My Inquiry
My Account
Vishay Siliconix DG444DJ
- Part No.:
- DG444DJ
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
DG444DJ.pdf
- Description:
- IC SWITCH SPST-NCX4 85OHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,778
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DG444DJ from Vishay Siliconix is a quad SPST analog switch with normally closed (NC) configuration, designed for precision signal routing in bipolar and unipolar analog systems. It delivers 50 Ω typical on-resistance, 120 ns typical turn-on time, ±15 V dual-supply operation, and 80 pA maximum off-leakage - enabling high-fidelity audio switching and sample-and-hold circuits in battery-powered test equipment.
For engineers reviewing the DG444DJ datasheet, DG444DJ pinout, DG444DJ application, or DG444DJ equivalent, this page provides verified pin mapping, real-world timing behavior under load, leakage performance across temperature, supply voltage flexibility (±5 V to ±20 V or +5 V to +36 V), and direct upgrade path from legacy DG211 sockets.
Technical Context
The DG444DJ implements four independent CMOS transmission gates built on a high-voltage silicon-gate process, with epitaxial latchup protection. Each channel conducts bidirectionally when enabled and blocks signals beyond supply rails when disabled, supporting full analog swing from –15 V to +15 V under dual supplies.
Its logic interface accepts TTL/CMOS-compatible inputs (0.8 V low, 2.4 V high) referenced to VL, while analog paths remain isolated from digital supply domains. Charge injection is minimized to –1 pC (typ.) at 0 V source, critical for low-pedestal error in precision sampling applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance | 50 Ω typ. - ensures minimal signal attenuation and gain error in precision resistor networks |
| Turn-on time | 120 ns typ. - enables ≥3 MHz switching in data acquisition front-ends |
| Off-leakage current | ±0.01 nA typ. - preserves charge integrity over >1 s hold times in sample-and-hold circuits |
| Analog signal range | ±15 V - supports rail-to-rail signal handling without clipping in ±15 V op-amp systems |
| Supply range | ±5 V to ±20 V dual or +5 V to +36 V single - simplifies integration into mixed-voltage industrial and telecom platforms |
| Charge injection | –1 pC typ. - limits pedestal error to <1 mV in 1 nF hold capacitors |
| Logic compatibility | TTL/CMOS - allows direct interfacing with microcontrollers and FPGAs without level-shifting |
Pinout & Package
Package: 16-pin plastic DIP (JEDEC MS-012), 0.300" wide body, through-hole mountable with 2.54 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 | INx (Control Input) | Active-low logic input for corresponding NC switch; 0.8 V max for logic low, 2.4 V min for logic high |
| 2, 6, 10, 14 | Sx (Source) | Analog input terminal; bidirectional conduction path when switch is closed |
| 3, 7, 11, 15 | Dx (Drain) | Analog output terminal; electrically identical to Sx in on-state, isolated in off-state |
| 4 | V− | Negative analog supply rail; must be ≤ V+ − 44 V and ≥ GND − 25 V |
| 8 | GND | Digital ground reference for logic inputs and VL |
| 12 | VL | Logic supply voltage input; decouples digital control domain from analog supplies |
| 16 | V+ | Positive analog supply rail; defines upper analog signal limit and power delivery path |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional analog conduction | Enables flexible signal routing in both directions without polarity constraints |
| Low 50 Ω on-resistance | Maintains signal fidelity in gain-setting resistor networks and audio paths |
| –1 pC charge injection | Reduces pedestal error to sub-millivolt levels in precision sample-and-hold topologies |
| 22 nW typical power consumption | Extends battery life in portable instrumentation and handheld ATE |
| High off-isolation (60 dB) | Prevents crosstalk between channels at 1 MHz, critical in multi-channel DAQ systems |
Applications
| Audio Switching | Data Acquisition |
|---|---|
Use Scenario: Routing line-level stereo signals between multiple sources and outputs in professional audio mixers. IC Role / Device Role / Timing Role: Quad SPST NC switch providing silent, glitch-free channel selection with no DC offset. Use Value: 50 Ω RDS(on) and <120 ns tON ensure flat frequency response to 20 kHz and zero audible click/pop during switching. | Use Scenario: Multiplexing sensor inputs into a shared ADC in environmental monitoring systems. IC Role / Device Role / Timing Role: Analog front-end switch enabling sequential sampling of thermocouples, RTDs, and strain gauges. Use Value: ±0.01 nA off-leakage and –1 pC charge injection preserve measurement accuracy over extended hold periods. |
| Sample-and-Hold Circuits | Telecommunication Systems |
Use Scenario: Capturing and holding analog voltage samples prior to digitization in high-speed modems. IC Role / Device Role / Timing Role: Precision hold switch with minimized charge injection and rail-to-rail analog swing. Use Value: –1 pC charge injection limits pedestal error to <0.5 mV on 1 nF hold capacitors, meeting 12-bit ENOB requirements. | Use Scenario: Signal path selection in analog line-card interfaces for PSTN and VoIP gateways. IC Role / Device Role / Timing Role: High-voltage analog switch managing tip/ring signaling, ring detection, and codec routing. Use Value: ±20 V dual-supply rating and 60 dB off-isolation prevent cross-talk between voice and supervision channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617CPD+ | Quad SPST NO, 60 Ω RDS(on), 150 ns tON, ±15 V rating, but requires external logic inversion for NC function | Not a drop-in replacement due to NO default state; requires PCB-level logic inversion for DG444DJ-equivalent behavior | Select only if NO default is acceptable and board layout allows inverter addition |
| ADG444BRZ | Quad SPST NC, 45 Ω RDS(on), 110 ns tON, ±15 V rating, but uses SOIC-16 package and lacks VL pin (logic tied to V+) | Compatible functionally but incompatible pinout and logic supply architecture; requires redesign of control interface | Choose for improved RDS(on) and speed only if package and VL decoupling constraints can be accommodated |
Compared with MAX4617CPD+ and ADG444BRZ, the DG444DJ offers native NC operation with dedicated VL pin for robust logic/analog domain separation - eliminating external components and layout changes required by alternatives, while maintaining proven reliability in long-lifecycle industrial designs.
Availability
DG444DJ is available at Aetrix Electronics and suitable for audio switching, data acquisition, and sample-and-hold circuits requiring stable component supply across extended production lifecycles.
Supply support for DG444DJ 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 semiconductors and analog ICs, with core expertise in high-voltage switching and precision analog signal conditioning.
The DG444DJ belongs to Vishay's high-reliability analog switch product line, engineered for demanding applications including automatic test equipment, telecom infrastructure, and industrial data acquisition where low leakage, low distortion, and long-term parametric stability are mandatory.
FAQ
What is the default state of each switch in DG444DJ?
The DG444DJ features normally closed (NC) switches: each channel conducts analog signals between its S and D terminals when the corresponding INx pin is logic low (≤0.8 V), and opens (blocks) when INx is logic high (≥2.4 V). This behavior is confirmed in the truth table on page 1 of Vishay document 70054 and distinguishes DG444DJ from the NO DG445DJ variant.
Can DG444DJ operate from a single +12 V supply?
Yes, DG444DJ supports unipolar operation from +5 V to +36 V. At +12 V, it delivers 100 Ω typical on-resistance and 300 ns typical turn-on time per the "Specifications for Unipolar Supplies" table (page 3 of document 70054), making it suitable for portable instrumentation and single-rail industrial sensors.
What is the purpose of the VL pin on DG444DJ?
The VL pin on DG444DJ provides an independent logic supply reference, decoupling digital control thresholds from analog supply rails. It accepts 4.5 V to 5.5 V and sets the 0.8 V / 2.4 V logic thresholds regardless of V+ or V− values - ensuring reliable switching even when analog supplies exceed 5 V, as specified in the Functional Block Diagram and Truth Table sections of document 70054.
How does DG444DJ minimize errors in sample-and-hold circuits?
DG444DJ minimizes sample-and-hold errors via –1 pC typical charge injection (page 2, Q parameter), <80 pA off-leakage (page 2, IS(off)), and bidirectional conduction symmetry. These parameters directly limit pedestal error and droop rate, enabling >1 s hold times with <1 mV drift - validated in Figure 3 (Charge Injection) and Figure 9 (Precision Sample-and-Hold) of document 70054.
Is DG444DJ pin-compatible with DG211 series devices?
Yes, DG444DJ is a direct socket upgrade for DG211 devices, sharing identical 16-pin DIP pinout, NC functionality, and logic interface. Vishay explicitly states "DG211, DG212 upgrades" in the Features section (page 1) and confirms mechanical compatibility via identical MS-012 package dimensions in document 71194 - enabling drop-in replacement without PCB modification.
DG444DJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 85Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 5V ~ 36V
- Voltage - Supply, Dual (V±):
- ±5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 250ns, 140ns
- -3db Bandwidth:
- -
- Charge Injection:
- -1pC
- Channel Capacitance (CS(off), CD(off)):
- 4pF, 4pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -100dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-PDIP
DG444DJ FAQ
1.How can I place an order for DG444DJ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG444DJ 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 DG444DJ reliable?
The price and inventory of DG444DJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG444DJ is usually 5 days.
3.What payment methods are accepted for DG444DJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG444DJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG444DJ?
DG444DJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG444DJ 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 DG444DJ?
For technical support, including DG444DJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG444DJ requirements.
6.How does Aetrix verify that DG444DJ is sourced from the original manufacturer or authorized distributors?
All DG444DJ 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 DG444DJ meets industry standards.
7.What is the process for return or replacement of DG444DJ?
All DG444DJ units undergo pre-shipment inspection (PSI). If there is an issue with DG444DJ, 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 DG444DJ part is unused and in its original packaging.
Return procedure for DG444DJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DG444DJ Tags
-
SN74LVC1G3157DBVR
Texas Instruments
-
SN74LVC1G66DBVR
Texas Instruments
-
SN74LVC1G66DCKR
Texas Instruments
-
SN74LVC1G3157DSFR
Texas Instruments
-
1P1G3157QDCKRQ1
Texas Instruments
-
SN74LVC2G66DCUR
Texas Instruments
-
SN74LV4052APWR
Texas Instruments
-
74HC4051D,653
Nexperia USA Inc.
-
SN74LV4051APWR
Texas Instruments
-
CD74HC4052PWR
Texas Instruments
-
CD74HC4051PWR
Texas Instruments
-
TS5A3166DBVR
Texas Instruments
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
