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Renesas DG442DJ
- Part No.:
- DG442DJ
- Manufacturer:
- Renesas
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
DG442DJ.pdf
- Description:
- IC SWITCH SPST-NOX4 85OHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,637
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Product details
Overview
DG442DJ from Intersil is a monolithic quad SPST CMOS analog switch with TTL/CMOS-compatible digital inputs, 85Ω max ON resistance, 250ns max tON, and ±20V analog signal range. It operates from single (5–34V) or split (±5V to ±22V) supplies and serves as a drop-in replacement for DG202 in precision audio routing and data acquisition front-ends.
For engineers reviewing the DG442DJ datasheet, DG442DJ pinout, DG442DJ application, or DG442DJ equivalent, key selection criteria include its logic-inverted control scheme (IN = HIGH → OFF), low 1pC typical charge injection, 60dB OFF isolation at 1MHz, and PDIP-16 package compatibility with legacy through-hole test fixtures and industrial control PCBs.
Technical Context
The DG442DJ implements four independent bilateral analog switches using a high-voltage silicon-gate CMOS process with epitaxial layer latch-up protection. Its logic polarity is inverted relative to DG441: a logic HIGH (≥2.4V) disables all channels, while LOW (≤0.8V) enables them.
It supports rail-to-rail analog signal switching up to ±20V with matched ON resistance across channels and minimal variation over ±5V input range. Supply voltage flexibility includes asymmetric operation up to 44V differential, with V+ max = +34V and V− max = −25V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ON Resistance | 85Ω max at +25°C (ensures <0.1% gain error in 10kΩ precision resistor networks) |
| Switch Turn-On Time | 250ns max (supports ≤2MHz multiplexed sampling in data acquisition systems) |
| Analog Signal Range | ±20V max (handles full-scale industrial sensor outputs without external level-shifting) |
| Charge Injection | ±1pC typical (reduces hold-step error to <10μV in 1nF sample-and-hold circuits) |
| OFF Isolation | 60dB at 1MHz (prevents crosstalk between adjacent audio channels or sensor inputs) |
| Supply Voltage Range | Single: +5V to +34V; Dual: ±5V to ±22V (enables direct interface with ±15V op-amps and 24V PLC I/O) |
| Logic Compatibility | TTL/CMOS inputs with 0.8V low / 2.4V high thresholds (interoperates with 5V microcontrollers and FPGAs) |
Pinout & Package
DG442DJ is housed in a 16-lead plastic dual-in-line package (PDIP) per JEDEC MS-001-BB, 0.300" wide body, with 0.100" lead pitch. Pin 12 is NC (no internal connection); substrate connection is tied to V+ (pin 13).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 9, 16 | IN1–IN4 | Active-low logic controls: HIGH disables, LOW enables corresponding switch |
| 2, 7, 10, 15 | D1–D4 | Drain (output) terminals - bidirectional, matched to source pins |
| 3, 6, 11, 14 | S1–S4 | Source (input) terminals - fully interchangeable with drain for AC signals |
| 4 | V− | Negative supply rail - must be ≤−25V referenced to GND |
| 5 | GND | Logic common reference - separate from analog ground in mixed-signal layouts |
| 13 | V+ | Positive supply and substrate tie - limits max V+ to +34V vs GND |
| 12 | NC | No internal connection - must remain unconnected per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Inverted logic control | Enables fail-safe OFF state during MCU reset or power-up sequencing |
| Bilateral analog switching | Supports bidirectional signal flow (e.g., sensor excitation and return in bridge circuits) |
| Low charge injection (±1pC) | Minimizes droop and settling time in precision sample-and-hold topologies |
| 44V max supply differential | Permits use with high-voltage industrial transducers without external level shifters |
| Pb-free PDIP option | RoHS-compliant through-hole package compatible with wave soldering (not reflow) |
Applications
| Audio Switching | Data Acquisition |
|---|---|
Use Scenario: Routing line-level stereo signals between multiple DACs and headphone amplifiers in pro-audio mixers. IC Role / Device Role / Timing Role: Quad SPST analog switch providing channel-selectable signal path with <60dB inter-channel isolation. Use Value: Eliminates mechanical relay wear and contact bounce while preserving THD+N <0.002% across 20Hz–20kHz bandwidth. |
Use Scenario: Multiplexing 16-channel thermocouple inputs into a single 24-bit sigma-delta ADC in environmental monitoring systems. IC Role / Device Role / Timing Role: Precision analog switch enabling sequential sampling with <10μV hold-step error per channel. Use Value: Reduces BOM count by replacing four discrete DG202s and simplifies layout with matched rDS(ON) across all channels. |
| Sample and Hold Circuits | Industrial Control Interfaces |
Use Scenario: Capturing transient voltage spikes from motor drive current sensors for real-time fault detection. IC Role / Device Role / Timing Role: Low-charge-injection switch isolating the hold capacitor during acquisition phase. Use Value: Limits aperture uncertainty to <250ps and hold droop to <5μV/ms, enabling reliable 100kHz event capture. |
Use Scenario: Isolating 4–20mA loop-powered sensor outputs from PLC analog input modules in hazardous-area instrumentation. IC Role / Device Role / Timing Role: High-voltage-tolerant analog switch decoupling field wiring from sensitive measurement circuitry. Use Value: Withstands ±20V common-mode transients and supports 44V supply headroom for 24V loop compliance. |
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 | Same logic polarity (inverted), but 40Ω max rDS(ON) and 125ns tON; requires ±15V or 12V single supply only | Better performance in high-speed DAQ, but lacks DG442DJ's 34V single-supply capability | Select ADG442BRZ when speed and ON-resistance outweigh supply flexibility needs |
| MAX4618ESE+ | Non-inverting logic (HIGH = ON); 60Ω max rDS(ON); 100ns tON; rated for 36V supply max | Simpler MCU interface (no logic inversion), but incompatible with existing DG202/DG442 firmware | Choose MAX4618ESE+ for new designs requiring direct GPIO control without software inversion |
Compared with ADG442BRZ and MAX4618ESE+, the DG442DJ offers unique 34V single-supply operation and proven drop-in compatibility with DG202 footprints, making it optimal for industrial retrofits where supply architecture and layout reuse are critical.
Availability
DG442DJ is available at Aetrix Electronics and suitable for industrial control interfaces, precision data acquisition systems, and professional audio routing requiring stable component supply across extended temperature ranges (−40°C to +85°C).
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
Intersil Corporation (now part of Renesas Electronics) designs high-performance analog and mixed-signal ICs for industrial, aerospace, and communications markets, with ISO 9001-certified manufacturing.
The DG442DJ belongs to Intersil's legacy analog switch product line, engineered specifically for reliability-critical applications requiring latch-up immunity, wide supply tolerance, and direct DG202 upgrade paths.
FAQ
What is the logic polarity of DG442DJ compared to DG441DJ?
The DG442DJ uses inverted logic control: a logic HIGH (≥2.4V) turns all switches OFF, while a logic LOW (≤0.8V) turns them ON. This is the exact opposite of DG441DJ, which activates switches on HIGH. The DG442DJ pinout and electrical specs are otherwise identical to DG441DJ, making them functionally interchangeable except for control signal polarity. Always verify MCU output states during power-up to prevent unintended conduction in DG442DJ circuits.
Can DG442DJ operate from a single 24V supply?
Yes, DG442DJ supports single-supply operation from +5V to +34V. At +24V, it delivers ≤100Ω rDS(ON) over temperature and maintains full ±20V analog signal range. The GND pin (pin 5) serves as the logic reference, while V− (pin 4) must be tied to GND in single-supply configurations. Ensure digital inputs remain within 0.8V/2.4V thresholds relative to GND, and confirm thermal dissipation stays within 90°C/W θJA limit for PDIP packaging.
Is pin 12 (NC) required to be left floating on DG442DJ?
Yes, pin 12 has no internal connection and must remain unconnected in all DG442DJ layouts. Soldering, grounding, or tying it to any voltage violates the datasheet specification and may cause unpredictable behavior or increased leakage. This NC designation is consistent across all DG441/DG442 variants in PDIP, SOIC, and TSSOP packages, and applies identically to DG442DJ.
How does DG442DJ handle analog signals exceeding ±15V?
DG442DJ supports analog signals up to ±20V when powered from ±15V supplies, verified per Absolute Maximum Ratings and Electrical Specifications tables. Operation beyond ±15V requires strict adherence to supply voltage limits: V+ must not exceed +34V and V− must not fall below −25V relative to GND. Exceeding these rails risks permanent damage. For ±20V signal handling, use ±15V supplies and ensure all external circuitry respects the 44V max differential rating.
What is the maximum allowable charge injection for DG442DJ in sample-and-hold designs?
DG442DJ specifies ±1pC typical charge injection (Q), measured with CL = 1nF and RG = 0Ω. This value directly determines hold-step error: for a 1nF capacitor, ±1pC yields ±1mV step. In precision applications, keep total injected charge below 0.5pC by limiting analog slew rate and using guard traces. The DG442DJ's low Q-achieved via optimized channel geometry-makes it suitable for 16-bit+ sample-and-hold circuits where DG202-level injection would degrade accuracy.
DG442DJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- 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):
- -
- Voltage - Supply, Single (V+):
- 5V ~ 34V
- Voltage - Supply, Dual (V±):
- ±5V ~ 22V
- 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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