LTC1957

The model number is a specific version of a generic that can be purchased or sampled.

Status indicates the current lifecycle of the product. This can be one of 4 stages:

• Pre-Release: The model has not been released to general production, but samples may be available.
• Production: The model is currently being produced, and generally available for purchase and sampling.
• Last Time Buy: The model has been scheduled for obsolescence, but may still be purchased for a limited time.
• Obsolete: The specific part is obsolete and no longer available. Other models listed in the table may still be available (if they have a status that is not obsolete).

The package for this IC (i.e. DIP, SOIC, BGA). An Evaluation Board is a board engineered to show the performance of the model, the part is included on the board.

For detailed drawings and chemical composition please consult our Package Site.

Pin Count is the number of pins, balls, or pads on the device. Pin-out diagrams & pin function descriptions may be found in the datasheet.

This is the acceptable operating range of the device. The various ranges specified are as follows:

• Commercial: 0 to +70 degrees Celsius
• Military : -55 to +125 degrees Celsius
• Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
• Automotive: -40 to +125 degrees Celsius

Indicates the packing option of the model (Tube, Reel, Tray, etc.) and the standard quantity in that packing option.

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

这是ADI公司预计产品从仓库发出的日期。大多数订单都会在此日期的48小时内发货。客户下单后，ADI公司会发送一封订单确认邮件，确认送货日期, 请务必注意订单输入屏幕上的预计到货日期。我们接受无现货产品的订单，此类订单可能会被安排在未来某个日期送货。此外，请注意所订购产品的仓库位置。我们在美国、欧洲和东南亚设有仓库。不同地点的运输时间可能有所差异。
样片供货情况可能好于生产供货。请将样片放入购物车，以查看样片供货情况。

Due to environmental concerns, ADI offers many of our products in lead-free versions. For more information about lead-free parts, please consult our Pb (Lead) free information page.

这是网上发布的此型号产品变更通知(PCN)和产品停产通知(PDN)的清单。点击链接可查看PCN/PDN信息。在线PCN自2009年开始提供，在线PDN自2010年开始提供。欲获得更早的PCN或PDN，请联系ADI销售代表。欲了解有关ADI公司PCN/PDN程序的更多信息，请访问PCN/PDN信息页面。

如果该产品型号支持通过ADI或授权代理商在线购买，页面将显示订购选项。如果该产品型号可供申请样片，页面将显示样片选项，如果未提供样片，请查看产品页面的关于如何申请样片的标注说明，或者请联系ADI.