Analog Devices Inc./Maxim Integrated DG417CY
- Part No.:
- DG417CY
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG417CY.pdf
- Description:
- IC SWITCH SPST-NCX1 35OHM 8SOIC
- Quantity:
- Payment:

- Shipping:

Inventory:4,415
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Product details
Overview
DG417CY from Maxim Integrated is a precision CMOS single-pole/single-throw (SPST) analog switch with normally closed (NC) configuration, 35Ω max on-resistance, <5nA off-leakage at +85°C, and guaranteed 3Ω max on-resistance matching between channels - designed for high-fidelity signal routing in sample-and-hold circuits, audio systems, and battery-operated test equipment.
For engineers reviewing the DG417CY datasheet, DG417CY pinout, DG417CY application, or DG417CY equivalent, this device supports rail-to-rail analog signal handling from ±4.5V to ±20V bipolar supplies or +10V to +30V single supply, features TTL/CMOS logic compatibility, low 10pC max charge injection, and ESD tolerance of 2000V per Method 3015.7.
Technical Context
The DG417CY implements a silicon-gate CMOS process optimized for precision analog switching, with matched transistor pairs ensuring ≤3Ω on-resistance matching and ≤4Ω on-resistance flatness over full signal range. Its NC topology provides fail-safe continuity when control logic is inactive.
It operates with dual-supply biasing (V+, V−), logic-level supply (VL), and ground-referenced digital inputs - enabling robust operation across industrial temperature range (0°C to +70°C) while maintaining sub-175ns turn-on time and <5nA leakage at elevated temperatures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RDS(ON)) | 35Ω max - ensures minimal signal attenuation and voltage drop in precision analog paths |
| On-Resistance Match | 3Ω max - enables accurate channel-to-channel signal tracking in multi-switch configurations |
| Charge Injection | 10pC max - reduces sampling error and pedestal distortion in sample-and-hold applications |
| Off-Leakage Current | <5nA at +85°C - preserves signal integrity in high-impedance sensor interfaces and long-hold circuits |
| Supply Range | ±4.5V to ±20V bipolar or +10V to +30V single - supports wide dynamic range signal conditioning without level-shifting |
| Switching Time (tON) | <175ns max - suitable for medium-speed data acquisition and multiplexed ADC front-ends |
| ESD Tolerance | 2000V min per Method 3015.7 - enhances reliability during board handling and system integration |
Pinout & Package
Package: 8-pin SOIC (Small Outline Integrated Circuit), surface-mount, RoHS-compliant, 150 mil width.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Analog Switch Source (S) | Normally closed terminal - maintains conductive path to Drain (Pin 8) when IN is low |
| 2 | No Internal Connection (N.C.) | Unbonded pad - must be left floating; no electrical function or thermal role |
| 3 | Ground (GND) | Logic reference and substrate tie - connects to system digital ground plane |
| 4 | Analog Positive Supply (V+) | Bias rail for analog channel - sets upper limit of rail-to-rail signal swing |
| 5 | Logic Supply (VL) | Input threshold reference - set to +5V for TTL compatibility or tied to V+ for CMOS logic levels |
| 6 | Logic Input (IN) | Active-low control - drives switch open (high-Z) when logic high; closes path when logic low |
| 7 | Analog Negative Supply (V−) | Bias rail for analog channel - sets lower limit of rail-to-rail signal swing |
| 8 | Analog Switch Drain (D) | Common output node - connected to S (Pin 1) when IN = low; isolated when IN = high |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals spanning V− to V+ without clipping - critical for ±15V instrumentation front-ends |
| Guaranteed on-resistance flatness | ≤4Ω variation across full signal range - maintains consistent gain and linearity in precision gain-setting networks |
| TTL/CMOS logic compatibility | Accepts 0.8V/2.4V input thresholds with VL = 5V - simplifies interface to microcontrollers and FPGAs |
| Low power consumption | 35µW max - enables use in portable and energy-constrained systems without thermal derating |
| Improved off-isolation rejection | 68dB min at 1MHz - suppresses crosstalk between adjacent channels in dense multiplexer layouts |
Applications
| Sample-and-Hold Circuits | Audio Signal Routing |
|---|---|
Use Scenario: Capturing and holding fast-changing sensor voltages for ADC conversion in data acquisition systems. IC Role / Device Role / Timing Role: Normally closed analog switch isolating hold capacitor from input during acquisition phase. Use Value: Low 10pC charge injection minimizes hold-step error; 35Ω RDS(ON) ensures rapid settling before hold command. |
Use Scenario: Selecting between multiple microphone or line-level inputs in professional audio mixers. IC Role / Device Role / Timing Role: Low-distortion SPST switch enabling silent, pop-free channel selection under microcontroller control. Use Value: Rail-to-rail operation preserves full audio dynamic range; <5nA leakage prevents DC offset drift in AC-coupled paths. |
| Test Equipment | Battery-Operated Systems |
Use Scenario: Multiplexing calibration references and DUT signals in automated test equipment (ATE). IC Role / Device Role / Timing Role: Precision analog switch providing repeatable, low-drift signal path selection in metrology-grade instruments. Use Value: Guaranteed 3Ω RDS(ON) match ensures identical gain error across channels; ±20V supply support covers wide test voltage ranges. |
Use Scenario: Managing power domains and sensor connections in handheld medical monitors or portable data loggers. IC Role / Device Role / Timing Role: Low-quiescent-current analog switch enabling battery life extension via selective signal path enablement. Use Value: 35µW max power dissipation reduces standby load; 2000V ESD rating improves field reliability in unshielded environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1419BRMZ | SPDT configuration, 4.7Ω RDS(ON), +3.3V/+5V logic only, no bipolar supply support | Requires external level-shifting for ±15V analog rails; better suited for low-voltage mixed-signal SoC interfaces | Select when system uses only single-supply logic and compact SPDT routing is needed |
| TS5A23157DGSR | SPDT, 0.9Ω RDS(ON), 1.65V–5.5V supply, not rated for >±12V analog signals | Limited to low-voltage consumer electronics; cannot replace DG417CY in industrial ±15V signal chains | Choose only for cost-sensitive, low-voltage portable designs where precision bipolar operation is unnecessary |
Compared with ADG1419BRMZ and TS5A23157DGSR, the DG417CY uniquely supports true bipolar ±20V analog operation with NC topology and guaranteed matching - making it irreplaceable in legacy instrumentation and high-dynamic-range sample-and-hold systems requiring fail-safe continuity.
Availability
DG417CY is available at Aetrix Electronics and suitable for sample-and-hold circuits, audio signal routing, and test equipment requiring stable component supply, long-term lifecycle assurance, and traceable sourcing from original manufacturer stock.
Supply support for DG417CY 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 computing markets.
The DG417CY belongs to Maxim's precision analog switch product line, engineered for applications demanding low leakage, tight RDS(ON) matching, and robust bipolar supply operation - particularly in instrumentation and military-grade signal routing.
FAQ
What is the operating temperature range for the DG417CY?
The DG417CY is specified for operation from 0°C to +70°C. This commercial-grade temperature range is confirmed in the Ordering Information table and applies specifically to the CY suffix variant. The DG417CY uses an 8-pin SOIC package and is not rated for extended industrial (−40°C to +85°C) or military (−55°C to +125°C) temperature ranges - those require DJ, DK, or AK suffix variants. Always verify ambient and junction temperature limits against actual PCB layout and power dissipation.
Does the DG417CY support single-supply operation?
Yes, the DG417CY supports single-supply operation from +10V to +30V, with V− connected to ground. In this configuration, the analog signal range extends from 0V to V+, enabling rail-to-rail performance in unipolar systems. However, on-resistance matching (3Ω max) and flatness (4Ω max) are guaranteed only under bipolar supply conditions per datasheet Note 4 - single-supply use retains full functionality but relaxes those matching specifications.
What is the logic polarity of the DG417CY control input?
The DG417CY has active-low logic control: the switch is closed (source-to-drain path conductive) when the IN pin (Pin 6) is logic low (≤0.8V), and open (high impedance) when IN is logic high (≥2.4V). This normally closed behavior is intrinsic to the DG417CY's architecture and distinguishes it from the DG418CY (normally open) and DG419CY (SPDT). No external inversion is required for fail-safe operation.
Can the DG417CY handle ±15V analog signals reliably?
Yes, the DG417CY is fully rated for ±15V analog signal operation with V+ = +15V and V− = −15V. Its absolute maximum ratings allow up to ±20V, and electrical characteristics tables explicitly list performance data at ±15V. At this supply, RDS(ON) remains ≤35Ω, off-leakage stays <5nA at +85°C, and charge injection is ≤10pC - confirming suitability for precision ±15V instrumentation signal paths.
Is the DG417CY pin-compatible with older DG417 variants?
Yes, the DG417CY maintains identical pinout, package footprint, and electrical interface with legacy DG417CJ (DIP) and DG417C/D (die) variants. All share the same 8-pin SOIC pin assignment: Pin 1 = S, Pin 2 = N.C., Pin 3 = GND, Pin 4 = V+, Pin 5 = VL, Pin 6 = IN, Pin 7 = V−, Pin 8 = D. The CY suffix denotes improved specs - including tighter RDS(ON) match and lower leakage - but requires no PCB or schematic changes for drop-in replacement.
DG417CY 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:
- 1
- On-State Resistance (Max):
- 35Ohm
- Channel-to-Channel Matching (ΔRon):
- 3Ohm (Max)
- Voltage - Supply, Single (V+):
- 10V ~ 30V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 175ns, 145ns
- -3db Bandwidth:
- -
- Charge Injection:
- 3pC
- Channel Capacitance (CS(off), CD(off)):
- 8pF, 8pF
- Current - Leakage (IS(off)) (Max):
- 250pA
- Crosstalk:
- -85dB @ 1MHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
DG417CY FAQ
1.How can I place an order for DG417CY through Aetrix?
Please submit a Request for Quotation (RFQ) for DG417CY 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 DG417CY reliable?
The price and inventory of DG417CY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG417CY is usually 5 days.
3.What payment methods are accepted for DG417CY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG417CY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG417CY?
DG417CY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG417CY 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 DG417CY?
For technical support, including DG417CY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG417CY requirements.
6.How does Aetrix verify that DG417CY is sourced from the original manufacturer or authorized distributors?
All DG417CY 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 DG417CY meets industry standards.
7.What is the process for return or replacement of DG417CY?
All DG417CY units undergo pre-shipment inspection (PSI). If there is an issue with DG417CY, 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 DG417CY part is unused and in its original packaging.
Return procedure for DG417CY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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