Datasheet

6
LT1122
CCHARA TERIST
ICS
UW
AT
Y
P
I
CA
LPER
F
O
R
C
E
Distribution of Input Offset Input Bias and Offset Currents Bias and Offset Currents Over
Voltage Over Temperature The Common-Mode Range
CHIP TEMPERATURE (°C)
0
1
INPUT BIAS AND OFFSET CURRENTS (pA)
300
1K
3K
10K
25 50 75 100
125
100
30
10
3
BIAS
CURRENT
OFFSET
CURRENT
V = ±15V
V = 0V
S
CM
LT1122•TPC06
30K
100K
COMMON-MODE INPUT VOLTAGE (V)
–15
0
INPUT BIAS AND OFFSET CURRENT (pA)
20
40
60
80
100
120
–10 –5 5 15
V = ±15V
T = 25°C
S
A
0
10
(NOT-WARMED UP)
BIAS
CURRENT
OFFSET
CURRENT
LT1122•TPC07
Warm-up Drift Noise Spectrum 0.1Hz to 10Hz Noise
FREQUENCY (Hz)
1
10
VOLTAGE NOISE DENSITY (nV/ Hz)
100
1000
3 10 10k
30 100 300 1k
3k
V = ±15V
T = 25°C
S
A
√
LT1122•TPC09
TIME (SECONDS)
0
NOISE VOLTAGE (1 V/DIV)
24 8106
µ
LT1122•TPC10
Total Harmonic Distortion Total Harmonic Distortion Intermodulation Distortion
+ Noise vs Frequency + Noise vs Frequency (CCIF Method) vs Frequency
Inverting Gain Non-Inverting Gain LT1122 and LF156*
FREQUENCY (Hz)
20
0.0001
TOTAL HARMONIC DISTORTION + NOISE (%)
0.001
0.01
0.1
100 1k 20k
A = –50
V
A = –10
A = –1
10k
T = 25°C
V = ±15V
Z = 5k//15pF
V = 7V RMS
A
S
L
O
V
V
LT1122•TPC11
FREQUENCY (Hz)
20
0.0001
TOTAL HARMONIC DISTORTION + NOISE (%)
0.001
0.01
0.1
100 1k 20k
A = +50
V
A = +10
A = +1
10k
T = 25°C
V = ±15V
Z = 5k//15pF
V = 7V RMS
A
S
L
O
V
V
LT1122•TPC12
FREQUENCY (Hz)
3k
0.0001
INTERMODULATION DISTORTION (IMD) (%)
0.001
0.01
0.1
10k 20k
LT1122
LF156
V = ±15V
T = 25°C
A = –10
V = 7V RMS
Z = 5k//15pF
S
A
V
O
L
*SEE LT1115 DATA SHEET FOR DEFINITION
OF CCIF TESTING
LT1122•TPC13
INPUT OFFSET VOLTAGE ( V)
–900
0
NUMBER OF UNITS
200
400
600
800
–500 –100
100
500
V = ±15V
T = 25°C
(NOT WARMED UP)
S
A
3370 UNITS TESTED
IN ALL PACKAGES
µ
LT1122•TPC05
900
TIME AFTER POWER ON (MINUTES)
0
1
CHANGE IN OFFSET VOLTAGE ( V)
50
100
150
200
250
123
V = ±15V
T = 25°C
S
A
J PACKAGE
N PACKAGE
SO PACKAGE
IN STILL AIR (SO PACKAGE
SOLDERED ONTO BOARD)
LT1122•TPC08
µ