My Inquiry
My Account
Vishay Siliconix DG309DY-T1
- Part No.:
- DG309DY-T1
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG309DY-T1.pdf
- Description:
- IC SWITCH SPST-NCX4 85OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,707
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DG309DY-T1 from Vishay Siliconix is a quad, normally closed (NC), CMOS analog switch in 16-pin narrow SOIC package, rated for ±22 V dual-supply operation, with 45 Ω typical on-resistance, <200 ns turn-on time, and 1 pC charge injection. It serves as a precision signal routing device in sample-and-hold circuits, programmable gain amplifiers, and test equipment front-ends.
For engineers reviewing the DG309DY-T1 datasheet, DG309DY-T1 pinout, DG309DY-T1 application, or DG309DY-T1 equivalent, key selection criteria include its NC logic behavior (ON at logic low), bi-directional analog conduction, ±22 V signal handling capability, low leakage (<20 pA), and TSSOP/SOIC package compatibility for space-constrained instrumentation designs.
Technical Context
The DG309DY-T1 implements four independent single-pole single-throw (SPST) switches with complementary control logic to the DG308B - each channel activates when its INx input is logic low (≤3.5 V), enabling true NC functionality. Its silicon-gate CMOS process delivers matched RDS(on) (±2 %), low temperature drift, and latchup immunity via epitaxial isolation.
It supports both dual-supply (±4 V to ±22 V) and single-supply (4 V to 44 V) operation, with guaranteed analog signal range of ±15 V under ±15 V supplies. Internal level-shifting circuitry ensures robust digital interface compatibility across supply rails without external translators.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15 V - supports full-rail bipolar signal switching without clipping in ±15 V systems |
| RDS(on) | 45 Ω typ. - enables <0.1 % gain error in 10 kΩ impedance paths at 1 mA |
| Charge Injection | 1 pC - limits voltage glitch to <1 mV on 1 nF hold capacitors in sample-and-hold |
| tON/tOFF | <200 ns / <150 ns - supports >2 MHz multiplexing in data acquisition systems |
| ID(off) | ±20 pA max. - ensures <1 µV offset drift over 10 MΩ feedback networks |
| Supply Range | ±4 V to ±22 V - accommodates industrial ±12 V, ±15 V, and extended-range sensor interfaces |
| Logic Thresholds | VINL ≤ 3.5 V, VINH ≥ 11 V - compatible with TTL and CMOS logic without level shifters |
Pinout & Package
Package: 16-pin narrow SOIC (JEDEC MS-012, body width 3.9 mm, pitch 1.27 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | IN1–IN4 | Active-low digital control inputs - logic low enables corresponding switch |
| 5, 6, 12, 13 | S1–S4 | Source terminals - bidirectional analog current path when switch is ON |
| 7, 8, 11, 10 | D1–D4 | Drain terminals - connected to Sx when INx = low; high-impedance when OFF |
| 9 | GND | Analog/digital reference - must be tied to system ground for proper logic and leakage control |
| 14 | V− | Negative supply rail - sets lower bound of analog signal range and bias for internal circuitry |
| 15 | V+ | Positive supply rail - sets upper bound of analog signal range and powers output stage |
| 16 | NC | No connect - internally unconnected; must remain floating or grounded per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Normally Closed (NC) Logic | Switches conduct when INx ≤ 3.5 V - simplifies fail-safe hold functions in power-loss scenarios |
| Bi-directional Analog Path | Zero-directionality bias - allows signal flow S→D or D→S with identical RDS(on) and leakage |
| Charge Injection Compensation | 1 pC typical - minimizes sampling pedestal error in precision ADC front-ends |
| ±22 V Absolute Max Rating | Withstands transient overvoltage up to 44 V between V+ and V− - enhances system-level surge resilience |
| Latchup Immunity | Epitaxial layer isolation - prevents destructive SCR triggering during signal overrange events |
Applications
| Programmable Gain Amplifier | Sample-and-Hold Circuit |
|---|---|
Use Scenario: Digitally selecting resistor networks to set amplifier gain (x1, x10, x100, x1000) in precision instrumentation. IC Role / Device Role / Timing Role: DG309DY-T1 acts as NC analog switch array routing feedback resistors; activated by low-going control lines synchronized to system clock edges. Use Value: Enables <0.01 % gain step accuracy due to 45 Ω RDS(on) matching and <20 pA leakage, minimizing offset drift across gain ranges. | Use Scenario: Capturing and holding analog sensor outputs (e.g., thermocouple, strain gauge) for digitization in data loggers. IC Role / Device Role / Timing Role: DG309DY-T1 serves as hold switch - closed during acquisition (logic low), opened on command to isolate capacitor from input source. Use Value: 1 pC charge injection limits aperture error to <1 mV on 1 nF hold capacitors, supporting 16-bit effective resolution. |
| Automated Test Equipment (ATE) | Communications Channel Switching |
Use Scenario: Multiplexing multiple DUT signals into shared measurement resources (oscilloscope inputs, DMM channels). IC Role / Device Role / Timing Role: DG309DY-T1 provides low-glitch, high-isolation (90 dB off-isolation) signal routing under microcontroller GPIO control. Use Value: <200 ns switching time enables >2 MHz channel scan rates; 95 dB crosstalk suppression prevents inter-channel interference. | Use Scenario: Selecting between redundant RF front-end paths or antenna feeds in base station transceivers. IC Role / Device Role / Timing Role: DG309DY-T1 functions as fail-safe signal gate - remains closed during control loss, preserving default signal path integrity. Use Value: ±22 V rating accommodates 18 V bias rails in GaAs FET driver stages; NC behavior ensures continuity during brownout conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4675ESE+ | Quad SPST, NC, 30 Ω RDS(on), ±20 V rating, 100 ns tON, SOIC-16 | Lower on-resistance but narrower supply range (±20 V vs. ±22 V); higher cost | Select for faster switching where ±2 V margin is acceptable |
| ADG1419BRUZ | Quad SPST, NC, 2.7 Ω RDS(on), ±15 V rating, 120 ns tON, TSSOP-16 | Superior RDS(on) and speed, but limited to ±15 V - unsuitable for extended-range industrial sensors | Select for low-distortion audio or high-precision DC-coupled paths within ±15 V constraints |
Compared with DG309DY-T1, MAX4675ESE+ offers faster switching and slightly lower RDS(on) but sacrifices 2 V of analog range headroom, while ADG1419BRUZ delivers ultra-low on-resistance ideal for high-fidelity signal chains but cannot support ±22 V operation required in ruggedized test equipment.
Availability
DG309DY-T1 is available at Aetrix Electronics and suitable for industrial instrumentation, automated test equipment, and communications systems requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for DG309DY-T1 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 semiconductor manufacturer specializing in discrete MOSFETs, diodes, optoelectronics, and analog switches, with emphasis on high-reliability, high-performance components for industrial and automotive markets.
The DG309DY-T1 belongs to Vishay's DG30xB series of improved quad analog switches, designed specifically for precision signal routing in environments demanding wide supply range, low distortion, and robust fault tolerance.
FAQ
What is the logic behavior of DG309DY-T1 compared to DG308DY-T1?
The DG309DY-T1 is a normally closed (NC) switch: each channel conducts when its INx input is logic low (≤3.5 V) and blocks when logic high (≥11 V). In contrast, DG308DY-T1 is normally open (NO), conducting only at logic high. This complementary behavior makes DG309DY-T1 ideal for fail-safe hold functions and default-path routing where continuity is required during control loss.
Can DG309DY-T1 operate from a single 12 V supply?
Yes, DG309DY-T1 supports single-supply operation from 4 V to 44 V. With V+ = 12 V and V− = 0 V, it delivers an analog signal range of 0 V to 12 V, RDS(on) of 90 Ω typical, and tON < 300 ns. The logic thresholds (VINL ≤ 3.5 V, VINH ≥ 11 V) remain valid, enabling direct interface with 3.3 V or 5 V microcontrollers using appropriate pull-up/pull-down networks.
What is the maximum analog signal voltage DG309DY-T1 can handle without damage?
DG309DY-T1 has an absolute maximum analog signal rating of (V−) − 2 V to (V+) + 2 V. When operated at ±15 V supplies, it safely handles analog signals from −17 V to +17 V. Exceeding these limits risks forward-biasing internal clamping diodes; sustained current above 30 mA may cause permanent damage. For ±22 V supplies, the safe analog range extends to −24 V to +24 V.
How does DG309DY-T1 achieve low charge injection of 1 pC?
DG309DY-T1 uses an improved charge injection compensation design in its silicon-gate CMOS process, balancing parasitic capacitances at the switch node and actively canceling injected charge during transitions. This is verified under CL = 1000 pF, Vg = 0 V, Rg = 0 Ω test conditions and directly enables sub-millivolt sampling accuracy in precision sample-and-hold circuits using the DG309DY-T1.
Is DG309DY-T1 pin-compatible with older DG309 variants like DG309BDJ?
Yes, DG309DY-T1 shares identical pinout and electrical specifications with all DG309B-series devices including DG309BDJ, DG309BDQ, and DG309BDY variants. The "DY" suffix denotes narrow SOIC packaging, "T1" indicates tape-and-reel packaging, and "B" confirms the improved DG309B revision - all maintain full functional and mechanical compatibility with legacy DG309 footprints and layouts.
DG309DY-T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 85Ohm
- Channel-to-Channel Matching (ΔRon):
- 1.7Ohm
- Voltage - Supply, Single (V+):
- 4V ~ 44V
- Voltage - Supply, Dual (V±):
- ±4V ~ 22V
- Switch Time (Ton, Toff) (Max):
- 200ns, 150ns
- -3db Bandwidth:
- -
- Charge Injection:
- 1pC
- Channel Capacitance (CS(off), CD(off)):
- 5pF, 5pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -95dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG309DY-T1 FAQ
1.How can I place an order for DG309DY-T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG309DY-T1 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 DG309DY-T1 reliable?
The price and inventory of DG309DY-T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG309DY-T1 is usually 5 days.
3.What payment methods are accepted for DG309DY-T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG309DY-T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG309DY-T1?
DG309DY-T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG309DY-T1 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 DG309DY-T1?
For technical support, including DG309DY-T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG309DY-T1 requirements.
6.How does Aetrix verify that DG309DY-T1 is sourced from the original manufacturer or authorized distributors?
All DG309DY-T1 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 DG309DY-T1 meets industry standards.
7.What is the process for return or replacement of DG309DY-T1?
All DG309DY-T1 units undergo pre-shipment inspection (PSI). If there is an issue with DG309DY-T1, 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 DG309DY-T1 part is unused and in its original packaging.
Return procedure for DG309DY-T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DG309DY-T1 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 …
