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Vishay Siliconix DG202BAK-E3
- Part No.:
- DG202BAK-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-CDIP (0.300", 7.62mm)
- Datasheet:
-
DG202BAK-E3.pdf
- Description:
- IC SW SPST-NOX4 85OHM 16CERDIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,157
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Product details
Overview
DG202BAK-E3 from Vishay Siliconix is a quad SPST normally open analog switch IC designed for precision signal routing in dual-supply ±15 V systems. It delivers 45 Ω on-resistance, 120 ns turn-on time, and 20 pA off-leakage, enabling high-fidelity switching in sample-and-hold circuits and programmable filter designs.
For engineers reviewing the DG202BAK-E3 datasheet, DG202BAK-E3 pinout, DG202BAK-E3 application, or DG202BAK-E3 equivalent, this page provides verified electrical parameters, package mapping to 16-pin CerDIP, functional truth table alignment, and real-world design context for industrial instrumentation and test equipment signal path selection.
Technical Context
The DG202BAK-E3 implements four independent single-pole single-throw (SPST) switches with true bi-directional analog signal handling and rail-to-rail operation across ±22 V. Its silicon gate CMOS process enables low charge injection (1 pC) and latchup immunity via epitaxial isolation.
Each channel features TTL/CMOS-compatible digital inputs (VINH ≥ 2.4 V, VINL ≤ 0.8 V), operates from ±4.5 V to ±22 V supplies, and maintains stable RDS(on) over temperature (–55 °C to +125 °C). The device blocks signals beyond supply rails in the off state and supports single-supply operation up to +25 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±4.5 V to ±22 V - supports wide analog input range up to ±15 V with full functionality |
| On-Resistance (RDS(on)) | 45 Ω typical at ±15 V - ensures minimal signal attenuation and gain error in precision amplifiers |
| Turn-On Time (tON) | 120 ns typical - enables fast multiplexing in data acquisition systems sampling at >1 MHz |
| Off-Leakage Current | ±20 pA max at ±14 V - preserves accuracy in high-impedance sample-and-hold hold capacitors |
| Charge Injection | 1 pC typical - limits voltage glitch on hold capacitor to <1 mV with 1 nF load |
| Signal Bandwidth | Off-isolation 90 dB at 100 kHz - suppresses crosstalk between adjacent channels in multi-channel instruments |
| Operating Temperature | –55 °C to +125 °C - qualified for aerospace, military, and extended-range industrial environments |
Pinout & Package
Package: 16-pin Ceramic Dual In-Line Package (CerDIP), JEDEC MS-012 compliant, 0.300-inch width, through-hole mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 10, 13 (IN1–IN4) | Digital control input | Active-high logic: logic "1" (≥2.4 V) enables switch closure; logic "0" (≤0.8 V) opens switch |
| 2, 5, 11, 14 (S1–S4) | Source terminal | Analog input/output node; bidirectional conduction when switch is ON; isolated from D when OFF |
| 3, 6, 12, 15 (D1–D4) | Drain terminal | Analog output/input node; connects to S during ON state; clamped by internal diodes if exceeding V+/V− |
| 7 (V−) | Negative supply rail | Bias reference for analog signal swing; must be connected to system negative supply or ground in single-supply mode |
| 8 (GND) | Ground reference | Digital logic ground; tied to V− in dual-supply configurations; serves as common return for control signals |
| 9 (NC) | No-connect terminal | Internally unconnected; must remain floating - no external connection permitted |
| 16 (V+) | Positive supply rail | Bias reference for analog signal swing; supports up to +22 V; powers internal level-shift circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Normally open topology | Ensures default signal isolation until explicit logic high command - critical for fail-safe instrumentation front-ends |
| Bi-directional analog conduction | Enables use in both source-to-drain and drain-to-source signal paths without polarity constraints |
| Rail-to-rail analog signal handling | Supports input signals from V− to V+ (±22 V max), eliminating need for external level-shifting in ±15 V systems |
| Low glitch energy (1 pC) | Minimizes transient voltage step on hold capacitors, reducing aperture error in precision sample-and-hold stages |
| Latchup-immune construction | Epitaxial layer prevents destructive latchup under transient overvoltage or ESD events |
Applications
| Sample-and-Hold Circuits | Programmable Filter Networks |
|---|---|
|
Use Scenario: Precision data acquisition system capturing sensor outputs at 100 kSPS with <5 mV hold droop over 1 s. IC Role / Device Role / Timing Role: DG202BAK-E3 acts as the acquisition-phase switch, connecting analog input to hold capacitor only during sampling window; its 20 pA leakage prevents voltage decay during hold phase. Use Value: Enables 16-bit effective resolution by limiting hold capacitor discharge to <0.5 µV/s under worst-case conditions. |
Use Scenario: Digitally reconfigurable low-pass filter in automated test equipment selecting cutoff frequencies from 100 Hz to 100 kHz. IC Role / Device Role / Timing Role: DG202BAK-E3 selects discrete capacitor values in feedback path of LM101A op-amp; TTL-compatible inputs allow direct FPGA control without level translation. Use Value: Achieves <±0.1% corner frequency accuracy due to 45 Ω RDS(on) matching across all four channels. |
| Precision Amplifier Gain Switching | Industrial Sensor Multiplexing |
|
Use Scenario: Programmable-gain instrumentation amplifier for strain gauge readout with selectable gains of 1×, 10×, 100×, and 1000×. IC Role / Device Role / Timing Role: DG202BAK-E3 routes input signal to one of four feedback resistor networks; normally open behavior guarantees no unintended gain path during power-up. Use Value: Maintains <0.01% gain error across temperature due to matched RDS(on) drift characteristics. |
Use Scenario: 16-channel thermocouple scanner in process control PLC requiring cold-junction compensation and linearization. IC Role / Device Role / Timing Role: DG202BAK-E3 sequentially connects each thermocouple to a shared signal conditioning chain; 120 ns tON allows full 16-channel scan in <2 µs. Use Value: Eliminates cross-channel interference with 95 dB channel-to-channel crosstalk suppression. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1421BRUZ | Single SPST NO, 1.5 Ω RDS(on), ±15 V supply, 16-lead TSSOP | Lower on-resistance but single-channel; requires four devices for quad function | Select when ultra-low on-resistance (<2 Ω) is mandatory and board area permits discrete channel implementation |
| MAX4617ESE+ | Quad SPST NO, 60 Ω RDS(on), ±20 V supply, 16-lead SOIC | Slightly higher RDS(on); rated only to +85 °C ambient (vs. +125 °C for DG202BAK-E3) | Prefer for commercial-grade test fixtures where extended temperature range is not required |
Compared with ADG1421BRUZ and MAX4617ESE+, the DG202BAK-E3 offers superior high-temperature operation (–55 °C to +125 °C), lower charge injection (1 pC vs. 3–5 pC), and integrated quad configuration - reducing PCB footprint and interconnect complexity in space-constrained instrumentation designs.
Availability
DG202BAK-E3 is available at Aetrix Electronics and suitable for industrial instrumentation, automated test equipment, and precision data acquisition systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DG202BAK-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 leadership in power MOSFETs, diodes, optoelectronics, and precision analog switches.
The DG202BAK-E3 belongs to Vishay's DG20xB series of improved quad analog switches, engineered specifically for high-reliability signal routing in test and measurement, industrial control, and aerospace systems demanding rail-to-rail operation and latchup immunity.
FAQ
What is the maximum analog signal voltage supported by DG202BAK-E3?
The DG202BAK-E3 supports analog input signals from V− to V+, with absolute maximum ratings of ±22 V across the supply rails. Under standard ±15 V operation, it reliably handles ±15 V signals without clipping or distortion, making it suitable for high-dynamic-range instrumentation interfaces where signals approach supply rails.
Is DG202BAK-E3 compatible with single-supply operation?
Yes, DG202BAK-E3 supports single-supply operation with V+ = +4.5 V to +25 V and V− tied to GND. In this configuration, the analog signal range shifts to 0 V to V+, enabling use in battery-powered portable instruments and microcontroller-based data loggers without dual-rail supplies.
How does the DG202BAK-E3 differ from the older DG202 variant?
The DG202BAK-E3 is an enhanced version of the original DG202, featuring lower on-resistance (45 Ω vs. 65 Ω), reduced leakage (20 pA vs. 100 pA), faster switching (120 ns tON vs. 180 ns), and improved latchup immunity via epitaxial layer integration - all validated across –55 °C to +125 °C.
Can DG202BAK-E3 be used in place of DG201BAK-E3?
No - DG202BAK-E3 is normally open, while DG201BAK-E3 is normally closed. Their truth tables are complementary: logic "1" turns DG202BAK-E3 ON but DG201BAK-E3 OFF. Substitution requires redesign of control logic and verification of signal path integrity during power-up and fault states.
What package type does DG202BAK-E3 use, and is it RoHS-compliant?
DG202BAK-E3 uses a 16-pin Ceramic Dual In-Line Package (CerDIP) with lead finish specified as Pb-free per RoHS Directive 2002/95/EC. The "-E3" suffix confirms compliance, and the device meets exemption criteria for high-melting-point solder alloys under Annex III.
DG202BAK-E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-CERDIP
DG202BAK-E3 FAQ
1.How can I place an order for DG202BAK-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG202BAK-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 DG202BAK-E3 reliable?
The price and inventory of DG202BAK-E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG202BAK-E3 is usually 5 days.
3.What payment methods are accepted for DG202BAK-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG202BAK-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG202BAK-E3?
DG202BAK-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG202BAK-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 DG202BAK-E3?
For technical support, including DG202BAK-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG202BAK-E3 requirements.
6.How does Aetrix verify that DG202BAK-E3 is sourced from the original manufacturer or authorized distributors?
All DG202BAK-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 DG202BAK-E3 meets industry standards.
7.What is the process for return or replacement of DG202BAK-E3?
All DG202BAK-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG202BAK-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 DG202BAK-E3 part is unused and in its original packaging.
Return procedure for DG202BAK-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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