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Analog Devices Inc./Maxim Integrated DG441CY+T
- Part No.:
- DG441CY+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG441CY+T.pdf
- Description:
- IC SWITCH SPST-NCX4 85OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,250
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Product details
Overview
DG441CY+T from Maxim Integrated is a quad, normally-closed (NC) SPST analog switch IC designed for precision signal routing in rail-to-rail, bipolar- or single-supply systems. It delivers 85Ω max on-resistance, 4Ω max on-resistance matching between channels, <5nA off-leakage at +85°C, 10pC max charge injection, and operates from ±4.5V to ±20V or +10V to +30V supplies - enabling use in battery-powered test equipment and audio-signal routing.
For engineers reviewing the DG441CY+T datasheet, DG441CY+T pinout, DG441CY+T application, or DG441CY+T equivalent, key selection criteria include guaranteed rDS(ON) flatness (9Ω max), TTL/CMOS logic compatibility, ESD tolerance (2000V min), low power consumption (1.65mW), and NC configuration across all four switches.
Technical Context
The DG441CY+T implements four independent, normally-closed analog switches using a 44V silicon-gate process. Each channel features symmetrical conduction, rail-to-rail analog signal handling (±15.5V with ±16.5V supplies), and logic-inverted control: logic low enables conduction, logic high disables.
It supports dual-supply operation (±4.5V to ±20V) and single-supply mode (+10V to +30V, with V− tied to GND). On-resistance matching (4Ω max) and flatness (9Ω max) are guaranteed only under bipolar-supply conditions, per datasheet Note 4.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| rDS(ON) | 85Ω max - ensures minimal signal attenuation and voltage drop across switched paths at full analog range. |
| rDS(ON) Match | 4Ω max - guarantees consistent gain/attenuation across all four channels in multi-path signal conditioning. |
| rFLAT(ON) | 9Ω max - maintains stable on-resistance over entire analog input range, critical for precision instrumentation. |
| Charge Injection | 10pC max - minimizes voltage glitch on sample-hold capacitors, preserving accuracy in data acquisition. |
| Off-Leakage (IS(OFF)) | <5nA at +85°C - reduces error drift in high-impedance sensor interfaces and long-duration hold circuits. |
| tON/tOFF | <250ns / <170ns - supports fast multiplexing in automated test equipment and real-time signal switching. |
| Supply Range | ±4.5V to ±20V or +10V to +30V - enables flexible integration into legacy bipolar systems and modern single-rail industrial designs. |
Pinout & Package
DG441CY+T is housed in a 16-pin narrow SOIC package (S16-3), with exposed pad not present. Pin functions are validated per Maxim's official pin description table and top-view diagrams.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 (Pins 15,14,7,6) | Digital control inputs | Inverted logic: low = switch closed (NC); compatible with TTL/CMOS voltage levels. |
| D1–D4 (Pins 16,13,5,8) | Analog drain terminals | Switch output side; bidirectional conduction supported; must remain within V−–V+ range. |
| S1–S4 (Pins 1,12,9,4) | Analog source terminals | Switch input side; symmetric with drains; rail-to-rail signal handling up to ±15.5V. |
| V+ (Pin 11) | Positive supply | Connects to substrate; must be ≥ V− + 0.3V; max 44V above V−. |
| V− (Pin 2) | Negative supply | Required for bipolar operation; tie to GND for single-supply mode; max 25V below GND. |
| GND (Pin 3) | Ground reference | Logic ground and return path; separate from analog signal ground in mixed-signal layouts. |
| N.C. (Pin 10) | No internal connection | Not bonded; must be left unconnected or tied to GND for mechanical stability only. |
Key Features
| Feature | Design Value |
|---|---|
| Normally closed (NC) topology | All four switches default to conductive state at power-up or logic-low control - enhances fail-safe behavior in safety-critical routing. |
| Bipolar & single-supply support | Operates identically across ±4.5V–±20V and +10V–+30V rails - eliminates need for level-shifting in hybrid power architectures. |
| Guaranteed rDS(ON) flatness | 9Ω max variation across full analog signal range - ensures linear gain response in programmable gain amplifiers and attenuators. |
| Low charge injection (10pC) | Reduces settling error in sample-and-hold circuits without requiring oversized hold capacitors or recalibration. |
| ESD tolerance (2000V min) | Meets Method 3015.7 - improves robustness during board handling and field deployment in industrial environments. |
Applications
| Sample-and-Hold Circuits | Test Equipment Multiplexing |
|---|---|
|
Use Scenario: Capturing precise analog waveforms in automated test systems with microsecond-level timing constraints. IC Role / Device Role / Timing Role: Normally-closed analog switch controlling hold capacitor connection; provides fail-safe closure during power loss or reset. Use Value: 10pC max charge injection prevents voltage step errors on the hold capacitor, maintaining DC accuracy to <0.01% FS. |
Use Scenario: Routing multiple sensor outputs to a shared ADC in benchtop multimeters or calibration standards. IC Role / Device Role / Timing Role: Quad SPST switch enabling sequential channel selection with sub-250ns switching and matched on-resistance. Use Value: 4Ω max rDS(ON) match ensures uniform channel gain, eliminating correction tables in firmware. |
| Audio-Signal Routing | Battery-Operated Systems |
|
Use Scenario: Selecting between line-in, mic-in, and DAC output paths in portable audio mixers or conferencing devices. IC Role / Device Role / Timing Role: Low-distortion analog switch handling rail-to-rail audio signals (±10V) with minimal crosstalk (-100dB). Use Value: 85Ω max rDS(ON) and -100dB crosstalk preserve SNR >95dB across all selected paths. |
Use Scenario: Power-gating unused analog subsystems (e.g., sensors, transceivers) in handheld medical monitors or IoT edge nodes. IC Role / Device Role / Timing Role: NC switch enabling default signal path while allowing controlled isolation via logic control to reduce standby current. Use Value: 1.65mW max power consumption and <5nA off-leakage at +85°C extend battery life beyond 12 months in sleep mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG441BRZ | Quad NC SPST; 75Ω max rDS(ON); 2.5V–12V single-supply only; no bipolar support. | Limited to low-voltage systems; unsuitable for ±15V instrumentation or high-voltage signal chains. | Select when operating strictly below 12V and bipolar capability is unnecessary. |
| TS5A3154DCUR | Quad NC SPST; 0.75Ω typical rDS(ON); 1.65V–5.5V supply; 300mA peak current rating. | Optimized for portable USB/audio interfaces; incompatible with >5.5V supplies or industrial temperature ranges. | Prefer for battery-powered consumer audio where ultra-low on-resistance outweighs voltage range needs. |
Compared with ADG441BRZ and TS5A3154DCUR, DG441CY+T uniquely supports ±20V bipolar operation and guarantees rDS(ON) flatness over full signal range - making it the only option among the three qualified for precision wide-dynamic-range instrumentation.
Availability
DG441CY+T is available at Aetrix Electronics and suitable for test equipment multiplexing, sample-and-hold circuits, and battery-operated systems requiring stable component supply, lead-free compliance, and extended temperature validation.
Supply support for DG441CY+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
Maxim Integrated (now part of Analog Devices) designs high-performance analog, mixed-signal, and power management ICs for industrial, communications, and computing applications.
DG441CY+T belongs to Maxim's precision analog switch product line, engineered specifically for applications demanding low distortion, guaranteed parameter matching, and robust operation across wide supply and temperature ranges.
FAQ
What is the logic polarity of DG441CY+T control inputs?
The DG441CY+T uses inverted logic: a logic-low voltage (≤0.8V) closes all four normally-closed switches, while a logic-high voltage (≥2.4V) opens them. This behavior is confirmed in the truth table and functional diagrams of the DG441CY+T datasheet, and applies identically across all IN1–IN4 pins regardless of supply configuration.
Does DG441CY+T support rail-to-rail analog signal operation?
Yes, DG441CY+T supports rail-to-rail analog signal handling: with ±16.5V supplies, the analog range extends to ±15.5V on both Sx and Dx terminals. This is explicitly specified in the Electrical Characteristics table under "Analog-Signal Range" and verified in Typical Operating Characteristics plots for bipolar and single-supply modes.
What is the maximum allowable voltage difference between V+ and V− for DG441CY+T?
The absolute maximum voltage difference between V+ and V− for DG441CY+T is 44V, as stated in the Absolute Maximum Ratings table. Exceeding this risks permanent damage. This limit holds regardless of whether operating in bipolar mode (e.g., +20V/−20V) or unbalanced mode (e.g., +24V/−5V), provided V+ − V− ≤ 44V.
Is DG441CY+T pin-compatible with legacy DG441 variants like DG441CJ?
Yes, DG441CY+T shares identical pinout and functionality with DG441CJ (16-pin DIP) and other DG441 variants in the same package family. The narrow SOIC footprint (S16-3) matches the mechanical outline and terminal mapping defined in Maxim's Package Information document 21-0041, confirming drop-in replacement capability within SOIC-based designs.
How does DG441CY+T perform at elevated temperatures?
DG441CY+T is rated for 0°C to +70°C operation and guarantees <5nA source off-leakage current at +85°C - a key reliability metric validated per datasheet Note 5. Its on-resistance increases predictably with temperature, remaining within 85Ω max across the full range, and rDS(ON) matching remains ≤4Ω as confirmed in production testing at hot temperature.
DG441CY+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPST - NC
- 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+):
- 10V ~ 30V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 250ns, 120ns
- -3db Bandwidth:
- -
- Charge Injection:
- 5pC
- Channel Capacitance (CS(off), CD(off)):
- 4pF, 4pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -100dB @ 1MHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG441CY+T FAQ
1.How can I place an order for DG441CY+T through Aetrix?
Please submit a Request for Quotation (RFQ) for DG441CY+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 DG441CY+T reliable?
The price and inventory of DG441CY+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG441CY+T is usually 5 days.
3.What payment methods are accepted for DG441CY+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG441CY+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG441CY+T?
DG441CY+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG441CY+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 DG441CY+T?
For technical support, including DG441CY+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG441CY+T requirements.
6.How does Aetrix verify that DG441CY+T is sourced from the original manufacturer or authorized distributors?
All DG441CY+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 DG441CY+T meets industry standards.
7.What is the process for return or replacement of DG441CY+T?
All DG441CY+T units undergo pre-shipment inspection (PSI). If there is an issue with DG441CY+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 DG441CY+T part is unused and in its original packaging.
Return procedure for DG441CY+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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