公开(公告)号：WO0214964B1

公开(公告)日：2003-02-20

申请号：PCT/US0121877

申请日：2001-07-12

Applicant: ROSEMOUNT INC

Inventor： ROPER WESTON R ,  TYSON DAVID G ,  WESTFIELD BRIAN L ,  GABOURY MICHAEL J

IPC: G08C19/02 ,  G05B19/042 ,  G05B19/414 ,  H04Q9/00

CPC classification number: G05B19/4142 ,  G05B19/0423 ,  G05B2219/31121 ,  G05B2219/31126 ,  G05B2219/33197 ,  G05B2219/34309

Abstract: A two-wire industrial process control transmitter includes a sensor (14), at least two integrated circuits (70, 72), and a level shift circuit (48). The first integrated circuit (70) contains the analog measurement circuit that includes a sensor detection circuit (16) and the analog portion (44) of a digital-to-analog convertor. The second integrated circuit (72) contains the digital system circuit that includes a modem (78) and the digital portion (46) of the analog-to-digital convertor. The first and second Ics may be powered at different voltage levels (Vdda, Vddd) to maximize the power of the analog circuit and improve resolution. Alternatively, the Ics may be powered at the same voltage level (Vddd), but the digital circuits are divided among several stacked dies (120, 122) to minimize the voltage for each digital circuit. In either case, the level shifting circuit (48) shifts the voltage level between the analog and digital circuits.

Abstract translation: 一个双线工业过程控制发射机包括传感器（14），至少两个集成电路（70,72）和电平移位电路（48）。 第一集成电路（70）包含模拟测量电路，其包括传感器检测电路（16）和数模转换器的模拟部分（44）。 第二集成电路（72）包含数字系统电路，其包括调制解调器（78）和模拟 - 数字转换器的数字部分（46）。 第一和第二IC可以以不同的电压电平（Vdda，Vddd）供电，以最大化模拟电路的功率并提高分辨率。 或者，Ics可以以相同的电压电平（Vddd）供电，但是数字电路被划分成几个堆叠的管芯（120,122），以使每个数字电路的电压最小化。 在任一情况下，电平移位电路（48）使模拟和数字电路之间的电压电平移位。

公开(公告)号：DE60143358D1

公开(公告)日：2010-12-09

申请号：DE60143358

申请日：2001-07-12

Applicant: ROSEMOUNT INC

Inventor： ROPER WESTON R ,  TYSON DAVID G ,  WESTFIELD BRIAN L ,  GABOURY MICHAEL J

IPC: G05B19/042 ,  G08C19/02 ,  G05B19/414 ,  H04Q9/00

公开(公告)号：AU7336701A

公开(公告)日：2002-02-25

申请号：AU7336701

申请日：2001-07-12

Applicant: ROSEMOUNT INC

Inventor： ROPER WESTON R ,  TYSON DAVID G ,  WESTFIELD BRIAN L ,  GABOURY MICHAEL J

IPC: G08C19/02 ,  G05B19/042 ,  G05B19/414 ,  H04Q9/00

Abstract: A two-wire industrial process control transmitter includes a sensor, at least two integrated circuits, and a level shift circuit. The first integrated circuit contains the analog measurement circuit that includes a sensor detection circuit and the analog portion of a digital-to-analog convertor. The second integrated circuit contains the digital system circuit that includes a modem and the digital portion of the analog-to-digital convertor. The first and second ICs may be powered at different voltage levels to maximize the power of the analog circuit and improve resolution. Alternatively, the ICs may be powered at the same voltage level, but the digital circuits are divided among several stacked dies to minimize the voltage for each digital circuit. In either case, the level shifting circuit shifts the voltage level between the analog and digital circuits.

公开(公告)号：WO0214964A3

公开(公告)日：2002-08-29

申请号：PCT/US0121877

申请日：2001-07-12

Applicant: ROSEMOUNT INC

Inventor： ROPER WESTON R ,  TYSON DAVID G ,  WESTFIELD BRIAN L ,  GABOURY MICHAEL J

IPC: G08C19/02 ,  G05B19/042 ,  G05B19/414 ,  H04Q9/00

CPC classification number: G05B19/4142 ,  G05B19/0423 ,  G05B2219/31121 ,  G05B2219/31126 ,  G05B2219/33197 ,  G05B2219/34309

Abstract: A two-wire industrial process control transmitter includes a sensor (14), at least two integrated circuits (70, 72), and a level shift circuit (48). The first integrated circuit (70) contains the analog measurement circuit that includes a sensor detection circuit (16) and the analog portion (44) of a digital-to-analog convertor. The second integrated circuit (72) contains the digital system circuit that includes a modem (78) and the digital portion (46) of the analog-to-digital convertor. The first and second Ics may be powered at different voltage levels (Vdda, Vddd) to maximize the power of the analog circuit and improve resolution. Alternatively, the Ics may be powered at the same voltage level (Vddd), but the digital circuits are divided among several stacked dies (120, 122) to minimize the voltage for each digital circuit. In either case, the level shifting circuit (48) shifts the voltage level between the analog and digital circuits.

Abstract translation: 一个双线工业过程控制发射机包括传感器（14），至少两个集成电路（70,72）和电平移位电路（48）。 第一集成电路（70）包含模拟测量电路，其包括传感器检测电路（16）和数模转换器的模拟部分（44）。 第二集成电路（72）包含数字系统电路，其包括调制解调器（78）和模拟 - 数字转换器的数字部分（46）。 第一和第二IC可以以不同的电压电平（Vdda，Vddd）供电，以最大化模拟电路的功率并提高分辨率。 或者，Ics可以以相同的电压电平（Vddd）供电，但是数字电路被划分成几个堆叠的管芯（120,122），以使每个数字电路的电压最小化。 在任一情况下，电平移位电路（48）使模拟和数字电路之间的电压电平移位。