Datasheet

LT1498/LT1499
14989fg
14
TYPICAL PERFORMANCE CHARACTERISTICS
Noise Current Spectrum Gain and Phase vs Frequency CMRR vs Frequency
PSRR vs Frequency
Gain Bandwidth and Phase
Margin vs Supply Voltage Channel Separation vs Frequency
Minimum Supply Voltage
0.1Hz to 10Hz
Output Voltage Noise Noise Voltage Spectrum
TOTAL SUPPLY VOLTAGE (V)
1
0
CHANGE IN OFFSET VOLTAGE (μV)
50
100
150
200
23
4
5
14989 G10
250
300
T
A
= 85°C
T
A
= 25°C
T
A
= 70°C
NONFUNCTIONAL
T
A
= –55°C
TIME (1s/DIV)
010
OUTPUT VOLTAGE (200nV/DIV)
14989 G11
V
S
= p2.5V
V
CM
= 0V
FREQUENCY (Hz)
1
80
NOISE VOLTAGE (nV/Hz)
100
120
140
160
10 100 1000
14989 G12
60
40
20
0
180
200
V
S
= 5V, 0V
V
CM
= 2.5V
PNP ACTIVE
V
CM
= 4V
NPN ACTIVE
FREQUENCY (Hz)
1
4
CURRENT NOISE (pA/
√Hz
)
5
6
7
8
10 100 1000
14989 G13
3
2
1
0
9
10
V
S
= 5V, 0V
V
CM
= 2.5V
PNP ACTIVE
V
CM
= 4V
NPN ACTIVE
FREQUENCY (MHz)
–10
VOLTAGE GAIN (dB)
PHASE SHIFT (DEG)
10
30
20
50
70
–20
0
40
60
0.01 1 10 100
14989 G14
–30
–108
–36
36
0
108
180
–144
–72
72
144
–180
0.1
PHASE
GAIN
R
L
= 10k
V
S
= p1.5V
V
S
= p15V
FREQUENCY (kHz)
40
COMMON MODE REJECTION RATIO (dB)
60
80
70
100
120
30
50
90
110
1 100 1000 10000
14989 G15
20
10
V
S
= p15V
V
S
= p2.5V
FREQUENCY (kHz)
10
POWER SUPPLY REJECTION RATIO (dB)
30
50
40
70
90
0
20
60
80
1 100 1000 10000
14989 G16
–10
10
V
S
= p2.5V
POSITIVE SUPPLY
NEGATIVE SUPPLY
TOTAL SUPPLY VOLTAGE (V)
0
0
GAIN BANDWIDTH (MHz)
PHASE MARGIN (DEG)
4
6
8
10
12
14
5
10
15 20
14989 G17
25
16
18
20
2
0
20
30
40
50
60
70
80
90
100
10
30
PHASE MARGIN
GAIN BANDWIDTH
FREQUENCY (kHz)
0.01
–110
CHANNEL SEPARATION (dB)
–100
–90
–80
–70
0.1 1 10 100 1000
14989 G18
–120
–130
–140
–150
–60
–50
V
S
= p15V
V
OUT
= p1V
P-P
R
L
= 2k