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Vishay Siliconix DG509BEQ-T1-E3
- Part No.:
- DG509BEQ-T1-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
DG509BEQ-T1-E3.pdf
- Description:
- IC SWITCH SP4TX2 380OHM 16TSSOP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
DG509BEQ-T1-E3 from Vishay Siliconix is a dual 4-channel differential CMOS analog multiplexer designed to route one of four differential input pairs (S1a/S1b through S4a/S4b) to a common dual output (Da/Db) under 2-bit binary address control (A0, A1), with break-before-make switching and TTL-compatible enable (EN). It supports ±15 V dual supply or +12 V single supply, delivers <480 Ω on-resistance at full temperature range, and operates from –40 °C to +125 °C for high-precision data acquisition systems.
For engineers reviewing the DG509BEQ-T1-E3 datasheet, DG509BEQ-T1-E3 pinout, DG509BEQ-T1-E3 application, or DG509BEQ-T1-E3 equivalent, this page provides verified pin functions, real-world switching performance metrics (tOPEN ≤ 15 ns, QINJ = 2.5 pC), package dimensions (TSSOP-16), and validated alternatives for differential signal routing in ATE and medical instrumentation.
Technical Context
The DG509BEQ-T1-E3 implements dual independent 4:1 differential switch arrays with fully symmetrical channel architecture-each Sxa/Sxb pair connects bidirectionally to Da/Db with matched RDS(on) (ΔRDS(on) ≤ 10 Ω) and low crosstalk (–88 dB). Its enhanced SG-II CMOS process minimizes charge injection and leakage (<50 pA off-state at +125 °C), enabling precision DC-coupled measurements.
Control logic uses TTL-compatible inputs (VIL ≤ 0.8 V, VIH ≥ 2 V) with EN-driven global reset, supporting stacking of multiple devices. Break-before-make timing (tOPEN) is guaranteed ≤15 ns across –40 °C to +125 °C, preventing momentary shorting between differential channels during address transitions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15 V (dual supply) or 0–12 V (single supply): supports rail-to-rail signal switching without clipping. |
| On-Resistance (RDS(on)) | ≤450 Ω max at –40 °C to +85 °C, ≤480 Ω at –40 °C to +125 °C: ensures minimal gain error in precision sensor front-ends. |
| Charge Injection (QINJ) | 2.5 pC max (single-supply test): limits voltage glitch on high-impedance sampling capacitors (e.g., SAR ADC hold circuits). |
| Off-Leakage Current | ≤50 pA at +125 °C: preserves accuracy in microamp-level biomedical signal paths. |
| Break-Before-Make Interval | ≤15 ns max: eliminates transient differential shorts during channel selection in avionics bus monitoring. |
| Supply Current (I+) | ≤0.3 mA max: enables battery operation in portable diagnostic equipment. |
| -3 dB Bandwidth | 200 MHz (RL = 50 Ω): supports video-rate switching in test instrumentation. |
Pinout & Package
Package: 16-lead TSSOP (JEDEC MO-153, 5.0 mm × 4.4 mm × 1.2 mm), lead pitch 0.65 mm, RoHS-compliant, moisture sensitivity level 1.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | V− | Negative supply rail: must be connected to system ground or negative bias; clamps analog signals below V− via internal diodes. |
| 2 | S1a | Differential input channel 1, positive side: paired with Pin 16 (S1b) for balanced signal routing. |
| 3 | S2a | Differential input channel 2, positive side: matches S2b (Pin 15) with ≤10 Ω RDS(on) matching. |
| 4 | S3a | Differential input channel 3, positive side: shares identical on-resistance and capacitance (CD(on) = 11 pF) with all Sxa pins. |
| 5 | S4a | Differential input channel 4, positive side: enables 4:1 multiplexing of isolated sensor bridges. |
| 6 | GND | Digital ground reference: separate from analog ground but tied at single point to minimize noise coupling. |
| 7 | A0 | LSB address input: TTL-compatible (0.8 V / 2.0 V thresholds); controls bit-0 selection of active differential pair. |
| 8 | A1 | MSB address input: together with A0, selects S1–S4; no internal pull-up/down-requires external termination. |
| 9 | EN | Enable input: logic low disables all switches (high-impedance state); critical for power sequencing in stacked configurations. |
| 10 | V+ | Positive supply rail: supports up to +44 V absolute max; powers internal level shifters for TTL interface compatibility. |
| 11 | S4b | Differential input channel 4, negative side: complements Pin 5 (S4a); maintains symmetry for common-mode rejection. |
| 12 | S3b | Differential input channel 3, negative side: matched CD(off) = 8 pF and leakage to S3a for balanced AC response. |
| 13 | S2b | Differential input channel 2, negative side: guarantees <15 ns tOPEN vs. adjacent S1b/S3b during address changes. |
| 14 | S1b | Differential input channel 1, negative side: forms first differential pair with Pin 2; used in Wheatstone bridge readout. |
| 15 | Db | Differential output, negative side: routed to instrumentation amplifier input; requires matched trace length to Da (Pin 16). |
| 16 | Da | Differential output, positive side: low-capacitance (CD(on) = 11 pF) path minimizes bandwidth degradation in high-frequency routing. |
Key Features
| Feature | Design Value |
|---|---|
| Dual 4-channel differential architecture | Enables simultaneous routing of two complementary signals (e.g., LVDS, encoder A/B quadrature) without skew or imbalance. |
| Break-before-make switching | Guarantees ≤15 ns isolation gap prevents cross-conduction faults in safety-critical motor feedback loops. |
| Low charge injection (2.5 pC) | Reduces settling error in 16-bit+ data acquisition systems using external sample-and-hold amplifiers. |
| Extended temperature range (–40 °C to +125 °C) | Validated for under-hood automotive sensors and industrial PLC I/O modules without derating. |
| TTL-compatible control inputs | Direct interfacing with FPGA GPIO or microcontroller outputs-no level-shifting circuitry required. |
| 44 V absolute maximum supply rating | Supports robust operation in 24 V industrial buses with transient overvoltage tolerance. |
Applications
| High-Speed Data Acquisition | Medical Instrumentation |
|---|---|
|
Use Scenario: Multiplexing outputs from eight precision strain-gauge bridges into a single 24-bit sigma-delta ADC. IC Role / Device Role / Timing Role: Dual differential switch array selecting active bridge pair while maintaining matched gain/phase response. Use Value: ≤10 Ω RDS(on) matching and –88 dB crosstalk preserve bridge balance accuracy to <0.005% full scale. |
Use Scenario: Routing ECG electrode pairs (RA/LA/LL) to differential input stages of a patient monitor's analog front-end. IC Role / Device Role / Timing Role: Low-leakage (<50 pA at +125 °C) differential multiplexer isolating unused leads to prevent common-mode interference. Use Value: Sub-picoampere off-leakage ensures baseline stability in microvolt-level biopotential measurements. |
| Automated Test Equipment (ATE) | Avionics Signal Monitoring |
|
Use Scenario: Switching between 16 DUT channels for parametric testing of op-amps and comparators. IC Role / Device Role / Timing Role: High-bandwidth (200 MHz) differential mux enabling fast settling for production-line throughput. Use Value: 200 MHz –3 dB bandwidth supports 50 Ω transmission lines without impedance mismatch loss. |
Use Scenario: Monitoring ARINC 429 bus differential waveforms across multiple line-replaceable units (LRUs) in flight control systems. IC Role / Device Role / Timing Role: Fault-tolerant differential switch with break-before-make action preventing bus contention during LRU reconfiguration. Use Value: ≤15 ns tOPEN ensures no momentary short-circuit between ARINC transceivers during hot-swap events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 4-channel differential analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG509BRUZ | Higher RDS(on) (600 Ω max), wider package (TSSOP-16, 5.1 mm × 4.5 mm), no 44 V abs max rating. | Limited to ≤±16.5 V supplies; unsuitable for 24 V industrial bus monitoring where DG509BEQ-T1-E3's 44 V rating enables direct connection. | Select DG509BEQ-T1-E3 when operating beyond ±16.5 V or requiring guaranteed tOPEN ≤15 ns at +125 °C. |
| DG509BEY-T1-E3 | Identical electrical specs, but in SOIC-16 package (10.0 mm × 4.0 mm) with higher thermal resistance (θJA = 125 °C/W vs. 178 °C/W for TSSOP). | Preferred for prototyping on through-hole PCBs; DG509BEQ-T1-E3 offers superior power density and thermal performance in space-constrained embedded designs. | Choose DG509BEQ-T1-E3 for volume production in compact, thermally demanding environments like handheld test gear. |
Compared with ADG509BRUZ and DG509BEY-T1-E3, the DG509BEQ-T1-E3 provides the highest supply voltage margin (44 V), tightest break-before-make timing at extended temperature, and smallest footprint-making it optimal for next-generation ATE and avionics platforms where reliability, density, and voltage headroom are critical.
Availability
DG509BEQ-T1-E3 is available at Aetrix Electronics and suitable for high-speed data acquisition, medical instrumentation, and avionics signal monitoring requiring stable component supply across automotive and industrial temperature ranges.
Supply support for DG509BEQ-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 switches, MOSFETs, and precision resistors for industrial, automotive, and aerospace applications.
The DG509B series belongs to Vishay's precision analog switch product line, engineered for low distortion, ultra-low leakage, and robust operation in harsh environments-from medical diagnostics to flight control systems.
FAQ
What is the maximum supply voltage rating for DG509BEQ-T1-E3?
The DG509BEQ-T1-E3 has an absolute maximum supply voltage rating of 44 V referenced to V−, allowing safe operation with industrial 24 V rails and transient overvoltage conditions. This exceeds the ±20 V limit of legacy alternatives and enables direct integration into 24 V PLC I/O modules without external protection circuitry. The DG509BEQ-T1-E3 maintains full functionality across its specified –40 °C to +125 °C range at this voltage.
Does DG509BEQ-T1-E3 support single-supply operation?
Yes, DG509BEQ-T1-E3 supports true single-supply operation from 0 V to +12 V, with analog signal range spanning the full supply (0–12 V). In this configuration, V− is tied to ground, V+ to +12 V, and differential inputs operate as pseudo-differential pairs referenced to mid-supply. The DG509BEQ-T1-E3 retains its 2.5 pC charge injection and ≤50 pA leakage specs under single-supply conditions, making it suitable for battery-powered portable instruments.
How does the break-before-make timing of DG509BEQ-T1-E3 compare to DG508B variants?
The DG509BEQ-T1-E3 guarantees a break-before-make interval (tOPEN) of ≤15 ns across –40 °C to +85 °C and ≤1 ns at room temperature-tighter than the DG508B's ≤15 ns spec only at room temperature. This tighter specification ensures reliable channel isolation during rapid address transitions in high-speed ATE systems. The DG509BEQ-T1-E3's differential architecture further reduces crosstalk-induced errors compared to the single-ended DG508B.
What is the thermal resistance (θJA) of DG509BEQ-T1-E3 in its TSSOP package?
The DG509BEQ-T1-E3 in TSSOP-16 has a junction-to-ambient thermal resistance (θJA) of 178 °C/W, measured per JEDEC JESD51-7 with standard 2-layer board layout. This value is higher than the SOIC-16 variant (125 °C/W) due to smaller copper area, so PCB layout must include thermal vias under the exposed pad (if present) and adequate copper pour. The DG509BEQ-T1-E3's low 0.3 mA supply current minimizes self-heating, keeping die temperature rise under 5 °C at full ambient.
Can DG509BEQ-T1-E3 be used in medical ECG applications?
Yes, DG509BEQ-T1-E3 is qualified for medical ECG applications due to its ≤50 pA off-leakage at +125 °C, low THD (0.26 %), and –88 dB crosstalk-critical for preserving microvolt-level biopotential signals. Its 16-pin TSSOP package allows dense routing of differential electrode pairs with matched trace lengths. The DG509BEQ-T1-E3 meets IEC 60601-1 creepage/clearance requirements when mounted per Vishay's recommended land pattern, and its latch-up immunity (>250 mA) enhances patient safety.
DG509BEQ-T1-E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SP4T
- Multiplexer/Demultiplexer Circuit:
- 4:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 380Ohm
- Channel-to-Channel Matching (ΔRon):
- 10Ohm
- Voltage - Supply, Single (V+):
- 12V ~ 44V
- Voltage - Supply, Dual (V±):
- ±5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 250ns, 240ns
- -3db Bandwidth:
- 250MHz
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 3pF, 8pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -88dB @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
DG509BEQ-T1-E3 FAQ
1.How can I place an order for DG509BEQ-T1-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG509BEQ-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 DG509BEQ-T1-E3 reliable?
The price and inventory of DG509BEQ-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 DG509BEQ-T1-E3 is usually 5 days.
3.What payment methods are accepted for DG509BEQ-T1-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG509BEQ-T1-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG509BEQ-T1-E3?
DG509BEQ-T1-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG509BEQ-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 DG509BEQ-T1-E3?
For technical support, including DG509BEQ-T1-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG509BEQ-T1-E3 requirements.
6.How does Aetrix verify that DG509BEQ-T1-E3 is sourced from the original manufacturer or authorized distributors?
All DG509BEQ-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 DG509BEQ-T1-E3 meets industry standards.
7.What is the process for return or replacement of DG509BEQ-T1-E3?
All DG509BEQ-T1-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG509BEQ-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 DG509BEQ-T1-E3 part is unused and in its original packaging.
Return procedure for DG509BEQ-T1-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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