Invention Grant
US08456337B1 System to interface analog-to-digital converters to inputs with arbitrary common-modes
有权
将模数转换器与任意通用模式的输入接口连接的系统
- Patent Title: System to interface analog-to-digital converters to inputs with arbitrary common-modes
- Patent Title (中): 将模数转换器与任意通用模式的输入接口连接的系统
-
Application No.: US13442873Application Date: 2012-04-10
-
Publication No.: US08456337B1Publication Date: 2013-06-04
- Inventor: Siddhartha Gopal Krishna
- Applicant: Siddhartha Gopal Krishna
- Applicant Address: US TX Austin
- Assignee: Freescale Semiconductor, Inc.
- Current Assignee: Freescale Semiconductor, Inc.
- Current Assignee Address: US TX Austin
- Agent Charles Bergere
- Main IPC: H03M1/00
- IPC: H03M1/00
Abstract:
A system to interface analog-to-digital converters to inputs with arbitrary common-modes includes a common-mode voltage amplifier circuit and a PGA circuit connected to the common-mode voltage amplifier circuit. The common-mode voltage amplifier and PGA circuits receive first and second analog input signals. The PGA circuit eliminates the arbitrary common-modes from the first and second analog input signals based on an output of the common-mode voltage amplifier circuit.
Information query
