Hi
I want to do the simulation of AD8250.
I made the model from "AD8250.cir" file.
But I couldn't simulate that.
Error message is below.
*** ERROR *** The circuit is too large to simulate with this version.
Too many analog nodes
Please provide the AD8250 model file?
and please give us the tips to go well .
Regards
moto
ADIsimPE Release 7.20k
I have found that the library comes with the AMP01,02, and 04, but not the AMP03. Naturally it is the one I need. I am just now learning this particular suite and I am having trouble adding the desired component to the library. I have seen many great example showing one simply dragging and dropping a spice file into the command prompt for ADIsimPE. However, the manufacture website, Analog Devices, only offers .BXL files for this component. It is then pointed out that I can use Ultra Librarian to correct that but I'm not having any luck figuring out what needs to happen. I can get Ultra Librarian to process the .BXL file into a number of different tool formats but none of them appear to be compatible with ADIsimPE. Any help with this would be greatly appreciated.
Hi there,
Please kindly advise what the listed thermal specification of ADM3260 SSOP & ADE7953 LFCSP are :
1. Temperature of junction ? Tj
2. Temperature of case ? Tc
3. Junction-case thermal resistance ? θjc
4. Junction-ambient thermal resistance ? θja
Thanks,
Michael Chang
|
I have this circuit to be simulated in Pspice. I'm a complete newbie to it. But so far have managed to make the schematic (adding external components, which were not available already in the library). I have added models for AD8336, AD736 and AD8551 externally (models for which were available on Analaog devices website). Now when I try to run my simulation, I get errors as to the sub circuits used by AD8336 and AD736 are undefined (although I have added the libraries for both the AD8336 and AD8551 to my design in the simulation profile). Kindly help. I really feel stuck up at this point. I got to make this work anyhow. |
Schematic:
Error Log:**** 10/07/15 10:45:53 ****** PSpice Lite (October 2012) ****** ID# 10813 ****
** Profile: "SCHEMATIC1-AGC Analysis" [ C:\OrCAD\OrCAD_16.6_Lite\tools\capture\agc_sim-pspicefiles\schematic1\agc analysis.sim ]
**** CIRCUIT DESCRIPTION
******************************************************************************
** Creating circuit file "AGC Analysis.cir"
** WARNING: THIS AUTOMATICALLY GENERATED FILE MAY BE OVERWRITTEN BY SUBSEQUENT SIMULATIONS
*Libraries:
* Profile Libraries :
* Local Libraries :
.LIB "C:/OrCAD/OrCAD_16.6_Lite/tools/pspice/library/ad736.lib"
.LIB "C:/OrCAD/OrCAD_16.6_Lite/tools/pspice/library/ad8551.lib"
.LIB "C:/OrCAD/OrCAD_16.6_Lite/tools/pspice/library/ad8336.lib"
* From [PSPICE NETLIST] section of C:\Users\Sakshi_Project_staff\AppData\Roaming\SPB_16.6\cdssetup\OrCAD_PSpice/16.6.0/PSpice.ini fi
.lib "nomd.lib"
*Analysis directives:
.TRAN 0 10ms 0
.OPTIONS ADVCONV
.PROBE64 V(alias(*)) I(alias(*)) W(alias(*)) D(alias(*)) NOISE(alias(*))
.INC "..\SCHEMATIC1.net"
**** INCLUDING SCHEMATIC1.net ****
* source AGC_SIM
V_V5 N13626 GND 5Vdc
X_U1 N13234 N13194 N13510 GND N13478 GND GND N13478 N13910 N133221
+ N13784 AD8336
R_R4 GND N13194 1k TC=0,0
C_C9 GND N13330 4.7n TC=0,0
R_R6 N13258 N13290 10k TC=0,0
X_U2 GND N13590 N15826 N13578 GND N13626 N13290 N13310 AD736
V_V3 N13784 GND 5Vdc
V_V1 GND N13030 5Vdc
R_R7 N133221 N13330 100 TC=0,0
C_C3 GND N13082 0.1u TC=0,0
C_C5 N13234 N13258 0.022u TC=0,0
V_V6 GND N13578 -5Vdc
R_R5 N13230 N13258 10k TC=0,0
C_C11 N13510 N13478 1n TC=0,0
C_C1 GND N13030 0.1u TC=0,0
R_R10 N13510 N13478 1k TC=0,0
C_C6 N13578 N13310 33u TC=0,0
V_V4 GND N13672 5Vdc
R_R1 N13118 N13082 9.09k TC=0,0
R_R9 N13768 N13510 1k TC=0,0
X_U3 N13672 N13234 GND N13258 N13648 AD8551
R_R3 N13194 N13082 1k TC=0,0
C_C4 N13230 N13234 2.2u TC=0,0
R_R11 GND N13590 1Meg TC=0,0
C_C7 N13330 OUTPUT 10u TC=0,0
C_C10 N13590 OUTPUT 0.1u TC=0,0
R_R13 N13118 N13648 500 TC=0,0
V_V2 N13910 GND -5Vdc
R_R12 GND N13648 500 TC=0,0
C_C12 N15826 N13290 10u TC=0,0
V_V9 N13768 GND AC 5V
+SIN 0V 5V 50 0 0 0
**** RESUMING "AGC Analysis.cir" ****
.END
**** EXPANSION OF SUBCIRCUIT X_U1 ****
X_U1.E_U4_E8 X_U1.VPBUF 0 TABLE { V(10#, 0) } 0 0 2.8 0 3.0 1.6 5 3.6
+ 12 10.6 15 13.6 uselim
------------------$
ERROR(ORPSIM-16152): Invalid number
$
ERROR(ORPSIM-16049): Values must be monotonic increasing
+ E_U4_E9 VNBUF 0 TABLE { V(8#, 0) } -15 -13.6 -12 -10.6 -5 -3.6 -3.0
+ -1.6 -2.8 0 0 0 uselim
X_U1.X_U4_D5 N13478 X_U1.VPBUF DC_1mV_1A_1V_1nA
X_U1.C_U4_C3 0 X_U1.U4_S3 1n
X_U1.R_U4_R4 0 GND 450K
X_U1.C_U4_C5 0 X_U1.U4_N24227 2.5p
X_U1.E_U4_E7 X_U1.U4_N254725 0 VALUE {V(U4_N349891,0)*V(POK,0)}
X_U1.R_U4_R6 0 N13510 450k
X_U1.X_U4_D15 X_U1.VNBUF X_U1.U4_S3 GEN_DIODE
X_U1.C_U4_C1 N13510 N13478 2p
X_U1.X_U4_D13 X_U1.U4_S3 X_U1.VPBUF GEN_DIODE
X_U1.G_U4_G4 0 X_U1.U4_N24227 X_U1.U4_S3 0 1
X_U1.C_U4_C4 N13510 0 6p
X_U1.X_U4_D6 X_U1.VNBUF N13478 DC_1mV_1A_1V_1nA
X_U1.X_U4_S1 X_U1.PWRAL 0 X_U1.U4_N254725 X_U1.U4_S3 PrA_U4_S1
X_U1.E_U4_E6 X_U1.U4_N349891 0 GND N13510 1.0
X_U1.C_U4_C2 GND 0 6p
X_U1.G_U4_G3 X_U1.U4_N24227 N13478 TABLE { V(U4_N24227, 4#) } -15
+ -60m -1m -50m 0 0 1m 50m 15 60m uselim
----------------------------------$
ERROR(ORPSIM-16152): Invalid number
$
ERROR(ORPSIM-16049): Values must be monotonic increasing
+ G_U2_G8 8 0 PWRAL 0 11m
X_U1.X_U2_U12 PARAMS X_U2_U12.TH -2.8 N13910 X_U1.U2_N958367
+ COMPARATOR2
X_U1.R_U2_R14 0 N13910 50K
X_U1.R_U2_R11 0 N13784 50K
X_U1.G_U2_G6 N13910 0 X_U1.POK 0 14m
X_U1.X_U2_U16 X_U1.U2_N968984 X_U1.POK X_U1.PWRAL AND
X_U1.X_U2_U14 X_U1.U2_N958933 X_U1.U2_N958855 X_U1.POK AND
X_U1.R_U2_R13 0 N13910 50K
X_U1.V_U2_V1 X_U1.U2_AGAINDB1 X_U1.U2_AGAINDB2 12.04
X_U1.G_U2_G3 0 X_U1.U2_AGAINDB1 TABLE { V(VGN, 6#) } -1.0 -14.0 -0.7
+ -14.0 -0.6 -12.5 -0.52 -9.3 0.0 17.0 0.2 27.0 0.4 37.0 0.5 42.0 0.6
+ 46.0 1.0 46.0 uselim
----------------$
ERROR(ORPSIM-16152): Invalid number
$
ERROR(ORPSIM-16049): Values must be monotonic increasing
+ X_U2_D13 1 10 GEN_DIODE
X_U1.R_U2_R8 0 X_U1.U2_AGAINDB1 1
X_U1.E_U2_E1 X_U1.VGN 0 N13194 N13234 1
X_U1.X_U2_U15 X_U1.U2_N967091 GND X_U1.U2_N968984 COMPARATOR
X_U1.G_U2_G7 N13784 0 X_U1.PWRAL 0 11m
X_U1.X_U2_U13 X_U1.U2_N958367 X_U1.U2_N958855 INVERTER
X_U1.E_U2_ABM1 X_U1.AGAIN 0 VALUE { (10**(V(U2_AGAINDB2)/20))*V(POK)
+ }
X_U1.R_U2_R12 0 N13784 50K
X_U1.C_U2_C5 0 X_U1.U2_AGAINDB1 20n
X_U1.X_U2_U11 PARAMS X_U2_U11.TH 2.8 N13784 X_U1.U2_N958933
+ COMPARATOR2
X_U1.G_U2_G5 N13784 0 X_U1.POK 0 14m
X_U1.X_U2_D14 N13910 N13234 GEN_DIODE
X_U1.E_U2_E2 X_U1.U2_N967091 0 TABLE { V(10#, 0) } 0 0 3 0.7 5 1.2 12
+ 3.2 uselim
------$
ERROR(ORPSIM-16152): Invalid number
$
ERROR(ORPSIM-16049): Values must be monotonic increasing
+ X_U2_D16 0 10 GEN_DIODE
X_U1.X_U2_D15 N13910 N13194 GEN_DIODE
X_U1.E_U3_E8 X_U1.U3_CMOUT X_U1.U3_N55982 GND 0 1
X_U1.E_U3_ABM1 X_U1.U3_N62113 0 VALUE { MIN(PWR(V(AGAIN),1),1.6) }
X_U1.E_U3_E7 X_U1.U3_N55982 0 TABLE { V(VGN, 0) } -0.7 -2m -0.6 -4m
+ -0.5 -8m -0.45 -10m -0.4 -14m -0.35 -15m -0.3 -11m -0.25 -9m -0.2
+ -11m -0.1 -22m 0.0 -25m 0.1 -16m 0.2 -19m 0.3 -32m 0.4 -52m 0.5
+ -80m 0.6 -120m 0.65 -128m 0.7 -127m uselim
--------------------------------------$
ERROR(ORPSIM-16152): Invalid number
$
ERROR(ORPSIM-16049): Values must be monotonic increasing
+ E_U3_ABM2 U3_N61993 0 VALUE { (V(U3_RIN)-V(U3_ROUT))/nonzero(V(U3_N62113))
+ }
X_U1.G_U3_G3 X_U1.U3_N48981 X_U1.U3_N48971 TABLE { V(U3_N48981, U3_N48971)
+ } -15 -75m -1m -64.8m 0 0 1m 64.8m 15 75m uselim
--------------------------------------------$
ERROR(ORPSIM-16152): Invalid number
$
ERROR(ORPSIM-16049): Values must be monotonic increasing
ERROR(ORPSIM-15108): Subcircuit DC_1mV_1A_1V_1nA used by X_U1.X_U4_D5 is undefined
ERROR(ORPSIM-15108): Subcircuit GEN_DIODE used by X_U1.X_U4_D15 is undefined
ERROR(ORPSIM-15108): Subcircuit GEN_DIODE used by X_U1.X_U4_D13 is undefined
ERROR(ORPSIM-15108): Subcircuit DC_1mV_1A_1V_1nA used by X_U1.X_U4_D6 is undefined
ERROR(ORPSIM-15108): Subcircuit PrA_U4_S1 used by X_U1.X_U4_S1 is undefined
ERROR(ORPSIM-15108): Subcircuit COMPARATOR2 used by X_U1.X_U2_U12 is undefined
ERROR(ORPSIM-15108): Subcircuit AND used by X_U1.X_U2_U16 is undefined
ERROR(ORPSIM-15108): Subcircuit AND used by X_U1.X_U2_U14 is undefined
ERROR(ORPSIM-15108): Subcircuit COMPARATOR used by X_U1.X_U2_U15 is undefined
ERROR(ORPSIM-15108): Subcircuit INVERTER used by X_U1.X_U2_U13 is undefined
ERROR(ORPSIM-15108): Subcircuit COMPARATOR2 used by X_U1.X_U2_U11 is undefined
ERROR(ORPSIM-15108): Subcircuit GEN_DIODE used by X_U1.X_U2_D14 is undefined
ERROR(ORPSIM-15108): Subcircuit GEN_DIODE used by X_U1.X_U2_D15 is undefined
ERROR(ORPSIM-15108): Subcircuit DC_1mV_1A_1V_1nA used by X_U1.X_U3_D7 is undefined
ERROR(ORPSIM-15108): Subcircuit GEN_DIODE used by X_U1.X_U3_D18 is undefined
ERROR(ORPSIM-15108): Subcircuit DC_1mV_1A_1V_1nA used by X_U1.X_U3_D6 is undefined
ERROR(ORPSIM-15108): Subcircuit GEN_DIODE used by X_U1.X_U3_D17 is undefined
ERROR(ORPSIM-15108): Subcircuit VGA_U3_S1 used by X_U1.X_U3_S1 is undefined
ERROR(ORPSIM-15108): Subcircuit GEN_DIODE used by X_U1.X_U3_D15 is undefined
ERROR(ORPSIM-15108): Subcircuit AEIOPAMP0 used by X_U2.X3 is undefined
ERROR(ORPSIM-15108): Subcircuit AEIOPAMP1 used by X_U2.X1 is undefined
We are using ADP151 in a dual supply environment. We have one 2.8-3.6V battery
supply which is limited to 2.8V by an ADP151 and a 3.3V supply.
We want to connect the 3.3V supply to the ADP151s output through a diode. The
output voltage will be about 3.1V when powered through the 3.3V supply. When
the 3.3V supply is not present the ADP will supply 2.8V from the battery.
question: what will happen when the battery is completely drained and the external 3.3V is
supplied? Will this lead to a current flow from the ADP151 output to its input?
Or would there be any other reason why this would lead to damaging the ADP151?
I would usually add an extra diode at the output of the ADP151, but that would cost me too much of a voltage drop.
Hi,
(1) battery isolation
Vin = 0V (VBus not connected)
Vbat > Vweak (system is running from battery)
is it possible to isolate the battery from the system load by setting the EN_CHG & DIS_LDO bit via I2C --> total system shut down leading to minimum battery load (5µA right?)? Am I right that DIS_LDO will be reset after Vbus has been connected automatically and so the system would be powered in LDO mode in case Vbus is connected? We are planning to have a fixed soldered internal Lipo cell ... for that we would need the battery isolation/total system shut down (even if VBat>>Vweak) for maximum battery life time (during stock, ...)
(2) SYS_EN
what means 'active' in your datasheet:
- FET==active --> pin pulled low
or
- active means FET is open and pin is pulled high
is there a SYS_EN mode where SYS_EN is 'active' when Vin>Vin_ok OR Vbat>Vweak (usb connected or good battery) and deactivated if Vin<Vin_ok AND Vbat<Vweak (no usb and low battery) --> if yes (which mode?) I could use SYS_EN to en/disable a buck converter generating the system working voltage (2.7V)?
I have already ordered the eval board but you could help a lot in advance
bests
Thomas
How can I create a predefined sequencing for the regulators activation in the ADP5034?
Hi,
I'm modifying an existing design that has 3 different power inputs:
Ext power - ~12V
Batteries - 6 x AA
USB - 5V
The design currently just diode 'OR's' the supplies together before the main switching regulator.
The problem is that when there is no external power, but there are batteries and USB, the current is drawn from the batteries as they are a higher voltage. I'd really like to be able to isolate the batteries completely when on USB power.
I've been looking at high side and low side switches etc, but have yet to come up with a good solution.
I don't want to redesign the power supply - too much risk, and I'm limited for board space. I also don't want to introduce any significant losses that will limit run time on the batteries.
Any good ideas?
G
Hello,
My customer asks some questions about changing the current range of AD5560 on operation.
Their company is a manufacturer of ATE equipment in Korea.
And they will use this device to
And they are considering the use of AD5560 to their ATE equipment.
Please refer below questions and let me know your answers.
On the proceding the Measure Current Mode and maintaining the fixed voltage through FV using AD5560,
Q1) When they change the Curent Range of AD5560 on operation, are there any effect and issues at DUT voltage?
In other words, can they change the Curent Range of AD5560 on operation without any issues at DUT Voltage?
Q2) When they change the Curent Range of AD5560 on operation,is there concern about generating Noise (like GIitch) caused by changing switch at insied of device?
In other words, can they change the Curent Range of AD5560 on operation without any noises caused from inside of deivce?
Please advise me ASAP.
If you have any questions, please let me know.
Regards,
Se-woong
Hi , Ren
I would like to try a circuit for Address pin control due to my system have ADM1278-2ACPZ by each boards. I hope it can define the address by itself.
Do you have experience for this kind of setting . thanks
Hello,
I have a question about figure 55 in the ADP7116 data sheet,
I want to know the size of the PCB copper areas which the characteristic of the figure 55 is measured.
Could you tell me the size of the PCB copper areas?
Best Regards,
Mr.K
Hello everyone,
There is a problem when I use ADP7142. When I apply a negetive voltage below -0.5V, the LDO will not work. Once the voltage over than -0.5V, the output go back to normal as the curve I captured(the yellow one is a negetive voltage from a signal source in series with a 1k resistor).
Besides, I test the ADP7118 with the same condition, it prove to be the same. But when I test ADP123, it work normal.
hi;
I made a stupid mistake. In one of my project I used a adp3334acp to regulate 7v input power to 6v output. according to the datasheet of adp3334, "the thermal pad is attached to the die substrate, so the thermal planes that the vias attach the package to must be electrically isolated or connected to VIN. Do NOT connect the thermal pad to ground." But in my design, I carelessly attached the thermal pad to the ground. I thought this circuit will not work and I had to re-design it. But surprisingly, it did work! I got a 6V output from the 7V input.
My question is: should I follow the datasheet and connect the thermal pad to VIN or let it float? If I connect the thermal pad to ground, what will happen?
Attached is my circuit:
THX!
Donald
Hi,
I want to know if the ADM8829 will work well with small MLCC capacitors instead of electrolytics. Datasheet recommeds ESR < 0,2 ohm and my MLCC candidates have <5 mOhm. I Want to generate -5V from +5V. Will there be any problem?
Thanks,
David
I am trying to use the ADR444 as a 4.096V reference for the ADAS3023, using the AD8031 as a buffer, as suggested on the ADAS3023 data sheet. The ADR444 is giving about 4.3V, which is dropping to 4.2V after the AD8031. Both of these are operating off 5V input.
I don't know that this will be a major issue, but I wonder if it's possible I'm missing something.
Dear All:
ADM1278 0x4A:IOUT_OC_WARN_LIMIT & 0x4F:OT_FAULT_LIMIT function detection, How do I distinguish between the two different? If overtemperature 0x4A & 0x4F both registers have reacted? Could it be that 0x4D continued warning, 0x4F is only a flag ON?
Another 0x7D:STATUS_TEMPERATURE & 0x8D:READ_TEMPERATURE_1 what is the differencebetween the two?
Cuttlefish
Hi!
I want to simulate with ADR3540 but ADIsimPE has ADR3525 only.
Can you teach me how to simulate with ADR3540?
Best regards
Kawa
Hi there,
I just bought an ADP5090 and used a DC power supply to test it. With 0.4V input(VIN), the output(SYS and BAT) is 3V as I set for termination. I think this is the "after cold start" situation, so I use 0.1V input(VIN), and the output(SYS and BAT) is 3V as well.
Then, I connect a rectifier(as attached file) with Signal Generator. The output of rectifier is connected to ADP5090 input(VIN). Measuring the VIN, it is about 0.1~0.2V. BUT, the output(SYS and BAT) CANNOT boost to 3V. Instead, the voltage of SYS slowly drops from 3V.
I don't know if ADP5090 has to feed a pure DC input or there is other problem?
Thanks a lot!
I have created the CN0337 reference design for 3 wire RTDs in ADIsimPE and woiuld like to see VOUT and data from a current probe I placed in the circuit. But I am not sure what type of analysis to run. Anyone have experience with this reference design?
Hi, All.
Using the dualtransformeras shown in the figure belowwe would liketo make acircuitin theADP2441.
<Specifications>
Vin: 24V (32V max)
Vout1: 5V (100mA)
Vout2: 3.3V (100mA)
Do you haveany problems withthe circuit configuration of theabove?
Best Regards,
Laliberte