TLE2662 Datasheet, PDF (21/40 Pages) Texas Instruments – DUAL uPOWER JFET-INPUT OPERATIONAL AMPLIFIER WITH SWITCHED-CAPACITOR VOLTAGE CONVERTER

TLE2662
DUAL µPOWER JFET-INPUT OPERATIONAL AMPLIFIER
WITH SWITCHED-CAPACITOR VOLTAGE CONVERTER
SLOS118B – DECEMBER 1992 – REVISED AUGUST 1994
TYPICAL CHARACTERISTICS^†
SWITCHED-CAPACITOR SECTION
OSCILLATOR FREQUENCY
vs
FREE-AIR TEMPERATURE
35
33
31
29
VCC = 15 V
27
25
VCC = 3.5 V
23
21
19
17
15
– 75 – 50 – 25
0
25
50 75 100
TA – Free-Air Temperature – °C
Figure 38
SUPPLY CURRENT IN SHUTDOWN
vs
INPUT VOLTAGE
120
100
V(FB/SD) = 0
80
60
40
20
0
0
5
10
15
VI – Input Voltage – V
Figure 39
AVERAGE SUPPLY CURRENT
vs
OUTPUT CURRENT
140
TA = 25°C
120
100
OUTPUT VOLTAGE LOSS
vs
INPUT CAPACITANCE
1.4
1.2
IO = 100 mA
1
80
60
40
20
0
0
20
40
60
80
100
IO – Output Current – mA
Figure 40
0.8
IO = 50 mA
0.6
IO = 10 mA
0.4
0.2
0
0
Inverter Configuration
COUT = 100-µF Tantalum
fosc = 25 kHz
10 20 30 40 50 60 70 80 90 100
Ci – Input Capacitance – µF
Figure 41
† _{Data applies for the switched-capacitor block only. Amplifier block is not connected.}
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
21