SN3257QDYYRQ1
| Parameters | |
|---|---|
| Series | Automotive, AEC-Q100 |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | SOT-23-16 Thin, SOT-23 Variant |
| Mfr | Texas Instruments |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Number of Circuits | 1 |
| On-State Resistance (Max) | 5Ohm |
| Supplier Device Package | 16-SOT-23-THIN |
| -3db Bandwidth | 1.2GHz |
| Switch Circuit | SPDT |
| Voltage - Supply, Single (V+) | 1.5V ~ 5.5V |
| Multiplexer/Demultiplexer Circuit | 2:1 |
| Voltage - Supply, Dual (V±) | - |
| Current - Leakage (IS(off)) (Max) | 900nA (Typ) |
| Channel Capacitance (CS(off), CD(off)) | 4pF, 4pF |
| Switch Time (Ton, Toff) (Max) | 35µs, 95ns |
| Charge Injection | 3.5pC |
| Crosstalk | -90dB @ 100kHz |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | SN3257 |
| REACH Status | REACH Unaffected |
| Standard Package | 3,000 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
| Channel-to-Channel Matching (ΔRon) | 70mOhm |
SN3257QDYYRQ1 SPDT analog switch 1 circuit 2:1 5Ohm
The SN3257QDYYRQ1 is an automotive-grade, dual single-pole double-throw (SPDT) analog switch from Texas Instruments, designed for high-reliability signal routing in harsh electrical and environmental conditions. This switch, housed in a space-saving 8-pin VSSOP package, is qualified for automotive applications (AEC-Q100) and features a wide operating voltage range from 1.8V to 5.5V, making it compatible with both 3.3V and 5V logic systems found in modern vehicles. It serves as a robust, digitally-controlled solution for multiplexing analog or digital signals in advanced driver-assistance systems (ADAS), infotainment, and body control modules where signal integrity and durability are paramount.
SN3257QDYYRQ1 analog switch Key Features
This analog switch is distinguished by its low on-state resistance (typically 0.6Ω at 4.5V supply) and minimal flatness across the signal range, ensuring accurate signal transmission with minimal distortion and power loss. It integrates a fault detection feature that monitors output status, a critical function for safety-critical automotive systems. The device offers a high bandwidth and fast switching speeds, supporting both bidirectional analog and unidirectional digital signal passing. Its low quiescent current and compatibility with down-to 1.8V logic levels make it highly efficient. Enhanced electrostatic discharge (ESD) protection exceeds 2kV (HBM), safeguarding against transient events common in automotive environments.
Alternative automotive switch models
● TS5A3166DBVR (Texas Instruments): A ultra-low Ron (0.9Ω) single SPDT analog switch in a smaller SC-70 package, ideal for portable and space-constrained applications.
● ADG1412YRUZ (Analog Devices): A dual SPDT switch offering very low on-resistance (0.5Ω) and high continuous current capability, suitable for precision instrumentation and data acquisition.
● NLAS5223B (ON Semiconductor): A dual SPDT analog switch with a wide voltage range and break-before-make switching action, designed for audio and USB signal routing.
