How much US dollars should I bring to Israel?

Good day, I am curious about the appropriate amount of US dollars to bring with me when visiting Israel. I understand the local currency is the Israeli shekel, but I'm unsure of the exchange rate and what everyday expenses might entail. Could you please provide some guidance on how much cash in USD would be advisable to bring for a week-long trip, taking into account meals, transportation, and some sightseeing activities? Additionally, are there any restrictions or recommendations on using credit cards or ATMs for financial transactions in Israel? Thank you for your assistance.