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LTC1992 Datasheet(PDF) 26 Page - Analog Devices

Part # LTC1992
Description  Low Power, Fully Differential Input/Output Amplifier/Driver Family
PDF  42 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LTC1992 Datasheet(HTML) 26 Page - Analog Devices

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LTC1992 Family
26
1992fb
APPLICATIONS INFORMATION
Figure 1. Comparison of an Op Amp and a Fully Differential Amplifier
Figure 2. LTC1992 Functional Block Diagram with External Gain Setting Resistors
–
–
+
+
–
–
+
+
1992 F01
RIN
RIN
RFB
RFB
Fully Differential Amplifier with Negative Feedback
Fully Differential Amplifier
–VIN
+VIN
VOCM
VOCM
VOCM
–VOUT
+VOUT
–
+
RIN
RFB
Op Amp with Negative Feedback
VIN
VOUT
RFB
RIN
GAIN = –
RFB
RIN
GAIN = –
+OUT
• DIFFERENTIAL INPUT
• HIGH OPEN-LOOP GAIN
• DIFFERENTIAL OUTPUT
• VOCM INPUT SETS OUTPUT
COMMON MODE LEVEL
–OUT
–IN
+IN
VOCM
–
+
Op Amp
OUT
LTC1992
AO
LTC1992
AO
LTC1992
LTC1992
• DIFFERENTIAL INPUT
• HIGH OPEN-LOOP GAIN
• SINGLE-ENDED OUTPUT
–IN
+IN
+
–
7
2
6
3
+
–
RMID1
200k
RMID2
200k
INP
INM
V+
V–
RCMP
30k
RCMM
30k
A1
SP
LTC1992
SM
+
+
+
–
A2
+OUT
1992 F02
–IN
+VIN
–VIN
RIN
RFB
RIN
VMID
VOCM
+IN
–OUT
–VOUT
+VOUT
+VS
–VS
5
4
RFB
1
8



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