OPA2191 datasheet(17/59 Pages) TI

Part #	OPA2191

Description	OPAx191 36-V, Low-Power, Precision, CMOS, Rail-to-Rail Input/Output, Low Offset Voltage, Low Input Bias Current Op Amp

PDF	59 Pages

Scroll/Zoom	100%

Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

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17 / 59 page

6.9 Typical Characteristics (continued)

at TA = 25°C, VS = ±18 V, VCM = VS / 2, RL = 10 kΩ connected to VS / 2, and CL = 100 pF (unless otherwise noted)

Frequency (Hz)

100m

100

10k

100k

10M

100

10k

100k

Figure 6-31. Open-Loop Output Impedance

vs Frequency

100

1000

Capacitive Load (pF)

RISO = 0

RISO = 25

RISO = 50

C004

G = 1, 100-mV output step

Figure 6-32. Small-Signal Overshoot

vs Capacitive Load (100-mV Output Step)

100

1000

Capacitive Load (pF)

RISO = 0

RISO = 25

RISO = 50

C004

G = –1, 100-mV output step

Figure 6-33. Small-Signal Overshoot

vs Capacitive Load

Time (50 Ps/div)

Output

Input

Figure 6-34. No Phase Reversal

Time (Ps)

Negative overload

Positive overload

VS = ±18 V, G = –10 V/V

Figure 6-35. Overload Recovery

Time (2.5 µs/div)

C017

G = 1, CL = 10 pF

Figure 6-36. Small-Signal Step Response

www.ti.com

OPA191, OPA2191, OPA4191

SBOS701D – DECEMBER 2015 – REVISED AUGUST 2021

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