OPA607 datasheet(31/50 Pages) TI1

31 / 50 page

Frequency (Hz)

-10

100

110

120

100

10k

100k

10M

100M

D804

AOL

1/E

AOLE

Frequency (Hz)

100

10k

100k

10M

100M

D805

AOL

1/E

AOLE

OPA810

www.ti.com

SBOS799A – AUGUST 2019 – REVISED DECEMBER 2019

Product Folder Links: OPA810

Submit Documentation Feedback

Equation 10 estimates a closed-loop bandwidth of 2.19 MHz. Figure 74 and Figure 75 show the loop-gain

magnitude and phase plots from the TINA-TI simulations of the transimpedance amplifier circuit of Figure 73. The

1/β gain curve has a zero from RF and CIN at 70 kHz and a pole from RF and CF cancelling the 1/β zero at 1.5

MHz, resulting in a 20-dB per decade rate-of-closure at the loop-gain crossover frequency (the frequency where

AOL equals 1/β), ensuring a stable circuit. A phase margin of 62° is obtained with a closed-loop bandwidth of

3 MHz and a 100-kΩ transimpedance gain.

9.2.1.3 Application Curves

Figure 74. Loop-Gain Magnitude vs Frequency for the

Transimpedance Amplifier Circuit of Figure 73

Figure 75. Loop-Gain Phase vs Frequency for the

Transimpedance Amplifier Circuit of Figure 73

OPA607 数据表(PDF) 31 Page - Texas Instruments

OPA607 数据表(HTML) 31 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

数据表下载