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TLC2654: TLC2654
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Does LMP 7721 have the same 2KV protection as LMC 6001
Can I get complete specs of LMP 7721 and LMC 6001
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LM339: Data sheet error?
Part Number:LM339
The LM339 data sheet (SLCS006T) states (Section 8.3 Feature Description):
"The output NPN sinks current when the positive input voltage is higher than the negative input voltage and the offset voltage. "
Which is not typical of comparators and also disagrees with the description in 9.2.2.1.
It also disagrees with the Electrical Characteristics:
IOL Low-level output current is typically 16mA when VID=–1V (IN+ with respect to IN-).
Am I reading something wrong?
LM139, LM239, LM339, LM139A, LM239A, LM339A, LM2901, LM2901AV, LM2901V
SLCS006T –OCTOBER 1979–REVISED JUNE 2015
Source: www.ti.com/.../lm339.pdf
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LOG114: Connecting a photodiode as the input current source.
Part Number:LOG114
If connecting a photodiode as the current device, do I need to use the negative input current configuration as described in Figs. 7-9 in the datasheet? Meaning using additional parts?
Is there an appnote or sample sch for a single photodiode logarithmic TIA application?
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THS7530: Driving the Gain Setting Input In Double Ended supply
Part Number:THS7530
I would like to use this part the Vcom at 0V. I'm using a +/-2V power supply.
What will be the VG- Referenced to? Will the voltage range still be 0 to 0.9V in this case?
Thank you,
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Linux/INA260: Device tree entry support
Part Number:INA260
Tool/software: Linux
Hello:
We are using INA260 in our custom design board. I have got the following module to enable in my Kernel configuration.
CONFIG_PACKAGE_kmod-hwmon-ina2xx:
│
│ Kernel module for ina2xx dc current monitor chips
│
│
│
│ Symbol: PACKAGE_kmod-hwmon-ina2xx [=y]
│ Type : tristate
│ Prompt: kmod-hwmon-ina2xx.............................. INA2XX monitoring support
│ Location:
│ -> Kernel modules
│ -> Hardware Monitoring Support
│ -> kmod-hwmon-core.............................. Hardware monitoring support (PACKAGE_kmod-hwmon-core [=y])
│ Defined at tmp/.config-package.in:9152
│ Depends on: PACKAGE_kmod-hwmon-core [=y]
│ Selects: PACKAGE_kmod-i2c-core [=y] && PACKAGE_kmod-regmap [=n]
&i2c1 {
clock-frequency = <100000>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c1>;
status = "okay";
ina260 {
compatible = "ti,ina230";
reg = <0x4e>;
shunt-resistor = <10000>;
};
};Am I missing any DTS entry for current sense trip? or how do I assign the same?
We have to measure the power draw on the USB port, hence the Alert output from INA260 is connected to a GPIO. I believe we have to define the GPIO entry in the above structure.
Appreciate your support
Regards,
Waman Prabhu
Methode Electronics.
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INA149: INA149
Part Number:INA149
Hello,
I need to develop 100A Bidirectional Current and 400V Voltage measurement device using shunt resistor with accuracy of 99%.So,Please suggest components.
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OPA4317: Automotive version(OPA4317-Q1)
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TLV3501: TLV3501
Part Number:TLV3501
I notice TLV3501 has -.03V possible at the -ve input in a comparator application.
Input in this circuit below has a sinusoid(vldet) with min amplitude of 100 mV with max at 200mV
You see any design safety issues with this circuit?
I am looking for fast comparator in a SOT23 pkg & this is the only one I found. I would prefer a split supply in SOT23 pkg but none I found.
Do you know one that would take +/- 5V split in a sot23 pkg & be this fast?
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non phase reversal op amps
Hi guys I need to come up with a complete list of TI low voltage op amps (0V to 2.7V maybe 3V) that have phase reversal protection or prevention circuitry built in. It is a parameter I can't search on. I'm only interested in op amps that come in single package. I only want max 6 pins. I need SC70 package or smaller. Kind Regards Paul.
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INA3221: How to deal with unused output pins of INA3221
Part Number:INA3221
A follow up question to this thread: http://e2e.ti.com/support/amplifiers/f/14/t/534077?How-to-deal-with-unused-channel-input-pin-of-INA3221
Can VPU be also left floating if not using PV and alert outputs, without any impact to power down leakage?
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LMP7715: LMP7715 doesn't have footprint
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Help identify this TI Op Amp
I found the same chip in the FYA2030S signal amplifier available on Aliexpress (First Line: 30021 ; second Line: TI logo followed by 3VT ; Third Line: VPM3)
e2e.ti.com/.../FeeltechOutputAmp.jpg
There are 10 chips on the board. I was curious to know what are its characteristics.
Thank you and best regards,
Guy Chaboteaux
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TRF37C75: Schematic review on TDD system
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INA169-Q1: Max Input offset voltage drift
Part Number:INA169-Q1
Hi,
There is a parameter provided in datasheet of INA169-Q1 called input offset voltage drift wrt temperature.The parameter value given is the typical value but i need the maximum value or worst case value for my calculations.
Could anybody help me on this.
Thanks & Regards,
Mohammad Asad Khan
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XTR111: max output voltage swing
Part Number:XTR111
Dear Team,
we have a 4-20mA design with a limited power supply voltage of 21.4V We need to maximize the compliance volte on the loop to meet the burden Spec. Iout 20mA, Burden resistor 270Ohms, blocking diode drop 0,4V. Supply Compliance voltage requirement 15V.
21.4Vsupply - 15Vcompliance - 5.4Vburden - 0.4Vblocking = 0.6V
The 1.6V drop between VDD and VIS are limiting the usability of the XTR111. We will have the reduce the drop 0,6V. Is there a workaround with an external circuit or would you have a suggestion how to meet this spec?
thanks
Lutz
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LMH7220: Strange behaviour
Part Number:LMH7220
Hello,
on some PCBs the following schematic is working. i have a high speed currten signal and converted it over a shunt resistor in to voltage domain. To transmit a logic high/low signal i use the LMH7220. Later the output is going to an optocoupler, where the output of the opto goes in to an 3.3V µC. Now i struggle why some LMH7220 are working and some not. What also was interseting: at (hand) soldering they seemed to be very senstive, the output was not rectangualar. After replacing some and carefully soldering the output was as supposed to be (rectangular). But now I replaced several of them on one PCB and no output is comming out, when measuring the in- and in+ the signals looking great. I even removed the opto, to check whether the opto is the guilty one, but no. Was it just a coinsidence that some are working, and the below schematic normally should not work? or most of the ICs are destroyed due to ESD? I hope not, (but i ordered new one) to verify it, also i ordered an socket, to evaluate them prior soldering.
Maybe some of you can give me a hint.
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TINA/Spice/TLV6001: PSPICE used in single supply configuration
Part Number:TLV6001
Tool/software:TINA-TI or Spice Models
Hi team,
I am planning to simulate TLV6001 PSPICE model on the web under 5V single supply (Vcc=5V, VEE=GND).
But the simulation doesn't finish if VEE is connected to GND. If VEE is connected to -5V, it works fine.
Is there any restrictions using this model under single supply configuration?
Is there user manual, user guide of this model?
regards,
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INA826EVM: INA826
Part Number:INA826EVM
Dear All,
I have an output drift problem while evaluating INA826 with TAL220B 5kG load cell. After power is applied, the output reading is correct. However, shortly after it starts drifting to 0 rail and within minutes becomes 0.
Here is my setup:
TAL220B is a Wheatstone bridge with 1k resistors.
A 49.9 Ohm resistor sets Gain to 1000. High gain is needed because load cell produces output in single digit mV range.
I am using a 10V DC rail to power both INA826 and the bridge.
Vref to INA826 is set to 5.6V
Interestingly enough – even though the supply is a single rail, when load is removed, the output signal changes to negative value. When this negative value is subtracted from positive drifting down output, the result is equal to initial output reading at power up.
I am at loss and would very much appreciate help.
Thanks in advance!
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OPA171: OPA171AIDBVR internal clamp diode from VIN+/- to VDD
Part Number:OPA171
Dear support team
may i have your help to check if OPA171AIDBVR has internal clamp diode from IN+/- to VDD as following red circle
since my customer facing the issues because of this diode, do we have similar part WITHOUT this clamp diode?
thanks a lot
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