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Renesas DG444DY-T
- Part No.:
- DG444DY-T
- Manufacturer:
- Renesas
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG444DY-T.pdf
- Description:
- IC SWITCH SPST-NCX4 85OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,546
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Product details
Overview
DG444DY-T from Intersil is a monolithic quad SPST CMOS analog switch with TTL/CMOS-compatible digital inputs, 85Ω max ON resistance, <250ns turn-on time, and ±20V analog signal handling capability. It serves as a drop-in replacement for DG211/DG212 in precision sample-and-hold, audio routing, and data acquisition circuits operating across -40°C to +85°C.
For engineers reviewing the DG444DY-T datasheet, DG444DY-T pinout, DG444DY-T application, or DG444DY-T equivalent, key selection factors include its bilateral AC signal support, low 1pC charge injection, 60dB OFF isolation at 1MHz, and compatibility with single (12V) or split (±15V) supplies - critical for battery-operated and hi-rel systems requiring stable analog switching performance.
Technical Context
The DG444DY-T implements four independent, bidirectional SPST switches using a high-voltage silicon-gate CMOS process with epitaxial layer latch-up protection. Its logic control is active-low: INx = ≤0.8V enables conduction (ON), while ≥2.4V disables (OFF).
It supports dual supply operation (V+ to V− up to 44V) and single-supply mode (V− = GND), with analog signal range spanning -15V to +15V under ±15V supplies or 0–12V under 12V single supply. VL pin sets logic reference independently from power rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ON Resistance (max) | 85Ω at ±15V supplies - ensures minimal signal attenuation and gain error in precision gain-switching amplifier designs |
| Turn-On Time (tON, max) | 250ns at RL=1kΩ, CL=35pF - enables reliable switching in 1MSPS data acquisition systems |
| Charge Injection (typ) | -1pC - reduces hold-mode voltage step error in sample-and-hold circuits without additional correction circuitry |
| OFF Isolation (min) | 60dB at 1MHz - prevents crosstalk between active and inactive channels in multi-signal routing applications |
| Analog Signal Range | ±15V (dual supply) or 0–12V (single supply) - supports industrial sensor interfaces and audio line-level signal handling |
| Supply Voltage Range | V+ to V− ≤ 44V - allows control of ±20V signals with margin, meeting MIL-STD-883 Class B hi-rel requirements |
| Logic Compatibility | TTL and CMOS inputs - simplifies interface with legacy microcontrollers and FPGAs without level-shifting |
Pinout & Package
Package: 16-lead SOIC (M16.15), body width 3.90–4.00 mm, RoHS-compliant Pb-free plus anneal finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 9, 16 (IN1–IN4) | Logic Control Input | Active-low enable: ≤0.8V = ON state; ≥2.4V = OFF state - matches standard TTL thresholds without external pull-ups |
| 2, 7, 10, 15 (D1–D4) | Drain (Output) Terminal | Bidirectional analog output node - interchangeable with source for AC-coupled signals; connects to load or next stage |
| 3, 6, 11, 14 (S1–S4) | Source (Input) Terminal | Bidirectional analog input node - accepts ±15V signals under dual supply; symmetric RDS(ON) ensures matched channel behavior |
| 4 (V−) | Negative Supply Rail | Reference for negative analog swing and substrate bias - must be decoupled locally to minimize noise coupling |
| 5 (GND) | Logic Ground | Common return for digital inputs and VL reference - separate from analog power grounds to avoid digital noise injection |
| 12 (VL) | Logic Reference Voltage | Independent 5V logic threshold reference - isolates switching logic from V+/V− rail fluctuations during dynamic load changes |
| 13 (V+) | Positive Supply Rail | Substrate connection and positive analog rail - requires low-ESR ceramic decoupling within 5mm of pin |
Key Features
| Feature | Design Value |
|---|---|
| Drop-in DG211/DG212 replacement | Identical pinout and function with improved specs - enables direct upgrade in legacy designs without PCB revision |
| Bilateral analog switching | Matched RDS(ON) and capacitance in both directions - preserves signal integrity for AC-coupled audio and sensor signals |
| Low charge injection (-1pC typ) | Minimizes hold-step error in sample-and-hold circuits - eliminates need for external zeroing or calibration in 12-bit systems |
| Latch-up immunity | Epitaxial layer prevents SCR triggering - ensures robust operation in noisy industrial environments with transient surges |
| Pb-free plus anneal packaging | 100% matte tin termination compatible with SnPb and Pb-free reflow - meets IPC/JEDEC J-STD-020 MSL3 requirements |
Applications
| Audio Switching | Data Acquisition |
|---|---|
Use Scenario: Routing line-level stereo signals between multiple codecs and amplifiers in professional audio mixers. IC Role / Device Role / Timing Role: Quad SPST analog switch providing isolated channel selection with <250ns settling to prevent audible clicks during mute/unmute transitions. Use Value: 60dB OFF isolation suppresses inter-channel crosstalk below -100dBFS, preserving dynamic range in 24-bit audio paths. | Use Scenario: Multiplexing 16-channel thermocouple inputs into a single 16-bit ADC in industrial PLC analog input modules. IC Role / Device Role / Timing Role: Precision analog switch enabling cold-junction compensation and sensor calibration path selection with sub-pC charge injection. Use Value: ±15V signal range and 85Ω RDS(ON) ensure <0.01% gain error across -200°C to +1372°C measurement range. |
| Sample and Hold Circuits | Automatic Test Equipment |
Use Scenario: Capturing fast transient waveforms from RF power amplifiers for envelope tracking analysis. IC Role / Device Role / Timing Role: Low-charge-injection switch controlling hold capacitor connection with precise timing synchronized to ADC sampling clock. Use Value: -1pC typical charge injection limits hold-mode voltage droop to <50μV over 10μs, supporting 14-bit ENOB at 1MSPS. | Use Scenario: Reconfigurable signal path routing in semiconductor ATE pin electronics for DUT stimulus/response isolation. IC Role / Device Role / Timing Role: High-isolation analog switch enabling simultaneous test of multiple DUT pins with <100dB channel-to-channel crosstalk suppression. Use Value: 44V max V+–V− rating supports ±20V compliance testing of power management ICs without external level shifters. |
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 120Ω RDS(ON), slower 350ns tON, no VL pin - logic tied to V+; requires external level translation for mixed-supply systems | Optimized for low-voltage (2.7–5.5V) portable applications; lacks ±20V signal handling | Select when cost sensitivity outweighs speed and voltage range; verify logic interface compatibility with host controller |
| ADG1414BRUZ | Lower 1.5Ω RDS(ON), faster 120ns tON, but only ±15V max supply; uses CMOS-compatible logic without VL pin | Targeted at high-precision instrumentation where ON-resistance matching and THD matter more than wide supply range | Choose for 16-bit+ data acquisition where <0.001% gain error is mandatory; confirm thermal derating at full ±15V operation |
Compared with MAX4617ESE+ and ADG1414BRUZ, the DG444DY-T uniquely balances wide ±20V analog range, 250ns switching, and drop-in DG211 compatibility - making it optimal for upgrading legacy industrial and aerospace systems where board space and qualification cycles constrain redesign.
Availability
DG444DY-T is available at Aetrix Electronics and suitable for audio switching, data acquisition, and automatic test equipment requiring stable component supply with long-term industrial temperature support (-40°C to +85°C).
Supply support for DG444DY-T 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 power management ICs for industrial, aerospace, and communications markets.
The DG444DY-T belongs to Intersil's monolithic analog switch product line, engineered for reliability-critical applications demanding latch-up immunity, wide supply range, and seamless legacy device replacement.
FAQ
What is the maximum analog signal voltage the DG444DY-T can handle?
The DG444DY-T supports analog signals up to ±15V when operated with ±15V supplies, and 0–12V with a 12V single supply. Its absolute maximum V+ to V− rating is 44V, enabling safe control of ±20V signals with appropriate headroom - confirmed in Absolute Maximum Ratings (Page 3) and Electrical Specifications (Page 3–4) of FN3586 Rev 10.00.
Is the DG444DY-T pin-compatible with the DG211 series?
Yes, the DG444DY-T is a documented drop-in replacement for the DG211 and DG212 series, sharing identical 16-lead SOIC pinout and functional behavior. Key improvements - including lower ON resistance (<85Ω vs. >100Ω), faster switching (<250ns vs. >300ns), and reduced charge injection - are achieved without altering PCB layout, as stated on Page 1 of FN3586 Rev 10.00.
Does the DG444DY-T require a separate logic supply voltage?
No, the DG444DY-T uses the VL pin to accept an independent 5V logic reference, decoupling digital input thresholds from V+ and V− rails. This allows clean TTL/CMOS-compatible switching even when analog supplies are asymmetric or noisy - a design feature explicitly detailed in Pin Descriptions (Page 2) and Functional Diagrams (Page 2) of the DG444DY-T datasheet FN3586.
What is the typical charge injection value for the DG444DY-T, and why does it matter?
The DG444DY-T exhibits -1pC typical charge injection (Page 3, Electrical Specifications), a critical parameter for sample-and-hold and multiplexer applications. Low charge injection minimizes voltage step errors on hold capacitors, directly improving DC accuracy and reducing need for calibration - especially vital in 12-bit+ data acquisition systems where even 1pC can cause >1 LSB error at 1nF hold capacitance.
Can the DG444DY-T operate from a single 12V supply?
Yes, the DG444DY-T supports single-supply operation with V− = GND and V+ = 12V, delivering 0–12V analog signal range and 450ns max tON. This mode is fully characterized in the "Electrical Specifications (Single Supply)" table (Page 4 of FN3586), confirming functionality for battery-powered and low-voltage industrial systems without requiring negative rails.
DG444DY-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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 ~ 34V
- Voltage - Supply, Dual (V±):
- ±5V ~ 22V
- 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:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG444DY-T FAQ
1.How can I place an order for DG444DY-T through Aetrix?
Please submit a Request for Quotation (RFQ) for DG444DY-T 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 DG444DY-T reliable?
The price and inventory of DG444DY-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG444DY-T is usually 5 days.
3.What payment methods are accepted for DG444DY-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG444DY-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG444DY-T?
DG444DY-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG444DY-T 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 DG444DY-T?
For technical support, including DG444DY-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG444DY-T requirements.
6.How does Aetrix verify that DG444DY-T is sourced from the original manufacturer or authorized distributors?
All DG444DY-T 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 DG444DY-T meets industry standards.
7.What is the process for return or replacement of DG444DY-T?
All DG444DY-T units undergo pre-shipment inspection (PSI). If there is an issue with DG444DY-T, 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 DG444DY-T part is unused and in its original packaging.
Return procedure for DG444DY-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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