DG417CY+ - 35 Ohm SPST Analog Switch | Analog Devices
부품 번호: DG417CY+ ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $3.56 | $3.56 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
DG417CY+ 개요
An analog switch is a semiconductor device that connects or disconnects an analog signal path under digital control. The DG417 belongs to the broader analog switch and multiplexer hierarchy, which sits within interface ICs used for routing sensor, measurement, communications, and test signals. Unlike a mechanical relay, its CMOS implementation supports fast operation, compact integration, and low power consumption, while the normally closed configuration provides a defined signal path when the control input is inactive.
The DG417CY+ is identified as an improved precision switch. The manufacturer describes on-resistance matching of 3 ohm maximum and on-resistance flatness of 4 ohm maximum across the signal range. These characteristics help preserve amplitude accuracy and linearity in systems that repeatedly route low-level analog signals. The verified distributor description lists 35 ohm on-resistance, while an additional source cites a 100 ohm maximum off-leakage figure.
The switch can operate from dual supplies of 10 V to 30 V or from a single supply of 4.5 V to 20 V, allowing integration into both traditional bipolar analog systems and lower-voltage equipment. Its single SPST channel makes it particularly useful for one signal path rather than a multiplexer bank. The control and signal-pin architecture supports straightforward routing in test-and-measurement, instrumentation, communications, and precision acquisition systems.
Typical uses include signal-path isolation, sensor conditioning front ends, automated test equipment, data-acquisition systems, and communication interfaces. The normally closed behavior is valuable when a default connection must remain active before a controller asserts the switch. Designers should account for charge injection, off-leakage, supply sequencing, and the dynamic behavior of the on-resistance rather than treating the switch as an ideal conductor.
For PCB implementation, place the device close to the routed signal to minimize parasitic capacitance and pickup. Keep control traces away from sensitive analog inputs, provide adequate supply decoupling, and verify that the selected control logic is compatible with the device's operating supply. The 8-pin surface-mount package supports compact layouts, but normal reflow and handling practices remain necessary.
This page combines the verified DG417CY+ distributor information, manufacturer product details, package information, and design-focused guidance. It also documents where additional datasheet values, exact pin assignments, pricing tiers, and verified drop-in alternatives are needed, allowing procurement and engineering teams to evaluate the part without treating unverified information as guaranteed.
드롭인 대체품: DG417CY+ — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: DG417CY+ (동일 폼 팩터 및 풋프린트) — 차이점: On-Resistance, On-Resistance Flatness, On-Resistance Matching, Package, Switch Configuration.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
DG417CY+T
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
DG417CY
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
DG417DY+
✅ 드롭인✓ 재고 있음
$3.56 / 개
데이터시트 보기 →DG417DJ-E3
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
MAX317ESA+
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
DG417CY+ 최대 정격 & 전기적 특성
| Product Type | Precision CMOS monolithic analog switch |
| Switch Configuration | 1 circuit, SPST, normally closed |
| Signal Configuration | 1:1 |
| Number of Channels | 1 channel |
| On-Resistance | 35 ohm |
| On-Resistance Matching | 3 ohm maximum |
| On-Resistance Flatness | 4 ohm maximum |
| Off-Leakage | 100 ohm maximum |
| Dual-Supply Operating Range | 10 V to 30 V |
| Single-Supply Operating Range | 4.5 V to 20 V |
| 패키지 | 8-pin NSOIC |
| Package Width | 3.90 mm |
| 실장 유형 | Surface mount |
| Technology | CMOS |
| RoHS 상태 | Compliant |
DG417CY+ 3.90 mm 핀 구성 가이드
DG417CY+(3.90 mm 패키지)의 핀 구성입니다. 핀 번호, 기능, 연결 다이어그램은 제조사 데이터시트에 정의되어 있습니다. 정확한 풋프린트와 솔더링 지침은 해당 문서를 참조하십시오.
다음에 대한 상세 핀아웃 데이터 없음: DG417CY+.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
DG417CY+ 적합 용도: 6 애플리케이션s: Precision Sensor Signal Routing, Automated Test Equipment, Data-Acquisition Front Ends, Communication Interface Isolation, Power and Control Signal Switching, Instrumentation Signal Conditioning.
Precision Sensor Signal Routing
The DG417CY+ fits sensor interfaces that require a normally closed default connection, such as bridge, strain-gauge, or low-level pressure-sensor paths. Its 35 ohm on-resistance, 3 ohm maximum on-resistance matching, and 4 ohm maximum flatness help limit signal-dependent amplitude errors when the switch changes state. The normally closed SPST topology keeps the sensor connected until the control input actively opens the path. Because the verified off-leakage is listed as 100 ohm maximum, engineers should still evaluate leakage against the sensor impedance and acquisition accuracy rather than treating the switch as lossless.
추천
Automated Test Equipment
The DG417CY+ can serve as a precision routing element in automated test equipment where a measurement path must remain connected by default. Its single normally closed SPST channel provides a simple isolation point between the device under test and the measurement chain, while the 3 ohm maximum resistance matching improves consistency between repeated switching operations. The 8-pin NSOIC package permits compact routing close to the test fixture. Designers should verify the control voltage, bandwidth, charge injection, and switching-time requirements from the complete manufacturer data sheet before setting high-speed limits.
추천
Data-Acquisition Front Ends
The DG417CY+ is appropriate for a single-channel data-acquisition front end that needs a fail-safe or default-connected signal route. Operating from 4.5 V to 20 V single supply supports integration with modern mixed-signal equipment, while 10 V to 30 V dual-supply operation accommodates wider bipolar input ranges. The 35 ohm on-resistance can add signal loading, so source and input impedances should be included in the error budget. For systems requiring multiple simultaneous channels or faster multiplexing, a multichannel switch or dedicated multiplexer should be selected instead.
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Communication Interface Isolation
The DG417CY+ can isolate a communication or instrumentation line through a normally closed SPST connection, preventing unwanted coupling between connected and disconnected sections of a system. Its precision resistance matching and flatness help maintain signal integrity when the switch remains part of the active path. The 35 ohm on-resistance is acceptable for many control, status, and moderate-speed interfaces, but it may be too high for high-impedance or high-frequency nets. Engineers should calculate the insertion loss and confirm the control-logic levels against the full DG417 data sheet.
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Power and Control Signal Switching
The normally closed DG417CY+ is useful for control and power-management signal paths that should retain a default connection during reset or when the controller is unpowered. Because the verified operating range extends to 30 V total dual supply, the device can route selected control-domain signals, although the exact signal amplitude and current limits must be confirmed in the manufacturer data sheet. The 35 ohm on-resistance is not necessarily suitable for carrying substantial load current; this part is better treated as a precision analog or control switch than as a general power relay.
추천
Instrumentation Signal Conditioning
The DG417CY+ fits precision instrumentation front ends that require a compact, normally closed routing element for calibration, feedback, or transducer signals. The Analog Devices DG417 family specifies improved on-resistance matching of 3 ohm maximum and flatness of 4 ohm maximum, supporting repeatable behavior across the signal range. Its 8-pin NSOIC format keeps routing compact, while operation from 4.5 V to 20 V single supply supports integration into lower-voltage laboratory equipment. Verify leakage, charge injection, and switching transients against the source impedance when precision at the microvolt or millivolt level is required.
추천
추천 제품 요약
엔지니어링 참조 데이터: DG417CY+ — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | DG417CY+T | DG417CY | DG417DY+ | DG417DJ-E3 | MAX317ESA+ |
|---|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Maxim Integrated |
| Package | 8-pin NSOIC | 8-SOIC - same | 8-SOIC - same | 8-SOIC - same | 8-SOIC - same | 8-SOIC - same |
주요 차별점
- Normally closed default signal connection (vs A normally open SPST analog switch)
- Precision on-resistance matching (vs MAX317ESA+)
- Defined resistance flatness over the signal range (vs MAX317ESA+)
설계 노트
Confirm the normally closed behavior against the system requirement before layout. The verified DG417CY+ listing identifies an NC SPST configuration, so the signal path is closed in the inactive state. This is beneficial for fail-safe routing but incorrect for designs that require the default state to be open. Use the official DG417 data sheet for control-input logic and the complete pin configuration rather than inferring polarity from adjacent analog-switch families.
Include the 35 ohm on-resistance in the complete signal-path error budget rather than treating the switch as ideal. For a source impedance of Rs, the approximate divider loss from a single 35 ohm switch resistance is Rs/(Rs+35), before accounting for switch capacitance or downstream loading. The family's guaranteed 3 ohm maximum matching and 4 ohm maximum flatness help control variation, but cable, connector, and input-impedance losses still need separate analysis.
Place the DG417CY+ near the signal being routed and keep the switched trace short to reduce parasitic capacitance and susceptibility to pickup. Route the control input away from sensitive analog nets, provide local supply bypassing as specified in the manufacturer data sheet, and avoid long stubs on either side of the switch. The 8-pin NSOIC package is compact, but thermal performance and signal integrity still depend on the surrounding copper and return-path layout.
규정 준수 정보
RoHS compliance is stated by the verified Maxim-Electronics product listing. No verified REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations were supplied, so those values remain unknown.
