CD4052BPWR - 4:1 Differential Analog Mux 240 Ohm | Texas Instruments
MPN： CD4052BPWR ✓ 啟用中CD4052BPWR 概覽
An analog multiplexer is a digitally controlled analog switch that connects one of several input signals to a single output. Within the signal-chain hierarchy, the CD4052B sits in the analog switches and multiplexers category of power and signal management ICs, serving as a fundamental building block between sensors or signal sources and ADCs, filters, or instrumentation amplifiers.
Key features include a typical ON resistance of 240 ohms, very low OFF leakage current of approximately 100 uA class static consumption, and built-in logic-level conversion via the VEE pin, which allows CMOS or TTL-level logic inputs to control analog signals spanning the full supply range. Bidirectional signal flow supports both multiplexing and demultiplexing, and the INH input provides a high-impedance state across all channels.
The device is fabricated in CMOS technology, delivering low static power consumption and high noise immunity. Analog signal swing extends to the full supply rails, making the part suitable for rail-to-rail signal routing. The TSSOP-16 body is 1.20 mm high with a 0.65 mm lead pitch for high-density surface-mount layouts. The part is RoHS compliant and lead-free.
Typical applications include audio signal routing, data acquisition input selection, ADC front-end channel expansion, and test and measurement equipment; it is also used in automotive LIN circuits where its wide supply range is beneficial.
Design tip: never exceed the 20V absolute maximum supply, place 100 nF decoupling capacitors close to VDD/VSS, and use the INH pin to implement channel isolation or power-down states.
直接替換替代品，適用於 CD4052BPWR — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： CD4052BPWR （相同外形與佔位） — 差異在於 Logic-Level Conversion, Mounting Type, Package, Operating Temperature, Product Type.
CD4052QPWRQ1
✅ 直接替換聯絡詢價
查看資料表 →CD4052BPW
✅ 直接替換📋 參考替代品（不在目錄中）
CD74HC4052PWR
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
MC74HC4052ADTR2G
✅ 直接替換📋 參考替代品（不在目錄中）
HCF4052BM013T
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
CD4052BPWR 最大額定值與電氣特性
| 功能 | Differential 4:1 analog multiplexer/demultiplexer |
| Number of Circuits | 2 |
| 通道數 | 4:1 per circuit |
| ON Resistance (typ) | 240 ohm |
| Supply Voltage Range | 3 V to 20 V |
| Absolute Maximum Supply | 20 V |
| Control Inputs | A, B (binary) + INH (inhibit) |
| Logic-Level Conversion | Yes, via VEE pin |
| OFF Leakage Current | Very low (nA typ) |
| Signal Range | Full supply rail-to-rail (VEE to VDD) |
| Technology | CMOS |
| 工作溫度 | -55C to +125C |
| 封裝 | TSSOP-16 (PW) |
| 安裝類型 | Surface Mount |
| Package Height | 1.20 mm |
| Lead Pitch | 0.65 mm |
| RoHS 狀態 | Compliant |
CD4052BPWR 腳位配置
| 腳位 1 | Y0 — Channel Y0 input/output |
| 腳位 2 | Y2 — Channel Y2 input/output |
| 腳位 3 | COMMON Y — Common connection of Y switch |
| 腳位 4 | Y3 — Channel Y3 input/output |
| 腳位 5 | Y1 — Channel Y1 input/output |
| 腳位 6 | INH — Inhibit: high = all channels off |
| 腳位 7 | VEE — Negative analog supply for logic-level conversion |
| 腳位 8 | VSS — Ground reference |
| 腳位 9 | B — Binary control input B (MSB) |
| 腳位 10 | A — Binary control input A (LSB) |
| 腳位 11 | X3 — Channel X3 input/output |
| 腳位 12 | X0 — Channel X0 input/output |
| 腳位 13 | COMMON X — Common connection of X switch |
| 腳位 14 | X1 — Channel X1 input/output |
| 腳位 15 | X2 — Channel X2 input/output |
| 腳位 16 | VDD — Positive supply, up to 20V |
典型應用
CD4052BPWR 適用於 6 應用s: Audio Signal Routing, Data Acquisition Channel Expansion, Automotive LIN Circuits, Test and Measurement Equipment, Sensor Front-End Selection, Video and Display Signal Switching.
Audio Signal Routing
The CD4052BPWR routes differential stereo audio signals among four sources with its dual 4:1 switch pair, which matches the two-channel structure of balanced audio links. Its very low OFF leakage current prevents crosstalk between deselected inputs, while full rail-to-rail signal swing on the 240 ohm ON path accommodates line-level signals without headroom concerns at 12V or higher supplies. Placed before a preamplifier or volume stage, it adds no switching artifacts beyond a modest series resistance, and the INH pin can mute all channels instantly during source changes to avoid audible transients.
推薦
Data Acquisition Channel Expansion
In multi-channel data acquisition, the CD4052BPWR expands a single-ended or differential ADC input into four selectable channel pairs, quadrupling effective channel count at minimal cost. The 3V to 20V supply range lets it sit directly on higher-voltage analog rails, and the wide -55C to +125C operation suits industrial field equipment. Because ON resistance is 240 ohm, designers should buffer high-impedance sensor outputs or allow settling time for the RC formed with the ADC sampling capacitor before conversion, ensuring accurate acquisition of switched channels.
推薦
Automotive LIN Circuits
The CD4052B is used in automotive LIN bus circuits where its wide 3V to 20V supply range tolerates battery-line fluctuation, and the Q1-qualified CD4052QPWRQ1 drop-in variant covers AEC-Q100 requirements. The differential 4:1 structure selects between LIN signaling paths or test modes on the transceiver board. Designers should note that surge events can exceed the 20V absolute maximum in this environment; TI's E2E forum documents field damage cases, so series protection resistors or TVS clamping on the switch channels are strongly recommended in production designs.
推薦
Test and Measurement Equipment
Bench instruments and automated test equipment use the CD4052BPWR to switch differential measurement signals between four probe or fixture inputs and one measurement chain. The INH pin opens all channels to a high-impedance state, enabling safe hot-connection of fixtures without loading the circuit under test. CMOS technology draws negligible static current, keeping instrument standby power low, and the wide supply range allows signal handling from 3V logic domains up to 20V industrial signals on the same switch matrix.
推薦
Sensor Front-End Selection
Industrial and IoT sensing nodes employ the CD4052BPWR to multiplex four differential sensor pairs, such as thermocouples or bridge sensors, into a single instrumentation amplifier. The VEE pin supports bipolar analog signals around ground while logic inputs remain at CMOS or TTL levels, simplifying interfacing with 3.3V or 5V microcontrollers. Low OFF leakage preserves measurement accuracy of unselected sensors, and the 240 ohm ON resistance is negligible ahead of high-input-impedance amplifiers, making it a low-cost standard building block in condition-monitoring hardware.
推薦
Video and Display Signal Switching
For composite-video or low-speed display signal selection in legacy and industrial display systems, the CD4052BPWR's rail-to-rail analog swing and differential pair switching route signal-plus-ground pairs between four sources and one receiver. The 240 ohm ON resistance is acceptable at lower video bandwidths when source and load impedances are buffered, and its -55C to +125C range supports outdoor and automotive displays. Designers should account for the ON-resistance flatness across voltage swing to minimize differential gain and phase errors in video paths.
推薦
推薦產品摘要
工程參考資料，適用於 CD4052BPWR — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | CD4052QPWRQ1 | CD74HC4052PWR | MC74HC4052ADTR2G | HCF4052BM013T |
|---|---|---|---|---|---|
| Package | TSSOP-16 (PW) | TSSOP-16 (PW) - same | TSSOP-16 (PW) - same | TSSOP-16 - same | TSSOP-16 - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | onsemi | STMicroelectronics |
| Configuration | Dual 4:1 differential | Dual 4:1 differential | Dual 4:1 differential | Dual 4:1 differential | Dual 4:1 differential |
| Supply Voltage Range | 3 V to 20 V | 3 V to 20 V | 2 V to 6 V | 2 V to 6 V | 3 V to 20 V |
| Logic-Level Conversion (VEE) | Yes | Yes | No | No | Yes |
| Automotive Grade (AEC-Q100) | No | Yes | No | No | No |
主要差異化特點
- 20V wide supply range with VEE logic-level conversion (對比MC74HC4052ADTR2G)
- Automotive drop-in option in identical footprint (對比CD4052QPWRQ1)
- Extended -55C to +125C temperature range (對比MC74HC4052ADTR2G)
設計說明
Never exceed the 20V absolute maximum supply (VDD-VSS and VDD-VEE). In automotive LIN applications TI's E2E forum reports field failures from surge events even below nominal 15V rails; add series resistance or TVS clamping on the analog channels. Place 100 nF ceramic decoupling close to VDD/VSS, and tie VEE to VSS when negative signal handling is not required.
The 240 ohm typical ON resistance forms an RC with the load capacitance; for ADC front ends, budget settling time before conversion or buffer high-impedance sources. ON resistance also varies with signal voltage and supply, so in precision paths account for RON flatness rather than using the single typical value.
Signals must remain between VEE and VDD; driving a channel below VEE forward-biases the CMOS protection structure. Use the INH pin for channel isolation or power-down states instead of removing supply. Unused channel pins should be tied to VSS or a defined rail to avoid floating leakage paths.
合規資訊
RoHS compliant and lead-free per TI product data. AEC-Q100 not qualified - use CD4052QPWRQ1 for automotive.
