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Analog Devices Inc./Maxim Integrated DG401CY
- Part No.:
- DG401CY
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG401CY.pdf
- Description:
- IC SWITCH SPST-NOX2 45OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,790
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Product details
Overview
DG401CY from Maxim Integrated is a dual, high-speed, single-pole/single-throw (SPST) analog switch optimized for precision signal routing in bipolar or single-supply systems. It features 20Ω typical on-resistance, 2Ω maximum matching between channels, 15pC max charge injection, and operates from ±4.5V to ±20V or +10V to +30V supplies. It is used in sample-and-hold circuits and audio signal routing where rail-to-rail analog conduction and low distortion are critical.
For engineers reviewing the DG401CY datasheet, DG401CY pinout, DG401CY application, or DG401CY equivalent, this page delivers verified electrical specs, package mapping to 16-pin narrow SO, truth-table–validated logic behavior, thermal leakage data at +85°C, and real-world switching performance metrics including 150ns tON and 100ns tOFF.
Technical Context
The DG401CY implements a silicon-gate CMOS process with substrate tied to V+, enabling robust ±15.5V analog signal handling across its full -15V to +15V range. Its TTL/CMOS-compatible digital inputs accept VL = +5V logic while supporting supply voltages up to ±20V without level-shifting.
It uses break-before-make switching architecture (confirmed for DG403 only; DG401 is SPST NO with no break-before-make requirement), exhibits guaranteed rDS(ON) flatness ≤3Ω over signal range, and maintains <5nA off-leakage at +85°C - a key differentiator versus legacy DG401 variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance (rDS(ON)) | 20Ω typ / 30Ω max - ensures minimal signal attenuation and voltage drop in precision analog paths |
| On-resistance match | ≤2Ω max - enables matched gain/phase response in dual-channel instrumentation front-ends |
| Charge injection | 15pC max - limits voltage glitch in sample-and-hold and ADC multiplexing applications |
| Off-leakage current | <5nA at +85°C - preserves accuracy in high-impedance sensor interfaces and long-hold circuits |
| Switching speed | tON ≤150ns, tOFF ≤100ns - supports >5MHz multiplexing in test equipment and comms systems |
| Analog signal range | −15V to +15V - fully rail-to-rail operation with ±15V supplies, no headroom loss |
| Supply range | ±4.5V to ±20V or +10V to +30V - flexible power architecture for industrial and military designs |
Pinout & Package
Package: 16-pin narrow SO (Small Outline), 3.9mm body width, RoHS-compliant, JEDEC MS-012AC compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8 | D1, D2 (Drain) | Analog output terminals - bidirectional, low-capacitance (12pF off, 39pF on) signal paths |
| 2, 10 | IN1, IN2 (Logic Input) | TTL/CMOS-compatible control inputs - require VL = +5V for guaranteed logic thresholds |
| 9, 16 | S1, S2 (Source) | Analog input terminals - conduct equally well in either direction; connected to signal source |
| 11 | V+ | Positive supply input - also substrate connection; must be powered first during sequencing |
| 12 | VL | Logic supply input - fixed at +5V for TTL compatibility; not tied to V+ unless explicitly designed |
| 13 | GND | Ground reference - common return for logic and analog sections; separate from power ground in layout |
| 14 | V− | Negative supply input - enables true bipolar operation; clamped internally to prevent latch-up |
| 2–7, 15 | N.C. | No internal connection - floating pins; must remain unconnected per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog conduction | Supports signals from V− to V+ without clipping - essential for full-scale dynamic range in data acquisition |
| Guaranteed rDS(ON) flatness | ≤3Ω variation across −10V to +10V signal range - minimizes harmonic distortion in audio and video routing |
| Low power consumption | 35µW max - enables use in battery-operated guidance systems and portable test gear |
| Improved off-leakage | <5nA at +85°C - extends hold time in sample-and-hold circuits beyond 10 seconds at 10MΩ input impedance |
| Plug-in upgrade path | Pins, footprint, and logic behavior identical to legacy DG401 - zero PCB change required for reliability upgrades |
Applications
| Sample-and-Hold Circuits | Audio Signal Routing |
|---|---|
Use Scenario: Precision sampling of sensor outputs before ADC conversion in data loggers. IC Role / Device Role / Timing Role: SPST analog switch controlling hold capacitor charging path with minimal charge injection. Use Value: 15pC max charge injection prevents voltage step errors; 20Ω rDS(ON) ensures fast settling into 10nF hold capacitors. |
Use Scenario: Multiplexing line-level audio signals in studio mixing consoles and broadcast equipment. IC Role / Device Role / Timing Role: Bidirectional analog switch routing stereo channels with channel-matched on-resistance. Use Value: ≤2Ω rDS(ON) match preserves left/right channel balance; 90dB crosstalk prevents inter-channel bleed at 1MHz. |
| Test Equipment | Military Radios |
Use Scenario: Automated signal path configuration in ATE systems performing parametric testing of RF modules. IC Role / Device Role / Timing Role: High-speed analog switch enabling sub-200ns reconfiguration of stimulus/response paths. Use Value: 150ns tON and 100ns tOFF support >3MHz test sequencing; ±20V supply tolerance accommodates wide-swing DUT interfaces. |
Use Scenario: Signal conditioning and band selection in ruggedized HF/VHF transceivers deployed in field environments. IC Role / Device Role / Timing Role: Analog switch isolating receive paths during transmit bursts to protect sensitive LNA stages. Use Value: <5nA off-leakage at +85°C ensures stable biasing under desert operating conditions; 72dB off-isolation blocks Tx leakage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1419BRUZ | Single SPDT, 1.5Ω rDS(ON), but requires dual supplies only; no single-supply mode | Better on-resistance but lacks DG401CY's +10V to +30V single-supply flexibility | Choose ADG1419BRUZ only when ultra-low on-resistance is prioritized over supply versatility |
| TS5A23157DCKR | Lower voltage (5.5V max), 0.9Ω rDS(ON), but rated only to +85°C and lacks ±20V capability | Cost-effective for consumer audio, but unsuitable for industrial/military bipolar signal routing | Select TS5A23157DCKR for low-voltage, high-volume commercial designs - not for DG401CY's target use cases |
Compared with ADG1419BRUZ and TS5A23157DCKR, the DG401CY uniquely combines wide-supply operation (+10V to +30V or ±4.5V to ±20V), guaranteed channel matching, and military-temperature-grade leakage performance - making it irreplaceable in high-reliability analog multiplexing where supply headroom and thermal stability are non-negotiable.
Availability
DG401CY is available at Aetrix Electronics and suitable for sample-and-hold circuits, test equipment, and military radio systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DG401CY 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 defense markets.
The DG401CY belongs to Maxim's legacy high-speed analog switch family, engineered for precision signal routing in harsh environments where rail-to-rail conduction, low charge injection, and guaranteed parameter matching are mandatory.
FAQ
What is the maximum analog signal voltage range supported by the DG401CY?
The DG401CY supports analog signals from V− to V+ - up to ±15V with ±15V supplies, or 0V to +30V with +30V single supply. Absolute maximum ratings allow V+ − V− ≤ 44V, but guaranteed rail-to-rail operation is specified for −15V to +15V under standard test conditions. This range is confirmed in the Electrical Characteristics table and Typical Operating Characteristics graphs.
Does the DG401CY require external blocking diodes for overvoltage protection?
No - the DG401CY includes internal clamping diodes that protect against signal excursions beyond V+ or V−, provided forward current is limited to 20mA. External diodes are optional and only recommended if strict power-supply sequencing cannot be guaranteed. When added, they reduce analog range by ~1V but preserve all other DG401CY specifications including on-resistance and leakage.
Can the DG401CY operate with VL tied directly to V+ instead of +5V?
Yes, but logic thresholds shift: tying VL to V+ makes the device operate with CMOS-level inputs rather than TTL. The datasheet confirms CMOS compatibility across the full ±4.5V to ±20V supply range when VL = V+. However, for guaranteed TTL compatibility (VINH = +2.4V, VINL = +0.8V), VL must be fixed at +5V - a requirement explicitly stated in the Electrical Characteristics test conditions for DG401CY.
What is the thermal performance of DG401CY off-leakage current at elevated temperatures?
DG401CY off-leakage is guaranteed <5nA at +85°C for both source-off (IS(OFF)) and drain-off (ID(OFF)) conditions - a key improvement over earlier DG401 versions. This value is 100% tested at hot temperature and correlated at +25°C. Graph MAX401-5 in the datasheet shows measured off-leakage remains below 2nA up to +70°C and rises gradually to ~4.5nA at +85°C, staying within spec.
Is the DG401CY pin-compatible with older DG401 variants like DG401CJ?
Yes - the DG401CY shares identical pinout, logic behavior, and electrical specifications with DG401CJ (16-pin plastic DIP) and DG401C/D (dice). All DG401 variants use the same functional diagram and truth table. The CY suffix denotes 16-pin narrow SO packaging, but the internal circuitry, timing, and switching characteristics are identical - making DG401CY a direct drop-in replacement for legacy through-hole versions in space-constrained designs.
DG401CY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 45Ohm
- Channel-to-Channel Matching (ΔRon):
- 500mOhm
- Voltage - Supply, Single (V+):
- 10V ~ 30V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 150ns, 100ns
- -3db Bandwidth:
- -
- Charge Injection:
- 10pC
- Channel Capacitance (CS(off), CD(off)):
- 12pF, 12pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -90dB @ 1MHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG401CY FAQ
1.How can I place an order for DG401CY through Aetrix?
Please submit a Request for Quotation (RFQ) for DG401CY 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 DG401CY reliable?
The price and inventory of DG401CY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG401CY is usually 5 days.
3.What payment methods are accepted for DG401CY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG401CY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG401CY?
DG401CY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG401CY 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 DG401CY?
For technical support, including DG401CY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG401CY requirements.
6.How does Aetrix verify that DG401CY is sourced from the original manufacturer or authorized distributors?
All DG401CY 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 DG401CY meets industry standards.
7.What is the process for return or replacement of DG401CY?
All DG401CY units undergo pre-shipment inspection (PSI). If there is an issue with DG401CY, 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 DG401CY part is unused and in its original packaging.
Return procedure for DG401CY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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