My Inquiry
My Account
Vishay Siliconix DG445DY-T1-E3
- Part No.:
- DG445DY-T1-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG445DY-T1-E3.pdf
- Description:
- IC SWITCH SPST-NOX4 85OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:7,823
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DG445DY-T1-E3 from Vishay Siliconix is a quad SPST normally open (NO) CMOS analog switch IC designed for precision signal routing in instrumentation and data acquisition systems. It delivers 50 Ω on-resistance, 120 ns typical turn-on time at ±15 V, and ±15 V analog signal range under dual-supply operation - enabling high-fidelity switching in sample-and-hold and telecom interface circuits.
For engineers reviewing the DG445DY-T1-E3 datasheet, DG445DY-T1-E3 pinout, DG445DY-T1-E3 application, or DG445DY-T1-E3 equivalent, key selection criteria include its NO configuration versus DG444's NC function, low 80 pA off-leakage, TTL/CMOS logic compatibility, and SOIC-16 narrow-body package suitability for space-constrained mixed-signal PCBs.
Technical Context
The DG445DY-T1-E3 implements four independent bidirectional analog switches using Vishay's high-voltage silicon-gate process, with epitaxial layer latchup protection. Each channel supports rail-to-rail analog signals up to ±15 V (dual supply) or 0–12 V (single supply), and features matched on-resistance and low charge injection (−1 pC) critical for precision sampling.
Control logic accepts standard TTL/CMOS voltage thresholds (≤0.8 V for low, ≥2.4 V for high), with digital inputs referenced to VL (logic supply). The device operates across −40 °C to +85 °C and maintains <100 Ω max RDS(on) over full temperature and supply range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch type | Quad SPST, normally open - enables default-open signal paths for fail-safe routing |
| On-resistance | 50 Ω typ. at ±15 V - ensures minimal signal attenuation and gain error in precision amplifiers |
| Turn-on time | 120 ns typ. at ±15 V - supports >1 MHz switching rates in automated test equipment |
| Off-leakage current | ±0.01 nA typ. at ±15.5 V - preserves accuracy in high-impedance sample-and-hold hold capacitors |
| Analog range | ±15 V (dual), 0–12 V (single) - accommodates industrial sensor outputs and audio line-level signals |
| Charge injection | −1 pC typ. - limits pedestal error to <10 µV on 1 nF hold capacitors |
| Supply range | Single: +5 V to +36 V; Dual: ±5 V to ±20 V - allows flexible integration into legacy and modern power domains |
Pinout & Package
Package: 16-pin narrow-body SOIC (JEDEC MS-012, 3.9 mm width), RoHS-compliant, tape-and-reel (T1-E3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 | Digital control inputs | Active-high TTL/CMOS-compatible logic; INx = high → corresponding switch closes |
| S1–S4 | Source terminals | Bidirectional analog inputs/outputs; conduct equally in both directions when on |
| D1–D4 | Drain terminals | Bidirectional analog inputs/outputs; paired with Sx to form SPST switch path |
| V+ | Positive analog supply | Bias for internal switch transistors; sets upper analog rail (e.g., +15 V) |
| V− | Negative analog supply | Bias for internal switch transistors; sets lower analog rail (e.g., −15 V) |
| GND | Analog ground reference | Return path for analog signals; separate from digital logic ground |
| VL | Logic supply voltage | Reference for INx thresholds; typically +5 V, independent of V+/V− |
Key Features
| Feature | Design Value |
|---|---|
| No latchup design | Epitaxial isolation layer prevents destructive latchup under overvoltage or ESD stress |
| Low distortion routing | 50 Ω RDS(on) matching and <100 dB off-isolation minimize crosstalk in multi-channel DAQ |
| Ultra-low power control | 22 nW typical quiescent power enables battery operation in portable medical sensors |
| DG211/DG212 socket upgrade | PIN-compatible replacement with improved speed, leakage, and voltage range |
| Rail-to-rail analog handling | Supports input signals extending to V+ and V− rails without clamping or distortion |
Applications
| Audio Switching | Data Acquisition |
|---|---|
Use Scenario: Routing line-level stereo signals between multiple codecs and output jacks in professional audio mixers. IC Role / Device Role / Timing Role: Quad SPST NO switch providing isolated channel selection with <100 dB crosstalk suppression. Use Value: Prevents audible pop/click during switching via low charge injection (−1 pC) and matched RDS(on). | Use Scenario: Multiplexing sensor outputs (thermocouples, strain gauges) into a single ADC channel in industrial PLC modules. IC Role / Device Role / Timing Role: Precision analog multiplexer with 80 pA off-leakage preserving microvolt-level signal integrity. Use Value: Enables 16-bit+ effective resolution by minimizing hold capacitor discharge between samples. |
| Sample-and-Hold Circuits | Telecommunication Systems |
Use Scenario: Capturing fast transient waveforms in oscilloscope front-ends using a 1 nF hold capacitor. IC Role / Device Role / Timing Role: Low-charge-injection analog switch controlling acquisition phase timing with 120 ns tON. Use Value: Limits pedestal error to <10 µV, maintaining DC accuracy after sampling. | Use Scenario: Signal path selection in T1/E1 line interface units for telecom base station backplanes. IC Role / Device Role / Timing Role: High-voltage analog switch supporting ±12 V signaling standards with 44 V V+–V− rating. Use Value: Survives line surges and meets GR-1089 immunity requirements without external protection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG445BRZ | Higher 75 Ω RDS(on), 150 ns tON, same SOIC-16 package and NO function | Lower bandwidth suitability; less ideal for >1 MHz sampling | Prefer DG445DY-T1-E3 for tighter on-resistance matching and faster switching |
| MAX4617ESE+ | Lower 35 Ω RDS(on), but only ±15 V max supply; no single-supply operation above 12 V | Limited to dual-supply designs; incompatible with 24 V single-rail industrial systems | Choose DG445DY-T1-E3 for wider supply flexibility (5–36 V single, ±5–±20 V dual) |
Compared with ADG445BRZ and MAX4617ESE+, the DG445DY-T1-E3 offers superior supply voltage versatility, lower leakage, and better thermal stability of RDS(on) - making it optimal for wide-temperature industrial DAQ and telecom infrastructure where long-term calibration drift must be minimized.
Availability
DG445DY-T1-E3 is available at Aetrix Electronics and suitable for audio switching, data acquisition, and sample-and-hold circuits requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.
Supply support for DG445DY-T1-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.
The DG445DY-T1-E3 belongs to Vishay's precision analog switch product line, engineered for instrumentation-grade signal integrity, low-power operation, and robustness in harsh electrical environments.
FAQ
What is the maximum analog signal voltage supported by DG445DY-T1-E3?
The DG445DY-T1-E3 supports analog signals from V− to V+, with absolute maximum V+ to V− rating of 44 V. Under dual-supply operation, it handles ±15 V signals (−15 V to +15 V range); under single-supply, it supports 0 V to +12 V. Exceeding these ranges risks clamping by internal diodes or permanent damage.
Is DG445DY-T1-E3 pin-compatible with DG444DY-T1-E3?
Yes, DG445DY-T1-E3 is pin-compatible with DG444DY-T1-E3 - both use identical SOIC-16 narrow-body packaging and share identical pin assignments. The only functional difference is switch state: DG445 is normally open (NO), while DG444 is normally closed (NC). No PCB layout change is required for substitution.
Does DG445DY-T1-E3 require a separate logic supply (VL)?
Yes, DG445DY-T1-E3 requires a dedicated VL supply (typically +5 V) to set TTL/CMOS logic thresholds for IN1–IN4. VL is electrically isolated from V+ and V−, allowing independent logic voltage scaling - essential for interfacing with 3.3 V microcontrollers while operating analog sections at ±15 V.
What is the typical charge injection value for DG445DY-T1-E3, and why does it matter?
The DG445DY-T1-E3 has a typical charge injection of −1 pC, measured with CL = 1 nF and zero source voltage. This low value minimizes pedestal error in sample-and-hold circuits - for example, inducing <10 µV error on a 1 nF hold capacitor - directly preserving DC accuracy and settling performance in precision measurement systems.
Can DG445DY-T1-E3 operate from a single +24 V supply?
Yes, DG445DY-T1-E3 supports single-supply operation from +5 V to +36 V. At +24 V, it maintains full functionality with analog signal range of 0 V to +24 V, RDS(on) ≤ 200 Ω (max), and tON ≤ 450 ns - making it suitable for industrial control I/O modules where only positive rail is available.
DG445DY-T1-E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 85Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 5V ~ 36V
- Voltage - Supply, Dual (V±):
- ±5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 250ns, 210ns
- -3db Bandwidth:
- -
- Charge Injection:
- -1pC
- Channel Capacitance (CS(off), CD(off)):
- 4pF, 4pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -100dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG445DY-T1-E3 FAQ
1.How can I place an order for DG445DY-T1-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG445DY-T1-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 DG445DY-T1-E3 reliable?
The price and inventory of DG445DY-T1-E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG445DY-T1-E3 is usually 5 days.
3.What payment methods are accepted for DG445DY-T1-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG445DY-T1-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG445DY-T1-E3?
DG445DY-T1-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG445DY-T1-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 DG445DY-T1-E3?
For technical support, including DG445DY-T1-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG445DY-T1-E3 requirements.
6.How does Aetrix verify that DG445DY-T1-E3 is sourced from the original manufacturer or authorized distributors?
All DG445DY-T1-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 DG445DY-T1-E3 meets industry standards.
7.What is the process for return or replacement of DG445DY-T1-E3?
All DG445DY-T1-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG445DY-T1-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 DG445DY-T1-E3 part is unused and in its original packaging.
Return procedure for DG445DY-T1-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DG445DY-T1-E3 Tags
-
SN74LVC1G3157DBVR
Texas Instruments
-
SN74LVC1G66DBVR
Texas Instruments
-
SN74LVC1G66DCKR
Texas Instruments
-
SN74LVC1G3157DSFR
Texas Instruments
-
1P1G3157QDCKRQ1
Texas Instruments
-
SN74LVC2G66DCUR
Texas Instruments
-
SN74LV4052APWR
Texas Instruments
-
74HC4051D,653
Nexperia USA Inc.
-
SN74LV4051APWR
Texas Instruments
-
CD74HC4052PWR
Texas Instruments
-
CD74HC4051PWR
Texas Instruments
-
TS5A3166DBVR
Texas Instruments
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
