參數(shù)資料
型號(hào): TLC320AD50CPTR
廠商: TEXAS INSTRUMENTS INC
元件分類(lèi): 模擬信號(hào)調(diào)理
英文描述: SPECIALTY ANALOG CIRCUIT, PQFP48
封裝: PLASTIC, QFP-48
文件頁(yè)數(shù): 20/56頁(yè)
文件大?。?/td> 555K
代理商: TLC320AD50CPTR
2–12
ADC input. These input sources are selected by bits D4 and D5 of control register 1. The default condition self-biases
the input since the register default value selects INP and INM as the source for both the ADC and monitor amplifier
input (see Figure 2–16). A simple single-pole antialias filter with low output impedance must be connected to INP and
INM (also AUXP and AUXM, if used).
VINP
INP
VINM
INM
2.5 V
35 k
35 k
Figure 2–16. INP and INM Internal Self-Biased (2.5 V) Circuit
2.9.1
Analog Output
The OUTP and OUTM are differential outputs and can drive a typical 600-
load directly. Figure 2–17 shows the circuit
when load is ground referenced.
_
+
10 k
10 k
TLE2062
10 k
–5 V
5 V
10 k
Load
OUTM
OUTP
Figure 2–17. Differential Output Drive (Ground Referenced)
OUTP (Solid Line)
OUTM (Dashed Line)
4 V
2.5 V
1 V
(Virtual 0)
Digital Input Code
Analog Output Voltage
(+FS) 0111 1111 1111 1111
(Virtual 0) 0000 0000 0000 0000
(–FS) 1000 0000 0000 0000
OUT +
4 V
2.5 V
1 V
OUT –
1 V
2.5 V
4 V
Figure 2–18. Digital Input Code vs Analog Output Voltage
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