Datasheet

LTC2057/LTC2057HV
10
2057f
For more information www.linear.com/LTC2057
Typical perForMance characTerisTics
Input Current Noise Spectrum
Common Mode Rejection Ratio
vs Frequency
Power Supply Rejection Ratio
vs Frequency Closed Loop Gain vs Frequency
Gain/Phase vs Frequency Gain/Phase vs Frequency
FREQUENCY (Hz)
0.1
0
0.05
0.10
0.20
0.15
INPUT-REFERRED CURRENT
NOISE DENSITY (pA/√Hz)
0.25
1 10 100 1k
10k
2057 G19
V
S
= ±2.5V
V
S
= ±30V
A
V
= +11
FREQUENCY (Hz)
100
0
20
60
40
100
80
CMRR (dB)
120
1000
1k
10k
100k
1M
2057 G20
V
S
= 30V
V
CM
= V
S
/2
FREQUENCY (Hz)
10k
–40
–20
0
60
40
20
GAIN (dB)
PHASE (dB)
80
–30
–10
50
30
10
70
–210
–150
–90
90
30
–30
150
–180
–120
60
0
–60
120
100k
1M
10M
2057 G23
V
S
= ±2.5V
R
L
= 1kΩ
C
L
= 50pF
C
L
= 200pF
PHASE
GAIN
FREQUENCY (Hz)
100
–20
0
20
60
40
100
80
PSRR (dB)
120
1k
10k
100k
1M
10M
2057 G21
V
S
= 30V
V
CM
= V
S
/2
+PSRR
–PSRR
FREQUENCY (Hz)
10k
–40
–20
0
60
40
20
GAIN (dB)
PHASE (dB)
80
–30
–10
50
30
10
70
–210
–150
–90
90
30
–30
150
–180
–120
60
0
–60
120
100k
1M
10M
2057 G24
V
S
= ±30V
R
L
= 1kΩ
C
L
= 50pF
C
L
= 200pF
PHASE
GAIN
FREQUENCY (Hz)
1k
–30
–20
–10
20
10
0
40
30
CLOSED LOOP GAIN (dB)
50
10k
100k
1M
10M
2057 G22
V
S
= ±15V
R
L
= 10kΩ
A
V
= +1
A
V
= +10
A
V
= +100
A
V
= –1