DG408CY+ - 8:1 CMOS Analog Multiplexer, 16-SOIC | Maxim Integrated
Артикул: DG408CY+ ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $8.83 | $8,83 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1.000 | $0 | $0,00 |
DG408CY+ Обзор
What is an analog multiplexer? An analog multiplexer is an analog switch that connects one common terminal to one of several input terminals. The DG408CY+ belongs to the CMOS analog switch and multiplexer hierarchy, where CMOS circuitry controls low-resistance, bidirectional signal paths. In a typical system, address logic selects a sensor, voltage source, or measurement channel, while the common terminal routes that signal to an ADC, amplifier, or signal-processing circuit. The DG408 can also be used as a demultiplexer when the design requires distributing a signal toward multiple destinations.
Key verified features include guaranteed channel matching of 8Ω maximum, on-resistance flatness of 9Ω maximum, maximum on-resistance of 100Ω, and maximum charge injection of 15pC. Input off-leakage is specified below 5nA at 85°C. The device uses TTL/CMOS-compatible digital input control and includes ESD protection exceeding 2000V according to the listed product information. Its 16-pin narrow SOIC package supports conventional surface-mount assembly while keeping the analog signal routing compact.
The improved DG408CY+ design emphasizes repeatable channel behavior across the specified signal range. This matters when multiple measurements are compared in instrumentation, automated test equipment, or data-acquisition systems because channel mismatch can create systematic measurement error. Its bidirectional conduction also allows the common signal path to be used according to the system architecture, although external protection and input-voltage limits must be respected.
Typical uses include switching analog inputs into an ADC, selecting external sensors, routing test signals, implementing sample-and-hold front ends, and controlling laboratory or industrial measurement equipment. For high-impedance sources, leakage and off-state behavior can be important; for low-impedance signals, on-resistance and charge injection deserve attention. The DG408CY+ is therefore most appropriate when a compact, multiplexed analog-routing solution is needed with verified low-leakage and controlled charge-injection behavior.
When laying out the circuit, keep analog traces short and route control signals away from sensitive analog nodes. Confirm that supply voltage, logic levels, input voltage range, and switch-cycle timing meet the device requirements before use. This page consolidates distributor information, verified datasheet features, package details, and design guidance for engineers evaluating the DG408CY+.
Аналоги без доработки для DG408CY+ — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
DG408CY
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
DG408DYZ
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
DG408DJZ
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
DG408EUE+
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
DG408DY
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
DG408CY+ Характеристики
| Product Type | 8-channel CMOS analog multiplexer |
| Configuration | Single 8:1 multiplexer |
| On-Resistance | 100Ω maximum |
| Channel Matching | 8Ω maximum |
| On-Resistance Flatness | 9Ω maximum |
| Charge Injection | 15pC maximum |
| Input Off-Leakage | 5nA maximum at 85°C |
| Power Consumption | 1.25mW maximum |
| Signal Handling | Rail-to-rail |
| Digital Input Compatibility | TTL/CMOS compatible |
| ESD Protection | Greater than 2000V |
| Корпус | 16-SOIC narrow |
| Package Width | 3.90mm |
| Package Length | 0.154 inch |
| Количество выводов | 16 pins |
| Тип монтажа | Surface mount |
| Signal Conduction | Bidirectional |
| Enable Function | ENABLE input for device selection |
Руководство по цоколевке DG408CY+ в корпусе 0.154 inch
Цоколевка для DG408CY+ (корпус 0.154 inch). Нумерация выводов, функции и схемы подключения определены в техническом описании производителя. Обратитесь к нему для точного посадочного места и рекомендаций по пайке.
Нет подробных данных о распиновке для DG408CY+.
Обратитесь к даташиту для полной конфигурации выводов.
Типичное применение
DG408CY+ подходит для 6 применениеs: Multichannel Data Acquisition, Sensor Signal Selection, Automated Test Equipment, Laboratory Signal Routing, Battery-Powered Monitoring, Industrial Control Signal Multiplexing.
Multichannel Data Acquisition
DG408CY+ fits a data-acquisition front end when eight analog inputs must share one downstream ADC channel. Its 100Ω maximum on-resistance, 8Ω maximum channel matching, and 9Ω maximum flatness help reduce channel-to-channel variation as the mux selects sensor, divider, or instrumentation outputs. Rail-to-rail signal handling supports a wide analog range, although source impedance, ADC acquisition time, and settling after switching must be checked. TTL/CMOS-compatible controls simplify connection to a microcontroller or test controller. The 16-pin narrow SOIC package keeps routing compact while permitting conventional surface-mount assembly. In a precision design, allow the 15pC maximum charge injection to settle before sampling, especially when driving a high-impedance node.
Рекомендуется
Sensor Signal Selection
DG408CY+ is appropriate for selecting among temperature, pressure, bridge, or resistive sensor outputs when a shared amplifier or ADC must serve multiple sensing channels. Its low input off-leakage, listed below 5nA at 85°C, helps limit errors from inactive channels when sensors and bias networks present high impedance. The 100Ω maximum on-resistance is acceptable for many sensor-conditioning paths, but engineers should verify divider impedance, bandwidth, and input capacitance. The device can operate as a bidirectional analog switch, enabling flexible routing around the sensor network. Place the selected sensor trace close to the mux and keep digital address traces away from the high-impedance analog node to minimize coupling and leakage effects.
Рекомендуется
Automated Test Equipment
DG408CY+ supports automated test equipment where one controller must route several test points, excitation sources, or return signals into a common measurement chain. The guaranteed channel matching of 8Ω maximum and on-resistance flatness of 9Ω maximum are useful when comparing channels or maintaining repeatable test conditions. TTL/CMOS-compatible address and enable inputs simplify integration with digital test-control logic, while the 16-pin narrow SOIC package is compatible with conventional PCB assembly. Timing and settling must be designed around the 15pC maximum charge injection and the resistance of the selected path. External clamping may be appropriate when switching external cables or long fixtures, because the mux specifications alone do not establish protection for every external transient condition.
Рекомендуется
Laboratory Signal Routing
DG408CY+ can route laboratory sources, attenuator outputs, or external sensor inputs into a common amplifier and measurement instrument. Its rail-to-rail signal-handling claim makes it useful for systems that need analog routing across a broad voltage range, subject to the device's detailed operating limits. The 100Ω maximum on-resistance is generally compatible with low-impedance instrument paths, while the 5nA maximum off-leakage at 85°C helps preserve high-impedance measurements. In a laboratory design, identify the signal direction, provide a defined return path, and ensure the selected source can tolerate the mux's switching transients. Digital control lines should remain short and properly buffered to prevent address transitions from disturbing sensitive analog measurements.
Рекомендуется
Battery-Powered Monitoring
DG408CY+ is suitable for low-power monitoring systems that need to share a single analog measurement path among multiple battery or environmental sensors. Its listed maximum power consumption of 1.25mW helps limit the burden introduced by the multiplexer, although the complete supply-current behavior must be confirmed for the selected operating mode. The low leakage specification supports high-impedance sensor biasing, while the 100Ω maximum on-resistance and 9Ω maximum flatness help maintain consistent signal transfer. In a battery-powered design, account for the mux's control logic, pull resistors, ADC leakage, and sensor bias current in the overall power budget. Use the enable function to disable device selection when the system does not require channel access, subject to the manufacturer's logic and timing requirements.
Рекомендуется
Industrial Control Signal Multiplexing
DG408CY+ can route multiple analog control or monitoring signals in industrial equipment when TTL/CMOS-compatible address control is desirable. The device's rail-to-rail handling, bidirectional conduction, and 16-pin narrow SOIC package provide a compact way to share a downstream amplifier, comparator, or ADC. Channel matching of 8Ω maximum is relevant when several inputs are compared in diagnostics, while flatness of 9Ω maximum supports repeatable signal transfer across the specified range. Industrial environments require attention to grounding, shielding, ESD, and transient protection; the verified ESD protection value is greater than 2000V, but external protection may still be needed for cables and long wiring. Confirm supply tolerances and logic thresholds before production release.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для DG408CY+ — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | DG408CY | DG408DYZ | DG408DJZ | DG408EUE+ | DG408DY |
|---|---|---|---|---|---|---|
| Brand | Maxim Integrated | Maxim Integrated | Renesas Electronics | Renesas Electronics | Maxim Integrated | Maxim Integrated |
| Multiplexer Configuration | Single 8:1 | 8:1 multiplexer | 8:1 multiplexer | 8:1 multiplexer | 8:1 multiplexer | 8:1 multiplexer |
Ключевые отличия
- Improved channel matching (против DG408CY)
- Controlled charge injection (против DG408DYZ)
- Improved on-resistance flatness (против DG408DY)
Заметки по проектированию
Route the common analog node and selected channel traces as short, direct paths, and place input protection or conditioning components close to the relevant pins. Keep the three digital control inputs and ENABLE routing away from high-impedance analog traces. Because the verified package is SOIC-Narrow-16, use the official land pattern rather than a generic SOIC footprint; the supplied data does not provide a complete pinout mapping.
Allow the downstream circuit to settle after each channel transition before taking an acquisition sample. The verified charge-injection value is 15pC maximum, which can produce a transient at a high-impedance node. Use a sufficiently low source impedance and an acquisition window compatible with the ADC sample-and-hold behavior. The 100Ω maximum on-resistance and 9Ω maximum flatness should be included in the signal-chain error budget rather than treated as ideal switch behavior.
Do not substitute a related DG408 part based only on the 8:1 and 100Ω descriptions. Confirm the exact ordering code, narrow SOIC footprint, pin numbering, supply limits, control-input polarity, ENABLE behavior, and analog operating range against the manufacturer datasheet. The supplied cross-reference data includes related DG408-family candidates, but it does not independently certify every candidate as a direct drop-in replacement.
Информация о соответствии
The supplied verified data does not provide explicit RoHS, REACH, lead-free, halogen-free, or conflict-minerals statements. The product is an interface IC and is not identified as an automotive-qualified AEC-Q100 part.
