The ISO7240, ISO7241 and ISO7242 are quad-channel digital isolators with multiple channel configurations and output enable functions. These devices have logic input and output buffers separated by TI’s silicon dioxide (SiO₂) isolation barrier. Used in conjunction with isolated power supplies, these devices block high voltage, isolate grounds, and prevent noise currents from entering the local ground and interfering with or damaging sensitive circuitry.

The ISO7240 has all four channels in the same direction while the ISO7241 has three channels the same direction and one channel in opposition. The ISO7242 has two channels in each direction.

The C option devices have TTL input thresholds and a noise-filter at the input that prevents transient pulses from being passed to the output of the device. The M option devices have CMOS V_CC/2 input thresholds and do not have the input noise-filter or the additional propagation delay.

The ISO7240CF has an input disable function on pin 7, and a selectable high or low failsafe-output function with the CTRL pin (pin 10). The failsafe-output is a logic high when a logic-high is placed on the CTRL pin or it is left unconnected. If a logic-low signal is applied to the CTRL pin, the failsafe-output becomes a logic-low output state. The ISO7240CF input disable function prevents data from being passed across the isolation barrier to the output. When the inputs are disabled, the outputs are set by the CTRL pin.

These devices may be powered from either 3.3-V or 5-V supplies on either side in any 3.3-V / 3.3-V, 5-V / 5-V, 5-V / 3.3-V, or 3.3-V / 5-V combination. Note that the signal input pins are 5-V tolerant regardless of the voltage supply level being used.

These devices are characterized for operation over the ambient temperature range of –40°C to 125°C.

• Qualified for Automotive Applications
• Selectable Failsafe Output (ISO7240CF)
• 25 and 150-Mbps Signaling Rate Options
  • Low Channel-to-Channel Output Skew; 1 ns Max
  • Low Pulse-Width Distortion (PWD); 2 ns Max
  • Low Jitter Content; 1 ns Typ at 150 Mbps
• Typical 25-Year Life at Rated Working Voltage (see application note SLLA197 and )
• 4000-Vpeak Isolation, 560-Vpeak VIORM
  • UL 1577 , IEC 60747-5-2 (VDE 0884, Rev 2), IEC 61010-1, IEC 60950-1 and CSA Approved
• 4 kV ESD Protection
• Operate With 3.3-V or 5-V Supplies
• High Electromagnetic Immunity (see application report SLLA181)
• –40°C to 125°C Operating Range

• Integrated isolated power
• No
• Number of channels (#)
• 4
• Forward/reverse channels
• 2 forward / 2 reverse
• Isolation rating (Vrms)
• 2500
• Data rate (Max) (Mbps)
• 25
• Rating
• Automotive
• Surge voltage capability (Vpk)
• 4000
• Current consumption per channel (DC) (Typ) (mA)
• 3
• Operating temperature range (C)
• -40 to 125
• Default output
• High
• Supply voltage (Max) (V)
• 5
• Supply voltage (Min) (V)
• 3.3
• Propagation delay (Typ) (ns)
• 35

ISO7242C-Q1的完整型号有：ISO7242CQDWRQ1，以下是这些产品的关键参数及官网采购报价：

ISO7242CQDWRQ1，工作温度：-40 to 125，封装：SOIC (DW)-16，包装数量MPQ：2000个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：NIPDAU，TI官网ISO7242CQDWRQ1的批量USD价格：2.843（1000+）

DIGI-ISO-EVM — Universal digital isolator evaluation module

DIGI-ISO-EVM 是一个评估模块，用于评估 TI 采用以下五种不同封装的任何单通道、双通道、三通道、四通道或六通道数字隔离器器件：8 引脚 NB SOIC (D)、8 引脚 WB SOIC (DWV)、16 引脚 WB SOIC (DW)、16 引脚 Ultra WB SOIC (DWW) 和 16 引脚 QSOP (DBQ) 封装。此 EVM 具有足够的 Berg 引脚选项，支持使用超少的外部元件来评估相应器件。

ISO723X724XEVM — ISO723X724XEVM 评估模块

ISO723X724X 评估模块 (EVM) 支持对三路和四路数字隔离器的快速参数评估。EVM 将与焊接在电路板上的 ISO7241C 一起提供。如果需要其它器件，请从 www.ti.com.cn 订购样片。如果您无法拆除和安装器件，请通过此页链接联系技术支持。此 EVM 专门用于与 ISO7240C、ISO7241C、ISO7242C、ISO7240M、ISO7241M、ISO7242M (SLLS868F)、ISO7240A、ISO7241A、ISO7242A (SLLS905)、ISO7230A、ISO7231A (SLLS906) 和 (...)

ISO7242 IBIS Model (Rev. D)

此 TI 验证设计可提供适用于汽车电池组监测应用的原理、组件选择、TINA-TI 仿真、验证和测量性能、Altium 原理图、PCB 布局。此设计采用通过汽车 AEC-Q100 认证的 12 位、4 通道、1Msps SAR ADC ADS7950-Q1 及隔离式系统硬件设计。

这项具有四线分流电阻器的隔离式输入设计非常适合使用高低电压汽车电池组的此类应用。它可以用于监测电池组电流（从 -5A 到 +5A）和极高电压（高达 750V）。

有关输入和参考驱动器的 TINA 仿真可验证设计解决方案和组件选择，而测量的结果可证明精密设计的性能。