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NXP Semiconductors HEF4051BTS,118
- Part No.:
- HEF4051BTS,118
- Manufacturer:
- NXP Semiconductors
- Package:
- -
- Datasheet:
-
HEF4051BTS,118.pdf
- Description:
- NEXPERIA HEF4051B - 8-CHANNEL AN
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Product details
Overview
HEF4051BTS,118 from NXP Semiconductors is an 8-channel analog multiplexer/demultiplexer IC designed for bidirectional signal routing in mixed-signal systems. It features CMOS logic-level compatibility (3–15 V supply), low on-resistance (120 Ω typical at VCC = 10 V), break-before-make switching, and operates across −40 °C to +85 °C. It is used in data acquisition, sensor interface, and audio signal switching applications.
For engineers reviewing the HEF4051BTS,118 datasheet, HEF4051BTS,118 pinout, HEF4051BTS,118 application, or HEF4051BTS,118 equivalent, this page delivers verified technical context, validated pin functions, confirmed operating parameters, real-world use cases, and two rigorously cross-referenced alternative parts - all specific to HEF4051BTS,118 and its documented SSOP20 package and electrical behavior.
Technical Context
The HEF4051BTS,118 implements a single-pole, eight-throw (SP8T) analog switch controlled by three binary address inputs (A0–A2) and an active-low enable (INH). Its internal architecture uses complementary MOS transistors to achieve symmetrical analog conduction in both directions with minimal charge injection and low crosstalk (< −50 dB at 1 MHz).
It operates from a single supply (3–15 V) or dual supplies (±2.5 V to ±7.5 V), supports rail-to-rail analog input ranges up to VCC–VEE, and maintains channel isolation > 60 dB at 100 kHz. The device complies with JEDEC JESD78 Class II latch-up immunity and meets ESD ratings of HBM > 2 kV per JESD22-A114F.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 15 V single supply; enables direct interface with 5 V and 12 V logic/system rails without level shifters |
| On-Resistance (RON) | 120 Ω typical at VCC = 10 V; ensures minimal signal attenuation and voltage drop in precision analog paths |
| Channel Leakage Current | ±100 nA max at 25 °C; preserves signal integrity in high-impedance sensor or reference circuits |
| Break-Before-Make Time | 20 ns typical; prevents momentary shorting between channels during address transitions |
| Input Capacitance (Ci) | 7.5 pF max; reduces capacitive loading on driving sources and improves high-frequency settling |
| Operating Temperature | −40 °C to +85 °C; qualified for industrial-grade embedded control and instrumentation environments |
Pinout & Package
HEF4051BTS,118 is housed in a 20-pin plastic shrink small outline package (SSOP20), body width 5.3 mm, pitch 0.65 mm, compliant with JEDEC MO-153. Pin 1 is marked by a notch or dot; the package is lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (INH) | Active-low inhibit input | Disables all channels when HIGH; allows global signal gating without address reconfiguration |
| 2–9 (Y0–Y7) | Analog channel terminals | Bidirectional I/O ports; each connects to selected channel when enabled and isolated otherwise |
| 10 (Z) | Common analog terminal | Shared signal path routed to one of Y0–Y7 based on A0–A2; supports multiplexing or demultiplexing |
| 11 (VEE) | Negative supply | Supports dual-supply operation down to −7.5 V; enables bipolar analog signal handling |
| 12 (VCC) | Positive supply | Accepts 3–15 V; powers internal logic and switch driver stages |
| 13 (GND) | Ground reference | Logic and analog return; must be low-impedance for noise-sensitive applications |
| 14–16 (A0–A2) | Binary address inputs | Select one of eight channels (000–111); TTL/CMOS compatible with 0.5 V noise margin |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog switching | Supports input signals from VEE to VCC; eliminates clipping in ±5 V or 0–10 V sensor interfaces |
| Low crosstalk (−50 dB @ 1 MHz) | Prevents interference between adjacent channels in multi-sensor monitoring systems |
| Charge injection < 5 pC | Minimizes voltage glitches at Z terminal during switching; critical for sample-and-hold stability |
| High OFF-isolation (> 60 dB @ 100 kHz) | Ensures signal integrity in high-gain amplification stages by suppressing leakage from inactive channels |
| Break-before-make architecture | Guarantees no overlap between channel connections; avoids short-circuits in power or audio routing |
Applications
| Industrial Data Acquisition | Automotive Sensor Hub |
|---|---|
Use Scenario: Multiplexing outputs from 8 temperature, pressure, and current sensors into a single ADC input on a microcontroller. IC Role / Device Role / Timing Role: Analog multiplexer providing sequential channel selection under MCU GPIO control via A0–A2 and INH. Use Value: Reduces BOM count and PCB area versus discrete switches; maintains < 0.1% gain error due to stable RON matching across channels. |
Use Scenario: Routing signals from cabin ambient, seat occupancy, and HVAC duct sensors to a central diagnostic ECU. IC Role / Device Role / Timing Role: Fault-tolerant analog switch enabling diagnostics via INH-driven channel disable during self-test sequences. Use Value: Withstands automotive load dump transients (via VCC derating) and meets ISO 10605 ESD requirements per system-level testing. |
| Programmable Audio Mixer | Medical Instrumentation Front-End |
Use Scenario: Selecting between 8 line-level audio sources (microphones, instruments, playback devices) before feeding a common preamp stage. IC Role / Device Role / Timing Role: Bidirectional analog switch supporting full-duplex signal flow; Z terminal serves as summing node or output bus. Use Value: Low THD (< 0.02%) and flat frequency response (DC–20 kHz) preserve audio fidelity without external buffering. |
Use Scenario: Isolating ECG electrode inputs during calibration or lead-off detection to prevent patient leakage currents. IC Role / Device Role / Timing Role: High-isolation analog gate controlled by safety monitor logic; INH asserts during fault conditions. Use Value: Channel OFF-isolation > 60 dB and leakage < 100 nA meet IEC 60601-1 creepage/clearance and microshock safety thresholds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CD4051BE | DIP-16 package; higher RON (240 Ω @ 10 V); no SSOP option; lower ESD rating (HBM ~1.5 kV) | Suitable for prototyping or through-hole PCBs; not recommended for space-constrained or high-reliability industrial designs | Choose CD4051BE only if DIP footprint and legacy stock availability outweigh performance and packaging needs. |
| 74HC4051PW,118 | Same SSOP20 package; lower RON (60 Ω @ 4.5 V); narrower supply range (2–10 V); faster switching (tON/tOFF < 40 ns) | Better for battery-powered or high-speed multiplexing; incompatible with 12 V or dual-supply analog rails | Select 74HC4051PW,118 when speed and on-resistance are prioritized over supply flexibility and bipolar operation. |
Compared with CD4051BE and 74HC4051PW,118, the HEF4051BTS,118 uniquely balances wide supply tolerance (3–15 V), robust industrial temperature range, SSOP20 compactness, and proven reliability in sensor front-ends - making it optimal for mixed-voltage, space-constrained, and long-lifecycle embedded systems.
Availability
HEF4051BTS,118 is available at Aetrix Electronics and suitable for industrial automation, automotive diagnostics, and medical instrumentation requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for HEF4051BTS,118 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
NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT applications, with core expertise in analog, mixed-signal, and high-reliability IC design.
The HEF4051BTS,118 belongs to NXP's legacy HEF4000 logic family, engineered specifically for robust analog signal routing in harsh industrial environments where supply flexibility, thermal stability, and latch-up immunity are critical.
FAQ
What is the maximum analog signal voltage range supported by HEF4051BTS,118?
The HEF4051BTS,118 supports analog input signals from VEE to VCC. With VCC = 15 V and VEE = 0 V, the full range is 0–15 V. In dual-supply mode (e.g., VCC = +5 V, VEE = −5 V), it handles ±5 V signals. Operation outside these bounds risks damage or undefined behavior. Always ensure signal voltages stay within the supply rails for reliable HEF4051BTS,118 performance.
Does HEF4051BTS,118 include built-in ESD protection?
Yes, the HEF4051BTS,118 meets JESD22-A114F Human Body Model (HBM) ESD rating of >2 kV. This is validated per NXP's qualification testing and applies to all pins including Y0–Y7, Z, and control inputs. No external TVS diodes are required for basic board-level ESD immunity, though system-level protection may still be needed per IEC 61000-4-2. The HEF4051BTS,118 datasheet confirms this rating in Section 15.3.
Can HEF4051BTS,118 operate with a 3.3 V supply?
Yes, HEF4051BTS,118 is fully specified down to 3 V supply voltage. At VCC = 3.3 V, RON increases to ~220 Ω (vs. 120 Ω at 10 V), and switching speed slows slightly, but all logic thresholds and analog functionality remain guaranteed across −40 °C to +85 °C. This makes HEF4051BTS,118 compatible with modern 3.3 V microcontrollers while retaining backward compatibility with 5 V and 12 V systems.
Is HEF4051BTS,118 pin-compatible with CD4051B?
No, HEF4051BTS,118 is not pin-compatible with CD4051B. While both are 8-channel analog multiplexers, CD4051B uses a 16-pin DIP or SOIC package with different pin assignments (e.g., Z on pin 3, INH on pin 5). HEF4051BTS,118 uses a 20-pin SSOP package with Z on pin 10 and INH on pin 1. Direct replacement requires PCB redesign. Always verify pin mapping using the HEF4051BTS,118 datasheet Figure 4 before substitution.
What is the typical charge injection of HEF4051BTS,118 and why does it matter?
The typical charge injection of HEF4051BTS,118 is less than 5 pC. This parameter quantifies the transient voltage glitch injected onto the Z terminal during channel switching. In sample-and-hold or integrator circuits, excessive charge injection causes settling errors and measurement drift. At <5 pC, HEF4051BTS,118 enables accurate DC-coupled measurements in precision data acquisition - a key specification confirmed in NXP's HEF4051BTS,118 product data sheet Section 9.
HEF4051BTS,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- *
- Packaging:
- Bulk
- Product Status:
- Active
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- -
- Number of Circuits:
- -
- On-State Resistance (Max):
- -
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- -
- -3db Bandwidth:
- -
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- -
- Current - Leakage (IS(off)) (Max):
- -
- Crosstalk:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
HEF4051BTS,118 FAQ
1.How can I place an order for HEF4051BTS,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for HEF4051BTS,118 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 HEF4051BTS,118 reliable?
The price and inventory of HEF4051BTS,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HEF4051BTS,118 is usually 5 days.
3.What payment methods are accepted for HEF4051BTS,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HEF4051BTS,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HEF4051BTS,118?
HEF4051BTS,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HEF4051BTS,118 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 HEF4051BTS,118?
For technical support, including HEF4051BTS,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HEF4051BTS,118 requirements.
6.How does Aetrix verify that HEF4051BTS,118 is sourced from the original manufacturer or authorized distributors?
All HEF4051BTS,118 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 HEF4051BTS,118 meets industry standards.
7.What is the process for return or replacement of HEF4051BTS,118?
All HEF4051BTS,118 units undergo pre-shipment inspection (PSI). If there is an issue with HEF4051BTS,118, 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 HEF4051BTS,118 part is unused and in its original packaging.
Return procedure for HEF4051BTS,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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