TL031CD datasheet(42/74 Pages) TI1

42 / 74 page

TL03x, TL03xA

ENHANCED-JFET LOW-POWER LOW-OFFSET

OPERATIONAL AMPLIFIERS

SLOS180C − FEBRUARY 1997 − REVISED DECEMBER 2001

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

APPLICATION INFORMATION

output characteristics

All operating characteristics (except bandwidth and phase margin) are specified with 100-pF load capacitance.

The TL03x and TL03xA drive higher capacitive loads; however, as the load capacitance increases, the resulting

response pole occurs at lower frequencies, thereby causing ringing, peaking, or even oscillation. The value of

the load capacitance at which oscillation occurs varies with production lots. If an application appears to be

sensitive to oscillation due to load capacitance, adding a small resistance in series with the load should alleviate

the problem (see Figure 63). Capacitive loads of 1000 pF and larger can be driven if enough resistance is added

in series with the output (see Figure 62).

(a) CL = 100 pF, R = 0

(b) CL = 300 pF, R = 0

(d) CL = 1000 pF, R = 0

(e) CL = 1000 pF, R = 50 Ω

(f) CL = 1000 pF, R = 2 kΩ

Figure 62. Effect of Capacitive Loads

10 k

(see Note A)

− 15 V

15 V

−5 V

5 V

NOTE A: CL includes fixture capacitance.

Figure 63. Test Circuit for Output Characteristics

TL031CD データシート(PDF) 42 Page - Texas Instruments