DG417DY+ - 35 Ohm SPST Analog Switch | Maxim Integrated
料号： DG417DY+ ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $3.56 | $3.56 |
| 10 | $3.56 | $35.60 |
| 100 | $3.56 | $356.00 |
| 500 | $3.56 | $1,780.00 |
| 1,000 | $3.56 | $3,560.00 |
DG417DY+ 概述
An analog switch is a semiconductor device that routes electrical signals between circuit nodes under digital control. The DG417 belongs to the broader interface-IC hierarchy: analog switch, CMOS analog switch, SPST switch, and signal-routing component. Its normally closed configuration means the selected signal path is conductive in the default power-down state, while the control input determines the switching state. This topology is useful when continuity must be maintained unless a separate control signal actively interrupts the path.
Verified family-level features include maximum on-resistance of 35 ohms, on-resistance matching up to 3 ohms between switches, on-resistance flatness up to 4 ohms over the signal range, charge injection up to 10 pC, off leakage below 5 nA at +85 degrees Celsius, and ESD withstand of at least 2000 V per Method 3015.7. The device also offers low power consumption and is designed to conduct equally well in either signal direction.
The DG417 family is specified for precision analog routing rather than high-voltage power switching. Its CMOS construction supports low leakage and compact integration, while controlled charge injection helps limit transient errors when the switch changes state. Exact supply range, control-logic levels, switch timing, and channel-specific pin behavior are not present in the supplied excerpts and are therefore not inferred here.
Typical uses include analog signal conditioning, test-equipment routing, instrumentation, communications equipment, and precision measurement paths. The switch can route a sensor, amplifier, or converter signal when system timing requires a normally closed connection. Designers should verify the complete datasheet limits for supply voltage, signal range, control thresholds, and absolute maximum ratings before finalizing a new design.
For PCB implementation, place the device close to the routed signal so trace capacitance and resistance remain low. Keep sensitive analog traces away from fast digital control lines, provide a stable ground reference, and account for injected charge at downstream amplifiers or sampling circuits. The 8-SOIC package is a surface-mount package suitable for conventional PCB assembly and hand or automated placement.
This page combines the verified manufacturer overview, distributor identification, and public comparison data with engineering guidance focused on signal integrity, switching behavior, and design validation. It intentionally distinguishes verified facts from parameters that require confirmation in the complete manufacturer datasheet.
直接替换替代料： DG417DY+ ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： DG417DY+ （相同外形与封装尺寸） ——差异在于 On-Resistance, On-Resistance Flatness, On-Resistance Matching, Package, Switch Configuration.
快速对比工具——选择替代料号进行并排对比：
DG417DY+T
✅ 直接替换📋 参考替代料（不在目录中）
DG417DY-E3
✅ 直接替换📋 参考替代料（不在目录中）
DG417DY-E3
✅ 直接替换📋 参考替代料（不在目录中）
DG417DY+T
✅ 直接替换📋 参考替代料（不在目录中）
DG417DY+ 最大额定值与电气特性
| Product Type | Precision CMOS monolithic analog switch |
| Switch Configuration | 1:1 SPST, normally closed |
| Number of Circuits | 1 circuit IC switch |
| On-Resistance | 35 ohm maximum |
| On-Resistance Matching | 3 ohm maximum between switches |
| On-Resistance Flatness | 4 ohm maximum over the signal range |
| Charge Injection | 10 pC maximum |
| Off-Leakage Current | Below 5 nA at +85 degrees Celsius |
| ESD Withstand | 2000 V minimum per Method 3015.7 |
| Signal Conduction Direction | Bidirectional |
| Power Consumption | Low power consumption; exact value not provided in verified excerpts |
| 封装 | 8-SOIC |
| 安装类型 | Surface mount |
| Switching Family | DG417 improved SPST/SPDT analog switches |
| Break-Before-Make | Applicable to DG417 family switching behavior; exact timing not provided in verified excerpts |
| Production Status | PRODUCTION |
| Manufacturer 1ku Starting Price | $3.56 as of 2026-10-23 |
DG417DY+ 8-soic 引脚配置指南
DG417DY+（8-soic 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： DG417DY+.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DG417DY+ 适用于 6 应用s: Precision Sensor Signal Routing, Test and Measurement Signal Paths, Industrial Control Signal Isolation, Communications and Interface Routing, Audio and Low-Level Analog Conditioning, Portable and Battery-Powered Equipment.
Precision Sensor Signal Routing
The DG417DY+ fits precision sensor routing when the system needs a normally closed path and controlled switching transients. Its verified family data specifies charge injection up to 10 pC and off leakage below 5 nA at +85°C, which helps preserve small signals between sensor conditioning stages. The 35-ohm maximum on-resistance is acceptable when the downstream input impedance is sufficiently high and the complete signal-path bandwidth is checked. Use the switch near the sensor or amplifier input, keep traces short, and verify that control transitions do not exceed the downstream device’s settling requirements. The 8-SOIC package is suitable for conventional surface-mount routing.
推荐
Test and Measurement Signal Paths
DG417DY+ is appropriate for test and measurement paths that route a precision analog node between an instrument and a fixture. Its normally closed SPST topology can preserve a connection during the default state, while the improved family specifications provide controlled on-resistance matching and flatness. The verified 35-ohm maximum resistance and low leakage are useful for high-impedance measurement front ends, but cable capacitance, source impedance, and settling time still determine usable bandwidth. Place the switch close to the protected analog node and keep the control trace away from sensitive inputs.
推荐
Industrial Control Signal Isolation
The DG417DY+ can route a control or feedback signal in industrial systems that require a defined default connection and low off leakage. Its 8-SOIC surface-mount package supports compact controller boards, while the family’s low power consumption is useful when multiple channels are present. The design must account for the switch’s control thresholds, supply voltage, signal range, and transient behavior, because those values are not included in the verified excerpts. Use a stable analog ground, provide local decoupling according to the complete datasheet, and validate operation across the required industrial temperature range.
推荐
Communications and Interface Routing
DG417DY+ is suitable for low-level analog routing in communications and interface equipment when bidirectional conduction and low leakage are important. The verified manufacturer description identifies equal conduction in either direction, while the analog switch topology can simplify clock, feedback, or auxiliary signal selection. On-resistance and injected charge should be included in the channel budget when driving a downstream amplifier or converter. Keep the routing trace short, use a continuous reference plane, and separate the control signal from sensitive analog nets to reduce coupling during state changes.
推荐
Audio and Low-Level Analog Conditioning
The DG417DY+ can be used for low-level analog conditioning where a normally closed signal path and controlled charge injection are useful. Family specifications of up to 10 pC charge injection and low off leakage help limit switching disturbances, although audio performance still depends on the surrounding amplifier, layout, and supply design. Place the switch on the signal side of the conditioning chain rather than sharing long high-impedance traces with digital control. Confirm the complete datasheet’s signal-range and supply limits before using the part with bipolar audio signals.
推荐
Portable and Battery-Powered Equipment
DG417DY+ is applicable to portable equipment when low power consumption and low leakage help preserve battery-powered signal paths. The verified family data supports low power consumption, while the 8-SOIC package provides a compact surface-mount implementation. The designer should still verify supply voltage, control-logic levels, leakage over temperature, and the switch’s effect on battery life. Avoid placing the analog switch where long PCB traces add capacitance or where an upstream regulator’s switching ripple is injected into the signal node. Use local decoupling and verify the default-state current path during power-down.
推荐
推荐产品汇总
工程参考数据： DG417DY+ ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | DG417DY+T | DG417DY-E3 |
|---|---|---|---|
| Package | 8-SOIC | 8-SOIC | 8-SOIC |
| Brand | Maxim Integrated | Maxim Integrated | Vishay Siliconix |
| Switch Configuration | 1:1 SPST, normally closed | 1:1 SPST | 1:1 SPST |
| Number of Circuits | 1 circuit | 1 circuit | 1 circuit |
| Maximum On-Resistance | 35 ohm | 35 ohm | 35 ohm |
关键差异点
- Identified as a single normally closed SPST precision switch （对比 DG417DY+T)
- 35 ohm maximum on-resistance with family precision specifications （对比 DG417DY-E3)
- Controlled leakage and switching transients for analog routing （对比 DG417DY-E3)
设计说明
Keep the analog signal trace short and place the DG417DY+ close to the source or destination being routed. The verified family specification permits up to 10 pC charge injection, so include switching transients in the settling budget for downstream amplifiers, ADCs, or sample-and-hold stages. A continuous ground reference and a separate return path for the control signal help prevent digital switching activity from coupling into the analog node.
Use the 8-SOIC footprint and follow the manufacturer’s land pattern for pad, solder-mask, and copper-clearance details. Place input and output routing away from high-current switching nodes and maintain consistent return paths under the analog terminals. Because the supplied excerpts do not include the complete pinout, verify pin functions and exposed routing requirements against the official datasheet before fabrication.
Do not select a replacement from package and on-resistance alone. Confirm supply voltage, control polarity, signal-range limits, switching time, leakage, charge injection, and absolute maximum ratings for DG417DY+T or DG417DY-E3. The verified distributor summaries establish shared 1:1, 35-ohm, 8-SOIC characteristics, but they do not establish every ordering-code or manufacturer-specific electrical difference.
合规信息
The supplied manufacturer and distributor excerpts do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields must be confirmed from current manufacturer documentation.
