8
LTC1850/LTC1851
18501f
TYPICAL PERFOR A CE CHARACTERISTICS
UW
FREQUENCY (kHz)
10
–100
DISTORTION (dB)
–90
–85
–80
–75
THD
–70
–65
100
1000
185051 G10
–60
–55
–50
–95
10000
2ND HARMONIC
3RD HARMONIC
FREQUENCY (Hz)
1k
CMRR (dB)
40
50
60
10M
LTC1850/51 G11
30
20
0
10k
100k
1M
10
80
70
Distortion vs Input Frequency,
Bipolar Mode, PGA = 0
Input Common Mode Rejection
Ratio vs Frequency, Bipolar Mode,
PGA = 0
FREQUENCY (Hz)
1k
CMRR (dB)
40
50
60
10M
LTC1850/51 G14
30
20
0
10k
100k
1M
10
80
70
Input Common Mode Rejection
Ratio vs Frequency, Unipolar Mode,
PGA = 0
Input Common Mode Rejection
Ratio vs Frequency, Bipolar Mode,
PGA = 1
FREQUENCY (Hz)
1k
CMRR (dB)
40
50
60
10M
LTC1850/51 G13
30
20
0
10k
100k
1M
10
80
70
FREQUENCY (kHz)
10
–100
DISTORTION (dB)
–90
–85
–80
–75
THD
–70
–65
100
1000
185051 G09
–60
–55
–50
–95
10000
2ND HARMONIC
3RD HARMONIC
Distortion vs Input Frequency,
Bipolar Mode, PGA = 1
FREQUENCY (kHz)
10
–100
DISTORTION (dB)
–90
–85
–80
–75
THD
–70
–65
100
1000
185051 G19
–60
–55
–50
–95
10000
3RD HARMONIC
2ND HARMONIC
FREQUENCY (kHz)
10
–100
DISTORTION (dB)
–90
–85
–80
–75
THD
–70
–65
100
1000
185051 G20
–60
–55
–50
–95
10000
3RD HARMONIC
2ND HARMONIC
Distortion vs Input Frequency,
Unipolar Mode, PGA = 0
Distortion vs Input Frequency,
Unipolar Mode, PGA = 1
FREQUENCY (Hz)
1k
CMRR (dB)
40
50
60
10M
LTC1850/51 G16
30
20
0
10k
100k
1M
10
80
70
Input Common Mode Rejection Ratio
vs Frequency, Unipolar Mode,
PGA = 1