参数资料
型号: PADS1298CZXGT
厂商: TEXAS INSTRUMENTS INC
元件分类: 模拟信号调理
英文描述: SPECIALTY ANALOG CIRCUIT, PBGA64
封装: 8 X 8 MM, LEAD FREE, PLASTIC, NFBGA-64
文件页数: 47/73页
文件大小: 957K
代理商: PADS1298CZXGT
PRODUCTPREVIEW
MUX1[2:0]=000
RLD_SENSP[0]=1
RLD_SENSN[0]=1
MUX2[2:0]=000
MUX3[2:0]=000
MUX1[2:0]=010
RLD_MEAS=1
AND
PGA1
RLD_SENSP[1]=1
RLD_SENSN[1]=1
PGA2
RLD_SENSP[2]=1
RLD_SENSN[2]=1
PGA3
RLD_AMP
RLD_SENSP[7]=0
RLD_SENSN[7]=0
PGA8
RLD_OUT
RLD_INV
RLD_REF
RLD_IN
Filteror
Feedthrough
ADS1298
IN1P
IN1N
EMI
Filter
MUX
EMI
Filter
EMI
Filter
EMI
Filter
IN2N
IN3N
IN8N
IN2P
IN3P
IN8P
MUX8[2:0]=111
390k
W
(1)
10nF
(1)
www.ti.com
SBAS459C – JANUARY 2010 – REVISED MARCH 2010
Input Multiplexer (Measuring the Right Leg Drive Signal)
Also, the RLDOUT signal can be routed to a channel (that is not used for the calculation of RLD) for
measurement. Figure 35 shows the register settings to route the RLDIN signal to channel 8. The measurement is
done with respect to the voltage on the RLDREF pin. If RLDREF is chosen to be internal, it would be at (AVDD +
AVSS)/2. This feature is useful for debugging purposes during product development.
(1) Typical values for example only.
Figure 35. RLDOUT Signal Configured to be Read Back by Channel 8
Copyright 2010, Texas Instruments Incorporated
51
Product Folder Link(s): ADS1294 ADS1296 ADS1298
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