| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 48-TQFP |
| Mfr | Analog Devices Inc. |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Number of Circuits | 1 |
| On-State Resistance (Max) | 5.5Ohm |
| Supplier Device Package | 48-TQFP (7x7) |
| -3db Bandwidth | 18MHz |
| Switch Circuit | - |
| Voltage - Supply, Single (V+) | 1.8V ~ 5.5V |
| Multiplexer/Demultiplexer Circuit | 32:1 |
| Voltage - Supply, Dual (V±) | ±2.5V |
| Current - Leakage (IS(off)) (Max) | 250pA |
| Channel Capacitance (CS(off), CD(off)) | 13pF, 260pF |
| Switch Time (Ton, Toff) (Max) | - |
| Charge Injection | 1pC |
| Crosstalk | -72dB @ 1MHz |
| Package | Tray |
| Product Status | Active |
| Base Product Number | ADG731 |
| REACH Status | REACH Unaffected |
| Standard Package | 1 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
| Channel-to-Channel Matching (ΔRon) | - |
ADI ADG731BSUZ 32-Channel Serial-Controlled Analog Multiplexer
The ADG731BSUZ is a high-performance, monolithic CMOS analog multiplexer designed for 32-channel single-ended or dual 16-channel differential signal routing. Featuring a 3-wire SPI-compatible serial interface (SYNC, SCLK, DIN), it enables compact control of 32 inputs (S1–S32) routed to a common output (D) or 16 inputs to differential outputs. The device operates with a wide 1.8 V to 5.5 V single-supply voltage or ±2.5 V dual-supply configuration, ensuring compatibility with low-power battery-operated systems and high-voltage industrial applications. Its 4 Ω (typical) on-resistance and 0.5 Ω flatness across the signal range minimize insertion loss and distortion, while a 42 ns switching time supports high-speed data acquisition.
ADG731BSUZ Analog Multiplexer Applications
The ADG731BSUZ is widely deployed in applications requiring flexible, high-density signal routing with minimal board space. Key use cases include optical communication systems (multiplexing laser diode drivers or photodetector signals), data acquisition systems (channel selection for ADCs/DACs), audio/video switching (routing HDMI or audio streams), and battery-powered devices (low-voltage signal management in portable medical instruments). Its SPI interface simplifies integration with microcontrollers, DSPs, and FPGAs, while its low on-resistance and fast switching enable high-fidelity signal transmission in test and measurement equipment, relay replacement modules, and automatic test equipment (ATE).
Alternative signal switch Models
● TI TS3A5017DGSR: A 16-channel, 2:1 multiplexer from Texas Instruments with 2 Ω on-resistance and 1.8 V to 5.5 V operation, optimized for high-speed USB and HDMI signal routing.
● Maxim Integrated MAX4619CPE+: A 32-channel, single-supply multiplexer featuring 8 Ω on-resistance and 1.8 V to 5.5 V compatibility, ideal for low-power data acquisition systems.
● NXP NLAS4597BDFR2G: A dual 4:1 multiplexer with 1.8 V to 5.5 V support and 1 Ω on-resistance, designed for high-speed differential signaling in communication infrastructure.
● STMicroelectronics TS5A4594DBVR: A 16-channel, 1:1 multiplexer with 4 Ω on-resistance and 1.65 V to 5.5 V operation, targeting portable consumer electronics and wearable devices.