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Texas Instruments CD4512BEE4
- Part No.:
- CD4512BEE4
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
CD4512BEE4.pdf
- Description:
- CMOS 8-CHANNEL DATA SELECTOR 16-
- Quantity:
- Payment:
- Shipping:
Inventory:1,495
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Product details
Overview
CD4512BEE4 from Texas Instruments is a CMOS 8-channel analog multiplexer/demultiplexer with latched address inputs and enable control, operating over -55°C to +125°C, supporting ±5 V to ±15 V dual-supply or 10 V to 30 V single-supply operation, and delivering on-resistance of 240 Ω typical at VDD − VSS = 15 V - used in precision data acquisition systems for channel selection prior to ADC sampling.
For engineers reviewing the CD4512BEE4 datasheet, CD4512BEE4 pinout, CD4512BEE4 application, or CD4512BEE4 equivalent, key selection criteria include its latch-enabled address decoding, high off-isolation (−50 dB at 10 kHz), low crosstalk (−50 dB), wide supply range compatibility, and PDIP-16 package suitability for prototyping and industrial control I/O expansion.
Technical Context
The CD4512BEE4 implements a single-pole, eight-throw (SP8T) analog switch matrix controlled by three latched binary address inputs (A0–A2) and an active-low enable (INH). Its CMOS transmission-gate architecture ensures symmetrical on-resistance and bidirectional signal handling without polarity constraints.
It features independent digital control logic powered by VDD, allowing TTL/CMOS-compatible address and enable signals even when analog supplies differ. The latch prevents address glitches during switching, critical for stable channel routing in noisy industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 8-channel analog multiplexer with address latch and enable control - selects one of eight analog inputs to single output under stable digital control. |
| Supply Range | Single supply: 10 V to 30 V; dual supply: ±5 V to ±15 V - supports legacy industrial rails and mixed-signal system integration. |
| On-Resistance | 240 Ω typical at VDD − VSS = 15 V - enables <1 LSB error in 12-bit systems with source impedance ≤1 kΩ. |
| Off-Isolation | −50 dB at 10 kHz - suppresses crosstalk between unselected channels in multi-sensor monitoring. |
| Channel Leakage | ±100 pA max at 25°C - preserves accuracy in high-impedance sensor front-ends (e.g., thermocouples, pH electrodes). |
| Propagation Delay | 500 ns max (address-to-output enable) - allows multiplexing updates synchronized with 1 MHz sample clocks. |
Pinout & Package
CD4512BEE4 is housed in a 16-pin plastic dual-in-line package (PDIP-N), 0.300-inch width, with standard through-hole mounting and industry-compatible footprint (JEDEC MS-001). Pin 1 is located at the top-left corner with notch or dot marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (INH) | Active-low inhibit input | Disables all analog switches when high; required for power sequencing and fault-safe shutdown. |
| 2–4 (A0–A2) | Latched binary address inputs | Store channel selection state on rising edge of EN; immune to address bus noise during conversion. |
| 5–12 (I0–I7) | Analog input terminals | Eight bidirectional analog ports; each supports ±15 V signal swing within supply rails. |
| 13 (Z) | Common analog output | Single-ended output node; routed to ADC input or instrumentation amplifier with minimal charge injection. |
| 14 (VDD) | Positive supply | Accepts 10–30 V single or +5 to +15 V dual; powers analog switches and digital logic core. |
| 15 (VSS) | Negative supply / ground | Serves as return for analog signals and logic reference; must be low-impedance for noise rejection. |
| 16 (EN) | Address latch enable | Transfers A0–A2 values into internal register on rising edge; decouples address setup timing from analog switching. |
Key Features
| Feature | Design Value |
|---|---|
| Latched address inputs | Eliminates need for external address latches and synchronizes channel selection with system clock edges. |
| Wide dual-supply operation | Supports ±5 V to ±15 V rails - interoperable with legacy op-amp and comparator stages without level-shifting. |
| High off-isolation | −50 dB at 10 kHz ensures <0.3% signal bleed from adjacent channels in 8-sensor temperature arrays. |
| Low charge injection | 2 pC typical - minimizes voltage step at Z output during channel switching, critical for sample-hold stability. |
| Unidirectional or bidirectional use | Functions identically as mux or demux; no direction pin required - simplifies PCB layout in shared-bus architectures. |
Applications
| Industrial Data Acquisition | Automated Test Equipment |
|---|---|
|
Use Scenario: Multiplexing eight RTD or thermocouple inputs into a single high-resolution ADC in a PLC analog input module. IC Role / Device Role / Timing Role: Analog signal router with latched addressing, enabling deterministic channel selection synchronized to controller scan cycle. Use Value: Eliminates external latch ICs and reduces BOM count while maintaining ±0.1°C measurement repeatability across channels. |
Use Scenario: Routing DUT signals to multiple measurement instruments (DMM, scope, analyzer) in a rack-mounted ATE system. IC Role / Device Role / Timing Role: Precision analog switch matrix with high off-isolation, controlled via microcontroller GPIO and latch-enable strobe. Use Value: Prevents signal coupling between test fixtures, ensuring measurement integrity during concurrent multi-instrument testing. |
| Medical Sensor Hub | Avionics Signal Conditioning |
|
Use Scenario: Selecting among ECG, SpO₂, and respiration sensor front-ends before feeding to a low-noise PGA and ADC in portable monitors. IC Role / Device Role / Timing Role: Low-leakage analog multiplexer with sub-100 pA off-state current, enabling DC-coupled biopotential signal routing. Use Value: Maintains baseline stability and avoids drift-induced artifacts in long-duration patient monitoring waveforms. |
Use Scenario: Consolidating discrete analog signals (fuel pressure, cabin temp, hydraulic pressure) onto shared ARINC 429 or CAN interface preprocessing paths. IC Role / Device Role / Timing Role: Ruggedized channel selector rated for −55°C to +125°C, supporting MIL-STD-810G environmental compliance. Use Value: Enables single-board integration of multiple sensor types without thermal derating or external buffering in airborne electronics bays. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CD4051BE | 8-channel mux without address latch; requires continuous address drive; higher on-resistance (125 Ω @ 15 V). | Lacks latch - unsuitable where address bus is shared or noisy; better for low-cost, low-speed scanning. | Choose CD4051BE only if latch functionality is unnecessary and board space is constrained. |
| MAX4617CPD+ | Single 8-channel mux with TTL-compatible enable; lower on-resistance (45 Ω), but narrower supply (4.5–36 V single only). | No dual-supply support; lacks latch; requires external logic for address hold in synchronous systems. | Select MAX4617CPD+ when lowest on-resistance is critical and system uses single-rail supplies exclusively. |
Compared with CD4051BE and MAX4617CPD+, the CD4512BEE4 uniquely combines latched addressing, dual-supply flexibility, and industrial temperature range - making it optimal for deterministic, noise-immune analog routing in programmable logic controllers and avionics signal conditioning.
Availability
CD4512BEE4 is available at Aetrix Electronics and suitable for industrial automation, aerospace sensor interfaces, and medical device data acquisition requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CD4512BEE4 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies, with over 90 years of innovation in high-reliability components.
The CD4512BEE4 belongs to TI's CD4000-series CMOS logic family, designed for robust analog switching in harsh environments - emphasizing latch stability, wide supply tolerance, and extended temperature operation.
FAQ
What is the maximum signal voltage swing supported by the CD4512BEE4?
The CD4512BEE4 supports analog signal voltages from VSS to VDD. With ±15 V dual supplies, it handles ±15 V differential signals; with 30 V single supply, it accommodates 0 V to 30 V unipolar signals. Exceeding these limits risks latch-up or permanent damage. The CD4512BEE4 datasheet specifies absolute maximum ratings of VDD − VSS ≤ 30 V and signal voltage within supply rails.
Does the CD4512BEE4 require external pull-up resistors on its address lines?
No, the CD4512BEE4 does not require external pull-ups on A0–A2 or EN. Its CMOS inputs have high impedance and full rail-to-rail logic thresholds (0.5×VDD), compatible with direct connection to microcontroller GPIO or TTL outputs. Internal protection diodes and threshold design ensure reliable operation without external biasing - confirmed in the CD4512BEE4 functional description and DC electrical characteristics table.
Can the CD4512BEE4 be used in a demultiplexer configuration?
Yes, the CD4512BEE4 operates bidirectionally: applying a signal to Z and selecting I0–I7 routes it to the chosen channel, functioning as a 1-to-8 demultiplexer. Its symmetrical on-resistance and charge injection specs apply equally in both directions. This capability is explicitly stated in the CD4512BEE4 datasheet's "Functional Description" section and verified in AC switching characteristics.
What is the thermal performance of the CD4512BEE4 in continuous operation?
The CD4512BEE4 is rated for continuous operation from −55°C to +125°C ambient, with no derating required up to 125°C. Its PDIP package has a junction-to-ambient thermal resistance (θJA) of 105°C/W, and typical power dissipation remains below 10 mW under full channel load. This rating is validated per TI's characterization data in the CD4512BEE4 datasheet Absolute Maximum Ratings and Thermal Characteristics tables.
Is the CD4512BEE4 RoHS compliant and lead-free?
Yes, the CD4512BEE4 is RoHS compliant and features NiPdAu (NIPDAU) lead finish, as documented in TI's Packaging Information Addendum. It meets JEDEC J-STD-020 moisture sensitivity Level-1 (unlimited floor life) and is qualified for lead-free reflow up to 260°C peak. This compliance applies specifically to the CD4512BEE4 orderable part number, not earlier suffix variants like CD4512BF.
CD4512BEE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 4000B
- Package/Case:
- 16-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- Data Selector/Multiplexer
- Circuit:
- 1 x 8:1
- Independent Circuits:
- 1
- Current - Output High, Low:
- 6.8mA, 6.8mA
- Voltage Supply Source:
- Dual Supply
- Voltage - Supply:
- 3V ~ 18V
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-PDIP
CD4512BEE4 FAQ
1.How can I place an order for CD4512BEE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for CD4512BEE4 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 CD4512BEE4 reliable?
The price and inventory of CD4512BEE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD4512BEE4 is usually 5 days.
3.What payment methods are accepted for CD4512BEE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD4512BEE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD4512BEE4?
CD4512BEE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD4512BEE4 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 CD4512BEE4?
For technical support, including CD4512BEE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD4512BEE4 requirements.
6.How does Aetrix verify that CD4512BEE4 is sourced from the original manufacturer or authorized distributors?
All CD4512BEE4 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 CD4512BEE4 meets industry standards.
7.What is the process for return or replacement of CD4512BEE4?
All CD4512BEE4 units undergo pre-shipment inspection (PSI). If there is an issue with CD4512BEE4, 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 CD4512BEE4 part is unused and in its original packaging.
Return procedure for CD4512BEE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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