TSC2012 datasheet(36/50 Pages) STMICROELECTRONICS

部件名	TSC2012

功能描述	High voltage, precision, bidirectional current sense amplifiers

PDF	50 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

36 / 50 page

Figure 72. Recommended layout

5.11

EMI rejection ration (EMIRR)

The electromagnetic interference (EMI) rejection ratio, or EMIRR, describes the EMI immunity of current sensing

device. An adverse effect that is common to many current sensing is a change in the offset voltage as a result of

RF signal rectification. Figure 73 shows the EMIRR on pin IN+, Figure 74 shows the EMIRR on pin IN- of the

TSC2011 measured from 400 MHz up to 2.4 GHz.

Figure 73. EMIRR on pin+

400

600

800 1000 1200 1400 1600 1800 2000 2200 2400

100

120

Vcc=5V, T=25°C

Prf=-10dBm

Frequency (MHz)

Figure 74. EMIRR on pin-

400

600

800 1000 1200 1400 1600 1800 2000 2200 2400

100

120

Vcc=5V, T=25°C

Prf=-10dBm

Frequency (MHz)

Figure 75 shows the EMIRR on pin IN+, Figure 76 shows the EMIRR on pin IN- of the TSC2010 measured from

10 MHz up to 2.4 GHz.

TSC2010, TSC2011, TSC2012

Application information

DS13057 - Rev 7

page 36/50

TSC2012 数据表(PDF) 36 Page - STMicroelectronics