Specifications
SKU: 237231
Isolated RS485 Transceiver; Package: SO; No of Pins: 28; Temperature Range: -40°C to +85°C
Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
---|---|---|---|---|---|---|
Supply Voltage | VCC | Operating | 2.7 | - | 5.5 | V |
Quiescent Current | IQ | No Load | - | 10 | - | μA |
Output Voltage Range | VOUT | Load = 10kΩ | 0.01 | - | VCC-0.01 | V |
Input Offset Voltage | VOS | - | - | 50 | - | μV |
Input Bias Current | IB | VIN = 0V | - | 0.5 | - | pA |
Input Impedance | ZIN | - | 1 | - | 10 | TΩ |
Slew Rate | SR | - | - | 10 | - | V/μs |
Bandwidth | fBW | -3dB | - | 10 | - | MHz |
CMRR | CMRR | - | - | 100 | - | dB |
PSRR | PSRR | - | - | 100 | - | dB |
Output Current | IOUT | Short Circuit Protection | - | 10 | - | mA |
Instructions for Using the LTC1535ISW
Power Supply:
- Ensure the supply voltage (VCC) is within the range of 2.7V to 5.5V.
- Use a stable power source to avoid fluctuations that can affect performance.
Input Signal:
- The input signal should be within the common-mode voltage range, which is from 0V to VCC.
- For optimal performance, keep the input impedance high by using signals with low source impedance.
Output Configuration:
- The output voltage (VOUT) can range from 0.01V to VCC-0.01V.
- Connect a load resistor (e.g., 10kΩ) to the output to ensure proper operation and stability.
Biasing and Feedback:
- Use external resistors to set the gain and bias the op-amp as required.
- For non-inverting configurations, connect the non-inverting input to the desired reference voltage.
- For inverting configurations, connect the inverting input to the feedback network.
Slew Rate and Bandwidth:
- The typical slew rate is 10V/μs, suitable for fast transient responses.
- The bandwidth is 10MHz, making it suitable for high-frequency applications.
Protection:
- The device has built-in short-circuit protection, but avoid prolonged short circuits to prevent damage.
- Use appropriate decoupling capacitors near the power pins to filter out noise and transients.
Temperature Considerations:
- The device operates over a wide temperature range, but ensure it is within the specified limits for reliable performance.
Layout and PCB Design:
- Use a ground plane to minimize noise and improve thermal dissipation.
- Keep signal traces short and direct to reduce parasitic capacitance and inductance.
Storage and Handling:
- Store the device in a dry, cool environment to prevent moisture damage.
- Handle with care to avoid static discharge, which can damage the sensitive components.
Testing and Verification:
- Before finalizing the design, test the circuit under various conditions to ensure it meets the required specifications.
- Use an oscilloscope to verify the output waveform and stability.
By following these guidelines, you can ensure optimal performance and reliability of the LTC1535ISW in your application.
(For reference only)Inquiry - LTC1535ISW