Hello,
I ran a simulation with LTspice using a PSpice model of LMG1020 provided by TI.
The schematic is as follows.
As a result of the simulation, the output voltage Vout is about 1.97 V as follows.
But, the output voltage should be 5V and I cannot find the cause.
If there is any mistake in my schematic or setting, please tell me.
.asy file is :
SymbolType CELL RECTANGLE Normal -96 -72 112 72 WINDOW 0 0 -72 Bottom 2 WINDOW 3 0 72 Top 2 SYMATTR Value LMG1020 SYMATTR Prefix X PIN 112 48 RIGHT 8 PINATTR PinName GND PINATTR SpiceOrder 1 PIN -96 0 LEFT 8 PINATTR PinName INP PINATTR SpiceOrder 2 PIN -96 48 LEFT 8 PINATTR PinName INM PINATTR SpiceOrder 3 PIN 112 -48 RIGHT 8 PINATTR PinName OUTH PINATTR SpiceOrder 4 PIN 112 0 RIGHT 8 PINATTR PinName OUTL PINATTR SpiceOrder 5 PIN -96 -48 LEFT 8 PINATTR PinName VDD PINATTR SpiceOrder 6
.asc file is:
SHEET 1 10616 3840 WIRE 7360 448 7360 368 WIRE 7440 448 7360 448 WIRE 7520 448 7440 448 WIRE 7440 480 7440 448 WIRE 7520 480 7520 448 WIRE 7184 560 7088 560 WIRE 7440 560 7392 560 WIRE 7184 608 6976 608 WIRE 7520 608 7520 560 WIRE 7520 608 7392 608 WIRE 7184 656 7152 656 WIRE 7568 656 7392 656 WIRE 7152 752 7152 656 WIRE 7088 832 7088 560 WIRE 7200 832 7088 832 WIRE 7440 832 7200 832 WIRE 7440 848 7440 832 WIRE 7440 944 7440 928 WIRE 7568 944 7568 656 WIRE 7568 944 7440 944 WIRE 7440 976 7440 944 FLAG 6976 688 0 FLAG 7440 976 0 FLAG 7152 752 0 FLAG 7360 368 Vout FLAG 7200 896 0 SYMBOL voltage 7440 832 R0 WINDOW 123 0 0 Left 0 WINDOW 39 24 58 Left 2 WINDOW 3 17 100 Left 2 SYMATTR Value 5 SYMATTR InstName Vcc1 SYMBOL res 7536 576 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R6 SYMATTR Value 2 SYMBOL LMG1020 7280 608 R0 SYMATTR InstName U1 SYMBOL res 7456 576 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R8 SYMATTR Value 2 SYMBOL voltage 6976 592 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 WINDOW 3 17 100 Left 2 SYMATTR Value 3.3 SYMATTR InstName Vcc2 SYMBOL cap 7184 832 R0 SYMATTR InstName C1 SYMATTR Value 1� TEXT 7712 528 Left 2 !.tran 0 0.5m 0.1m 10n TEXT 7712 480 Left 2 !.lib LMG1020.LIB
