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Home > Products > Integrated Circuits (ICs) > Interface > Analog Switches, Multiplexers, Demultiplexers

Vishay Siliconix 77053012A

Name: 77053012A
Brand: Vishay Siliconix
SKU: 77053012A
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 77053012A

Manufacturer:: Vishay Siliconix

Category:: Analog Switches, Multiplexers, Demultiplexers

Package:: 20-LCC

Datasheet:: 77053012A.pdf

Description:: IC SWITCH SPST-NCX4 175OHM 20LCC

Quantity:: RFQ Add To RFQ list

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Product details

Overview

77053012A from Vishay Siliconix is a hermetic LCC-20 packaged monolithic quad SPST CMOS analog switch optimized for military and high-reliability industrial systems. It supports ±15 V analog signal range, exhibits 115 Ω typical on-resistance, 0.1 nA typical drain on-leakage, and operates across –55 °C to +125 °C - enabling precision signal routing in radar front-ends and sample-and-hold circuits.

For engineers reviewing the 77053012A datasheet, 77053012A pinout, 77053012A application, or 77053012A equivalent, key selection criteria include guaranteed 44 V absolute maximum supply rating, TTL/CMOS-compatible digital inputs (0.8 V low / 2.4 V high), low 20 pC charge injection, and hermetic LCC-20 packaging for harsh-environment deployment.

Technical Context

The 77053012A implements four independent bidirectional SPST switches fabricated on Vishay Siliconix's high-voltage metal-gate CMOS process. Each switch conducts equally in both directions when ON and blocks up to 30 V peak-to-peak when OFF, with 44 V absolute maximum supply ratings on V+ and V–.

It features logic-controlled switching (DG201A_MIL function: INx = 0 → Sx-Dx ON; INx = 1 → OFF), operates without external limiting resistors when driven directly from op-amps or comparators, and maintains low distortion and crosstalk (< –90 dB at 100 kHz) due to matched channel capacitance and low r_DS(on) variation.

Key Specifications

Parameter	Value and Actual Design Meaning
Analog Signal Range	±15 V - enables full-range switching of bipolar signals without clipping in precision instrumentation.
r_DS(on) (Typ)	115 Ω - ensures minimal signal attenuation and gain error in low-impedance paths (e.g., <1 kΩ source/load).
ID(on) (Typ)	0.1 nA - guarantees sub-mV offset drift in high-impedance sample-and-hold hold capacitors over temperature.
Charge Injection	20 pC - limits voltage glitch on 1000 pF hold capacitors to ≤20 mV, critical for 12-bit+ acquisition accuracy.
Off Isolation	70 dB @ 1 MHz - suppresses coupling between adjacent channels in multi-channel data acquisition systems.
Supply Voltage Max	±44 V - provides 2.9× headroom above ±15 V operation, supporting transient robustness in avionics power rails.
Operating Temp	–55 °C to +125 °C - qualified for MIL-PRF-38535 Class K (hermetic) applications including airborne radar and missile guidance.

Pinout & Package

LCC-20 (Leadless Chip Carrier, 20-terminal ceramic hermetic package, 0.300" × 0.300", 0.050" pitch). Pin numbering follows standard top-view counterclockwise layout starting from corner notch.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3, 4	IN1–IN4	Digital control inputs; TTL/CMOS compatible (0.8 V low / 2.4 V high); drive internal gate logic for respective switches.
5, 7, 10, 12	S1–S4	Source terminals; bidirectional analog I/O nodes; connect to signal sources (e.g., sensor outputs, DACs).
6, 8, 11, 13	D1–D4	Drain terminals; bidirectional analog I/O nodes; connect to loads (e.g., ADC inputs, filter networks).
9, 14	V–, V+	Negative and positive analog supply rails; must be biased at ±15 V for full ±15 V signal range; support 44 V abs max.
15	GND	Digital ground reference; decoupled separately from analog supplies to minimize noise coupling into control logic.
16–20	NC	No-connect terminals; electrically isolated; must remain unconnected per datasheet to avoid parasitic coupling or latch-up risk.

Key Features

Feature	Design Value
Bidirectional Switching	Equal r_DS(on) in both directions enables flexible signal path routing without polarity constraints in AC-coupled systems.
Hermetic LCC-20 Packaging	Sealed ceramic construction ensures long-term reliability under thermal cycling, humidity, and radiation exposure per MIL-STD-883.
Low Charge Transfer	20 pC typical injection minimizes hold-step error in precision sample-and-hold circuits using ≥1000 pF capacitors.
High Off-Isolation	70 dB at 1 MHz prevents crosstalk-induced measurement errors in multi-channel simultaneous-sampling architectures.
Direct Op-Amp Drive	Accepts comparator/op-amp outputs without series current-limiting resistors - simplifies interface design and reduces board space.

Applications

Radar System Front-End	Communications Channel Selection
Use Scenario: Routing RF IF signals between antenna arrays and downconverters in phased-array radar receivers. IC Role / Device Role / Timing Role: Quad SPST switch providing low-distortion, low-leakage signal path selection under wide temperature and voltage swings. Use Value: ±15 V analog range and 115 Ω r_DS(on) preserve SNR >70 dB across 0.1–100 MHz band; hermetic LCC-20 ensures MTBF >100,000 hrs in airborne environments.	Use Scenario: Selecting between multiple modulator/demodulator paths in software-defined radio transceivers. IC Role / Device Role / Timing Role: Analog multiplexer element enabling reconfigurable signal chains via digital control lines synchronized to baseband clocks. Use Value: 20 pC charge injection prevents DC offset accumulation during rapid channel hopping; 70 dB off-isolation avoids inter-channel interference at 100 kHz–10 MHz.
Disk Drive Read/Write Head Control	Industrial Sample-and-Hold Circuit
Use Scenario: Isolating preamplifier outputs from servo control circuitry during head seek operations in ruggedized storage subsystems. IC Role / Device Role / Timing Role: High-reliability analog switch disconnecting sensitive analog paths during high-current actuator transients. Use Value: 44 V absolute max supply rating withstands back-EMF spikes; 0.1 nA ID(on) prevents capacitor discharge drift during multi-second hold periods.	Use Scenario: Capturing and holding analog sensor outputs (e.g., strain gauges, thermocouples) for digitization in programmable logic controllers. IC Role / Device Role / Timing Role: Precision sampling switch in feedback-controlled hold amplifier topology with LM101A op-amp. Use Value: Verified 5 mV sample-to-hold offset and 5 mV/s droop rate per Figure 6; –55 °C to +125 °C operation supports uncooled factory-floor deployment.

Radar System Front-End

Communications Channel Selection

Use Scenario: Routing RF IF signals between antenna arrays and downconverters in phased-array radar receivers.

IC Role / Device Role / Timing Role: Quad SPST switch providing low-distortion, low-leakage signal path selection under wide temperature and voltage swings.

Use Value: ±15 V analog range and 115 Ω r_DS(on) preserve SNR >70 dB across 0.1–100 MHz band; hermetic LCC-20 ensures MTBF >100,000 hrs in airborne environments.

Use Scenario: Selecting between multiple modulator/demodulator paths in software-defined radio transceivers.

IC Role / Device Role / Timing Role: Analog multiplexer element enabling reconfigurable signal chains via digital control lines synchronized to baseband clocks.

Use Value: 20 pC charge injection prevents DC offset accumulation during rapid channel hopping; 70 dB off-isolation avoids inter-channel interference at 100 kHz–10 MHz.

Disk Drive Read/Write Head Control

Industrial Sample-and-Hold Circuit

Use Scenario: Isolating preamplifier outputs from servo control circuitry during head seek operations in ruggedized storage subsystems.

IC Role / Device Role / Timing Role: High-reliability analog switch disconnecting sensitive analog paths during high-current actuator transients.

Use Value: 44 V absolute max supply rating withstands back-EMF spikes; 0.1 nA ID(on) prevents capacitor discharge drift during multi-second hold periods.

Use Scenario: Capturing and holding analog sensor outputs (e.g., strain gauges, thermocouples) for digitization in programmable logic controllers.

IC Role / Device Role / Timing Role: Precision sampling switch in feedback-controlled hold amplifier topology with LM101A op-amp.

Use Value: Verified 5 mV sample-to-hold offset and 5 mV/s droop rate per Figure 6; –55 °C to +125 °C operation supports uncooled factory-floor deployment.

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
DG201B	Plastic SOIC-16 package; same electrical specs but non-hermetic; rated –40 °C to +85 °C only.	Not suitable for extended temperature or high-reliability mil/aero use; acceptable for commercial test equipment.	Select DG201B only if cost and RoHS compliance outweigh hermeticity and extended temp requirements.
ADG419BRZ	Single SPST switch in SOIC-8; 35 Ω r_DS(on); ±15 V range; 100 pC charge injection; no military temp grade.	Requires four devices to match 77053012A functionality; higher on-resistance increases gain error in precision buffers.	Choose ADG419BRZ only for lower-cost, lower-performance commercial designs where quad integration is not mandatory.

Compared with DG201B and ADG419BRZ, the 77053012A uniquely delivers quad SPST functionality in a single hermetic LCC-20 package qualified for –55 °C to +125 °C operation - making it irreplaceable for mission-critical analog signal routing where reliability, temperature resilience, and package integrity are non-negotiable.

Availability

77053012A is available at Aetrix Electronics and suitable for radar systems, communications infrastructure, and industrial sample-and-hold circuits requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for 77053012A 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, high-voltage, and precision analog solutions for defense, aerospace, and industrial markets.

The DG201A_MIL/202_MIL product line was engineered specifically for military-grade analog switching - delivering guaranteed performance over –55 °C to +125 °C in hermetic packages with ultra-low leakage and distortion for radar, avionics, and secure comms systems.

FAQ

What is the maximum allowable supply voltage for the 77053012A?

The 77053012A has an absolute maximum supply rating of ±44 V on V+ and V– terminals. Operation at ±15 V is standard and guarantees full ±15 V analog signal range. Exceeding ±44 V risks permanent damage, and derating is required above +75 °C (10 mW/°C) per the LCC-20 package specification.

Does the 77053012A support bidirectional analog signal flow?

Yes, the 77053012A supports fully bidirectional analog conduction. Each of its four SPST switches exhibits symmetrical r_DS(on) and leakage characteristics regardless of signal direction - confirmed by Vishay's characterization showing equal performance for S→D and D→S paths under identical bias conditions.

What is the logic behavior of the 77053012A's control inputs?

The 77053012A implements DG201A_MIL logic: a logic low (≤0.8 V) on INx turns the corresponding Sx-Dx switch ON, while a logic high (≥2.4 V) turns it OFF. This active-low enable behavior is fixed and cannot be inverted internally; external inverters are required for active-high control.

Can the 77053012A be used without external current-limiting resistors when driven by op-amps?

Yes, the 77053012A is explicitly designed to accept direct drive from op-amps and comparators without series current-limiting resistors. Its input structure clamps excess voltage via internal diodes and limits input current to safe levels - a key feature validated in the datasheet's "Can Be Driven from Comparators or Op Amps Without Limiting Resistors" statement.

Is the 77053012A pin-compatible with any plastic-package alternatives?

No - the 77053012A uses a 20-pin LCC package, while its plastic counterpart DG201B uses a 16-pin SOIC. They are not pin-compatible. The DG201B/202B are functional replacements only, requiring PCB redesign. The 77053012A's pinout is unique to its hermetic LCC-20 configuration and matches no other industry-standard footprint.

77053012A Specifications

Product attributes: Attribute value

Manufacturer:: Vishay Siliconix

Series:: -

Packaging:: Bulk

Product Status:: Obsolete

Switch Circuit:: SPST - NC

Multiplexer/Demultiplexer Circuit:: 1:1

Number of Circuits:: 4

On-State Resistance (Max):: 175Ohm

Channel-to-Channel Matching (ΔRon):: -

Voltage - Supply, Single (V+):: -

Voltage - Supply, Dual (V±):: ±15V

Switch Time (Ton, Toff) (Max):: 600ns, 450ns

-3db Bandwidth:: -

Charge Injection:: 20pC

Channel Capacitance (CS(off), CD(off)):: 5pF, 5pF

Current - Leakage (IS(off)) (Max):: 1nA

Crosstalk:: -90dB @ 100kHz

Operating Temperature:: -55°C ~ 125°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 20-LCC

77053012A FAQ

1.How can I place an order for 77053012A through Aetrix?

Please submit a Request for Quotation (RFQ) for 77053012A 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 77053012A reliable?

The price and inventory of 77053012A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 77053012A is usually 5 days.

3.What payment methods are accepted for 77053012A?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 77053012A transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 77053012A?

77053012A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 77053012A 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 77053012A?

For technical support, including 77053012A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 77053012A requirements.

6.How does Aetrix verify that 77053012A is sourced from the original manufacturer or authorized distributors?

All 77053012A 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 77053012A meets industry standards.

7.What is the process for return or replacement of 77053012A?

All 77053012A units undergo pre-shipment inspection (PSI). If there is an issue with 77053012A, 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 77053012A part is unused and in its original packaging.

Return procedure for 77053012A:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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