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Vishay Siliconix DG442DJ
- Part No.:
- DG442DJ
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
DG442DJ.pdf
- Description:
- IC SWITCH SPST-NOX4 85OHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,606
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Product details
Overview
DG442DJ from Maxim Integrated is a quad, normally open (NO), single-pole/single-throw (SPST) analog switch IC designed for precision signal routing in bipolar or single-supply systems. It features 85Ω max on-resistance, <5nA off-leakage at +85°C, 10pC max charge injection, 250ns max tON, and operates from ±4.5V to ±20V or +10V to +30V supplies - used in test equipment, audio-signal routing, and battery-operated systems.
For engineers reviewing the DG442DJ datasheet, DG442DJ pinout, DG442DJ application, or DG442DJ equivalent, key selection criteria include guaranteed rDS(ON) matching (4Ω max), rail-to-rail analog signal handling, TTL/CMOS logic compatibility, low power consumption (1.65mW), and -40°C to +85°C industrial temperature rating.
Technical Context
The DG442DJ implements four independent SPST switches with active-high digital control inputs and complementary logic sense versus DG441DJ. Each switch conducts bidirectionally with matched on-resistance across channels and flat on-resistance over the full analog range (9Ω max variation).
It uses a 44V silicon-gate process enabling operation up to ±20V supplies while maintaining ESD tolerance of ≥2000V per Method 3015.7. Switching performance is characterized under both dual-supply (±15V) and single-supply (+12V) conditions, with leakage and charge injection fully tested at maximum operating temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | Quad SPST, normally open (NO), TTL/CMOS-compatible control |
| On-Resistance (rDS(ON)) | 85Ω max - ensures minimal signal attenuation in precision analog paths |
| On-Resistance Match | 4Ω max between channels - critical for multi-channel signal matching in instrumentation |
| Charge Injection | 10pC max - reduces voltage glitch in sample-and-hold and multiplexer applications |
| Off-Leakage Current | <5nA at +85°C - preserves accuracy in high-impedance sensor interfaces |
| Supply Range | ±4.5V to ±20V or +10V to +30V - supports flexible system-level power architecture |
| Switching Time (tON/tOFF) | 250ns / 170ns max - enables fast channel switching in automated test equipment |
Pinout & Package
DG442DJ is supplied in a 16-pin plastic DIP package with through-hole mounting and standard 0.3-inch width. Pin 1 is S1 (source terminal of Channel 1), and the exposed pad is not present - this variant uses traditional DIP construction without thermal EP.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | S1 | Source terminal of Channel 1 - connects to signal path when switch is enabled |
| 2 | V− | Negative supply rail - must be connected for bipolar operation or grounded for single supply |
| 3 | GND | Logic ground reference - separate from analog signal ground in mixed-signal layouts |
| 4 | S4 | Source terminal of Channel 4 - independently controllable, bidirectional conduction |
| 5 | D4 | Drain terminal of Channel 4 - completes signal path with S4 when IN4 = high |
| 6 | IN4 | Digital control input for Channel 4 - active-high logic enables switch closure |
| 7 | IN3 | Digital control input for Channel 3 - TTL/CMOS compatible, VIH = 2.4V min |
| 8 | D3 | Drain terminal of Channel 3 - routed to external circuitry when switch is on |
| 9 | S3 | Source terminal of Channel 3 - forms low-distortion analog path with D3 |
| 10 | N.C. | No internal connection - left unconnected on PCB |
| 11 | V+ | Positive supply rail - powers analog core and logic interface; substrate tie |
| 12 | S2 | Source terminal of Channel 2 - electrically isolated from other channels |
| 13 | D2 | Drain terminal of Channel 2 - supports rail-to-rail signal swing up to V+ and V− |
| 14 | IN2 | Digital control input for Channel 2 - shares same logic threshold as IN1–IN4 |
| 15 | IN1 | Digital control input for Channel 1 - controls S1–D1 path; no internal pull-up/down |
| 16 | D1 | Drain terminal of Channel 1 - primary signal output node for first switch |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed rDS(ON) match | ≤4Ω between all four channels - eliminates gain mismatch in multi-path data acquisition |
| rFLAT(ON) over signal range | ≤9Ω variation from V− to V+ - maintains consistent gain across full analog input span |
| Low charge injection | ≤10pC - minimizes sampling error in precision ADC front-ends and hold circuits |
| Enhanced off-leakage | <5nA at +85°C - sustains accuracy in high-Z medical sensor and battery-monitoring circuits |
| Rail-to-rail signal handling | Supports signals from V− to V+ - enables direct interfacing with op-amps and DACs without level-shifting |
Applications
| Test Equipment Signal Routing | Audio-Signal Multiplexing |
|---|---|
Use Scenario: Automated test systems route multiple sensor outputs to a shared digitizer using timed switching sequences. IC Role / Device Role / Timing Role: DG442DJ acts as a precision analog multiplexer controller, enabling sequential sampling of 4 independent DC-coupled channels. Use Value: Low 4Ω rDS(ON) match and 10pC charge injection ensure measurement repeatability across channels without calibration drift. |
Use Scenario: Portable audio mixer selects between four line-level input sources before amplification and output. IC Role / Device Role / Timing Role: DG442DJ serves as a silent, low-distortion analog switch bank, activated by microcontroller GPIOs. Use Value: Rail-to-rail operation preserves full dynamic range; 85Ω rDS(ON) avoids audible insertion loss in line-driven paths. |
| Battery-Operated Data Loggers | Military Radio Front-End Switching |
Use Scenario: Low-power environmental monitor samples temperature, humidity, and pressure sensors intermittently to extend battery life. IC Role / Device Role / Timing Role: DG442DJ isolates inactive sensor bridges, reducing system standby current via controlled channel enable/disable. Use Value: <5nA off-leakage at +85°C prevents sensor bias errors and preserves battery runtime over extended deployments. |
Use Scenario: Tactical radio switches between antenna ports and RF conditioning paths under software control in harsh environments. IC Role / Device Role / Timing Role: DG442DJ provides robust analog signal gating in the IF stage, surviving 2000V ESD events per MIL-STD-883 Method 3015.7. Use Value: 44V process and ±20V supply support enable reliable operation in wide-voltage military power domains. |
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 |
|---|---|---|---|
| ADG442BRZ | 16-pin SOIC, 40Ω max rDS(ON), 2.5V–12V single-supply only, no bipolar support | Limited to low-voltage systems; unsuitable for ±15V instrumentation or industrial rails | Select when operating exclusively below +12V and board space requires surface-mount packaging |
| TS5A4624DCKR | 6-pin SC70, single-channel, 0.7Ω rDS(ON), 1.65V–5.5V supply, 300mA continuous current | Requires four discrete units; optimized for portable USB/audio, not precision analog routing | Choose only for ultra-low RON in compact consumer designs - not a functional or pinout replacement for DG442DJ |
Compared with ADG442BRZ and TS5A4624DCKR, DG442DJ uniquely supports industrial bipolar supplies (±4.5V to ±20V), guarantees channel-to-channel rDS(ON) matching, and delivers verified performance at +85°C - making it irreplaceable in test equipment and ruggedized embedded signal routing where supply flexibility and matching accuracy are mandatory.
Availability
DG442DJ is available at Aetrix Electronics and suitable for test equipment, audio-signal routing, and battery-operated systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DG442DJ 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
Maxim Integrated (now part of Analog Devices) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and computing markets.
The DG442DJ belongs to Maxim's legacy precision analog switch family, engineered for signal integrity in instrumentation-grade applications where low leakage, matched resistance, and robust ESD tolerance are non-negotiable design requirements.
FAQ
What is the operating temperature range for DG442DJ?
The DG442DJ is rated for operation from -40°C to +85°C, qualifying it for industrial and extended-temperature embedded applications. This range is confirmed in the Ordering Information table and applies specifically to the plastic DIP variant (DG442DJ), distinct from commercial-grade (C-suffix) or military-grade (AK/MY-suffix) versions.
Does DG442DJ support single-supply operation?
Yes, DG442DJ supports single-supply operation from +10V to +30V. In this configuration, V− must be connected to ground (0V), and the analog signal range extends rail-to-rail from 0V to V+. The device maintains all key specifications including 10pC max charge injection and <5nA off-leakage at +85°C under single-supply conditions.
What is the maximum analog signal voltage range supported by DG442DJ?
The DG442DJ supports analog signals from V− to V+, enabling true rail-to-rail operation. With ±15V supplies, the signal range is -15V to +15V; with +12V single supply (V− = 0V), the range is 0V to +12V. Absolute maximum ratings limit V+ to 44V above V−, but functional analog range is bounded by supply rails.
Is DG442DJ pin-compatible with older DG442 variants?
Yes, DG442DJ maintains identical pinout and electrical behavior with prior DG442 versions in the same 16-pin DIP package, including DG442CJ. The "D" grade denotes the -40°C to +85°C temperature range, while functionality, timing, and DC parameters are backward-compatible per Maxim's plug-in upgrade specification.
What logic levels are compatible with DG442DJ's digital inputs?
DG442DJ's IN1–IN4 inputs are TTL/CMOS-compatible, with VIH = 2.4V minimum and VIL = 0.8V maximum at V+ = 15V. Input current remains ≤±5nA across temperature, allowing direct interfacing with microcontrollers, FPGAs, and logic families without level-shifting or buffering - a key feature confirmed in the Electrical Characteristics tables.
DG442DJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 85Ohm
- Channel-to-Channel Matching (ΔRon):
- 4Ohm (Max)
- Voltage - Supply, Single (V+):
- 12V
- Voltage - Supply, Dual (V±):
- ±15V
- Switch Time (Ton, Toff) (Max):
- 250ns, 210ns
- -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
DG442DJ FAQ
1.How can I place an order for DG442DJ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG442DJ 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 DG442DJ reliable?
The price and inventory of DG442DJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG442DJ is usually 5 days.
3.What payment methods are accepted for DG442DJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG442DJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG442DJ?
DG442DJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG442DJ 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 DG442DJ?
For technical support, including DG442DJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG442DJ requirements.
6.How does Aetrix verify that DG442DJ is sourced from the original manufacturer or authorized distributors?
All DG442DJ 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 DG442DJ meets industry standards.
7.What is the process for return or replacement of DG442DJ?
All DG442DJ units undergo pre-shipment inspection (PSI). If there is an issue with DG442DJ, 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 DG442DJ part is unused and in its original packaging.
Return procedure for DG442DJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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