Datasheet

TLC2654, TLC2654A
Advanced LinCMOS LOW-NOISE CHOPPER-STABILIZED
OPERATIONAL AMPLIFIERS
SLOS020G – NOVEMBER 1988 – REVISED APRIL 2001
18
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 26
Chopping Frequency – kHz
VN(PP) – Peak-to-Peak Input Noise Voltage – uV
N(PP)
V
PEAK-TO-PEAK INPUT NOISE VOLTAGE
vs
CHOPPING FREQUENCY
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
0246810
V
DD±
= ±5 V
R
S
= 20 Ω
f = 0 to 1 Hz
T
A
= 25°C
µV
Figure 27
VN(PP) – Peak-to-Peak Input Noise Voltage – uV
N(PP)
V
µV
3
2
1
0
0246
4
PEAK-TO-PEAK INPUT NOISE VOLTAGE
vs
CHOPPING FREQUENCY
5
810
V
DD±
= ±5 V
R
S
= 20 Ω
f = 0 to 10 Hz
T
A
= 25°C
Chopping Frequency – kHz
Figure 28
30
20
10
0
1 10 100
VN – Equivalent Input Noise Voltage – xxxxxx
40
f – Frequency – Hz
EQUIVALENT INPUT NOISE VOLTAGE
vs
FREQUENCY
50
1 k
10 k
nV/ Hz
V
n
V
DD±
= ±5 V
R
S
= 20 Ω
T
A
= 25°C
Figure 29
100
80
40
20
140
60
100 1 k 10 k
kSVR – Supply Voltage Rejection Ratio – dB
120
f – Frequency – Hz
SUPPLY VOLTAGE REJECTION RATIO
vs
FREQUENCY
k
SVR
V
DD±
= ±2.3 V to ±8 V
T
A
= 25°C
k
SVR+
k
SVR–
0
10