CD4097BM - 8:1 CMOS Analog Multiplexer | Texas Instruments
부품 번호: CD4097BM ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $0.3504 | $0.35 |
| 10 | $0.3504 | $3.50 |
| 100 | $0.3504 | $35.04 |
| 500 | $0.3504 | $175.20 |
| 1,000 | $0.3504 | $350.40 |
| 3,000 | $0.3504 | $1,051.20 |
CD4097BM 개요
A CMOS analog multiplexer is an analog switch controlled by digital logic that connects one common terminal to one selected input or output terminal. The CD4097B family belongs to the CD4000B CMOS logic series and can operate as either a multiplexer or demultiplexer, depending on how the common and channel terminals are connected.
Verified device features include low on impedance, low off leakage current, internal binary address decoding, and relatively constant on resistance over the applied signal range. The manufacturer describes the CD4097B as a 20 V, 8:1 differential, one-channel analog multiplexer. The M suffix identifies the listed 24-SOIC ordering variant.
The device uses three address inputs to select one of eight channels. In multiplex mode, the selected channel terminal connects to the common terminal; in demultiplex mode, the common terminal becomes the source and the selected channel terminal receives the signal. This arrangement allows a microcontroller or counter to address sensors, measurement inputs, or outputs without a large bank of discrete switches.
Typical uses include sensor selection, instrumentation, test and measurement routing, data acquisition, and industrial control. Because the switch path is bidirectional, engineers should verify voltage, current, leakage, and timing limits for the complete signal path. The manufacturer documentation also provides the authoritative pin configuration and electrical limits.
For new layouts, place the CD4097BM close to the source and destination circuitry, route the common and selected-channel traces as impedance-sensitive analog nets, and provide adequate bypassing around the supply pins. This page combines verified manufacturer and distributor information with practical routing guidance and sourcing context.
드롭인 대체품: CD4097BM — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: CD4097BM (동일 폼 팩터 및 풋프린트) — 차이점: Address Decoding, Mounting Type, Number of Channels, Package, Product Type.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
CD4097BMG4
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
CD4097BME4
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
CD4097BM96
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
CD4097BF
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
CD4097BE
✅ 드롭인✓ 재고 있음
가격 문의
데이터시트 보기 →CD4097BM 사양
| Product Type | 8:1 differential CMOS analog multiplexer |
| Number of Channels | 8 channels |
| Supply Voltage Range | 3 V to 20 V |
| Maximum Supply Voltage | 20 V |
| On Resistance | 240 ohm |
| Typical On Resistance | 125 ohm |
| Typical On Resistance at VDD - VSS = 15 V | 5 ohm |
| Typical Power Dissipation | 0.2 uW at VDD - VSS = 10 V |
| Address Inputs | 3 binary address inputs |
| Address Decoding | Internal binary address decoding |
| Signal Path Type | Bidirectional switch path |
| 패키지 | 24-SOIC |
| 실장 유형 | Surface mount |
| RoHS 상태 | Compliant |
| REACH Status | Compliant |
CD4097BM 핀 구성
| 핀 1 | Y0 — Channel 0 terminal |
| 핀 2 | Y2 — Channel 2 terminal |
| 핀 3 | Y1 — Channel 1 terminal |
| 핀 4 | Y3 — Channel 3 terminal |
| 핀 5 | Y4 — Channel 4 terminal |
| 핀 6 | STROBE — Strobe input for latch and inhibit control |
| 핀 7 | INH — Inhibit input |
| 핀 8 | VDD — Positive supply terminal |
| 핀 9 | A0 — Address input 0 |
| 핀 10 | A1 — Address input 1 |
| 핀 11 | A2 — Address input 2 |
| 핀 12 | VSS — Negative supply terminal |
| 핀 13 | Y7 — Channel 7 terminal |
| 핀 14 | Y6 — Channel 6 terminal |
| 핀 15 | Y5 — Channel 5 terminal |
| 핀 16 | Y4_COMMON — Common channel 4 terminal |
| 핀 17 | Y3_COMMON — Common channel 3 terminal |
| 핀 18 | Y2_COMMON — Common channel 2 terminal |
| 핀 19 | Y1_COMMON — Common channel 1 terminal |
| 핀 20 | Y0_COMMON — Common channel 0 terminal |
| 핀 21 | Z — Common terminal |
| 핀 22 | Y7_COMMON — Common channel 7 terminal |
| 핀 23 | Y6_COMMON — Common channel 6 terminal |
| 핀 24 | Y5_COMMON — Common channel 5 terminal |
일반적인 애플리케이션
CD4097BM 적합 용도: 6 애플리케이션s: Multichannel Sensor Acquisition, Test and Measurement Signal Routing, Industrial Control Signal Distribution, Data Acquisition Front End, Audio and Communication Signal Switching, Educational and Prototype Signal Selector.
Multichannel Sensor Acquisition
The CD4097BM is useful when a data-acquisition board must select among eight analog sensors with a common measurement amplifier. Its three address inputs and internal binary decoding let a microcontroller choose one channel without external logic, while the 24-SOIC package keeps the routing stage compact. The specified 240 ohm on resistance should be checked against sensor impedance, amplifier input bias current, and settling requirements. Keep sensor traces short, bypass the supply locally, and allow the control inputs to settle before the conversion so residual charge on the switched node does not distort the selected measurement.
추천
Test and Measurement Signal Routing
The CD4097BM can route one instrument channel across eight test points, reducing the number of external relays and manual selector switches in a compact fixture. Internal address decoding simplifies control from a microcontroller, counter, or test sequencer, and the 240 ohm specified on resistance may be acceptable for high-impedance sensing and control lines. Verify signal bandwidth, capacitance, leakage, and settling time for the selected measurement. Route the common terminal as a compact analog node and place the multiplexer near the connector or sensor array to minimize interference and trace resistance.
추천
Industrial Control Signal Distribution
The CD4097BM can distribute a command or reference signal to one of eight controlled channels when the system requires compact digital addressing rather than a mechanical rotary switch. Its internal decoder accepts three select bits, and the analog switch path can operate bidirectionally as required by the architecture. The 20 V device rating supports compatible industrial supply architectures, although the engineer must confirm signal and control limits for the exact operating conditions. Keep high-current loads off the switch unless the selected path is explicitly rated, and provide local supply bypassing for predictable switching behavior.
추천
Data Acquisition Front End
An eight-channel CD4097BM front end can expand the number of analog inputs handled by one ADC and one processing chain. Internal address decoding reduces external component count, and the 24-SOIC package is appropriate for compact instrumentation. The main design tradeoff is the 240 ohm specified on resistance, which combines with input leakage and settling capacitance to influence accuracy and acquisition time. Use high-impedance buffers where required, establish the required acquisition time before sampling, and keep the analog routing loop small to reduce susceptibility to coupled noise.
추천
Audio and Communication Signal Switching
The CD4097BM can route low-level analog signals among eight sources when a communication or audio system requires programmable channel selection. Its address decoding allows software control of the source path, and its bidirectional switch behavior supports both routing and distribution arrangements. Because the verified on-resistance rating is 240 ohm, the design must account for insertion loss, source impedance, and loaded signal level rather than treating the part as an ideal switch. Keep routing traces short and away from switching-node and digital-address lines, and verify whether the actual audio bandwidth and distortion objectives require a lower-resistance switch.
추천
Educational and Prototype Signal Selector
The CD4097BM is approachable for instrumentation and teaching applications because three address lines select one of eight channels using internal decoding. It replaces a large rotary switch or a manually patched set of connections with programmable routing while retaining a standard 24-SOIC footprint. Designers should add test points and clearly label the common and selected terminals to reduce setup errors. Verify source impedance and output loading because the 240 ohm on resistance can create measurable voltage division, and use a buffer stage when the next device has a low input impedance.
추천
추천 제품 요약
엔지니어링 참조 데이터: CD4097BM — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | CD4097BMG4 | CD4097BME4 | CD4097BM96 | CD4097BF | CD4097BE |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 24-SOIC | 24-SOIC | 24-SOIC | 24-SOIC | 24-SOIC per cross-reference classification; CDIP identified in a separate search snippet | 24-SOIC |
| Function | 8:1 differential CMOS analog multiplexer | CD4097BM family analog multiplexer | CD4097B family analog multiplexer | CD4097BM family analog multiplexer | Analog multiplexer with consistent performance and functionality | CD4097B family analog multiplexer |
| Number of Channels | 8 channels | 8 channels | 8 channels | 8 channels | 8 channels | 8 channels |
주요 차별점
- Provides eight-way routing with integrated decoding (vs Discrete eight-switch analog network)
- Supports both multiplex and demultiplex operation (vs Unidirectional multiplexer)
- Uses a compact 24-SOIC package (vs CD4097BF CDIP listing)
- Low on impedance is maintained across the applied signal range (vs Ideal-switch assumption)
설계 노트
Do not treat the 240 ohm on-resistance figure as a universal value. The indexed data also lists 125 ohm typical and 5 ohm typical at VDD - VSS = 15 V, so the design must account for the actual supply, signal amplitude, and test conditions. Confirm the selected channel's settling time before sampling, especially when driving a high-gain amplifier or sampling a fast ADC.
Place the CD4097BM close to the common and selected-channel signal paths. Keep the address lines away from sensitive analog nets where possible, use a solid ground reference, and place the supply bypass capacitor at the device's VDD and VSS pins. Short analog traces reduce parasitic resistance and capacitance while preserving the switching response expected from the 24-SOIC device.
The multiplexer introduces resistance, leakage, and finite switching delay into every selected path. For high-frequency or precision acquisition, estimate the RC settling time from the 240 ohm maximum on resistance and total node capacitance, then compare it with the converter's acquisition window. Use a unity-gain buffer when source impedance, switch resistance, or ADC sampling capacitor interaction would otherwise create an unacceptable divider.
Use the manufacturer's specified supply range and ensure that address, inhibit, and strobe logic levels remain valid across the complete operating range. The typical power-dissipation figure of 0.2 uW at VDD - VSS = 10 V is a device-level indication, not a substitute for checking dynamic control-current and external-load behavior. Decouple the supply locally to prevent address transitions from modulating the analog signal path.
규정 준수 정보
RoHS and REACH compliance are supported by the indexed CD4097BM and CD4097BM96 comparison. The supplied data does not establish AEC-Q100 qualification, lead-free status, halogen-free status, or a conflict-minerals declaration.
