Datasheet

LTC6255/LTC6256/LTC6257
625567fb
9
typicAl perForMAnce chArActeristics
Total Harmonic Distortion
and Noise
Total Harmonic Distortion
and Noise Gain and Phase vs Frequency
Noise Voltage Density
vs Frequency
Wide Band Noise Voltage Density
vs Frequency Input Noise Current vs Frequency
INPUT REFERRED NOISE VOLTAGE DENSITY (nV/√Hz)
300
250
200
150
100
50
0
625567 G19
FREQUENCY (Hz)
1 10 10k 100k1k100
V
S
= ±2.5V
V
CM
= 0V
INPUT REFERRED NOISE VOLTAGE DENSITY (nV/√Hz)
80
70
60
40
30
20
10
50
0
625567 G20
FREQUENCY (Hz)
0 2M 6M4M
V
S
= ±2.5V
V
CM
= 0V
INPUT REFERRED NOISE CURRENT (pA/√Hz)
25
20
15
10
5
0
625567 G21
FREQUENCY (Hz)
1 10 1k 10k100
V
S
= ±2.5V
V
CM
= 0V
V
OUTP-P
(V)
THD+N (%)
625567 G22
1
0.1
0.01
0.001
0.01 1 100.1
V
S
= ±0.9V
V
CM
= 0V
A
V
= 2
R
G
= R
F
= 10kΩ
1kHz
500Hz
V
OUTP-P
(V)
THD+N (%)
625567 G23
1
0.1
0.01
0.001
0.01 10.1
V
S
= ±2.5V
V
CM
= 0V
A
V
= 2
R
F
= R
G
= 10kΩ
1kHz
500Hz
FREQUENCY (Hz)
AMPLITUDE (dB)
625567 G24
10k 1M 10M100k
PHASE
MAGNITUDE
80
40
20
60
–20
50
30
70
10
0
–10
PHASE
–60
–100
–120
–80
–160
–90
–110
–70
–130
–140
–150
V
S
= ±2.5V
V
CM
= 0V