Datasheet

TLC4501, TLC4501A, TLC4502, TLC4502A
FAMILY OF SELF-CALIBRATING (Self-Cal)
PRECISION CMOS RAIL-TO-RAIL OUTPUT OPERATIONAL AMPLIFIERS
SLOS221B – MAY 1998 – REVISED APRIL 2001
18
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 28
R
null
= 50 Ω
R
null
= 20 Ω
R
null
= 0
45
30
15
0
10
Phase Margin
60
75
PHASE MARGIN
vs
LOAD CAPACITANCE
90
100 1 k 10 k 100 k
C
L
– Load Capacitance – pF
50 kΩ
50 kΩ
V
DD –
V
DD +
R
null
C
L
V
I
+
–
Figure 29
R
null
= 50 Ω
R
null
= 20 Ω
R
null
= 0
T
A
25°C
15
10
5
0
10
Gain Margin – dB
20
25
GAIN MARGIN
vs
LOAD CAPACITANCE
30
100 1 k
10 k 100 k
C
L
– Load Capacitance – pF
Figure 30
T
A
– Free-Air Temperature – °C
115
110
105
100
–50 –25 0 25 50
PSRR – Power Supply Rejection Ratio – dB
120
125
POWER SUPPLY REJECTION RATIO
vs
FREE-AIR TEMPERATURE
130
75 100 125
V
DD
= 4 V To 6 V
V
IC
= V
O
= V
DD
/2
Figure 31
–1
–1.5
–2
–3
0 100 200 300 400 500 600
–0.5
0
t – Time – ms
CALIBRATION TIME AT –40°C
0.5
700 800 900 1000
–2.5
– Output Voltage – V
V
O
V
DD
= 2.5 V
GND = –2.5 V
R
L
= 1 kΩ to GND
A
V
= –1
V
I
= 0