SBOS782A November 2016 – May 2018 TLV170 , TLV2170 , TLV4170
PRODUCTION DATA.
The dynamic characteristics of the TLVx170 are optimized for common operating conditions. The combination of low closed-loop gain and high capacitive loads decreases the phase margin of the amplifier and can lead to gain peaking or oscillations. As a result, heavier capacitive loads must be isolated from the output. The simplest way to achieve this isolation is to add a small resistor (for example, ROUT equal to 50 Ω) in series with the output. Figure 28 and Figure 29 show graphs of small-signal overshoot versus capacitive load for several values of ROUT. Also, see the Feedback Plots Define Op Amp AC Performance application report for details of analysis techniques and application circuits.
100-mV output step, RL = 10 kΩ, G = +1 |
100-mV output step, RL = 10 kΩ, G = –1 |