PLMP7704HBHSLASHEM datasheet(20/31 Pages) TI

Numer części	PLMP7704HBH/EM

Szczegółowy opis	LMP7704-SP Radiation Hardness Assured (RHA), Precision, Low Input Bias, RRIO, Wide Supply Range Amplifiers

PDF	31 Pages

Scroll/Zoom	100%

Producent	TI [Texas Instruments]

Strona internetowa	http://www.ti.com

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20 / 31 page

In Figure 7-2, CF is added to compensate for input capacitance and to increase stability. Additionally, CF reduces

or eliminates the gain peaking that can be caused by having a larger feedback resistor. Figure 7-4 shows how

CF reduces gain peaking.

10k

100k

10M

FREQUENCY (Hz)

-10

-8

-6

-4

-2

VS = 5V

R1 = R2 = 100 k:

AV = -1

CF = 5 pF

CF = 3 pF

CF = 1 pF

CF = 0 pF

Figure 7-4. Closed-Loop Gain vs Frequency With Compensation

7.3.5 Diodes Between the Inputs

The LMP7704-SP have a set of anti-parallel diodes between the input pins, as shown in Figure 7-5. These

diodes are present to protect the input stage of the amplifier. At the same time, they limit the amount of

differential input voltage that is allowed on the input pins. A differential signal larger than one diode voltage drop

might damage the diodes. The differential signal between the inputs needs to be limited to ±300 mV or the input

current needs to be limited to ±10 mA.

ESD

Figure 7-5. Input of LMP7704-SP

LMP7704-SP

SNOSDB6A – DECEMBER 2020 – REVISED JANUARY 2021

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PLMP7704HBH/EM Arkusz danych(PDF) 20 Page - Texas Instruments