DG412DJ-E3 - Quad SPST CMOS Analog Switch 35Ohm | Vishay
MPN: DG412DJ-E3 ✓ Hoạt độngDG412DJ-E3 Tóm tắt
An analog switch is a semiconductor device that routes or blocks analog signal paths under digital control, acting like a relay but with far higher speed, lower power, and smaller size. Within the signal-routing hierarchy, the analog switch sits below analog multiplexers (which select among many channels) and above transmission gates, forming a fundamental building block of the broader analog front-end and signal-conditioning IC family. The DG412 provides four normally-closed SPST switches, while its DG411 and DG413 family siblings provide normally-open and mixed configurations.
Key features include low on-resistance (35 ohm max), extremely low power consumption of 0.35 uW, TTL and CMOS compatible digital inputs, and fast switching of precision analog signals. The monolithic CMOS construction ensures matched switch characteristics and low charge injection, preserving signal integrity in precision measurement paths.
Architecturally, each channel is a CMOS transmission-gate switch driven by a level-shifting logic interface, allowing digital control signals referenced to logic supplies to switch analog signals riding on dual ±15V rails. This is the classic precision switch topology inherited from the DG211/DG212 generations; per the manufacturer documentation, the DG411 series is a drop-in replacement for DG211/DG212 devices.
Typical applications include sample-and-hold circuits, precision integrators and peak detectors, audio and instrumentation signal routing, and test-equipment channel switching, where quad SPST control with low error switching is required.
A key design consideration: with 35 ohm on-resistance, ensure downstream load impedances remain high (100x switch resistance or more) to limit gain error, and always observe the ±13.5V to ±16.5V supply range with appropriate supply decoupling.
This page synthesizes verified distributor listings, cross-reference data, drop-in alternative analysis, and practical design notes not found in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho DG412DJ-E3 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với DG412DJ-E3 (cùng hình factor và footprint) — khác nhau ở Package, RoHS Status.
DG412DJ
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
DG413DJ-E3
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DG411DJ-E3
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
DG441DJ-E3
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADG412BNZ
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
DG412DJ-E3 Tỷ lệ tối đa & tính chất điện
| Product Type | Quad SPST CMOS Analog Switch |
| Number of Channels | 4 |
| Switch Configuration | 4 x SPST, 1:1 |
| On-Resistance (Max) | 35 ohm |
| Supply Voltage Range | ±13.5 V to ±16.5 V |
| Power Consumption | 0.35 uW |
| Digital Input Compatibility | TTL and CMOS compatible |
| Switch Polarity | Normally closed (DG412 configuration) |
| Hộp | PDIP-16 |
| Số lượng chân | 16 |
| Kiểu lắp đặt | Through Hole |
| Series | DG411/DG412/DG413 (DG412D) |
| Trạng thái RoHS | RoHS Compliant |
| Lead Free Status | Lead Free |
| Technology | CMOS, monolithic |
Hướng dẫn cấu hình chân DG412DJ-E3 pdip-16
Cấu hình chân cho DG412DJ-E3 (pdip-16 gói). IC số này bao gồm chân GPIO, giao diện truyền thông (UART, SPI, I2C) và chân nguồn. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết các chức năng chân thay thế và tùy chọn cấu hình. Cực kỳ quan trọng cho thiết kế hệ thống tích hợp và lập trình PCB.
Không có dữ liệu chân cụ thể sẵn có cho DG412DJ-E3.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
DG412DJ-E3 phù hợp cho 6 Áp dụngs: Sample-and-Hold Circuits, Precision Integrators and Peak Detectors, Instrumentation Signal Routing, Test and Measurement Equipment, Audio Signal Switching, Industrial Control and Legacy System Maintenance.
Sample-and-Hold Circuits
The DG412DJ-E3's 35 ohm maximum on-resistance allows rapid charging of a hold capacitor during the acquisition window, while its 0.35 uW static power consumption keeps self-heating - and therefore hold-capacitor leakage drift - to an absolute minimum. In a classic sample-and-hold front end, the switch sits between the buffer amplifier output and the hold capacitor, driven by a TTL-compatible control pulse from the ADC timing logic. Because the CMOS switch passes signals rail-to-rail within the ±15V supplies, the full analog headroom is preserved. The normally-closed DG412 polarity suits architectures that hold by default and sample on command. Designers should size the hold capacitor so the RC product (35 ohm × C_hold) meets acquisition-time targets, typically achieving sub-microsecond acquisition with 1 nF.
Được đề xuất
Precision Integrators and Peak Detectors
Reset switches in precision integrators demand low leakage and low charge injection - exactly what the DG412DJ-E3 delivers with its monolithic CMOS construction and 0.35 uW power draw. In a resettable integrator, the switch bridges the integrating capacitor; on command it discharges the capacitor to establish a known initial condition. The 35 ohm on-resistance yields a fast reset time constant with practical capacitor values, and the ±15V operation accommodates wide analog swing around ground. Because the four switches are matched on one die, multi-channel integrator banks share consistent reset behavior, simplifying calibration. Layout should minimize trace leakage at the summing node and guard the reset switch terminals to preserve droop performance over temperature.
Được đề xuất
Instrumentation Signal Routing
Bench instruments and data-acquisition systems frequently need to switch precision analog signals between gain stages, filters, or measurement channels. The DG412DJ-E3 provides four independently controlled SPST paths with TTL/CMOS-compatible control, letting a microcontroller or FPGA sequence connections without level-shifting circuitry. Its ±13.5V to ±16.5V supply range matches standard ±15V instrumentation rails, so the switch handles signals anywhere in the analog front-end span. At 35 ohm on-resistance the insertion loss into high-impedance (megaohm) measurement nodes is negligible, keeping calibration error small. The through-hole PDIP-16 package also suits prototyping, repair, and legacy instrument maintenance where surface-mount devices are impractical.
Được đề xuất
Test and Measurement Equipment
Switch matrices in oscilloscope input stages, curve tracers, and automated test fixtures rely on fast, low-error analog switches. The DG412DJ-E3 switches precision signals at high speed with low charge injection, preserving waveform fidelity when rerouting channels. Its four SPST channels allow independent per-channel control, and the robust ±15V operation tolerates the higher signal swings typical of bench instruments. The 0.35 uW quiescent power keeps the switch self-heating negligible, avoiding thermal offsets in DC-accurate measurements. Because the DG411 series is documented as a drop-in replacement for the DG211/DG212 generation, service engineers can modernize aging test equipment boards without PCB redesign, simply by populating the same DIP-16 socket with the DG412DJ-E3.
Được đề xuất
Audio Signal Switching
Professional audio equipment operating on ±15V rails uses the DG412DJ-E3 to mute, route, or select balanced audio signals without mechanical relays. The CMOS switch's 35 ohm on-resistance is negligible relative to typical audio load impedances (10 kohm and above), contributing less than 0.05 dB insertion loss. Wide ±15V signal swing supports professional +24 dBu headroom, and fast switching with TTL-compatible control enables click-free changeover when combined with appropriate mute sequencing. The 0.35 uW static power draw adds no thermal noise contribution to adjacent low-level stages. Four independent channels in one 16-pin DIP package reduce component count in console channel strips and patch-routing cards, and the through-hole format suits serviceable studio hardware.
Được đề xuất
Industrial Control and Legacy System Maintenance
Industrial systems built on the ±15V analog standard - PLC analog cards, process-control loops, and 4-20 mA front ends - use the DG412DJ-E3 for calibration multiplexing and signal-path isolation. The device's guaranteed operation from ±13.5V to ±16.5V tolerates industrial supply variation, and its TTL/CMOS logic inputs interface directly with PLC digital outputs through simple buffering. Because the part remains active and stocked at Mouser and DigiKey as of 2026-09-14, maintenance engineers can source through-hole replacements for decades-old boards, and the DG411 series' documented drop-in compatibility with DG211/DG212 sockets extends this service path to even older equipment. The RoHS-compliant -E3 finish also satisfies modern environmental directives during system refurbishment.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho DG412DJ-E3 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | DG412DJ | DG413DJ-E3 | DG411DJ-E3 | DG441DJ-E3 | ADG412BNZ |
|---|---|---|---|---|---|---|
| Package | PDIP-16 | PDIP-16 - same | PDIP-16 - same | PDIP-16 - same | PDIP-16 - same | PDIP-16 - same |
| Brand | Vishay Intertechnology | Vishay Intertechnology | Vishay Intertechnology | Vishay Intertechnology | Vishay Intertechnology | Analog Devices |
| Number of Channels | 4 x SPST | 4 x SPST | 4 x SPST (2 NO + 2 NC) | 4 x SPST (NO) | 4 x SPST | 4 x SPST |
| Switch Polarity | Normally closed | Normally closed | Mixed (2 NO / 2 NC) | Normally open | Normally closed | Normally closed |
Bảo phân biệt quan trọng
- RoHS-compliant lead-free version of a legacy through-hole switch (vsDG412DJ)
- Ultra-low 0.35 uW power consumption (vsADG412BNZ)
- Normally-closed quad configuration on the DG411-family die (vsDG411DJ-E3)
Ghi chú thiết kế
With 35 ohm maximum on-resistance, the DG412DJ-E3 introduces a gain error of RON / (RON + RLOAD). Keep the load impedance at 100 kohm or higher so the error stays below 0.04%. For precision integrator or sample-and-hold duty, place the switch as close as possible to the summing node or hold capacitor, guard the switch terminals with a driven guard ring to suppress board leakage, and select a low-leakage (polypropylene or C0G) hold capacitor. Verify the charge-injection specification against the hold-capacitor size in the Vishay DG411 series datasheet before committing to an accuracy budget.
The DG412DJ-E3 is specified for dual supplies from ±13.5V to ±16.5V and is intended for standard ±15V analog systems. Do not attempt single-supply operation below 27V total, because on-resistance, switching times, and logic thresholds are only guaranteed within the stated dual-rail window. Decouple V+ and V- with 0.1 uF ceramic capacitors placed within 10 mm of the pins, and return all digital ground currents to a clean analog ground. The 0.35 uW static consumption makes self-heating negligible, but transient charge current during switching still requires low-impedance decoupling to prevent rail bounce coupling into adjacent channels.
A frequent mistake is substituting the DG411 (normally-open) or DG413 (mixed polarity) for the normally-closed DG412 without updating the logic truth table - the three family members share the same PDIP-16 footprint but invert or split the control logic, so firmware or schematic polarity must be verified. Also note the -E3 suffix is required for RoHS/lead-free builds; the plain DG412DJ is a tin-lead device. Finally, because the through-hole DIP-16 has relatively high parasitic inductance, keep switching speeds and trace lengths modest in high-frequency signal paths.
Thông tin tuân thủ
Distributor specification data states Lead Free Status: Lead Free; RoHS Status: RoHS Compliant. REACH, halogen-free, and conflict-minerals status not stated in provided data.
