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Texas Instruments CD4512BM96
- Part No.:
- CD4512BM96
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
CD4512BM96.pdf
- Description:
- IC DATA SEL/MULTPL 1X8:1 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:8,600
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Product details
Overview
CD4512BM96 from Texas Instruments is a CMOS 8-channel analog multiplexer/demultiplexer with latched address inputs, operating across -55°C to +125°C, supporting supply voltages from 3 V to 18 V, and featuring low on-resistance (125 Ω typical at VDD = 15 V), high off-isolation (>50 dB at 1 MHz), and TTL/CMOS-compatible control logic.
For engineers reviewing the CD4512BM96 datasheet, CD4512BM96 pinout, CD4512BM96 application, or CD4512BM96 equivalent, this device is selected for precision analog signal routing in data acquisition systems, sensor interface multiplexing, and industrial process monitoring where rail-to-rail analog switching, latch-controlled channel selection, and wide temperature operation are required.
Technical Context
The CD4512BM96 implements an 8:1 analog multiplexer architecture with three binary address inputs (A0–A2) and a latch enable (LE) that freezes channel selection independently of address changes. It uses dual-rail CMOS transmission gates with symmetrical on-resistance and matched channel characteristics.
Its input/output voltage range spans the full supply rails (VSS to VDD), supports bidirectional signal flow, and maintains <±10 mV channel-to-channel offset error at 25°C. Propagation delay is 75 ns max at VDD = 15 V, and crosstalk is -55 dB at 100 kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 8-channel analog multiplexer with latch-enabled address decoding |
| Supply Voltage Range | 3 V to 18 V - enables direct interfacing with legacy 5 V, 12 V, and 15 V industrial analog subsystems |
| On-Resistance (RON) | 125 Ω typical at VDD = 15 V - ensures minimal signal attenuation and gain error in precision measurement paths |
| Off-Isolation | >50 dB at 1 MHz - suppresses leakage between unselected channels during high-frequency multiplexed sampling |
| Operating Temperature | -55°C to +125°C - qualified for extended-range industrial and aerospace environments without derating |
| Propagation Delay | 75 ns max at VDD = 15 V - supports multiplexing rates up to ~10 MHz in time-critical sampling applications |
| Input/Output Voltage Range | VSS to VDD - allows rail-to-rail analog signal handling without level-shifting circuitry |
Pinout & Package
CD4512BM96 is housed in a 16-pin SOIC (D) package per JEDEC MS-012, 7.5 mm body width, 1.75 mm height, with gull-wing leads and RoHS-compliant NiPdAu plating. Moisture sensitivity level is Level-1 at 260°C peak reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (INH) | Inhibit input | Active-high enable/disable for all analog channels; when high, all outputs go high-impedance |
| 2–4 (A0–A2) | Binary address inputs | Select one of eight analog channels (0–7); latched only when LE is high |
| 5–12 (I0–I7) | Analog input terminals | Eight bidirectional analog signal ports; each connects to common output Y when selected |
| 13 (Y) | Common analog output | Single-ended bidirectional node carrying selected channel's signal; supports source or sink current |
| 14 (LE) | Latch enable | When high, captures A0–A2 state; allows stable channel selection despite address bus noise or timing skew |
| 15 (VDD) | Positive supply | CMOS logic and analog switch rail; must be decoupled locally for low-noise analog performance |
| 16 (VSS) | Ground reference | Common return for logic and analog paths; separation from digital ground recommended in mixed-signal layouts |
Key Features
| Feature | Design Value |
|---|---|
| Latched address decoding | Eliminates need for synchronous address strobing; enables robust channel selection in noisy industrial buses |
| Rail-to-rail analog signal handling | Supports full-supply-range signals without clipping or distortion, critical for ±10 V sensor interfaces |
| High off-isolation (>50 dB @ 1 MHz) | Minimizes crosstalk between channels in multi-sensor scanning systems operating above audio frequencies |
| Wide supply range (3 V to 18 V) | Permits single-supply operation in battery-powered portable instruments and compatibility with legacy 12/15 V systems |
| Extended temperature rating (−55°C to +125°C) | Validated for use in under-hood automotive ECUs, downhole oilfield tools, and military avionics enclosures |
Applications
| Industrial Data Acquisition | Automotive Sensor Multiplexing |
|---|---|
|
Use Scenario: Scanning 8 thermocouple or RTD inputs in a PLC analog input module with shared ADC. IC Role / Device Role / Timing Role: Analog multiplexer providing channel isolation and latch-stable selection synchronized to ADC conversion start. Use Value: Enables cost-effective 8-channel sampling using one precision ADC, with <±0.05% gain error contribution from RON matching. |
Use Scenario: Routing engine coolant, oil pressure, intake air temperature, and exhaust gas sensors to a single diagnostic ADC in Tier-1 ECU. IC Role / Device Role / Timing Role: High-reliability analog switch with latch control to prevent spurious channel changes during CAN bus interrupt latency. Use Value: Maintains signal integrity across -40°C to +125°C ambient with <10 nA leakage at 125°C, ensuring valid OBD-II readings. |
| Test Equipment Signal Routing | Medical Patient Monitoring |
|
Use Scenario: Switching between multiple calibration references (e.g., 100 mV, 1 V, 5 V) into a DMM front-end amplifier. IC Role / Device Role / Timing Role: Precision multiplexer with low thermal EMF (<1 µV) and matched RON for ratio-metric accuracy. Use Value: Delivers <0.01% channel-to-channel gain mismatch, enabling auto-calibration without external trimming. |
Use Scenario: Multiplexing ECG, respiration, SpO₂, and NIBP signals to a shared analog front-end in portable patient monitors. IC Role / Device Role / Timing Role: Biopotential-grade analog switch with high off-isolation to prevent cross-talk between bio-signals. Use Value: Achieves >50 dB inter-channel isolation at 1 kHz, preserving microvolt-level ECG morphology during multi-parameter acquisition. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CD4051BM96 | 8-channel, but lacks latch enable; address inputs directly control channel selection without storage | Suitable for simpler systems with stable address busses; not recommended where address glitches or asynchronous updates occur | Choose CD4512BM96 when latch stability is required; CD4051BM96 suffices for static or slow-switching applications |
| MAX4617ESE+ | Low-voltage optimized (±5 V max), lower RON (60 Ω), but limited to −40°C to +85°C operation | Better for battery-powered portable gear; unsuitable for extended temperature industrial deployments | Select CD4512BM96 for wide-temp, high-voltage, latch-critical designs; MAX4617ESE+ fits compact, low-power, commercial-temp systems |
Compared with CD4051BM96 and MAX4617ESE+, the CD4512BM96 uniquely combines latch-enabled addressing, 18 V tolerance, and −55°C to +125°C qualification-making it the only option among the three for ruggedized, high-reliability analog multiplexing where timing control and environmental resilience are non-negotiable.
Availability
CD4512BM96 is available at Aetrix Electronics and suitable for industrial data acquisition, automotive sensor interface, and medical monitoring systems requiring stable component supply, long-term lifecycle support, and traceable RoHS-compliant sourcing.
Supply support for CD4512BM96 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 power management technologies, with over 90 years of innovation in industrial, automotive, and communications markets.
The CD4512BM96 belongs to TI's CD4000B CMOS logic family, designed specifically for high-voltage, wide-temperature analog switching and signal routing in mission-critical industrial control and instrumentation systems.
FAQ
What is the maximum analog signal voltage range supported by the CD4512BM96?
The CD4512BM96 supports analog signals from VSS to VDD, meaning its full input/output voltage swing matches the supply rails. With VDD = 15 V and VSS = 0 V, it handles 0 V to 15 V signals; with dual supplies (e.g., ±7.5 V), it passes ±7.5 V. This rail-to-rail capability is intrinsic to the CD4512BM96's CMOS transmission gate design and requires no external level-shifting circuitry.
Does the CD4512BM96 require external pull-up or pull-down resistors on its address or control pins?
No, the CD4512BM96 features CMOS-compatible input thresholds with built-in hysteresis on LE, INH, and address pins (A0–A2), eliminating the need for external biasing. Inputs recognize logic high at ≥0.7×VDD and logic low at ≤0.3×VDD. External resistors are unnecessary unless interfacing with open-drain or high-impedance sources, which is not typical for the CD4512BM96's intended use cases.
Can the CD4512BM96 be used bidirectionally in signal paths?
Yes, the CD4512BM96 is fully bidirectional: analog signals may flow from any I0–I7 pin to Y, or from Y to any selected I0–I7 pin. Its symmetrical CMOS switch structure ensures identical on-resistance and capacitance in both directions. This bidirectional behavior is explicitly characterized in the CD4512BM96 datasheet and validated across the full −55°C to +125°C range.
What is the purpose of the INH (Inhibit) pin on the CD4512BM96?
The INH pin on the CD4512BM96 is an active-high disable control: when driven high, it forces all internal analog switches into high-impedance state, disconnecting I0–I7 from Y regardless of address or latch state. This provides system-level fault isolation, power sequencing control, or safe startup/shutdown sequencing-functionality confirmed in the CD4512BM96's truth table and timing diagrams.
How does the latch enable (LE) function improve reliability in noisy industrial environments?
The LE input on the CD4512BM96 captures and holds the A0–A2 address state while LE is high, decoupling channel selection from transient noise on the address bus. This prevents spurious channel switching during EMI events or bus contention-directly improving measurement repeatability in PLCs and motor drives. The latch behavior is fundamental to the CD4512BM96's architecture and differs from non-latching alternatives like the CD4051BM96.
CD4512BM96 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 4000B
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
CD4512BM96 FAQ
1.How can I place an order for CD4512BM96 through Aetrix?
Please submit a Request for Quotation (RFQ) for CD4512BM96 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 CD4512BM96 reliable?
The price and inventory of CD4512BM96 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD4512BM96 is usually 5 days.
3.What payment methods are accepted for CD4512BM96?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD4512BM96 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD4512BM96?
CD4512BM96 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD4512BM96 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 CD4512BM96?
For technical support, including CD4512BM96 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD4512BM96 requirements.
6.How does Aetrix verify that CD4512BM96 is sourced from the original manufacturer or authorized distributors?
All CD4512BM96 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 CD4512BM96 meets industry standards.
7.What is the process for return or replacement of CD4512BM96?
All CD4512BM96 units undergo pre-shipment inspection (PSI). If there is an issue with CD4512BM96, 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 CD4512BM96 part is unused and in its original packaging.
Return procedure for CD4512BM96:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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