ISO1540D vs ADUM1251ARZ Comparison
Detailed side-by-side comparison of ISO1540D by Texas Instruments and ADUM1251ARZ by Analog Devices. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Specification Comparison
| Parameter | ISO1540D | ADUM1251ARZ |
|---|---|---|
| Brand | Texas Instruments | Analog Devices |
| Category | Interface ICs | Interface ICs |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.20 | $4.23 |
| Isolation Type | Bidirectional I2C isolator | — |
| Number of Channels | 2 (SCL, SDA) | 2 |
| Isolation Voltage | 2500 Vrms | 2500 Vrms |
| Data Rate | 1 Mbps (1 MHz I2C fast-mode) | 1 Mbps |
| CMTI | 25 kV/us | — |
| Supply Voltage Range | 3 V to 5.5 V | 3 V to 5.5 V |
| Propagation Delay | 67 ns (typical) | 162 ns |
| Side 1 Sink Current | 3.5 mA | — |
| Side 2 Sink Current | 35 mA | — |
| Output Type | Open-drain | — |
| Operating Temperature | -40C to +125C | — |
| Package | 8-SOIC (0.154in, 3.90mm width) | 8-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount | Surface Mount |
| Isolation Technology | Capacitive, SiO2 barrier | — |
| RoHS Status | Compliant | Compliant |
| Common Mode Transient Immunity | — | 25 kV/µs |
| Operating Temperature Range | — | -40°C to +125°C |
| Interface Type | — | I2C |
| Hot-Swap Capable | — | Yes |
| Bidirectional Channels | — | Yes |
| Lead-Free | — | Yes |
| Number of Pins | — | 8 |