LT1122CS8 datasheet by Linear Technology

LT1122CS8 Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the LT1122CS8?
  The maximum input voltage that can be applied to the LT1122CS8 is 15V, but it's recommended to keep it below 12V for optimal performance and to prevent damage to the internal circuitry.
• How do I ensure the LT1122CS8 is stable and doesn't oscillate?
  To ensure stability, make sure to follow the recommended layout and component placement guidelines, use a low-ESR output capacitor, and add a 10nF to 100nF capacitor between the Vout and Vin pins to filter out high-frequency noise.
• What is the minimum output current that the LT1122CS8 can deliver?
  The LT1122CS8 can deliver a minimum output current of 1mA, but it's recommended to operate it above 10mA for optimal performance and to prevent dropout.
• Can I use the LT1122CS8 in a high-temperature environment?
  The LT1122CS8 is rated for operation up to 125°C, but its performance and reliability may degrade at high temperatures. It's recommended to derate the output current and voltage according to the temperature derating curve in the datasheet.
• How do I calculate the output voltage of the LT1122CS8?
  The output voltage of the LT1122CS8 can be calculated using the formula: Vout = (R1 / R2) * (Vin - Vref), where R1 and R2 are the resistors in the feedback network, Vin is the input voltage, and Vref is the internal reference voltage (2.5V).