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Vishay Siliconix DG429DN-E3
- Part No.:
- DG429DN-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 20-LCC (J-Lead)
- Datasheet:
-
DG429DN-E3.pdf
- Description:
- IC SWITCH SP4T X 2 100OHM 20PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:4,556
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Product details
Overview
DG429DN-E3 from Vishay Siliconix is a latchable differential 4-channel analog multiplexer IC designed for precision signal routing in microprocessor-controlled data acquisition systems. It features 55 Ω on-resistance, 1 pC charge injection, 160 ns transition time, TTL-compatible control inputs, and operates from ±15 V dual supplies or 12 V single supply - enabling high-accuracy switching in avionics and test equipment.
For engineers reviewing the DG429DN-E3 datasheet, DG429DN-E3 pinout, DG429DN-E3 application, or DG429DN-E3 equivalent, this device delivers verified break-before-make switching, on-board address latches for bus interfacing, low leakage (±50 nA off-state), rail-to-rail analog signal handling (±15 V), and PLCC-20 packaging suitable for high-density industrial PCB layouts.
Technical Context
The DG429DN-E3 integrates silicon-gate CMOS switches with parallel n- and p-channel MOSFETs, level-shifting circuitry, and D-type address latches synchronized by WR and RS control signals. Its architecture supports transparent latch operation when WR is low and holds channel selection after WR goes high, eliminating need for continuous bus addressing.
Break-before-make timing (tOPEN ≤ 10 ns) prevents momentary crosstalk between differential channels S1a/S1b through S4a/S4b. The EN pin enables stacking of multiple devices, while internal +5 V logic reference ensures TTL compatibility across -40 °C to +85 °C without external level shifters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance | 55 Ω typical at ±10 V - ensures minimal signal attenuation and gain error in precision measurement paths |
| Charge Injection | 1 pC - limits voltage glitch on sampled-hold capacitors, critical for ADC front-end accuracy |
| Transition Time | 160 ns - supports >3 MHz multiplexed sampling rates in automated test equipment |
| Analog Signal Range | ±15 V (dual supply) or 0–12 V (single supply) - accommodates industrial sensor outputs and legacy instrumentation rails |
| Off-Leakage Current | ±50 nA max at ±10 V - preserves integrity of high-impedance sources like thermocouples and pH electrodes |
| Supply Voltage Range | ±44 V absolute max - provides robust overvoltage tolerance during system transients or miswiring |
| Logic Compatibility | TTL input thresholds (0.8 V low / 2.4 V high) - interfaces directly with 5 V microcontrollers and FPGAs without buffers |
Pinout & Package
DG429DN-E3 uses a 20-pin plastic leaded chip carrier (PLCC) package with J-lead configuration, 0.050″ pitch, and 0.385″ × 0.395″ body size per Vishay Doc. 71266. Pin 1 marked via corner notch; leads are gull-wing shaped for surface-mount reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | Differential Input Pairs (S1a–S4a) | Positive-side terminals of four differential analog input channels; bidirectional conduction path |
| 10, 11, 12, 13, 14, 15, 16, 17 | Differential Input Pairs (S1b–S4b) | Negative-side terminals matched to corresponding Sxa pins; maintains common-mode rejection |
| 9 | GND | Logic ground reference for TTL-compatible control inputs and internal latches |
| 18 | V− | Negative analog supply rail; defines lower bound of switch conduction range |
| 19 | V+ | Positive analog supply rail; defines upper bound of switch conduction range |
| 20 | EN | Enable input controlling latch activation; low disables address capture, high allows WR-triggered updates |
| A0, A1 (Pins 12 & 13 per functional diagram) | Address Inputs | Binary-coded channel select lines (00–11) determining which differential pair connects to output |
| WR (Pin 11) | Write Control | Edge-triggered latch strobe: rising edge captures A0/A1 state to select channel |
| RS (Pin 10) | Reset Control | Active-high master reset clearing all latches and forcing all switches into OFF state |
Key Features
| Feature | Design Value |
|---|---|
| On-board TTL-compatible address latches | Eliminates external latch ICs and reduces board space in microprocessor-bus systems like ATE and data loggers |
| Break-before-make switching | Guarantees ≥30 ns tOPEN isolation between channels to prevent signal coupling during channel transitions |
| Rail-to-rail analog signal handling | Supports full ±15 V differential input range without clipping, enabling direct interface with op-amp outputs and sensor bridges |
| Low power consumption | 0.3 mW typical quiescent power - extends battery life in portable medical instrumentation and field-deployed sensors |
| ESD-protected logic inputs | Integrated input protection on A0, A1, EN, WR, RS minimizes susceptibility to handling damage and system-level transients |
Applications
| Data Acquisition Systems | Automatic Test Equipment (ATE) |
|---|---|
Use Scenario: Multiplexing multiple thermocouple or strain gauge inputs into a single high-resolution ADC channel. IC Role / Device Role / Timing Role: Differential analog multiplexer routing matched-pair sensor signals while rejecting common-mode noise. Use Value: 1 pC charge injection and ±50 nA off-leakage preserve µV-level signal integrity across 16-bit ADC conversions. |
Use Scenario: Switching calibration references and DUT signals in semiconductor parametric testers. IC Role / Device Role / Timing Role: High-speed, low-crosstalk channel selector enabling <1 µs test sequence turnaround. Use Value: 160 ns tTRANS and break-before-make action ensure accurate settling before measurement sampling. |
| Avionics Signal Conditioning | Medical Instrumentation |
Use Scenario: Routing redundant flight control sensor outputs (e.g., airspeed, altitude) to monitoring units. IC Role / Device Role / Timing Role: Fault-tolerant differential switch supporting fail-safe channel selection under EMI stress. Use Value: ±44 V absolute max rating and latch retention during power glitches meet DO-160 Section 22 surge requirements. |
Use Scenario: Selecting EEG/ECG electrode pairs in multi-channel patient monitors. IC Role / Device Role / Timing Role: Low-leakage, low-noise analog switch preserving biopotential signal fidelity. Use Value: 55 Ω RDS(on) match (≤5%) and rail-to-rail operation maintain consistent gain across all 4 differential channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar differential analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4692EAP+ (Maxim Integrated) | Higher on-resistance (75 Ω), no on-chip latches, requires external address decoding | Better suited for FPGA-controlled systems where latch logic resides in programmable fabric | Select when system already implements latch logic and prioritizes lower cost over board space savings |
| ADG409BRUZ (Analog Devices) | Identical 4-diff-channel function but lacks on-board latches; requires external 74HC373 or similar | Preferred in designs using SPI/I²C digital isolators where control timing is managed externally | Choose when migrating from legacy ADG409-based designs and external latch resources are available |
Compared with DG429DN-E3, MAX4692EAP+ trades integrated latching for higher RDS(on), while ADG409BRUZ matches core switching performance but shifts latch responsibility to external logic - making DG429DN-E3 optimal for minimizing component count in microprocessor-bus architectures.
Availability
DG429DN-E3 is available at Aetrix Electronics and suitable for data acquisition systems, automatic test equipment, avionics signal conditioning, and medical instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DG429DN-E3 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay Siliconix is a global leader in discrete semiconductors and passive components, specializing in high-reliability analog switching, power management, and sensing solutions for industrial, automotive, and aerospace markets.
The DG429DN-E3 belongs to Vishay's DG4xx series of latchable analog multiplexers, engineered specifically for microprocessor-bus interfacing in high-precision, noise-sensitive measurement systems where reduced component count and deterministic timing are critical.
FAQ
What is the operating temperature range for DG429DN-E3?
DG429DN-E3 is rated for -40 °C to +85 °C ambient operation, matching the "D" suffix specification in Vishay Document 70063. This range covers industrial and commercial environments including factory automation controllers and portable test instruments. The PLCC-20 package's thermal resistance (θJA) supports full-rated performance without forced airflow, and derating begins above 75 °C per datasheet Note e.
Does DG429DN-E3 support single-supply operation?
Yes, DG429DN-E3 supports single-supply operation with V+ = 12 V and V− = 0 V, delivering full 0–12 V analog signal range and maintaining 80 Ω typical RDS(on). Logic inputs remain TTL-compatible, and all timing parameters (e.g., tTRANS = 160 ns) are validated under this condition. This mode simplifies power design in battery-powered medical devices and embedded DAQ modules.
How does the enable (EN) pin function in DG429DN-E3?
In DG429DN-E3, the EN pin controls whether address latches respond to WR pulses: when EN is high, WR edges update channel selection; when EN is low, latches ignore WR and retain prior state. This allows stacking multiple DG429DN-E3 devices - one EN line per device - enabling larger multiplexer arrays without bus contention, as confirmed in the Truth Table and Applications Hints section of Document 70063.
What is the maximum analog signal voltage DG429DN-E3 can handle?
DG429DN-E3 supports analog signals from V− to V+, with absolute maximum ratings up to ±44 V referenced to V−. Under standard ±15 V operation, it reliably passes ±15 V differential signals. Exceeding V+ or V− clamps via internal diodes - forward current must be limited to ≤30 mA per datasheet Absolute Maximum Ratings table - making it suitable for ruggedized industrial I/O modules.
Is DG429DN-E3 RoHS compliant and halogen-free?
Yes, DG429DN-E3 complies with RoHS Directive 2002/95/EC and is halogen-free per IEC 61249-2-21, as explicitly stated in the Features section of Vishay Document 70063. The "-E3" suffix denotes Vishay's standard lead-free, halogen-free PLCC packaging, qualified for lead-free reflow profiles and compatible with IPC-J-STD-020 moisture sensitivity level 3 handling.
DG429DN-E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Last Time Buy
- Switch Circuit:
- SP4T
- Multiplexer/Demultiplexer Circuit:
- 4:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 100Ohm
- Channel-to-Channel Matching (ΔRon):
- 5Ohm
- Voltage - Supply, Single (V+):
- 12V
- Voltage - Supply, Dual (V±):
- ±15V
- Switch Time (Ton, Toff) (Max):
- 150ns, 150ns
- -3db Bandwidth:
- -
- Charge Injection:
- 1pC
- Channel Capacitance (CS(off), CD(off)):
- 11pF, 20pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-PLCC (9x9)
DG429DN-E3 FAQ
1.How can I place an order for DG429DN-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG429DN-E3 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DG429DN-E3 reliable?
The price and inventory of DG429DN-E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG429DN-E3 is usually 5 days.
3.What payment methods are accepted for DG429DN-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG429DN-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG429DN-E3?
DG429DN-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG429DN-E3 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DG429DN-E3?
For technical support, including DG429DN-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG429DN-E3 requirements.
6.How does Aetrix verify that DG429DN-E3 is sourced from the original manufacturer or authorized distributors?
All DG429DN-E3 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DG429DN-E3 meets industry standards.
7.What is the process for return or replacement of DG429DN-E3?
All DG429DN-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG429DN-E3, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DG429DN-E3 part is unused and in its original packaging.
Return procedure for DG429DN-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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