DG407DN+ - Dual 8:1 CMOS Analog Multiplexer | Analog Devices
料号： DG407DN+ ✓ 量产中DG407DN+ 概述
An analog multiplexer is a semiconductor switching network that routes one of several analog inputs to a shared output according to binary address and enable signals. In the signal-chain hierarchy, the DG407DN+ is a CMOS analog switch IC, a precision signal-routing component, and part of a broader data-acquisition or communication system. The 28-pin PLCC provides a standardized leaded surface-mount footprint suitable for compact industrial, instrumentation, and embedded-control equipment.
The manufacturer describes DG407 as an improved 16-channel or dual 8-channel CMOS analog multiplexer family. Verified distributor information identifies DG407DN+ as a two-circuit 8:1 switch with 100-ohm maximum on-state resistance in a 28-pin PLCC measuring 11.51 mm by 11.51 mm. Its TTL- and CMOS-compatible digital decode circuitry allows the address and enable inputs to operate with common logic families, while the enable function can deselect the mux when it is not required.
The DG407 family includes sixteen analog switches, a binary channel-selection decoder, a voltage reference for logic thresholds, and an enable input for device selection. This integrated addressing arrangement reduces the number of external control components required in multiplexed analog systems. The Analog Devices product page also identifies the DG406 and DG407 devices as pin-compatible plug-in upgrades for the industry-standard DG506A and DG507A families, supporting design migration without changing the board footprint.
Typical uses include selecting among multiple sensors in a data-acquisition system, routing audio signals between functional blocks, multiplexing instrumentation channels, and directing control signals in communication equipment. Because the mux contains two 8:1 sections, adjacent channel pairs can also be combined as differential or paired selections where the system architecture requires it. The principal design trade-off is the 100-ohm maximum on-state resistance, which can introduce signal attenuation and distortion compared with lower-resistance switching networks.
PCB designers should keep analog traces short and provide a stable ground reference beneath the PLCC while separating sensitive inputs from switching or digital return currents. Power and ground connections should be decoupled close to the device, and unused digital inputs should be driven to a defined logic level rather than left floating. The manufacturer datasheet should be consulted for the exact pin assignments, truth table, control timing, electrical limits, and recommended operating conditions before layout or firmware is released.
This product record combines verified manufacturer and distributor information, package and pricing references, pin-compatible alternatives, application guidance, and practical selection considerations. It is intended to support sourcing and engineering evaluation while preserving explicit markers wherever the supplied source material does not expose a verified parameter.
直接替换替代料： DG407DN+ ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
DG407DN+T
✅ 直接替换📋 参考替代料（不在目录中）
DG407DN
✅ 直接替换📋 参考替代料（不在目录中）
DG407DN-T1-E3
✅ 直接替换📋 参考替代料（不在目录中）
DG407DN+ 规格参数
| Multiplexer Configuration | Dual 8:1 |
| Number of Circuits | 2 circuits |
| Maximum On-State Resistance | 100 ohm |
| Internal Analog Switch Array | 16 switches |
| Channel-Selection Logic | TTL- and CMOS-compatible |
| 封装 | 28-pin PLCC, 11.51 mm x 11.51 mm |
| 安装类型 | Surface mount |
| Logic Threshold Reference | Internal voltage reference |
| Device Enable | Enable input for device selection |
| RoHS 状态 | unknown |
| REACH Status | unknown |
| AEC-Q100 Qualification | unknown |
DG407DN+ 28-pin plcc, 11.51 mm x 11.51 mm 引脚配置指南
DG407DN+（28-pin plcc, 11.51 mm x 11.51 mm 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： DG407DN+.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DG407DN+ 适用于 7 应用s: Data Acquisition Systems, Audio Signal Routing, Communication Systems, Guidance and Control Systems, Sample-and-Hold Circuits, Test and Measurement Equipment, Industrial Sensor Multiplexing.
Data Acquisition Systems
The DG407DN+ fits data-acquisition front ends because its two independent 8:1 sections can route sixteen analog inputs to two common outputs, reducing the number of external switches in a multichannel measurement system. Its TTL- and CMOS-compatible address logic can be controlled directly by common embedded processors or acquisition controllers. The manufacturer specifically identifies data-acquisition systems as an application for the DG407 family. The 100-ohm maximum on-state resistance must be included in the source-impedance and settling-time budget, especially when sensors have high output impedance. Keep selected analog traces short, provide a quiet ground reference, and place bypass capacitance close to the device to limit supply disturbance during channel transitions.
推荐
Audio Signal Routing
The DG407DN+ can route multiple audio or low-frequency control signals through its dual 8:1 analog sections, making it suitable for compact signal-selection and distribution assemblies. The manufacturer lists audio signal routing as a DG407 application, and the integrated binary decoder simplifies channel management. Because the maximum on-state resistance is 100 ohm, impedance matching and amplifier input loading require attention: a high-gain audio stage can produce measurable level loss when driven through this resistance. Use short, shielded routing where appropriate, maintain a low-impedance reference return, and validate harmonic distortion and channel-to-channel matching in the final analog path.
推荐
Communication Systems
The DG407DN+ is appropriate for communication equipment that must select among several low-frequency or baseband analog channels using a common control interface. Two 8:1 sections provide sixteen switch positions across two outputs, while TTL- and CMOS-compatible control inputs permit operation with different logic families. The manufacturer identifies communication systems as a key DG407 application. Designers should account for the 100-ohm maximum on-state resistance in receiver sensitivity and insertion-loss calculations and should keep the mux away from switching-current paths that could couple noise into the selected channel. Validate control timing against the datasheet truth table and provide defined levels to unused address or enable inputs.
推荐
Guidance and Control Systems
The DG407DN+ can consolidate multiple control or feedback signals onto shared analog lines in guidance, industrial, and embedded-control systems. Its dual 8:1 organization allows two groups of sensors or outputs to be selected independently, reducing wiring and connector count. The enable input supports placing the device in a disabled state between measurements, while the internal logic-threshold reference supports compatible TTL and CMOS control systems. The primary engineering concern is signal integrity: account for the 100-ohm maximum channel resistance when calculating divider ratios, settling time, and actuator drive requirements. Confirm all 28 PLCC connections and logic states against the official datasheet before fabrication.
推荐
Sample-and-Hold Circuits
The DG407DN+ supports sample-and-hold systems by selecting different source signals for a shared sampling and measurement path. The Analog Devices manufacturer page lists sample-and-hold circuits among the DG407 applications, reflecting the device's role as a controlled analog switch array rather than a standalone amplifier. Two mux sections can serve related or differential sampling functions, but the exact source and destination terminals must follow the device truth table. The maximum 100-ohm on-state resistance should be included in the acquisition settling calculation, and the selected signal should have sufficient drive capability. Use a quiet reference plane and place any local hold capacitor where its switching transients cannot disturb adjacent channels.
推荐
Test and Measurement Equipment
The DG407DN+ is suitable for test equipment that must route multiple input channels to a shared measuring circuit under digital control. Its two 8:1 sections allow two measurement groups to share a common architecture, while the enable function can isolate the mux when it is not being sampled. The manufacturer lists test equipment as a DG407 application. For precision instruments, include the 100-ohm maximum on-state resistance in the input noise, gain error, and settling analysis, and verify input bias-current interaction with the selected channel. A compact 28-pin PLCC supports equipment designs where a larger through-hole package would be undesirable, provided the board outline and solder process are qualified.
推荐
Industrial Sensor Multiplexing
The DG407DN+ can reduce analog wiring in industrial sensor hubs by selecting up to eight inputs for each of two outputs. This is particularly useful when temperature, pressure, and discrete line-monitor signals share an acquisition controller but arrive at different impedance levels. Its TTL- and CMOS-compatible decoder supports integration with embedded logic, and the enable input can control participation in a measurement cycle. The 100-ohm maximum on-state resistance is acceptable for many slowly sampled industrial sensors but can degrade accuracy with high-impedance dividers or long cable networks. Keep input filtering near the source, maintain a continuous ground path, and verify settling behavior over the intended temperature range.
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推荐产品汇总
工程参考数据： DG407DN+ ——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 | DG407DN+T | DG407DN | DG407DN-T1-E3 |
|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Vishay Intertechnology | Analog Devices |
| Package | 28-PLCC (11.51 mm x 11.51 mm) | 28-PLCC (11.51 mm x 11.51 mm) | 28-PLCC (11.51 mm x 11.51 mm) | 28-PLCC (11.51 mm x 11.51 mm) |
| Multiplexer Configuration | Dual 8:1 | Dual 8:1 | Dual 8:1 | Dual 8:1 |
| Number of Circuits | 2 circuits | 2 circuits | 2 circuits | 2 circuits |
| Maximum On-State Resistance | 100 ohm | 100 ohm | 100 ohm | 100 ohm |
| Digital Control Compatibility | TTL- and CMOS-compatible | TTL- and CMOS-compatible | TTL- and CMOS-compatible | TTL- and CMOS-compatible |
| Enable Function | Enable input for device selection | Enable input for device selection | Enable input for device selection | Enable input for device selection |
关键差异点
- Direct match for an existing DG407DN+ board footprint （对比 DG407DN+T)
- Cross-brand sourcing option with the same functional class （对比 DG407DN)
- Integrated dual multiplexing reduces external routing （对比 ADG407BPZ)
设计说明
Include the maximum 100-ohm on-state resistance in the complete source-to-receiver transfer function. Together with the selected sensor or network output impedance, it forms a voltage divider, and together with input capacitance it can add an RC settling pole. For a high-impedance source, buffer the source before multiplexing or select a lower-resistance switching device. Validate settling using the datasheet switching-time and capacitance limits rather than relying only on nominal logic timing.
Route each selected analog channel as a short, continuous trace from the source toward the common output, with its return path on a quiet ground reference. Avoid sharing narrow analog traces with digital clocks, relay coils, or switching-regulator currents. Place the PLCC on the board so exposed or plated package features do not interfere with the intended land pattern, and confirm whether unused analog pins require termination. The exact PLCC footprint and pin names must be taken from the current manufacturer package drawing.
Do not assume that similar DG407 ordering codes are automatically interchangeable. DG407DN+T and DG407DN-T1-E3 can differ in termination, grade, or packaging notation, while the Vishay DG407DN sourcing can reflect different qualification or lifecycle terms. Compare the manufacturer part number, package marking, electrical characteristics, temperature range, and lifecycle status line by line. Also drive unused digital control inputs to a defined level; floating address or enable pins can produce indeterminate channel selection.
合规信息
The supplied manufacturer and distributor excerpts do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. Compliance must be confirmed for the exact ordering code through current manufacturer documentation.
