DG441DYZ - Quad SPST CMOS Analog Switch, 85Ω, 16-SOIC | Renesas
料号： DG441DYZ ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $3.14 | $3.14 |
| 10 | $2.83 | $28.30 |
| 100 | $2.45 | $245.00 |
| 500 | $2.12 | $1,060.00 |
| 1,000 | $1.85 | $1,850.00 |
| 3,000 | $1.62 | $4,860.00 |
DG441DYZ 概述
An analog switch (also called a CMOS transmission gate or bilateral switch) is a solid-state device that uses MOSFET transistors to pass or block analog and digital signals with very low distortion. The DG441DYZ belongs to the SPST switch family, which functions like a mechanical relay but with faster switching speed, no contact bounce, low power consumption, and bounce-free operation. It sits inside the broader analog switch IC category, alongside multiplexers (MUX), demultiplexers (DEMUX), and cross-point switches, all of which are sub-categories of interface ICs used for signal routing in mixed-signal systems.
Key features include 85Ω typical on-resistance, 250 ns turn-on time (tON), a -3 dB bandwidth of approximately 200 MHz, and sub-nanoamp leakage currents. The switch architecture uses a high-voltage silicon-gate CMOS process with an epitaxial layer that prevents latch-up, a reliability concern common to older CMOS analog switches. Each switch exhibits low charge injection, making the part suitable for sample-and-hold circuits and precision multiplexed data-acquisition front-ends.
The DG441DYZ is widely deployed in industrial process control, instrumentation, automatic test equipment (ATE), battery-powered telemetry, communication systems, and audio/video signal routing. Its wide supply range, low on-resistance flatness across the signal range, and TTL-compatible logic make it a versatile replacement for electromechanical relays where reliability, size, and switching speed are design constraints. The 16-SOIC (0.154" / 3.90 mm body width) package is pin-compatible with legacy DG201A/DG202 SOIC footprints, allowing direct PCB drop-in upgrades.
When designing with the DG441DYZ, observe absolute maximum signal ratings of 44V across the switch and ensure logic inputs do not exceed V+ plus 0.3V. For low-impedance sources, account for the 85Ω on-resistance and its flatness over the analog signal range; for high-impedance loads, the dominant error source is leakage rather than Ron. Always decouple the supply pins with a 0.1 µF ceramic capacitor placed as close to the device as possible to minimize digital-induced noise coupling into the analog path.
This page consolidates distributor pricing, AEC-Q-free drop-in alternatives, and PCB-level design notes that extend beyond the Renesas datasheet's typical application circuits to help engineers choose the right analog switch family for production.
直接替换替代料： DG441DYZ ——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： DG441DYZ （相同外形与封装尺寸） ——差异在于 Package, RoHS Status, Charge Injection, Logic Input Compatibility, Number of Channels.
快速对比工具——选择替代料号进行并排对比：
DG441DY
✅ 直接替换📋 参考替代料（不在目录中）
DG442DY
✅ 直接替换📋 参考替代料（不在目录中）
DG441DYZ-T
✅ 直接替换📋 参考替代料（不在目录中）
DG441DYZA
✅ 直接替换📋 参考替代料（不在目录中）
DG441DY
✅ 直接替换📋 参考替代料（不在目录中）
ADG1219BRJZ-REEL7
✅ 直接替换✓ 有现货
$2.52 / 个
查看数据手册 →ADG1206YCPZ-REEL7
✅ 直接替换✓ 有现货
$12.14 / 个
查看数据手册 →DG441DYZ 最大额定值与电气特性
| Switch Type | SPST (Single-Pole Single-Throw), 4 independent channels |
| Number of Circuits | 4 |
| On-Resistance (Ron) | 85 Ω (typical) |
| Supply Voltage (Single) | +5 V to +34 V |
| Supply Voltage (Dual) | ±5 V to ±22 V |
| Maximum Signal Voltage | 44 V (allows 40 Vp-p signals) |
| Turn-On Time (tON) | 250 ns (typical) |
| Bandwidth (-3 dB) | 200 MHz (typical) |
| Logic Input Compatibility | TTL and CMOS, with on-chip Vref threshold translator |
| 工作温度 | -40 °C to +85 °C |
| 封装 | 16-SOIC (0.154" / 3.90 mm width) |
| 安装类型 | Surface Mount |
| Latch-up Protection | Yes (epitaxial CMOS process) |
| RoHS 状态 | Compliant (per Heisener listing) |
DG441DYZ 引脚配置
| 引脚 1 | IN1 — Logic input for switch 1 (TTL/CMOS, on-chip Vref threshold) |
| 引脚 2 | D1 — Drain (analog) of switch 1 |
| 引脚 3 | S1 — Source (analog) of switch 1 |
| 引脚 4 | V- — Negative supply voltage |
| 引脚 5 | GND — Logic ground (Vref reference) |
| 引脚 6 | S4 — Source (analog) of switch 4 |
| 引脚 7 | D4 — Drain (analog) of switch 4 |
| 引脚 8 | IN4 — Logic input for switch 4 |
| 引脚 9 | V+ — Positive supply voltage |
| 引脚 10 | IN3 — Logic input for switch 3 |
| 引脚 11 | S3 — Source (analog) of switch 3 |
| 引脚 12 | D3 — Drain (analog) of switch 3 |
| 引脚 13 | D2 — Drain (analog) of switch 2 |
| 引脚 14 | S2 — Source (analog) of switch 2 |
| 引脚 15 | IN2 — Logic input for switch 2 |
| 引脚 16 | NC — Not connected (per datasheet) |
典型应用
DG441DYZ 适用于 6 应用s: Industrial Process Control Signal Routing, Automatic Test Equipment (ATE) Pin Switching, Battery-Powered Telemetry and Portable Instrumentation, Audio/Video Signal Routing and Switching, Sample-and-Hold and Multiplexed Data Acquisition Front-Ends, Communication Systems and Modem Line Interface.
Industrial Process Control Signal Routing
The DG441DYZ is well-suited to industrial process-control I/O where signals from thermocouples, pressure transducers, and 4-20 mA loops must be multiplexed into a single ADC. Its 44 V maximum signal and ±22 V dual-supply rails directly accommodate ±15 V industrial signal chains without external level shifting. The 85 Ω on-resistance is low enough to keep insertion loss below the error budget of 16-bit ADCs, while the on-chip TTL/CMOS logic threshold translator accepts 3.3 V or 5 V microcontroller GPIO without additional drivers. Engineers typically place the part between sensor conditioning op-amps and the ADC input, with 0.1 µF decoupling on V+ and V-. Compared to electromechanical relays, the DG441DYZ delivers sub-microsecond switching and bounce-free operation, eliminating settling-time delays in scan cycles.
推荐
Automatic Test Equipment (ATE) Pin Switching
In ATE pin-electronics boards, the DG441DYZ routes stimulus and measurement signals between the tester channel and the device-under-test (DUT). The 200 MHz -3 dB bandwidth preserves edge fidelity on pulse patterns up to several megahertz, while 85 Ω on-resistance is sufficiently low that it does not dominate the 50 Ω source-impedance match typical in ATE fixtures. The four independent SPST switches allow per-pin connect/disconnect of power, ground, and signal lines. The on-chip Vref translator lets the device accept 3.3 V or 5 V control logic from the tester's sequencer FPGA. A typical design places the DG441DYZ between the DUT socket and the per-channel instrumentation amplifier, with bulk and decoupling capacitors on each supply pin to handle fast transient switching.
推荐
Battery-Powered Telemetry and Portable Instrumentation
The DG441DYZ is a strong fit for battery-powered telemetry and handheld instrumentation where low quiescent current and small PCB area are priorities. Its CMOS construction draws minimal supply current, and the 16-SOIC footprint fits comfortably in compact handheld layouts. Engineers use the device to switch between multiple sensor inputs - for example, ECG leads, temperature probes, and respiration belts - into a single low-power ADC. The wide single-supply range (+5 V to +34 V) supports both lithium-ion packs and industrial 24 V bus-powered designs without level shifters. Sub-nanoamp off-leakage preserves battery life during long standby windows when the switch is disabled.
推荐
Audio/Video Signal Routing and Switching
In consumer and prosumer audio/video equipment, the DG441DYZ provides clickless signal routing for line-level audio paths and composite video multiplexing. The 200 MHz bandwidth easily passes composite video (typically <6 MHz) and balanced audio (20 Hz to 20 kHz) without measurable attenuation. The 85 Ω on-resistance is well below the source impedance of typical line drivers, so insertion loss is negligible. Designers use the part to switch between CD, AUX, and Bluetooth input sources, or to multiplex video between HDMI companion chips. Decoupling with 0.1 µF ceramics and a guarded ground plane keeps digital switching transients out of the analog path.
推荐
Sample-and-Hold and Multiplexed Data Acquisition Front-Ends
The DG441DYZ functions as a low-leakage sample-and-hold element or as the front-end multiplexer in data-acquisition boards. Its low charge injection minimizes the voltage droop that would otherwise corrupt the held sample when the switch opens. The four SPST channels allow a 4-to-1 multiplexer topology by wiring each switch's drain to a common node, with the source serving as the per-channel input. At 85 Ω Ron, the RC settling time with a typical 1 nS hold capacitance is in the tens of nanoseconds - acceptable for moderate-speed scanning ADCs. The part is pin-compatible with the legacy DG201A footprint, enabling direct PCB upgrades in existing data-acq designs.
推荐
Communication Systems and Modem Line Interface
In telecom and modem line-interface circuits, the DG441DYZ routes signals between codec, line driver, and test-loopback paths. The 44 V signal range accommodates the high transient voltages common on telecom lines, while ±22 V dual supplies match the bipolar signal swings used in analog line interfaces. The 250 ns turn-on time is fast enough for line-monitor switching and ring-trip detection. The on-chip TTL/CMOS threshold translator accepts logic from DSP or microcontroller control buses without external drivers. Designers typically pair the part with isolation transformers and protection diodes to build a complete line interface.
推荐
推荐产品汇总
工程参考数据： DG441DYZ ——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 | DG441DY | DG442DY | DG441DYZ-T | DG441DYZA | Vishay DG441DY |
|---|---|---|---|---|---|---|
| Package | 16-SOIC (0.154", 3.90 mm) | 16-SOIC - same | 16-SOIC - same | 16-SOIC - same | 16-SOIC - same | 16-SOIC - same |
| Brand | Renesas Electronics | Renesas Electronics - same | Renesas Electronics - same | Renesas Electronics - same | Renesas Electronics - same | Vishay Intertechnology |
| Switch Type | 4x SPST (Normally Open) | 4x SPST NO - same | 4x SPST NC | 4x SPST NO - same | 4x SPST NO - same | 4x SPST NO - same |
| On-Resistance (Ron) | 85 Ω typical | 85 Ω - same | 85 Ω - same | 85 Ω - same | 85 Ω - same | 85 Ω - same |
| Turn-On Time (tON) | 250 ns typical | 250 ns - same | 250 ns - same | 250 ns - same | 250 ns - same | 250 ns - same |
| Supply Voltage (Single) | +5 V to +34 V | +5 V to +34 V - same | +5 V to +34 V - same | +5 V to +34 V - same | +5 V to +34 V - same | +5 V to +34 V - same |
| Maximum Signal Voltage | 44 V (40 Vp-p) | 44 V - same | 44 V - same | 44 V - same | 44 V - same | 44 V - same |
| Bandwidth (-3 dB) | 200 MHz | 200 MHz - same | 200 MHz - same | 200 MHz - same | 200 MHz - same | 200 MHz - same |
| Logic Compatibility | TTL/CMOS with Vref translator | TTL/CMOS - same | TTL/CMOS - same | TTL/CMOS - same | TTL/CMOS - same | TTL/CMOS - same |
| Packaging Format | Tube | Tube | Tube | Tape & Reel | Tube | Tube / T&R |
关键差异点
- On-chip Vref logic threshold translator （对比 Legacy DG201A)
- Epitaxial CMOS latch-up protection （对比 ADG1219BRJZ-REEL7)
- Drop-in 16-SOIC upgrade for DG201A/DG202 （对比 Vishay DG441DY)
- Wide ±22 V dual-supply operation （对比 ADG1206YCPZ-REEL7)
设计说明
Place a 0.1 µF ceramic decoupling capacitor as close as possible to the V+ pin (pin 9) and a 1 µF to 10 µF bulk capacitor on the supply trace. Connect V- (pin 4) to a clean analog ground plane and GND (pin 5) to the logic ground. Per the Renesas datasheet, inadequate decoupling can cause logic-induced transients to couple into the analog signal path, degrading on-resistance flatness and increasing total harmonic distortion in audio applications.
The DG441DYZ sources and drains are bidirectional - either terminal can act as input or output. However, when used as a multiplexer (e.g., 4-to-1), wire the drains together and use each source as the per-channel input to take advantage of identical switch timing. Keep analog traces short and guarded by ground pours to minimize channel-to-channel crosstalk, which is significant above 10 MHz.
Do not exceed the absolute maximum signal voltage of 44 V across any source/drain pair, including during power-supply ramp-up when input signals may be present before V+ stabilizes. Logic input voltages above V+ + 0.3 V or below V- - 0.3 V can forward-bias the input protection diodes and inject current into the analog path. For high-impedance loads (above 100 kΩ), account for off-leakage rather than Ron as the dominant error source.
Estimated: at V+ = +15 V, V- = -15 V, and 10 mA continuous current through each switch, on-resistance of 85 Ω dissipates approximately 8.5 mW per channel (P = I² × R = 0.01² × 85). With four switches conducting, total power is 34 mW, well within the SOIC-16 thermal envelope (θJA ~ 100 °C/W). No heatsink is required; standard PCB copper pour is sufficient.
合规信息
RoHS compliance per Heisener listing (2026-10-07). Not AEC-Q100 qualified - the part targets industrial/consumer, not automotive. Halogen-free status not explicitly stated in provided data.
