rating.
Does DG441BDJ require separate logic and analog grounds?
No - DG441BDJ uses a single GND pin (pin 10) serving as the common reference for both digital control inputs and analog signal paths. Its design integrates logic and analog ground domains internally, eliminating need for split-ground layout. However, best practice recommends routing this GND to a low-impedance star point shared with V+ and V− decoupling capacitors.
Can DG441BDJ operate from a single 12 V supply?
Yes - DG441BDJ functions with single-supply operation (V+ = 12 V, V− = 0 V), delivering an analog signal range of 0 V to 12 V. In this mode, on-resistance increases to 90 Ω typ., and turn-on time extends to 120 ns typ., maintaining compatibility with most 12 V data acquisition architectures without redesign.
How does DG441BDJ minimize pedestal error in sample-and-hold circuits?
DG441BDJ minimizes pedestal error by reducing charge injection to –1 pC typ. at the drain terminal. When used in the hold path (drain connected to hold capacitor), this low charge transfer limits voltage step upon switch opening - ensuring <1 mV error in standard 1 nF sample capacitors and preserving DC accuracy in precision measurement loops.
Is DG441BDJ pin-compatible with the original DG441?
Yes - DG441BDJ is a direct upgrade to the legacy DG441, sharing identical pinout, electrical specifications, and package dimensions (16-pin plastic DIP). It improves on the original with tighter on-resistance matching, reduced charge injection, and enhanced latchup immunity - enabling drop-in replacement without PCB or firmware changes.
DG441BDJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Bulk
- 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:
- Through Hole
- Supplier Device Package:
- 16-PDIP
DG441BDJ FAQ
1.How can I place an order for DG441BDJ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG441BDJ 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 DG441BDJ reliable?
The price and inventory of DG441BDJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG441BDJ is usually 5 days.
3.What payment methods are accepted for DG441BDJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG441BDJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG441BDJ?
DG441BDJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG441BDJ 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 DG441BDJ?
For technical support, including DG441BDJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG441BDJ requirements.
6.How does Aetrix verify that DG441BDJ is sourced from the original manufacturer or authorized distributors?
All DG441BDJ 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 DG441BDJ meets industry standards.
7.What is the process for return or replacement of DG441BDJ?
All DG441BDJ units undergo pre-shipment inspection (PSI). If there is an issue with DG441BDJ, 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 DG441BDJ part is unused and in its original packaging.
Return procedure for DG441BDJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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