CD74HC4351ME4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
CD74HC4351ME4 is a high-speed CMOS 8-channel single-ended analog multiplexer/demultiplexer from Texas Instruments with 73 dB off-state isolation and 2 V to 10 V supply range in a 20-pin SOIC package. Designed for analog signal routing in measurement and audio systems. From $1.80 in stock, worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- CD74HC4351ME4 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.6262(MOQ 1000)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of CD74HC4351ME4?
- 8-channel single-ended analog multiplexer/demultiplexer with 73 dB off-state isolation for clean signal selection
- Wide supply voltage range of 2 V to 10 V (VCC-VEE) enabling use in both 3.3 V digital and ±5 V analog systems
- High-speed CMOS switching with low on-resistance supporting audio, data acquisition, and test equipment signal routing
- 20-pin SOIC (R-PDSO-G20) package with RoHS-compliant construction and negative supply down to -4.5 V for bipolar analog signals
What is CD74HC4351ME4 used for?
The CD74HC4351ME4 is used in analog signal routing circuits for data acquisition systems, audio switching matrices, and test instrumentation where 8 analog channels must be multiplexed to a single ADC or signal path. Its 73 dB off-state isolation prevents channel crosstalk in precision measurement applications such as multi-channel sensor readout and automated test equipment. The wide 2 V to 10 V supply range and negative supply support make it suitable for both single-supply digital systems and split-supply analog signal chain designs.
What are the specifications of CD74HC4351ME4?
| YTEOL | 0 |
| Additional Feature | ALSO OPERATES AT 2V TO 10V (VCC-VEE) SUPPLY |
| Analog IC - Other Type | SINGLE-ENDED MULTIPLEXER |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e4 |
| Neg Supply Voltage-Nom (Vsup) | -4.5 V |
| Normal Position | NO |
| Number of Channels | 8 |
| Number of Functions | 1 |
| Off-state Isolation-Nom | 73dB |
| On-state Resistance Match-Nom | 10Ω |
| On-state Resistance-Max (Ron) | 240Ω |
| Output | SEPARATE OUTPUT |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP20,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Signal Current-Max | 0.025A |
| Supply Current-Max (Isup) | 0.16mA |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 4.5V |
| Surface Mount | YES |
| Switch-off Time-Max | 375ns |
| Switch-on Time-Max | 450ns |
| Switching | BREAK-BEFORE-MAKE |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| HTS Code | 8542.39.00.60 |
Where can I find the CD74HC4351ME4 datasheet?
CD74HC4351ME4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD74HC4351ME4?
Compatible alternatives and drop-in replacements for CD74HC4351ME4:
Frequently Asked Questions
How many analog channels can the CD74HC4351ME4 multiplex, and what is its off-state isolation performance?
The CD74HC4351ME4 can select from 8 analog input channels and route them to a single output, with a nominal off-state isolation of 73 dB. This 73 dB isolation means unselected channels contribute less than 0.02% signal feedthrough to the output, making it suitable for 12-bit and 14-bit ADC front-end multiplexing where channel interference would otherwise degrade measurement accuracy.
Over what supply voltage range does the CD74HC4351ME4 operate, and how does this support use in mixed 3.3 V and ±5 V analog systems?
The CD74HC4351ME4 operates from 2 V to 10 V (VCC-VEE), including support for a negative supply down to -4.5 V. This range allows the device to switch bipolar analog signals up to ±4.5 V in a split ±5 V supply system while also functioning at 3.3 V or 5 V single-supply voltage levels, covering both digital control interfaces and analog signal chain requirements in the same IC.
In a multi-channel sensor data acquisition system, why would the CD74HC4351ME4 be chosen over discrete relay-based channel switching?
The CD74HC4351ME4 switches between 8 analog channels in under 100 ns using CMOS logic control, compared to relay switching times of 1 ms to 10 ms, enabling acquisition rates orders of magnitude faster in automated data logging. It also eliminates relay contact bounce, reduces BOM cost, and requires no drive current beyond CMOS logic levels, simplifying the multiplexer control circuit in ADC front-end designs.
Can the CD74HC4351ME4 operate as a demultiplexer, and what does this enable in an analog output distribution circuit?
Yes, the CD74HC4351ME4 operates bidirectionally as either an 8-channel multiplexer or demultiplexer, allowing a single DAC output to be routed to 1 of 8 analog outputs sequentially. This demultiplexer mode is used in multi-channel waveform generation and test signal distribution systems where a single 73 dB isolated analog source needs to drive multiple loads without requiring 8 separate DACs.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1000+ | $0.8383 | $838.30 |
| 10000+ | $0.7474 | $7474.00 |
| 100000+ | $0.6262 | $62620.00 |
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