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Analog Devices Inc./Maxim Integrated DG441C/D
- Part No.:
- DG441C/D
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- Die
- Datasheet:
-
DG441C/D.pdf
- Description:
- IC SWITCH SPST-NC X 4 85OHM DIE
- Quantity:
- Payment:
- Shipping:
Inventory:4,104
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Product details
Overview
DG441C/D from Maxim Integrated is a quad, normally-closed (NC), single-pole/single-throw (SPST) analog switch IC designed for precision signal routing in rail-to-rail, bipolar or single-supply systems. It features 85Ω max on-resistance, 4Ω max on-resistance matching between channels, 10pC max charge injection, <5nA off-leakage at +85°C, and operates from ±4.5V to ±20V or +10V to +30V supplies - ideal for test equipment and audio-signal routing where channel consistency and low distortion are critical.
For engineers reviewing the DG441C/D datasheet, DG441C/D pinout, DG441C/D application, or DG441C/D equivalent, key selection criteria include guaranteed rDS(ON) flatness (9Ω max), TTL/CMOS logic compatibility, ESD tolerance (2000V min), dual- or single-supply flexibility, and die-level form factor for hybrid or custom module integration.
Technical Context
The DG441C/D implements four independent NC SPST switches using a 44V silicon-gate process, enabling rail-to-rail analog signal handling across its full supply range. Each switch conducts bidirectionally with matched on-resistance (≤4Ω) and tightly controlled on-resistance flatness (≤9Ω) over the signal range under bipolar operation.
It supports fast switching (tON < 250ns, tOFF < 170ns), low power consumption (1.65mW max), and robust ESD protection (2000V min per Method 3015.7). Its logic inputs are TTL/CMOS-compatible, and internal clamping diodes protect S/D terminals against signals exceeding V+ or V−.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | Quad, normally-closed (NC), SPST analog switch - all four channels default closed when logic input is low. |
| rDS(ON) Max | 85Ω at +25°C - ensures minimal signal attenuation in low-current analog paths. |
| rDS(ON) Match | 4Ω max between channels - enables precise gain/phase matching in multi-channel instrumentation. |
| Charge Injection | 10pC max - reduces voltage glitch and settling error in sample-and-hold and multiplexed ADC front-ends. |
| Off-Leakage Current | <5nA at +85°C - preserves DC accuracy in high-impedance sensor interfaces and battery-operated systems. |
| Supply Range | ±4.5V to ±20V (bipolar) or +10V to +30V (single) - supports industrial, military, and telecom voltage rails without level-shifting. |
| ESD Rating | 2000V min per Method 3015.7 - provides built-in handling robustness for assembly and field environments. |
Pinout & Package
DG441C/D is supplied as a bare die (dice) - no leadframe or molded package - intended for hybrid microcircuit assembly, chip-on-board (COB), or custom module integration. The die includes bond pads corresponding to the 16-pin DIP/SO pinout layout, with exposed substrate connection to V+.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 | Digital control input | Active-low logic inputs: low = switch closed (NC function); compatible with TTL/CMOS voltage thresholds. |
| D1–D4 | Analog drain terminal | Bidirectional analog node - connects to signal source or load depending on system topology; clamped to V+/V−. |
| S1–S4 | Analog source terminal | Bidirectional analog node - completes switch path with corresponding Dx; rail-to-rail capable. |
| V+ | Positive supply | Connects to substrate; must be tied to highest potential in bipolar mode or +10V to +30V in single-supply mode. |
| V− | Negative supply | Required for bipolar operation (±4.5V to ±20V); tie to GND for single-supply use (+10V to +30V). |
| GND | Ground reference | Logic ground reference; separate from analog signal ground unless system design mandates common reference. |
| N.C. | No internal connection | Pin 10 (DIP/SO) has no internal bond - electrically floating; must not be connected in layout. |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed rFLAT(ON) | 9Ω max over full analog signal range - ensures linear gain response in precision attenuators and programmable gain stages. |
| Low charge injection | 10pC max - minimizes sampling error in data acquisition systems with >12-bit resolution requirements. |
| Improved off-leakage | <5nA at +85°C - maintains accuracy in high-impedance thermistor or photodiode front-ends over temperature. |
| Rail-to-rail signal handling | Supports analog signals from V− to V+ - eliminates need for external level-shifting in wide-dynamic-range systems. |
| TTL/CMOS logic interface | Input thresholds of 0.8V (low) and 2.4V (high) - allows direct interfacing with standard microcontrollers and FPGAs. |
Applications
| Test Equipment Signal Routing | Audio-Signal Multiplexing |
|---|---|
Use Scenario: Automated test equipment (ATE) uses multiple DG441C/D dice to route calibration signals between DUT interfaces and measurement instruments. IC Role / Device Role / Timing Role: Quad NC SPST switch providing low-distortion, low-leakage signal path selection with sub-250ns switching for high-throughput test sequencing. Use Value: 4Ω rDS(ON) match ensures consistent channel gain across parallel test paths, reducing calibration overhead and improving measurement repeatability. | Use Scenario: High-fidelity audio mixer board routes line-level signals between input sources and output buses using discrete analog switching. IC Role / Device Role / Timing Role: Normally-closed analog switch enabling silent mute-by-default behavior and zero-crossing switching via synchronized logic control. Use Value: 10pC charge injection prevents audible pop/click during channel switching, while rail-to-rail support preserves full dynamic range of ±12V audio rails. |
| Sample-and-Hold Front-End | Military Radio Signal Conditioning |
Use Scenario: Precision data acquisition system samples sensor outputs using a multiplexer followed by a sample-and-hold amplifier. IC Role / Device Role / Timing Role: DG441C/D serves as low-leakage, low-charge-injection analog switch in the multiplexer stage before the hold capacitor. Use Value: <5nA off-leakage at +85°C prevents hold capacitor drift over time, extending effective sampling aperture and maintaining 16-bit DC accuracy. | Use Scenario: Tactical radio transceiver conditions IF signals between filtering, amplification, and modulation stages under extended temperature operation. IC Role / Device Role / Timing Role: Quad SPST switch isolates signal paths during mode transitions (e.g., RX/TX switching) in ruggedized hybrid assemblies. Use Value: 2000V ESD rating and 44V process enable reliable operation in harsh electromagnetic environments without external protection components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617C/D | Quad SPST, normally-open (NO), 60Ω rDS(ON), 2.5V to 36V supply, 20pC charge injection | Requires active-high logic drive; higher on-resistance and charge injection limit use in precision sample-and-hold | Select when NO logic polarity is required and lower leakage at extreme temperatures is less critical than cost. |
| ADG1411YCPZ-REEL7 | Quad SPST, NC, 1.8Ω rDS(ON), ±15V supply, 0.2pC charge injection, but only available in 16-lead LFCSP | Superior performance but incompatible die form factor; requires PCB redesign and requalification | Choose only if system-level performance demands justify packaging change and qualification effort. |
Compared with MAX4617C/D and ADG1411YCPZ-REEL7, DG441C/D uniquely balances NC functionality, die-level integration, 4Ω channel matching, and proven 2000V ESD robustness - making it optimal for hybrid military, test, and high-reliability embedded designs where footprint, thermal management, and supply flexibility are constrained.
Availability
DG441C/D is available at Aetrix Electronics and suitable for test equipment, audio-signal routing, and sample-and-hold circuits requiring stable component supply, long-term obsolescence mitigation, and direct die-level integration into custom substrates or hermetic modules.
Supply support for DG441C/D 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 automotive markets.
The DG441C/D belongs to Maxim's legacy high-voltage analog switch product line, engineered for precision signal routing in demanding environments where rail-to-rail operation, low leakage, and robust ESD tolerance are essential.
FAQ
What is the operating temperature range for DG441C/D?
The DG441C/D is rated for 0°C to +70°C operation. This temperature grade is defined in the ordering information table and applies specifically to the DG441C/D variant. It is distinct from the wider-range DG441D/E (–40°C to +85°C) and DG441AK/MY (–55°C to +125°C) variants. Thermal derating and leakage performance are validated within this range.
Is DG441C/D a normally-open or normally-closed switch?
DG441C/D is a normally-closed (NC) analog switch. When the digital input (INx) is logic low (≤0.8V), the corresponding switch is closed; when high (≥2.4V), it opens. This behavior is explicitly defined in the functional diagrams and truth tables for the DG441 family - in contrast to the DG442, which is normally-open. DG441C/D implements four independent NC SPST switches.
Does DG441C/D support single-supply operation?
Yes, DG441C/D supports single-supply operation from +10V to +30V. In this configuration, V− must be connected to ground (0V), and the analog signal range extends from 0V to V+. The datasheet confirms this in both the General Description and Electrical Characteristics sections, including specific single-supply test conditions (e.g., V+ = 12V, V− = 0V).
What does the "/D" suffix mean in DG441C/D?
The "/D" suffix in DG441C/D indicates the die (bare die) version of the device. As confirmed in the Ordering Information table, DG441C/D is specified for 0°C to +70°C operation and packaged as dice - not in plastic DIP, SO, or QFN. This format is intended for hybrid circuit assembly, chip-on-board integration, or custom module fabrication where leaded packages are unsuitable.
Can DG441C/D be used with unbalanced supplies like +24V and –5V?
Yes, DG441C/D can operate with unbalanced supplies such as +24V and –5V, provided the total voltage difference (V+ – V−) does not exceed 44V and each supply remains within its absolute maximum ratings (V+ ≤ 44V referenced to V−, GND ≤ 25V referenced to V−). The Applications Information section explicitly states this capability and notes that analog signal range adjusts accordingly.
DG441C/D Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- 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):
- 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
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Die
DG441C/D FAQ
1.How can I place an order for DG441C/D through Aetrix?
Please submit a Request for Quotation (RFQ) for DG441C/D 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 DG441C/D reliable?
The price and inventory of DG441C/D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG441C/D is usually 5 days.
3.What payment methods are accepted for DG441C/D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG441C/D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG441C/D?
DG441C/D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG441C/D 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 DG441C/D?
For technical support, including DG441C/D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG441C/D requirements.
6.How does Aetrix verify that DG441C/D is sourced from the original manufacturer or authorized distributors?
All DG441C/D 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 DG441C/D meets industry standards.
7.What is the process for return or replacement of DG441C/D?
All DG441C/D units undergo pre-shipment inspection (PSI). If there is an issue with DG441C/D, 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 DG441C/D part is unused and in its original packaging.
Return procedure for DG441C/D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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