公开(公告)号：US07561083B2

公开(公告)日：2009-07-14

申请号：US11933038

申请日：2007-10-31

Applicant: David Anderson ,  Jack Weimer

Inventor： David Anderson ,  Jack Weimer

IPC: H03M1/10

CPC classification number: H03M1/109 ,  H03M1/12

Abstract: Methods and apparatus, including computer program products, to test analog to digital converters, are disclosed. In general, data is received that characterizes a first digital code from a device under test at a first analog voltage of an analog signal generator and a second digital code being a digital code threshold, and a step size is generated for another test of the device by performing a calculation by a processor. The calculation may include multiplying a least significant bit size of the device with a difference of the first and second digital codes to generate a product, and dividing the product by a least significant bit size of the analog signal generator. The first digital code may be calculated from results from multiple subtests in the test, where each of the subtests includes multiple analog to digital conversions by the device at the first analog voltage.

Abstract translation: 公开了用于测试模数转换器的方法和装置，包括计算机程序产品。 通常，接收在模拟信号发生器的第一模拟电压下表征来自被测器件的第一数字代码的数据和作为数字代码阈值的第二数字代码，并且为器件的另一测试生成步长 通过执行处理器的计算。 计算可以包括将设备的最低有效位大小与第一和第二数字码的差值相乘以产生乘积，并且将乘积除以模拟信号发生器的最低有效位大小。 可以根据测试中的多个子测试的结果来计算第一个数字代码，其中每个子测验包括该器件在第一个模拟电压下的多个模数转换。

公开(公告)号：US20090109072A1

公开(公告)日：2009-04-30

申请号：US11933038

申请日：2007-10-31

Applicant: David Anderson ,  Jack Weimer

Inventor： David Anderson ,  Jack Weimer

IPC: H03M1/10

CPC classification number: H03M1/109 ,  H03M1/12

Abstract: Methods and apparatus, including computer program products, to test analog to digital converters, are disclosed. In general, data is received that characterizes a first digital code from a device under test at a first analog voltage of an analog signal generator and a second digital code being a digital code threshold, and a step size is generated for another test of the device by performing a calculation by a processor. The calculation may include multiplying a least significant bit size of the device with a difference of the first and second digital codes to generate a product, and dividing the product by a least significant bit size of the analog signal generator. The first digital code may be calculated from results from multiple subtests in the test, where each of the subtests includes multiple analog to digital conversions by the device at the first analog voltage.

Abstract translation: 公开了用于测试模数转换器的方法和装置，包括计算机程序产品。 通常，接收在模拟信号发生器的第一模拟电压下表征来自被测器件的第一数字代码的数据和作为数字代码阈值的第二数字代码，并且为器件的另一测试生成步长 通过执行处理器的计算。 计算可以包括将设备的最低有效位大小与第一和第二数字码的差值相乘以产生乘积，并且将乘积除以模拟信号发生器的最低有效位大小。 可以根据测试中的多个子测试的结果来计算第一个数字代码，其中每个子测验包括该器件在第一个模拟电压下的多个模数转换。