TLE2662 Datasheet, PDF (22/40 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
OUTPUT VOLTAGE LOSS
vs
OSCILLATOR FREQUENCY
2.5
Inverter Configuration
2.25 CIN = 10-µF Tantalum
COUT = 100-µF Tantalum
2
1.75
1.5
IO = 100 mA
1.25
1
IO = 50 mA
0.75
0.5
IO = 10 mA
0.25
0
1
10
100
fosc – Oscillator Frequency – kHz
Figure 42
OUTPUT VOLTAGE LOSS
vs
OSCILLATOR FREQUENCY
2.5
Inverter Configuration
2.25 CIN = 100-µF Tantalum
COUT= 100-µF Tantalum
2
1.75
1.5
1.25
IO = 100 mA
1
IO = 50 mA
0.75
0.5
0.25
IO = 10 mA
0
1
10
100
fosc – Oscillator Frequency – kHz
Figure 43
– 4.7
REGULATED OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
– 4.8
– 4.9
–5
– 5.1
–11.6
–11.8
–12
–12.2
–12.4
–12.6
– 50 – 25
0
25
50
75 100
TA – Free-Air Temperature – °C
Figure 44
REFERENCE VOLTAGE CHANGE
vs
FREE-AIR TEMPERATURE
100
SCREF = 2.5 V
80 _{TA = 25°C}
60
40
20
0
– 20
– 40
– 60
– 80
– 100
– 50 – 25
0
25
50
75 100
TA – Free-Air Temperature – °C
Figure 45
† _{Data applies for the switched-capacitor block only. Amplifier block is not connected.}
22
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265