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Vishay Siliconix DG202BDQ-E3
- Part No.:
- DG202BDQ-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
DG202BDQ-E3.pdf
- Description:
- IC SW SPST-NOX4 85OHM 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,141
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Product details
Overview
DG202BDQ-E3 from Vishay Siliconix is a quad single-pole single-throw (SPST) normally open analog switch IC designed for precision signal routing in ±15 V dual-supply or +12 V single-supply systems. It delivers 45 Ω on-resistance, 120 ns turn-on time, 1 pC charge injection, ±22 V analog signal range, and 90 dB off-isolation at 100 kHz.
For engineers reviewing the DG202BDQ-E3 datasheet, DG202BDQ-E3 pinout, DG202BDQ-E3 application, or DG202BDQ-E3 equivalent, key selection criteria include bi-directional analog switching capability, low leakage (±20 pA), RoHS-compliant TSSOP-16 packaging, and compatibility with TTL/CMOS logic levels.
Technical Context
The DG202BDQ-E3 implements four independent SPST switches with true bi-directional conduction when on and rail-to-rail blocking when off. Its silicon gate CMOS process enables low RDS(on) matching (ΔRDS(on) ≤ 2 Ω) and latchup immunity via epitaxial isolation.
Charge injection compensation minimizes transients during switching, supporting sample-and-hold and precision filter applications. The device operates across –40 °C to +85 °C and supports both dual-supply (±4.5 V to ±22 V) and single-supply (+4.5 V to +25 V) configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15 V (dual supply) or 0–12 V (single supply): supports full-rail signal handling without clipping |
| RDS(on) | 45 Ω typical at ±15 V: ensures minimal insertion loss and voltage drop in signal paths |
| tON/tOFF | 120 ns / 65 ns typical: enables fast multiplexing in data acquisition and test equipment |
| Charge Injection | 1 pC typical: reduces sampling error in precision hold circuits and ADC front-ends |
| Off-Isolation (OIRR) | 90 dB at 100 kHz: prevents crosstalk between active and inactive channels |
| ID(off)/IS(off) | ±20 pA max at ±14 V: maintains high impedance in off-state for sensitive sensor interfaces |
| Supply Range | ±4.5 V to ±22 V dual or +4.5 V to +25 V single: accommodates industrial and instrumentation power architectures |
Pinout & Package
TSSOP-16 package per JEDEC MS-012, 5.00 mm × 4.40 mm footprint, 0.65 mm pitch, 1.20 mm max height, RoHS-compliant matte tin lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 | INx (Control Input) | CMOS/TTL-compatible digital input controlling channel x; logic high = ON for DG202BDQ-E3 |
| 2, 6, 10, 14 | Sx (Source) | Analog input terminal; bidirectional when on, blocks to V+ or V− when off |
| 3, 7, 11, 15 | Dx (Drain) | Analog output terminal; bidirectional when on, blocks to V+ or V− when off |
| 4 | V− | Negative supply rail; must be connected for dual-supply operation or grounded for single-supply |
| 8 | GND | Digital ground reference; decoupling capacitor required near pin |
| 12 | V+ | Positive supply rail; supplies internal level shifters and switch biasing circuitry |
| 16 | NC | No connect; internally unconnected; must remain floating or tied to GND per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| True bi-directional analog switching | Enables signal routing in either direction without polarity constraints-critical for sensor front-ends and bidirectional bus interfaces |
| Low 1 pC charge injection | Minimizes voltage step errors during sampling, directly improving accuracy in 12-bit+ data acquisition systems |
| ±22 V supply rating | Supports wide dynamic range analog signals common in industrial control and test instrumentation |
| 45 Ω on-resistance with <2 Ω matching | Ensures consistent gain and phase response across all four channels in multi-channel filtering or calibration circuits |
| RoHS-compliant TSSOP-16 | Reduces PCB area by >50% vs. SOIC-16 while maintaining thermal performance up to 640 mW dissipation |
Applications
| Industrial Instrumentation | Test Equipment |
|---|---|
Use Scenario: Multiplexing multiple sensor inputs (thermocouples, strain gauges) into a shared ADC channel under microcontroller control. IC Role / Device Role / Timing Role: Quad SPST analog switch providing isolated, low-distortion signal path selection with minimal offset drift. Use Value: Enables 4:1 analog multiplexing with <5 mV total error budget due to low RDS(on) mismatch and sub-pC charge injection. | Use Scenario: Automated signal routing in benchtop multimeters and parameter analyzers for auto-ranging and function switching. IC Role / Device Role / Timing Role: Precision analog switch managing signal path integrity during range changes and measurement mode transitions. Use Value: Delivers 90 dB off-isolation and 120 ns switching to prevent measurement contamination between ranges. |
| Disk Drive Electronics | Sample-and-Hold Circuits |
Use Scenario: Selecting head preamplifier outputs or servo control signals in HDD read/write channel ASICs. IC Role / Device Role / Timing Role: High-speed, low-leakage analog switch isolating sensitive analog paths from digital noise domains. Use Value: ±20 pA leakage and rail-to-rail blocking preserve signal fidelity in low-current head amplifier feedback loops. | Use Scenario: Holding sampled analog voltage for ADC conversion in precision data loggers and oscilloscope front-ends. IC Role / Device Role / Timing Role: Low-charge-injection switch enabling accurate acquisition and stable hold-phase voltage retention. Use Value: 1 pC charge injection limits aperture error to <1 LSB in 16-bit systems using 1 nF hold capacitors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1421BRUZ | Higher RDS(on) (1.3 Ω typical), lower supply rating (±15 V), 16-lead TSSOP but different pinout | Optimized for low on-resistance in low-voltage systems; not pin-compatible | Select when ultra-low on-resistance is critical and board redesign is acceptable |
| MAX4617ESE+ | Lower supply rating (±20 V), higher leakage (±100 pA), SOIC-16 only, no TSSOP option | Better suited for cost-sensitive industrial controls where TSSOP footprint is not required | Choose for legacy SOIC layouts or where ±20 V rating suffices and leakage tolerance is >100 pA |
Compared with ADG1421BRUZ and MAX4617ESE+, the DG202BDQ-E3 offers superior ±22 V rating and lower leakage (±20 pA), making it preferred for high-voltage precision instrumentation where signal integrity and rail-to-rail operation are essential-though neither alternative is pin-compatible.
Availability
DG202BDQ-E3 is available at Aetrix Electronics and suitable for industrial instrumentation, automated test equipment, disk drive electronics, and precision sample-and-hold circuits requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DG202BDQ-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 semiconductor manufacturer specializing in discrete components and analog ICs, with expertise in power management, signal conditioning, and precision switching technologies.
The DG202B series belongs to Vishay's high-performance analog switch product line, engineered specifically for applications demanding low distortion, high off-isolation, and robust rail-to-rail signal handling in harsh industrial and test environments.
FAQ
What is the maximum analog signal voltage supported by the DG202BDQ-E3?
The DG202BDQ-E3 supports analog signals up to ±22 V relative to its supply rails, with guaranteed operation across ±15 V (dual supply) or 0–12 V (single supply). Absolute maximum ratings allow signals from (V−) −2 V to (V+) +2 V, clamped by internal diodes-exceeding this requires external protection. This specification is confirmed in the Absolute Maximum Ratings table of Vishay document 70037.
Is the DG202BDQ-E3 pin-compatible with the older DG202A or DG202 versions?
No, the DG202BDQ-E3 is not pin-compatible with DG202A or original DG202. While functional behavior (normally open SPST) is identical, the DG202BDQ-E3 uses a TSSOP-16 package with 0.65 mm pitch, whereas DG202A was offered only in CerDIP and plastic DIP packages. Pin numbering and thermal pad requirements differ significantly-PCB layout must be redesigned for DG202BDQ-E3.
Does the DG202BDQ-E3 require external pull-up or pull-down resistors on its INx pins?
No, the DG202BDQ-E3 does not require external pull-up or pull-down resistors on its INx pins. Its TTL/CMOS-compatible inputs have specified thresholds (VINH ≥ 2.4 V, VINL ≤ 0.8 V) and low input current (±1 µA), allowing direct connection to microcontroller GPIOs or logic gates. Internal input structure ensures stable logic states without external biasing under normal operating conditions.
Can the DG202BDQ-E3 operate from a single +5 V supply?
No, the DG202BDQ-E3 cannot operate reliably from a single +5 V supply. Its minimum continuous supply requirement is +4.5 V for single-supply mode, but functional analog signal range collapses to 0–5 V with degraded RDS(on) (≥160 Ω) and increased charge injection (4 pC). For 5 V systems, Vishay recommends the DG202BDY-E3 (SOIC) or verifying performance per single-supply specs in document 70037, page 4.
What is the thermal resistance (θJA) of the DG202BDQ-E3 in its TSSOP-16 package?
The DG202BDQ-E3 in TSSOP-16 has a junction-to-ambient thermal resistance (θJA) of 125 °C/W when mounted on a standard 1-inch² FR-4 PCB with two internal copper layers, per Vishay package documentation 74417. Derating begins at 75 °C ambient, with 12 mW/°C reduction above that point-enabling 640 mW max power dissipation at 25 °C ambient.
DG202BDQ-E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Bulk
- 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):
- 2Ohm
- Voltage - Supply, Single (V+):
- 4.5V ~ 25V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 22V
- Switch Time (Ton, Toff) (Max):
- 300ns, 200ns
- -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-TSSOP
DG202BDQ-E3 FAQ
1.How can I place an order for DG202BDQ-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG202BDQ-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 DG202BDQ-E3 reliable?
The price and inventory of DG202BDQ-E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG202BDQ-E3 is usually 5 days.
3.What payment methods are accepted for DG202BDQ-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG202BDQ-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG202BDQ-E3?
DG202BDQ-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG202BDQ-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 DG202BDQ-E3?
For technical support, including DG202BDQ-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG202BDQ-E3 requirements.
6.How does Aetrix verify that DG202BDQ-E3 is sourced from the original manufacturer or authorized distributors?
All DG202BDQ-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 DG202BDQ-E3 meets industry standards.
7.What is the process for return or replacement of DG202BDQ-E3?
All DG202BDQ-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG202BDQ-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 DG202BDQ-E3 part is unused and in its original packaging.
Return procedure for DG202BDQ-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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